具体实施方式Detailed ways
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本发明，并不用于限定本发明。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
需要理解的是，本文所用术语“近侧”和“远侧”是相对于操纵施夹钳的手柄组件的临床医生而言的。术语“近侧”是指靠近临床医生的部分，术语“远侧”则是指远离临床医生的部分。即手柄组件为近侧，钳口组件为远侧，如某个零部件的近侧端表示相对靠近手柄组件的一端，远侧端则表示相对靠近钳口组件的一端。然而，施夹钳可以在许多方向和位置使用，因此这些表达相对位置关系的术语并不是受限和绝对的。It should be understood that the terms "proximal" and "distal" are used herein with respect to a clinician manipulating the handle assembly of the clip applier. The term "proximal" refers to the portion closer to the clinician and the term "distal" refers to the portion remote from the clinician. That is, the handle assembly is the proximal side, and the jaw assembly is the far side. For example, the proximal end of a component means the end relatively close to the handle assembly, and the distal end means the end relatively close to the jaw assembly. However, the clip applier can be used in many orientations and positions, so these terms expressing relative positional relationships are not limiting and absolute.
在本发明中，除非另有明确的规定和限定，“相连”、“连接”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸地连接，还可以是可运动地连接，或成一体；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系如抵接。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。需要说明的是，在“相连”、“连接”前有限定语时，其具有相应限定语所限定的含义，只排除明显需要排除的情形，不排除其它可能的情形，如“可拆卸地连接”指的是可拆卸式的连接，不包括成一体，但可运动连接等并不排除在外。In the present invention, terms such as "connected" and "connected" should be interpreted in a broad sense unless otherwise clearly specified and limited, for example, they can be fixedly connected, detachably connected, or movably connected. , or integrated; it can be directly connected or indirectly connected through an intermediary, it can be the internal communication of two elements or the interaction relationship between two elements such as butting. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations. It should be noted that when there are qualifiers before "connected" and "connected", it has the meaning defined by the corresponding qualifiers, and only the situations that obviously need to be excluded are excluded, and other possible situations are not excluded, such as "detachably connected" Refers to the detachable connection, does not include integrated, but the movable connection is not excluded.
以图1中施夹钳的放置方向和角度为参考，本文所用术语“第一方向”是指垂直于图1中纸面的方向。“第二方向”是指上下方向（即竖直方向）。“第一方向”与“第二方向”相互垂直。With reference to the placement direction and angle of the clip applier in FIG. 1 , the term “first direction” as used herein refers to the direction perpendicular to the paper in FIG. 1 . "Second direction" refers to the up-down direction (ie, the vertical direction). The "first direction" and the "second direction" are perpendicular to each other.
请参阅图1，本实施方式提供一种施夹钳，具体是一种连续施夹的施夹钳，用于将夹子59施加到人体上，例如血管或除血管以外的其它组织。Referring to FIG. 1 , this embodiment provides a clip applier, specifically a clip applier for continuous clip application, for applying aclip 59 to a human body, such as a blood vessel or other tissues other than blood vessels.
本实施例施夹钳包括操作组件、自操作组件延伸的杆身组件1、钳口组件6、传动机构和夹仓8。夹仓8具有夹子59。钳口组件6设置于杆身组件1的远端。The clip applier in this embodiment includes an operating assembly, ashaft assembly 1 extending from the operating assembly, ajaw assembly 6 , a transmission mechanism and aclip chamber 8 . Theclip cartridge 8 has clips 59 . Thejaw assembly 6 is disposed at the distal end of theshaft assembly 1 .
操作组件包括壳体和可活动地安装在壳体上的致动件13，壳体按位置关系分为头部壳体和从头部壳体的下侧延伸出的手柄壳体17，手柄壳体17和致动件13组成了手柄组件，用户可以单手掌握手柄壳体17，手指拉动致动件13，使得致动件13相对壳体而运动。本领域的技术人员很容易知道，虽然示出和描述致动件13，但是本文所公开的施夹钳也可以无需包括致动件13，例如，施夹钳可以为电动的并且可包括用于致动马达以控制装置的击发的致动按钮。The operating assembly includes a housing and anactuator 13 movably installed on the housing. The housing is divided into a head housing and ahandle housing 17 extending from the underside of the head housing according to the positional relationship. The handle housing Thebody 17 and theactuator 13 form a handle assembly, and the user can grasp thehandle housing 17 with one hand, and pull theactuator 13 with fingers, so that theactuator 13 moves relative to the housing. Those skilled in the art will readily appreciate that although theactuator 13 is shown and described, the clip applier disclosed herein may not need to include theactuator 13, for example, the clip applier may be electric and may include a An actuation button that actuates the motor to control the firing of the device.
本实施例中，部分传动机构收容于操作组件的壳体内，部分传动机构位于杆身组件1。In this embodiment, part of the transmission mechanism is accommodated in the housing of the operating assembly, and part of the transmission mechanism is located in theshaft assembly 1 .
为实现送夹动作和钳口闭合动作（施夹动作），传动机构包括送夹驱动机构和钳口驱动机构。送夹驱动机构用于执行送夹动作，钳口驱动机构用于执行钳口闭合动作。In order to realize the clamp feeding action and jaw closing action (clamping action), the transmission mechanism includes a clamp feeding drive mechanism and a jaw drive mechanism. The clip feeding driving mechanism is used for performing the clip feeding action, and the jaw driving mechanism is used for performing the jaw closing action.
传动机构择一地具有第一状态和第二状态。在第一状态，送夹驱动机构驱动夹仓8的夹子59移至钳口组件6，使夹子59被稳定夹持于钳口组件6中以等待施夹。在第二状态，钳口驱动机构驱动钳口组件6运动，使得钳口组件6闭合，从而钳口组件6中的夹子59夹紧组织或血管。The transmission alternatively has a first state and a second state. In the first state, the clip feeding driving mechanism drives theclip 59 of theclip magazine 8 to move to thejaw assembly 6, so that theclip 59 is stably clamped in thejaw assembly 6 and waits for clipping. In the second state, the jaw driving mechanism drives thejaw assembly 6 to move, so that thejaw assembly 6 is closed, so that theclip 59 in thejaw assembly 6 clamps the tissue or blood vessel.
致动件13用于给传动机构提供动力。具体的，传动机构还包括切换机构，切换机构用于选择性地驱动送夹驱动机构或者钳口驱动机构。致动件13与切换机构抵接而向切换机构提供动力，切换机构将该动力择一地传递给送夹驱动机构或者钳口驱动机构。致动件13能够驱动切换机构向远端移动。在传动机构处于第一状态时，切换机构向远端移动以驱动送夹驱动机构向远端移动。切换机构向远端移动预设行程后，传动机构从第一状态切换至第二状态。当传动机构切换至第二状态时，切换机构继续向远端移动以驱动钳口驱动机构向远端移动。Theactuator 13 is used to provide power to the transmission mechanism. Specifically, the transmission mechanism also includes a switching mechanism, which is used to selectively drive the clip feeding driving mechanism or the jaw driving mechanism. The actuatingmember 13 abuts against the switching mechanism to provide power to the switching mechanism, and the switching mechanism transmits the power to the clip feeding driving mechanism or the jaw driving mechanism alternatively. Theactuator 13 can drive the switching mechanism to move to the distal end. When the transmission mechanism is in the first state, the switching mechanism moves to the far end to drive the clamp feeding drive mechanism to move to the far end. After the switching mechanism moves to the preset distance, the transmission mechanism switches from the first state to the second state. When the transmission mechanism is switched to the second state, the switching mechanism continues to move distally to drive the jaw driving mechanism to move distally.
切换机构与钳口驱动机构可操作地连接，钳口驱动机构包括抵推部35，通过推动抵推部35，能够推动钳口驱动机构向远端移动。具体而言：The switching mechanism is operably connected with the jaw driving mechanism, and the jaw driving mechanism includes a resistingportion 35, and by pushing the resistingportion 35, the jaw driving mechanism can be pushed to move to the distal end. in particular:
传动机构处于第一状态时，切换机构与送夹驱动机构结合以驱动送夹驱动机构运动；切换机构与钳口驱动机构的抵推部35分离，在切换机构驱动送夹驱动机构运动时，钳口驱动机构未被驱动处于静止状态。When the transmission mechanism is in the first state, the switching mechanism is combined with the clip feeding driving mechanism to drive the clip feeding driving mechanism to move; The mouth drive mechanism is not driven and is in a static state.
传动机构处于第二状态时，切换机构与送夹驱动机构分离，送夹驱动机构不再前进；切换机构与钳口驱动机构的抵推部35结合以驱动钳口驱动机构运动，使得钳口驱动机构驱动钳口组件6运动。When the transmission mechanism is in the second state, the switching mechanism is separated from the clip feeding driving mechanism, and the clip feeding driving mechanism no longer advances; the switching mechanism is combined with thethrust portion 35 of the jaw driving mechanism to drive the jaw driving mechanism to move, so that the jaw drives The mechanism drives thejaw assembly 6 to move.
本实施例中，送夹驱动机构与钳口驱动机构的运动独立且分时进行，能够防止因二者联动而带来的一些问题，如结构复杂，运动关系复杂等。In this embodiment, the movement of the clip feeding driving mechanism and the jaw driving mechanism are independent and time-sharing, which can prevent some problems caused by the linkage of the two, such as complex structure and complex motion relationship.
本实施例中，医生操作一个致动件13，通过致动件13作用于切换机构，进而选择性地作用于送夹驱动机构和钳口驱动机构两个不同的驱动机构，使得两个不同的驱动机构能够按照预设次序完成相应的动作。即医生操作一个致动件13在一个总体行程中就能完成送夹动作和钳口闭合动作两个动作，且这两个动作满足预设次序，不会出现相互干扰的问题，保证了医生手术操作的安全性和顺畅性，且操作简单，对用户友好。In this embodiment, the doctor operates an actuatingmember 13, acts on the switching mechanism through the actuatingmember 13, and then selectively acts on two different driving mechanisms of the clip feeding driving mechanism and the jaw driving mechanism, so that two different The driving mechanism can complete corresponding actions according to a preset sequence. That is to say, the doctor can operate oneactuator 13 to complete the two actions of the clip feeding action and the jaw closing action in one overall stroke, and these two actions meet the preset order, and there will be no mutual interference problem, which ensures the doctor's operation The operation is safe and smooth, and the operation is simple and user-friendly.
参考图2、12，送夹驱动机构包括第一驱动件22、与第一驱动件22连接的送夹杆24。杆身组件1包括主轴3。第一驱动件22套设于主轴3并能沿主轴3移动。主轴3设置有第一容置槽5，第一容置槽5沿主轴3的纵长方向延伸。送夹杆24位于第一容置槽5并在第一容置槽5中移动。送夹杆24的近端与第一驱动件22连接，送夹杆24的远端能够作用于夹子59。Referring to FIGS. 2 and 12 , the clip feeding driving mechanism includes a first drivingmember 22 and aclip feeding rod 24 connected to the first drivingmember 22 . Theshaft assembly 1 includes aspindle 3 . The first drivingmember 22 is sheathed on themain shaft 3 and can move along themain shaft 3 . Themain shaft 3 is provided with a first accommodating groove 5 , and the first accommodating groove 5 extends along the longitudinal direction of themain shaft 3 . The clampingrod 24 is located in the first accommodating groove 5 and moves in the first accommodating groove 5 . The proximal end of the clampingrod 24 is connected to the first drivingmember 22 , and the distal end of the clampingrod 24 can act on theclip 59 .
第一驱动件22能够驱动送夹杆24运动，从而驱动夹仓8的夹子59进入钳口组件6。具体的，在第一状态下，切换机构与第一驱动件22可操作地连接以执行送夹动作，切换机构驱动第一驱动件22向远端运动，使得送夹杆24向远端移动以将夹仓8的夹子59抵推至钳口组件6。在第二状态下，切换机构与第一驱动件22分离，第一驱动件22不再前进，此时夹子59已经被稳定夹持于钳口组件6中。The first drivingmember 22 can drive theclip feeding rod 24 to move, thereby driving theclip 59 of theclip magazine 8 to enter thejaw assembly 6 . Specifically, in the first state, the switching mechanism is operatively connected to the first drivingmember 22 to perform the clamping action, and the switching mechanism drives the first drivingmember 22 to move distally, so that the clampingrod 24 moves distally to Push theclip 59 of theclip magazine 8 to thejaw assembly 6 . In the second state, the switching mechanism is separated from the first drivingmember 22 , and the first drivingmember 22 does not move forward. At this time, theclip 59 has been stably clamped in thejaw assembly 6 .
参考图3-5，钳口驱动机构包括外管25和第二驱动件，切换机构与第二驱动件可操作地连接。外管25套设于杆身组件1的主轴3，外管25的远端与钳口组件6相配合（具体见后文描述），外管25的近端与第二驱动件连接，第二驱动件能够驱动外管25运动以驱动钳口组件6运动。Referring to FIGS. 3-5 , the jaw driving mechanism includes anouter tube 25 and a second driving member, and the switching mechanism is operatively connected to the second driving member. Theouter tube 25 is sheathed on themain shaft 3 of theshaft assembly 1, the distal end of theouter tube 25 is matched with the jaw assembly 6 (see the description below for details), the proximal end of theouter tube 25 is connected with the second driving member, and the second The driving member can drive theouter tube 25 to move to drive thejaw assembly 6 to move.
抵推部35设置于第二驱动件。切换机构通过驱动抵推部35而使第二驱动件向远端移动。在第一状态，切换机构与抵推部35分离，切换机构不驱动第二驱动件向远端移动，第二驱动件处于静止状态。在第二状态下，切换机构与抵推部35相抵接以执行钳口闭合动作，切换机构驱动第二驱动件向远端移动，使得外管25向远端移动以使钳口组件6闭合。The resistingportion 35 is disposed on the second driving member. The switching mechanism drives the resistingportion 35 to move the second driving member to the distal end. In the first state, the switching mechanism is separated from the resistingportion 35, the switching mechanism does not drive the second driving member to move distally, and the second driving member is in a static state. In the second state, the switching mechanism abuts against the pushingportion 35 to perform jaw closing action, and the switching mechanism drives the second driving member to move distally, so that theouter tube 25 moves distally to close thejaw assembly 6 .
参考图4-5、11，第二驱动件包括座体29、第一杆体30和第二杆体31。座体29套设于主轴3，座体29的远端与外管25的近端连接。座体29具有第一侧和第二侧，第一侧与第二侧沿第一方向相对设置。第一侧朝外延伸有第一连接部133，第二侧朝外延伸有第二连接部134。第一杆体30的远端与第一连接部133连接，第二杆体31的远端与第二连接部134连接。本实施例设置两个杆体是为了使第二驱动件的运动更加平衡，以及提高传动机构整体的稳定性。当然，杆体也可以仅设置一个。Referring to FIGS. 4-5 and 11 , the second driving member includes aseat body 29 , afirst rod body 30 and asecond rod body 31 . Theseat body 29 is sheathed on themain shaft 3 , and the distal end of theseat body 29 is connected with the proximal end of theouter tube 25 . Theseat body 29 has a first side and a second side, and the first side and the second side are disposed opposite to each other along the first direction. A first connectingportion 133 extends outward from the first side, and a second connectingportion 134 extends outward from the second side. The distal end of thefirst rod body 30 is connected to the first connectingportion 133 , and the distal end of thesecond rod body 31 is connected to the second connectingportion 134 . In this embodiment, two rod bodies are provided to make the movement of the second driving member more balanced and to improve the overall stability of the transmission mechanism. Of course, only one rod body can also be provided.
两个杆体的结构大体上相同，以其中一个杆体为例，对杆体的结构进行说明。杆体上设置有滑行槽32，滑行槽32为封闭的槽。抵推部35设置于杆体，具体的，抵推部35设置于滑行槽32的远端。由于本实施例中第二驱动件包括两个杆体，因此钳口驱动机构具有两个抵推部35。为了减轻杆体的重量，每个杆体还设置有减重槽34，减重槽34位于滑行槽32的远侧。抵推部35设置于滑行槽32与减重槽34之间。设置减重槽34的目的是为了减少杆体的重量，使得施夹钳整体的重量更轻，更加方便使用。设置滑行槽32的目的是为了对切换机构进行导向，切换机构至少部分在滑行槽32中运动，使得切换机构的运动更加稳定，具体结构将在后文详细描述。The structures of the two rod bodies are substantially the same, and one of the rod bodies is taken as an example to describe the structure of the rod body. A slidinggroove 32 is arranged on the rod body, and the slidinggroove 32 is a closed groove. The resistingportion 35 is disposed on the rod body, specifically, the resistingportion 35 is disposed at the distal end of the slidinggroove 32 . Since the second driving member in this embodiment includes two rod bodies, the jaw driving mechanism has two resistingparts 35 . In order to reduce the weight of the rod body, each rod body is also provided with aweight reducing groove 34 , and theweight reducing groove 34 is located at the far side of the slidinggroove 32 . The resistingportion 35 is disposed between the slidinggroove 32 and theweight reducing groove 34 . The purpose of setting the weight-reducinggroove 34 is to reduce the weight of the rod body, so that the overall weight of the clip applier is lighter and more convenient to use. The purpose of setting the slidinggroove 32 is to guide the switching mechanism. The switching mechanism at least partially moves in the slidinggroove 32 to make the movement of the switching mechanism more stable. The specific structure will be described in detail later.
切换机构包括基座36、第一离合机构和第二离合机构。为了使得切换机构的整体结构更加紧凑，充分地利用施夹钳内部的空间，也为了使得切换机构的运动更加平稳顺畅，将部分第一离合机构容置于基座36内，第二离合机构至少部分的容置于基座36内。致动件13与基座36相抵接，以向切换机构提供动力使得切换机构向远端移动。The switching mechanism includes abase 36, a first clutch mechanism and a second clutch mechanism. In order to make the overall structure of the switching mechanism more compact, make full use of the space inside the clip applier, and also to make the movement of the switching mechanism more stable and smooth, part of the first clutch mechanism is accommodated in thebase 36, and the second clutch mechanism is at least Partially housed in thebase 36 . The actuatingmember 13 abuts against the base 36 to provide power to the switching mechanism so that the switching mechanism moves distally.
参考图6，传动机构处于第一状态时，基座36套设于第一驱动件22。具体的，基座36具有通孔135，第一驱动件22容置于通孔135中，通孔135贯穿基座36的远端端面和近端端面，使得第一驱动件22能够在通孔135中穿行。传动机构处于第二状态时，第一驱动件22不再前进，基座36仍然前进，基座36与第一驱动件22分离。Referring to FIG. 6 , when the transmission mechanism is in the first state, thebase 36 is sleeved on the first drivingmember 22 . Specifically, thebase 36 has a throughhole 135, and the first drivingmember 22 is accommodated in the throughhole 135, and the throughhole 135 runs through the distal end surface and the proximal end surface of thebase 36, so that the first drivingmember 22 can pass through the through hole. 135 through. When the transmission mechanism is in the second state, the first drivingmember 22 no longer advances, thebase 36 still advances, and thebase 36 is separated from the first drivingmember 22 .
第一离合机构包括第一离合件46和离合切换机构。第一离合件46与离合切换机构连接。第二离合机构包括第二离合件。The first clutch mechanism includes a firstclutch member 46 and a clutch switching mechanism. The firstclutch member 46 is connected with the clutch switching mechanism. The second clutch mechanism includes a second clutch member.
传动机构处于第一状态时，第二离合件与第二驱动件的抵推部35分离，第一离合件46与第一驱动件22连接，使得切换机构能够驱动第一驱动件22运动以使送夹杆24运动，从而执行送夹动作。When the transmission mechanism is in the first state, the second clutch part is separated from the pushingpart 35 of the second driving part, and the firstclutch part 46 is connected with the first drivingpart 22, so that the switching mechanism can drive the first drivingpart 22 to move so that The clampinglever 24 moves to perform the clamping action.
传动机构处于第二状态时，在离合切换机构的作用下，第一离合件46与第一驱动件22分离；第二离合件与第二驱动件的抵推部35抵接，使得切换机构能够驱动第二驱动件运动，以驱动外管25运动，从而执行钳口闭合动作。下面以图1中施夹钳的放置方向和角度为参考，对切换机构的结构和原理进行更加详细的说明：When the transmission mechanism is in the second state, under the effect of the clutch switching mechanism, the firstclutch member 46 is separated from the first drivingmember 22; the second clutch member abuts against the pushingportion 35 of the second driving member, so that the switching mechanism can The second driving member is driven to move, so as to drive theouter tube 25 to move, so as to execute the action of closing the jaws. The structure and principle of the switching mechanism will be described in more detail below with reference to the placement direction and angle of the clip applier in Figure 1:
参考图4、6，基座36具有沿第一方向相对的第一侧部和第二侧部。基座36的第一侧部设置有第一套接部37，基座36的第二侧部设置有第二套接部39。第一套接部37套设于第一杆体30并能沿第一杆体30移动，第二套接部39套设于第二杆体31并能沿第二杆体31移动。由此，实现切换机构与第二驱动件可操作的连接。第一侧部还设置有第一腰形孔41，第二侧部还设置有第二腰形孔42。第一腰形孔41设置于第一套接部37的上方，第二腰形孔42设置于第二套接部39的上方。每个腰形孔均是沿第二方向延伸。4, 6, thebase 36 has a first side and a second side opposite along a first direction. Afirst socket portion 37 is provided on a first side of thebase 36 , and asecond socket portion 39 is provided on a second side of thebase 36 . Thefirst sleeve part 37 is sleeved on thefirst rod body 30 and can move along thefirst rod body 30 , and thesecond sleeve part 39 is sleeved on thesecond rod body 31 and can move along thesecond rod body 31 . Thereby, an operative connection between the switching mechanism and the second driving member is realized. The first side part is also provided with a first waist-shapedhole 41 , and the second side part is also provided with a second waist-shaped hole 42 . The first waist-shapedhole 41 is disposed above thefirst sleeve portion 37 , and the second waist-shaped hole 42 is disposed above thesecond sleeve portion 39 . Each waist-shaped hole extends along the second direction.
参考图2-3、5-6，离合切换机构包括导向柱45。头部壳体内设置有导轨，导向柱45能够在导轨上移动，导向柱45与第一离合件46连接。Referring to FIGS. 2-3 and 5-6 , the clutch switching mechanism includes aguide column 45 . A guide rail is arranged inside the head housing, and theguide post 45 can move on the guide rail, and theguide post 45 is connected with the firstclutch member 46 .
具体的，施夹钳的头部壳体包括第一头部壳体18和第二头部壳体19。第一头部壳体18与第二头部壳体19沿主轴3的轴向对称设置。导轨可以择一地设置在第一头部壳体18的内壁或第二头部壳体19的内壁。为了使得导向柱45在导轨上的运动更加平稳，导轨对称设置在第一头部壳体18和第二头部壳体19的内壁。即，第一头部壳体18的内壁设置有导轨，第二头部壳体19的内壁也设置有导轨。导向柱45具有第一端和第二端。导向柱45的第一端在第一头部壳体18内壁的导轨上移动，导向柱45的第二端在第二头部壳体19内壁的导轨上移动。Specifically, the head shell of the clip applier includes afirst head shell 18 and asecond head shell 19 . Thefirst head housing 18 and thesecond head housing 19 are arranged symmetrically along the axial direction of themain shaft 3 . The guide rail can be alternatively arranged on the inner wall of thefirst head shell 18 or the inner wall of thesecond head shell 19 . In order to make the movement of theguide post 45 on the guide rails more stable, the guide rails are symmetrically arranged on the inner walls of thefirst head housing 18 and thesecond head housing 19 . That is, the inner wall of thefirst head housing 18 is provided with guide rails, and the inner wall of thesecond head housing 19 is also provided with guide rails. Theguide post 45 has a first end and a second end. The first end of theguide column 45 moves on the guide rail of the inner wall of thefirst head housing 18 , and the second end of theguide column 45 moves on the guide rail of the inner wall of thesecond head housing 19 .
导轨包括第一引导面43和第二引导面44。第二引导面44高于第一引导面43。导向柱45能够在第一引导面43和第二引导面44上移动。第一引导面43通过斜面与第二引导面44平滑连接，使得导向柱45的运动更加顺畅。The guide rail includes afirst guide surface 43 and asecond guide surface 44 . Thesecond guide surface 44 is higher than thefirst guide surface 43 . Theguide post 45 is movable on thefirst guide surface 43 and thesecond guide surface 44 . Thefirst guide surface 43 is smoothly connected to thesecond guide surface 44 through an inclined surface, so that the movement of theguide column 45 is smoother.
导向柱45能够跟随第一离合件46的运动而在导轨上运动。导向柱45在第一引导面43上运动时，第一离合件46与第一驱动件22保持结合状态。由于第二引导面44高于第一引导面43，导向柱45运动至导轨的第二引导面44上时，带动第一离合件46向上移动，使得第一离合件46与第一驱动件22分离。且当第一离合件46与第一驱动件22分离时，第二离合件与钳口驱动机构的抵推部35相抵接以推动钳口驱动机构运动。这样设置的好处是，一方面离合切换机构结构简单，无需增加额外的装置，且充分利用壳体内部空间，结构紧凑；另一方面功耗少，操作顺畅省力。The guide post 45 can move on the guide rail following the movement of the firstclutch member 46 . When theguide column 45 moves on thefirst guide surface 43 , the firstclutch member 46 and the first drivingmember 22 maintain a combined state. Since thesecond guide surface 44 is higher than thefirst guide surface 43, when theguide column 45 moves onto thesecond guide surface 44 of the guide rail, it drives the first clutch 46 to move upward, so that the first clutch 46 and the first drivingmember 22 separate. And when the firstclutch part 46 is separated from the first drivingpart 22, the second clutch part abuts against the resistingpart 35 of the jaw driving mechanism to push the jaw driving mechanism to move. The advantage of this arrangement is that, on the one hand, the structure of the clutch switching mechanism is simple, no additional devices are needed, and the internal space of the housing is fully utilized, resulting in a compact structure; on the other hand, the power consumption is low, and the operation is smooth and labor-saving.
导向柱45容置于基座36，导向柱45的第一端从第一腰形孔41伸出后位于第一头部壳体18内壁的导轨上。导向柱45的第二端从第二腰形孔42伸出后位于第二头部壳体19内壁的导轨上。由于每个腰形孔均沿第二方向延伸，使得导向柱45能够沿第二方向移动（即上下移动）。Theguide post 45 is accommodated in thebase 36 , and the first end of theguide post 45 protrudes from the first waist-shapedhole 41 and is located on the guide rail on the inner wall of thefirst head housing 18 . The second end of theguide post 45 protrudes from the second waist hole 42 and is located on the guide rail on the inner wall of thesecond head housing 19 . Since each waist-shaped hole extends along the second direction, theguide column 45 can move along the second direction (ie, move up and down).
参考图5-6、12，第一驱动件22为环形构件，第一驱动件22的外周面设置有环形挡边23。Referring to FIGS. 5-6 and 12 , the first drivingmember 22 is an annular component, and anannular rib 23 is provided on the outer peripheral surface of the first drivingmember 22 .
参考图4-6，第一离合件46容置于基座36中。第一离合件46包括柱体47、挡块48和卡块49。柱体47的上端与导向柱45连接，使得柱体47能够带动导向柱45向远端或近端移动，同时导向柱45能够带动柱体47沿第二方向移动。挡块48设置于柱体47的底端，卡块49设置于挡块48的底端，卡块49在垂直于第二方向的平面上的投影位于挡块48在该平面的投影的内部。Referring to FIGS. 4-6 , the firstclutch member 46 is received in thebase 36 . The firstclutch member 46 includes acylinder 47 , a blockingblock 48 and alocking block 49 . The upper end of thecolumn 47 is connected with theguide column 45, so that thecolumn 47 can drive theguide column 45 to move to the distal end or the proximal end, and theguide column 45 can drive thecolumn 47 to move along the second direction. The blockingblock 48 is disposed at the bottom of thecylinder 47 , the lockingblock 49 is disposed at the bottom of the blockingblock 48 , and the projection of the blockingblock 49 on a plane perpendicular to the second direction is located inside the projection of the blockingblock 48 on the plane.
卡块49的底端与第一驱动件22可分离地连接。卡块49的底端端面为与第一驱动件22的表面形配的弧形面，使得卡块49与第一驱动件22的连接更加稳定。在第一状态下，卡块49位于环形挡边23的近端，卡块49的远端端面与环形挡边23的近端端面相抵接，卡块49能够向远端抵推环形挡边23，使得第一驱动件22向远端移动。在第二状态下，卡块49向上移动而与环形挡边23分离。The bottom end of the clampingblock 49 is detachably connected to the first drivingmember 22 . The bottom end surface of the clampingblock 49 is an arc-shaped surface matching with the surface of the first drivingmember 22 , so that the connection between the clampingblock 49 and the first drivingmember 22 is more stable. In the first state, the clampingblock 49 is located at the proximal end of theannular rib 23 , the distal end surface of the clampingblock 49 abuts against the proximal end surface of theannular rib 23 , and the clampingblock 49 can push theannular rib 23 distally. , so that the first drivingmember 22 moves to the distal end. In the second state, the lockingblock 49 moves upward to separate from theannular rib 23 .
卡块49的近端端面为倾斜面，由此，当第一驱动件22及第一离合件46复位时（具体见后文描述），卡块49的近端端面能够从环形挡边23的远端通过，使得卡块49回到环形挡边23的近端。The proximal end surface of the clampingblock 49 is an inclined surface, thus, when the first drivingmember 22 and the firstclutch member 46 are reset (see later description for details), the proximal end surface of the clampingblock 49 can be moved from thering rib 23 The distal end passes through, so that theblock 49 returns to the proximal end of theannular rib 23 .
第一离合件46还包括第一弹簧50。第一弹簧50套设于柱体47，第一弹簧50的上端与导向柱45抵接，第一弹簧50的下端与挡块48的上端抵接。在第一状态时，第一弹簧50处于压缩状态，第一弹簧50给挡块48以向下的力，使得卡块49的底端与第一驱动件22更稳定的抵接，提高送夹动作的稳定性。The firstclutch member 46 also includes afirst spring 50 . Thefirst spring 50 is sheathed on thecolumn body 47 , the upper end of thefirst spring 50 abuts against theguide column 45 , and the lower end of thefirst spring 50 abuts against the upper end of the blockingblock 48 . In the first state, thefirst spring 50 is in a compressed state, and thefirst spring 50 gives a downward force to theblock 48, so that the bottom end of theblock 49 abuts against the first drivingmember 22 more stably, improving the clamping speed. Action stability.
综上，传动机构处于第一状态时，在致动件13的作用下，基座36向远端移动，第一离合件46向远端移动，导向柱45在第一离合件46的作用下沿第一引导面43向远端移动，当导向柱45从第一引导面43运动到第二引导面44时，导向柱45带动第一离合件46向上移动，使得第一离合件46与第一驱动件22分离，传动机构切换至第二状态。To sum up, when the transmission mechanism is in the first state, under the action of the actuatingmember 13, the base 36 moves to the distal end, the firstclutch member 46 moves to the distal end, and theguide post 45 is driven by the firstclutch member 46. Move to the distal end along thefirst guide surface 43, when theguide column 45 moves from thefirst guide surface 43 to thesecond guide surface 44, theguide column 45 drives the firstclutch member 46 to move upwards, so that the firstclutch member 46 and the secondclutch member 46 move upward. A drivingmember 22 is separated, and the transmission mechanism switches to the second state.
参考图4-5，第二离合件包括两个推柱，即第一推柱51和第二推柱52。第一推柱51位于第一杆体30的滑行槽32并能在第一杆体30的滑行槽32中移动，第一推柱51的上下两端均与第一套接部37连接。第一推柱51与第一杆体30的抵推部35相配合。第二推柱52位于第二杆体31的滑行槽32并能在第二杆体31的滑行槽32中移动，第二推柱52的上下两端均与第二套接部39连接。第二推柱52与第二杆体31的抵推部35相配合。由于滑行槽32为封闭的槽，推柱不会脱离滑行槽32。Referring to FIGS. 4-5 , the second clutch includes two push columns, namely afirst push column 51 and asecond push column 52 . Thefirst push post 51 is located in the slidinggroove 32 of thefirst rod body 30 and can move in the slidinggroove 32 of thefirst rod body 30 . Thefirst push post 51 cooperates with the resistingportion 35 of thefirst rod body 30 . Thesecond push post 52 is located in the slidinggroove 32 of thesecond rod body 31 and can move in the slidinggroove 32 of thesecond rod body 31 . Thesecond push post 52 cooperates with the resistingportion 35 of thesecond rod body 31 . Since the slidinggroove 32 is a closed groove, the push column will not break away from the slidinggroove 32 .
第二离合件也可以只包括一个推柱。本实施例中设置两个推柱，是为了使切换机构对杆体的推动更加平衡稳定。本实施例通过设置两个杆体、两个套接部以及两个推柱，使得切换机构的运动更加平衡，以及使得第二驱动件的运动也更加平衡，提高了传动机构整体的稳定性。The second clutch part can also only include a push column. In this embodiment, two push columns are provided to make the push of the switching mechanism to the rod body more balanced and stable. In this embodiment, the movement of the switching mechanism and the movement of the second driving member are more balanced by providing two rod bodies, two socket parts and two push columns, thereby improving the overall stability of the transmission mechanism.
传动机构处于第一状态时，第一推柱51与第一杆体30的抵推部35分离，第二推柱52与第二杆体31的抵推部35分离。在致动件13的作用下，基座36向远端移动，第一推柱51在第一杆体30的滑行槽32中向远端移动并逐渐靠近第一杆体30的抵推部35，第二推柱52在第二杆体31的滑行槽32中向远端移动并逐渐靠近第二杆体31的抵推部35。When the transmission mechanism is in the first state, thefirst push pin 51 is separated from the resistingportion 35 of thefirst rod body 30 , and thesecond push rod 52 is separated from the resistingportion 35 of thesecond rod body 31 . Under the action of theactuator 13, the base 36 moves distally, and thefirst push column 51 moves distally in the slidinggroove 32 of thefirst rod body 30 and gradually approaches the resistingportion 35 of thefirst rod body 30. Thesecond push post 52 moves distally in the slidinggroove 32 of thesecond rod body 31 and gradually approaches the resistingportion 35 of thesecond rod body 31 .
传动机构处于第二状态时，第一推柱51与第一杆体30的抵推部35抵接，第二推柱52与第二杆体31的抵推部35抵接，从而，第二离合件驱动第二驱动件向远端移动，使得所述外管25向远端移动以使钳口组件6闭合。When the transmission mechanism is in the second state, thefirst push column 51 abuts against thethrust portion 35 of thefirst rod body 30, and thesecond push column 52 abuts against thepush portion 35 of thesecond rod body 31, so that the second clutch member The second driving member is driven to move to the distal end, so that theouter tube 25 moves to the distal end to close thejaw assembly 6 .
如上文所述，致动件13与基座36相抵接，以向切换机构提供动力使得切换机构向远端移动。As mentioned above, the actuatingmember 13 abuts against the base 36 to provide power to the switching mechanism to move the switching mechanism distally.
参考图7-8，第一套接部37的近端设置有第一卡槽38，第二套接部39的近端设置有第二卡槽40。相应地致动件13具有握持部14及从握持部14向头部壳体内部延伸且对称设置的推爪15，一个推爪15设置于第一卡槽38内，另一个推爪15设置于第二卡槽40内。握持部14用于用户手持。由此，使得致动件13施加给基座36的力更加均匀，使得致动件13与基座36的抵接更加稳定，使基座36能够平稳前进。Referring to FIGS. 7-8 , the proximal end of thefirst sleeve portion 37 is provided with afirst slot 38 , and the proximal end of thesecond sleeve portion 39 is provided with asecond slot 40 . Correspondingly, theactuator 13 has agrip portion 14 and symmetrically arrangedpush claws 15 extending from thegrip portion 14 to the inside of the head housing. It is arranged in thesecond card slot 40 . Thegrip part 14 is used for the user to hold it. Thus, the force applied by theactuator 13 to thebase 36 is more uniform, the abutment between the actuator 13 and thebase 36 is more stable, and the base 36 can move forward smoothly.
施夹钳的第一头部壳体18的内壁设置有第一限位面（附图中未展示），第一限位面与第一套接部37的底端端面形配，第一套接部37的底端位于第一限位面上，第一限位面沿第一套接部37的移动轨迹延伸。参考图9，施夹钳的第二头部壳体19的内壁设置有第二限位面20，第二限位面20与第二套接部39底端端面形配，第二套接部39的底端位于第二限位面20上，第二限位面20沿第二套接部39的移动轨迹延伸。由此，当基座36向远端或近端移动时，第一套接部37在第一限位面上移动，第二套接部39在第二限位面20上移动，使得基座36的移动更加稳定精确。第一限位面与第二限位面20的结构大致相同。The inner wall of thefirst head housing 18 of the clip applicator is provided with a first limiting surface (not shown in the drawings), and the first limiting surface is matched with the bottom end surface of thefirst sleeve part 37, and the first set The bottom end of the connectingportion 37 is located on the first limiting surface, and the first limiting surface extends along the moving track of thefirst sleeve portion 37 . With reference to Fig. 9, the inner wall of thesecond head housing 19 of the clip applier is provided with a second limitingsurface 20, the second limitingsurface 20 is matched with the bottom end surface of thesecond socket part 39, and the second socket part The bottom end of 39 is located on the second limitingsurface 20 , and the second limitingsurface 20 extends along the moving track of thesecond sleeve part 39 . Thus, when the base 36 moves toward the distal end or the proximal end, thefirst socket portion 37 moves on the first limiting surface, and thesecond socket portion 39 moves on the second limitingsurface 20, so that the base 36's movement is more stable and precise. The structures of the first limiting surface and the second limitingsurface 20 are substantially the same.
参考图1、10，本实施例中，钳口组件6与杆身组件1枢转连接以使钳口组件6能够相对杆身组件1绕第一枢转轴线53转动。具体的，钳口组件6限定第一纵长轴线7，杆身组件1限定第二纵长轴线2，钳口组件6能够相对杆身组件1绕第一枢转轴线53转动，使得第一纵长轴线7与第二纵长轴线2平行或呈角度，由此，便于医生对钳口组件6的位置和角度的调整，从而方便使用。Referring to FIGS. 1 and 10 , in this embodiment, thejaw assembly 6 is pivotally connected to theshaft assembly 1 so that thejaw assembly 6 can rotate around thefirst pivot axis 53 relative to theshaft assembly 1 . Specifically, thejaw assembly 6 defines a first longitudinal axis 7, theshaft assembly 1 defines a second longitudinal axis 2, and thejaw assembly 6 can rotate relative to theshaft assembly 1 around afirst pivot axis 53, so that the first longitudinal axis The long axis 7 is parallel to or at an angle to the second longitudinal axis 2 , so that it is convenient for the doctor to adjust the position and angle of thejaw assembly 6 , so that it is convenient to use.
本实施例施夹钳还包括传动组件、转向杆组件和操作元件108。操作元件108与传动组件可驱动地连接，传动组件与转向杆组件可驱动地连接。响应于施加于操作元件108的力，操作元件108运动以驱动传动组件运动，使得转向杆组件运动以驱动钳口组件6相对杆身组件1绕第一枢转轴线53转动。The clip applier in this embodiment also includes a transmission assembly, a steering rod assembly and anoperating element 108 . Theoperating element 108 is drivably connected to a transmission assembly which is drivably connected to the steering rod assembly. In response to a force applied to theoperating element 108 , theoperating element 108 moves to drive the transmission assembly so that the steering rod assembly moves to drive thejaw assembly 6 relative to theshaft assembly 1 about thefirst pivot axis 53 .
参考图11，传动组件与主轴3可操作的连接。传动组件包括第一传动件118与第二传动件120，第二传动件120套设于主轴3，第一传动件118与第二传动件120可传动地连接。传动组件位于座体29的近侧，并且传动组件位于抵推部35的远侧。即，传动组件大体上位于座体29与抵推部35之间。将传动组件设置在座体29和抵推部35之间是为了器械整体布局更紧凑，更便于操作，具体的，操作元件108应尽量靠近手柄组件，使得操作元件108能够由操纵手柄组件的同一只手操纵。使得医生的操作更加便利，并能提高手术的效率。Referring to FIG. 11 , the transmission assembly is operatively connected to themain shaft 3 . The transmission assembly includes afirst transmission member 118 and asecond transmission member 120 , thesecond transmission member 120 is sheathed on themain shaft 3 , and thefirst transmission member 118 and thesecond transmission member 120 are driveably connected. The transmission assembly is located at the proximal side of theseat body 29 , and the transmission assembly is located at the far side of the resistingportion 35 . That is, the transmission assembly is generally located between theseat body 29 and the resistingportion 35 . The purpose of setting the transmission assembly between the base 29 and thethrust part 35 is to make the overall layout of the instrument more compact and easier to operate. Specifically, theoperating element 108 should be as close as possible to the handle assembly so that theoperating element 108 can be controlled by the same handle assembly. hand manipulation. It makes the doctor's operation more convenient and can improve the efficiency of the operation.
本实施例中，操作元件靠近致动件13，以图3为例，操作元件108位于致动件13的左上方并与靠近致动件13，在实际操作过程中，医生大拇指握住手柄壳体17，食指操作操作元件108，其余手指可操作致动件13，可实现仅用一只手就能完全操纵该施夹钳。由于传动组件由操作元件108驱动，为了实现力的有效传递和结构的紧凑，传动组件应尽量靠近操作元件，因此优选的将传动组件设置在座体29和抵推部35之间。关于传动组件、转向杆组件和操作元件的具体结构将在后文详细描述。In this embodiment, the operating element is close to theactuator 13. Taking FIG. 3 as an example, theoperating element 108 is located on the upper left of theactuator 13 and close to theactuator 13. During the actual operation, the doctor holds the handle with his thumb Thehousing 17, the index finger operates theoperating element 108, and the rest of the fingers can operate theactuator 13, so that the clip applier can be fully manipulated with only one hand. Since the transmission assembly is driven by theoperating element 108 , the transmission assembly should be as close as possible to the operation element in order to achieve effective force transmission and compact structure, so the transmission assembly is preferably disposed between theseat body 29 and the resistingportion 35 . The specific structures of the transmission assembly, steering rod assembly and operating elements will be described in detail later.
而正是由于传动组件位于座体29与抵推部35之间，使得座体29与抵推部35之间距离变大，因此座体29与抵推部35之间需要通过杆体连接，如前文所述，为了减轻杆体的重量，才需要在杆体设置减重槽34，有效减少杆体的重量，使得施夹钳整体的重量更轻，更加方便使用。And just because the transmission assembly is located between theseat body 29 and the pushingportion 35, the distance between theseat body 29 and the pushingportion 35 becomes larger, so theseat body 29 and the pushingportion 35 need to be connected by a rod, as As mentioned above, in order to reduce the weight of the rod body, it is necessary to set the weight-reducinggroove 34 on the rod body, which effectively reduces the weight of the rod body, making the overall weight of the clip applier lighter and more convenient to use.
如前文所述，切换机构沿主轴3向远端移动能够使得第二离合件与第二驱动件的抵推部35相抵接。当第二离合件与第二驱动件的抵推部35相抵接时，切换机构继续向远端移动，使得第二驱动件向远端移动而使钳口组件6闭合。当钳口组件6闭合时，切换机构与传动组件之间沿杆身组件1的第二纵长轴线2方向具有预设距离。换言之，切换机构向远端移动时，始终不会与传动组件接触，传动组件的设置不会阻碍切换机构的运动，切换机构的运动与传动组件运动能够互相不产生干涉。As mentioned above, the movement of the switching mechanism to the distal end along themain shaft 3 can make the second clutch member abut against the abuttingportion 35 of the second driving member. When the second clutch abuts against the pushingportion 35 of the second driving member, the switching mechanism continues to move distally, so that the second driving member moves distally to close thejaw assembly 6 . When thejaw assembly 6 is closed, there is a preset distance between the switching mechanism and the transmission assembly along the direction of the second longitudinal axis 2 of theshaft assembly 1 . In other words, when the switching mechanism moves to the distal end, it will never contact the transmission assembly, the transmission assembly will not hinder the movement of the switching mechanism, and the movement of the switching mechanism and the transmission assembly will not interfere with each other.
参考图4-5，施夹钳还包括第一复位件，第一复位件能够在切换机构向远端移动的过程储存第一能量。释放第一能量，切换机构在第一复位件的作用下向近端移动复位。具体而言， 第一复位件包括两个第二弹簧55。其中一个第二弹簧55套设于第一杆体30上，其近端与第一套接部37的远端相抵接，其远端与座体29的第一连接部133相抵接。另一个第二弹簧55套设于第二杆体31上，其近端与第二套接部39的远端相抵接，其远端与座体29的第二连接部134相抵接。切换机构向远端移动的过程中，第一套接部37逐渐向第一连接部133靠近，同时第二套接部39逐渐向第二连接部134靠近，两个第二弹簧55能够被压缩而储存第一能量，释放第一能量，切换机构能够向近端移动复位。Referring to FIGS. 4-5 , the clip applier further includes a first reset member capable of storing first energy when the switching mechanism moves to the distal end. The first energy is released, and the switching mechanism moves toward the proximal end to reset under the action of the first reset member. Specifically, the first reset member includes twosecond springs 55 . One of thesecond springs 55 is sheathed on thefirst rod body 30 , its proximal end abuts against the distal end of thefirst sleeve portion 37 , and its distal end abuts against the first connectingportion 133 of theseat body 29 . Anothersecond spring 55 is sheathed on thesecond rod body 31 , its proximal end abuts against the distal end of thesecond sleeve portion 39 , and its distal end abuts against the second connectingportion 134 of theseat body 29 . During the movement of the switching mechanism to the distal end, thefirst socket part 37 gradually approaches the first connectingpart 133, and at the same time thesecond socket part 39 gradually approaches the second connectingpart 134, and the twosecond springs 55 can be compressed And store the first energy, release the first energy, and the switching mechanism can move to the proximal end to reset.
参考图5、12，每一个滑行槽32的近端设置有限位部33，在初始状态（即切换机构未向远端移动时），在第一复位件的作用下，推柱与其所在的滑行槽32的限位部33抵接。当切换机构的基座36在第一复位件的作用下复位时，推柱在滑行槽32中向近端滑动至与限位部33抵接时，由于限位部33的限位，推柱会停在限位部33处，使得切换机构的基座36能够复位至该位置。Referring to Figures 5 and 12, the proximal end of each slidinggroove 32 is provided with alimit portion 33, and in the initial state (that is, when the switching mechanism does not move to the distal end), under the action of the first reset member, the push column slides with the position where it is located. Thestop portion 33 of thegroove 32 abuts against it. When thebase 36 of the switching mechanism resets under the action of the first reset member, when the push column slides in the slidinggroove 32 to the proximal end until it abuts against thelimit portion 33, due to the limit of thelimit portion 33, the push column It will stop at the limitingportion 33, so that thebase 36 of the switching mechanism can be reset to this position.
参考图4-5，施夹钳还包括第二复位件。第二复位件能够在送夹驱动机构向远端移动的过程储存第二能量。释放第二能量，送夹驱动机构在第二复位件的作用下向近端移动复位。具体而言，第二复位件包括第三弹簧56，第三弹簧56套设于主轴3。第三弹簧56的近端与第一驱动件22的环形挡边23的远端面相抵接，第三弹簧56的远端与主轴3外部的挡圈4相抵接，挡圈4沿主轴3的周向延伸，挡圈4设置于传动组件的近侧。切换机构驱动第一驱动件22向远端移动的过程中，第一驱动件22的环形挡边23逐渐向挡圈4靠近，使得第三弹簧56被压缩而储存第二能量，释放第二能量，第一驱动件22能够向近端移动复位，即送夹驱动机构向近端移动复位。Referring to FIGS. 4-5 , the clip applier also includes a second reset member. The second reset member can store the second energy during the process of the clip feeding driving mechanism moving to the distal end. The second energy is released, and the clamp feeding driving mechanism moves toward the proximal end to reset under the action of the second reset member. Specifically, the second return member includes athird spring 56 , and thethird spring 56 is sheathed on themain shaft 3 . The proximal end of thethird spring 56 abuts against the distal end surface of theannular rib 23 of thefirst driver 22 , the distal end of thethird spring 56 abuts against the retaining ring 4 outside themain shaft 3 , and the retaining ring 4 abuts along themain shaft 3 Extending in the circumferential direction, the retaining ring 4 is arranged on the proximal side of the transmission assembly. When the switching mechanism drives the first drivingmember 22 to move to the distal end, theannular rib 23 of the first drivingmember 22 gradually approaches the retaining ring 4, so that thethird spring 56 is compressed to store the second energy and release the second energy. , the first drivingmember 22 can move to the proximal end to reset, that is, the clip feeding driving mechanism can move to the proximal end to reset.
参考图12，送夹杆24容置于第一容置槽5。在初始状态下（即送夹杆24未向远端移动时），在第二复位件的作用下，送夹杆24的近端能够与第一容置槽5的近端端面抵接。当第一驱动件22在第二复位件的作用下向近端移动复位时，送夹杆24移动至其近端与第一容置槽5的近端端面抵接，使得送夹杆24停止继续向近端移动而复位至该位置处。第一驱动件22在送夹杆24的作用下也停止继续向近端移动。Referring to FIG. 12 , the clampingrod 24 is accommodated in the first accommodation groove 5 . In the initial state (that is, when the clampingrod 24 does not move to the distal end), the proximal end of the clampingrod 24 can abut against the proximal end surface of the first accommodation groove 5 under the action of the second reset member. When the first drivingmember 22 moves to the proximal end under the action of the second reset member, the clampingrod 24 moves to its proximal end and abuts against the proximal end surface of the first accommodating groove 5, so that the clampingrod 24 stops Continue to move proximally to return to this position. The first drivingmember 22 also stops moving to the proximal end under the action of the clampingrod 24 .
参考图3、11，施夹钳还包括第三复位件。第三复位件能够在钳口驱动机构向远端移动的过程储存第三能量，释放第三能量，钳口驱动机构在第三复位件的作用下向近端移动复位。具体而言，第三复位件包括第四弹簧57，第四弹簧57套设于外管25。第四弹簧57的近端与座体29的远端端面相抵接，第四弹簧57的远端与头部壳体的内壁相抵接。切换机构驱动第二驱动件向远端移动的过程中，第四弹簧57被压缩而储存第三能量，释放第三能量，第二驱动件能够向近端移动复位，即钳口驱动机构向近端移动复位。Referring to Figures 3 and 11, the clip applier also includes a third reset member. The third resetting part can store the third energy and release the third energy during the process of the jaw driving mechanism moving to the distal end, and the jaw driving mechanism moves toward the proximal end and resets under the action of the third resetting part. Specifically, the third return member includes afourth spring 57 , and thefourth spring 57 is sleeved on theouter tube 25 . The proximal end of thefourth spring 57 abuts against the distal end surface of thebase body 29 , and the distal end of thefourth spring 57 abuts against the inner wall of the head housing. During the process that the switching mechanism drives the second driving member to move to the distal end, thefourth spring 57 is compressed to store the third energy and release the third energy. end move reset.
参考图3，施加钳的头部壳体设置有限位板21，限位板21对称设置在第一头部壳体18和第二头部壳体19的内壁。在初始状态下（即钳口驱动机构未向远端移动时），在第三复位件的作用下，第二驱动件的座体29与限位板21抵接。当第二驱动件在第三复位件的作用下向近端移动复位时，座体29移动至与限位板21抵接，由于限位板21的限位作用，第二驱动件能够停止继续向近端移动，使得第二驱动件能够复位至该位置处。Referring to FIG. 3 , the head housing of the applying forceps is provided with a limitingplate 21 , and the limitingplate 21 is symmetrically arranged on the inner walls of thefirst head housing 18 and thesecond head housing 19 . In the initial state (that is, when the jaw driving mechanism does not move to the distal end), under the action of the third reset member, theseat body 29 of the second driving member abuts against thelimit plate 21 . When the second driving member moves to the proximal end under the action of the third reset member, theseat body 29 moves to abut against the limitingplate 21, and due to the limiting effect of the limitingplate 21, the second driving member can stop and continue. Move proximally so that the second driver can be reset to this position.
参考图13，本实施例施夹钳还包括转动件58。钳口组件6与杆身组件1通过转动件58枢转连接。转动件58的近端与主轴3的远端枢转连接，使得转动件58能够相对杆身组件1绕第一枢转轴线53转动，转动件58的远端与钳口组件6连接。具体而言，钳口组件6包括可枢转地相连于转动件58远端的第一钳臂115和第二钳臂116，第一钳臂115与第二钳臂116能够彼此相互靠近运动，当转动件58相对杆身组件1绕第一枢转轴线53转动时，钳口组件6能够随转动件58转动，即，钳口组件6能够在转动件58的带动下相对杆身组件1绕第一枢转轴线53转动。Referring to FIG. 13 , the clip applier in this embodiment further includes a rotatingmember 58 . Thejaw assembly 6 is pivotally connected to theshaft assembly 1 through a rotatingmember 58 . The proximal end of the rotatingmember 58 is pivotally connected to the distal end of themain shaft 3 , so that the rotatingmember 58 can rotate relative to theshaft assembly 1 around thefirst pivot axis 53 , and the distal end of the rotatingmember 58 is connected to thejaw assembly 6 . Specifically, thejaw assembly 6 includes afirst pliers arm 115 and asecond pliers arm 116 pivotally connected to the distal end of the rotatingmember 58, thefirst pliers arm 115 and thesecond pliers arm 116 can move closer to each other, When the rotatingmember 58 rotates relative to theshaft assembly 1 around thefirst pivot axis 53, thejaw assembly 6 can rotate with the rotatingmember 58, that is, thejaw assembly 6 can rotate around theshaft assembly 1 under the drive of the rotatingmember 58. Thefirst pivot axis 53 rotates.
夹仓8设置于转动件58，当转动件58相对杆身组件1绕第一枢转轴线53转动时，夹仓8能够随转动件58转动。参考图14，夹仓8包括至少两个夹子59。夹仓8具有夹腔以容置夹子59，夹子59在夹腔内形成堆叠。夹子59的堆叠方向与钳口组件6的第一纵长轴线7呈角度，本实施例中，优选夹子59的堆叠方向与第一纵长轴线7垂直。在其他实施方式中，夹子59的堆叠方向与第一纵长轴线7呈锐角或者钝角。Theclip bin 8 is disposed on the rotatingmember 58 , and when the rotatingmember 58 rotates relative to theshaft assembly 1 around thefirst pivot axis 53 , theclip bin 8 can rotate along with the rotatingmember 58 . Referring to FIG. 14 , theclip cartridge 8 includes at least twoclips 59 . Theclip cartridge 8 has a clip cavity to accommodateclips 59 forming a stack within the clip cavity. The stacking direction of theclips 59 is at an angle to the first longitudinal axis 7 of thejaw assembly 6 , and in this embodiment, preferably, the stacking direction of theclips 59 is perpendicular to the first longitudinal axis 7 . In other embodiments, the stacking direction of theclips 59 forms an acute angle or an obtuse angle with the first longitudinal axis 7 .
夹仓8的夹子59的数量是可调整的，夹子59的数量并不会影响施夹钳的正常使用，在实际使用时可以根据使用需求对夹子59的数量进行调整。在手术过程中，一个连续施夹过程一般向组织或血管施加三个夹子59，因此本实施例中夹仓8包括三个夹子59。The number ofclips 59 of theclip chamber 8 is adjustable, and the number ofclips 59 will not affect the normal use of the clip applier, and the number ofclips 59 can be adjusted according to usage requirements during actual use. During the operation, a continuous clipping process generally applies threeclips 59 to tissues or blood vessels, so theclip magazine 8 in this embodiment includes three clips 59 .
参考图14，夹仓8的夹腔包括第一腔体9和第二腔体10。以图14中施夹钳的放置方向和角度作为参考，第一腔体9设置于第二腔体10的上方，第一腔体9与第二腔体10连通。第二腔体10的近端与夹仓8的近端端面相交，形成了第二腔体10的进口11，第二腔体10的远端与夹仓8的远端端面相交，形成了第二腔体10的出口12。Referring to FIG. 14 , the clip cavity of theclip magazine 8 includes afirst cavity 9 and asecond cavity 10 . Taking the placement direction and angle of the clip applier in FIG. 14 as a reference, thefirst cavity 9 is disposed above thesecond cavity 10 , and thefirst cavity 9 communicates with thesecond cavity 10 . The proximal end of thesecond cavity 10 intersects the proximal end surface of theclip warehouse 8 to form aninlet 11 of thesecond cavity 10, and the distal end of thesecond cavity 10 intersects the distal end surface of theclip warehouse 8 to form asecond cavity 10. Theoutlet 12 of thesecond cavity 10 .
夹仓8的三个夹子59由上至下依次为夹子60、夹子61和夹子62。夹子60和夹子61设置于第一腔体9，夹子62设置于第二腔体10。夹仓8还包括偏置组件，偏置组件能够向夹子60的上端面施加大致向下的作用力。具体的，偏置组件包括扭簧63和推板66。扭簧63具有第一扭臂64和第二扭臂65。若无外力作用，扭簧63的两个扭臂将处于自然舒展状态。在自然舒展状态，第一扭臂64和第二扭臂65大致沿图14中的上下方向设置。本实施例中，扭簧63的第一扭臂64卡设于夹仓8，扭簧63的第二扭臂65相对于其自然舒展状态旋转了一定角度后作用于夹子60，从而能够对夹子60施加作用力。扭簧63的第二扭臂65与推板66连接。扭簧63通过推板66向夹子60施加作用力，由此能够增加受力面积，使得扭簧63能够更加稳定的作用于夹子60。The threeclips 59 of theclip bin 8 are aclip 60 , aclip 61 and a clip 62 from top to bottom. Theclip 60 and theclip 61 are arranged in thefirst cavity 9 , and the clip 62 is arranged in thesecond cavity 10 .Cartridge 8 also includes a biasing assembly capable of applying a generally downward force to the upper end surface ofclip 60 . Specifically, the bias assembly includes a torsion spring 63 and apush plate 66 . The torsion spring 63 has afirst torsion arm 64 and asecond torsion arm 65 . If there is no external force, the two torsion arms of the torsion spring 63 will be in a naturally stretched state. In the naturally stretched state, thefirst torsion arm 64 and thesecond torsion arm 65 are generally arranged along the up-down direction in FIG. 14 . In this embodiment, thefirst torsion arm 64 of the torsion spring 63 is clamped on theclip 8, and thesecond torsion arm 65 of the torsion spring 63 rotates a certain angle relative to its natural stretch state and then acts on theclip 60, so that the clip can be 60 applied force. Thesecond torsion arm 65 of the torsion spring 63 is connected to thepush plate 66 . The torsion spring 63 applies force to theclip 60 through thepush plate 66 , thereby increasing the force receiving area, so that the torsion spring 63 can act on theclip 60 more stably.
参考图15，初始状态下（即送夹杆24进行送夹动作前），送夹杆24的远端从第二腔体10的进口11处伸入至第二腔体10内。由此，当夹仓8相对杆身组件1转动时，在夹仓8的作用下，送夹杆24也随之产生弯曲，以适应夹仓8的转动。送夹杆24是具有弹性的材质制成，材质包括但不限于金属，使其为柔性的送夹杆24，能够弯曲变形，以适应于夹仓8的转动。Referring to FIG. 15 , in the initial state (that is, before the clampingrod 24 performs the clamping action), the distal end of the clampingrod 24 extends into thesecond cavity 10 from theentrance 11 of thesecond cavity 10 . Therefore, when theclip bin 8 rotates relative to theshaft assembly 1 , under the action of theclip bin 8 , theclamp feeding rod 24 is also bent accordingly, so as to adapt to the rotation of theclip bin 8 . The clampingrod 24 is made of elastic material, including but not limited to metal, so that the clampingrod 24 is flexible and can be bent and deformed to adapt to the rotation of the clampingchamber 8 .
参考图16，当送夹杆24向远端（即向前）移动而将夹子62抵推至钳口组件6且送夹杆24移动至复位之前，送夹杆24与夹子61的底部相抵接，使得夹子60和夹子61均不会向下移动。Referring to FIG. 16 , when theclip feed rod 24 moves to the far end (i.e. forward) to push the clip 62 to thejaw assembly 6 and before theclip feed rod 24 moves to reset, theclip feed rod 24 abuts against the bottom of theclip 61 , so that neither theclip 60 nor theclip 61 can move downward.
当送夹杆24向远端（即向前）移动而将夹子62抵推至钳口组件6，且送夹杆24移动至复位后，在偏置组件的作用下，夹子60和夹子61均向下移动，使得夹子61进入至第二腔体10内，以能够继续进行施夹。夹子60和夹子61在偏置组件的作用下向下移动是以图14-16中施夹钳的放置角度和方向作为参考的。当施夹钳的放置方向和角度发生改变时，夹子60和夹子61仍然能够在偏置组件的作用下向第二腔体10内移动。When theclip feeding rod 24 moves to the far end (ie forward) to push the clip 62 to thejaw assembly 6, and after theclip feeding rod 24 moves to reset, under the action of the biasing assembly, both theclip 60 and theclip 61 Moving downwards, theclip 61 enters into thesecond cavity 10 to continue clipping. The downward movement of theclip 60 and theclip 61 under the action of the bias assembly is based on the placement angle and direction of the clip applier in FIGS. 14-16 as a reference. When the placement direction and angle of the clip applier are changed, theclip 60 and theclip 61 can still move into thesecond cavity 10 under the action of the biasing assembly.
如上文所述，传动机构处于第一状态时，切换机构与送夹驱动机构结合，施夹钳执行送夹动作。用户操纵致动件13，使得第一离合件46抵推第一驱动件22向远端移动，从而送夹杆24向远端移动，送夹杆24从第二腔体10内的夹子59的近端端部抵推夹子59而将夹子59推至钳口组件6，此时为送夹完成时刻，夹子59所处的位置为准备位置。准备位置即夹子59被钳口组件6稳定的夹持和能被有效地压缩至闭合状态的位置，如果夹子59在钳口组件6内滑动使其没有位于准备位置，在施夹过程中会造成对夹子59的支撑性不足而使夹子59自动弹出或使夹子59扭转，导致压缩的效果不佳。As mentioned above, when the transmission mechanism is in the first state, the switching mechanism is combined with the clip feeding driving mechanism, and the clip applier performs the clip feeding action. The user manipulates the actuatingmember 13 so that the firstclutch member 46 pushes the first drivingmember 22 to move to the distal end, so that the clampingrod 24 moves to the distal end, and the clampingrod 24 moves from theclip 59 in thesecond cavity 10 The proximal end pushes against theclip 59 and pushes theclip 59 to thejaw assembly 6. At this time, the clip feeding is completed, and the position of theclip 59 is the ready position. The ready position is the position where theclip 59 is stably clamped by thejaw assembly 6 and can be effectively compressed to a closed state. If theclip 59 slides in thejaw assembly 6 so that it is not in the ready position, it will cause Insufficient support for theclip 59 causes theclip 59 to pop out automatically or twist theclip 59, resulting in poor compression effect.
用户操纵致动件13使得送夹杆24将夹子62推至钳口组件6中时，在送夹杆24推动夹子62进入准备位置前，若用户不慎松开致动件13，则在第一复位件的作用下，切换机构后退复位，导致送夹杆24后退复位。由于夹子62已经被向前推出了一定行程，当送夹杆24后退复位后，夹子60和夹子61会向下移动至第二腔体10，用户再次操纵致动件13驱动送夹杆24向远端移动时，送夹杆24同时推动夹子61和夹子62，由于夹子61对夹子62产生了送夹干涉，导致无法正常送夹。因此，本发明中，在送夹杆24推动夹子62进入准备位置前，送夹杆24始终保持在夹子62的近端抵持夹子62，并支撑夹子61和夹子60，即使用户不慎松开致动件13，送夹杆24也不会后退，夹子61和夹子60不会提前进入第二腔体10。When the user manipulates theactuator 13 so that theclamp bar 24 pushes the clip 62 into thejaw assembly 6, before theclamp bar 24 pushes the clip 62 into the ready position, if the user accidentally releases theactuator 13, the Under the action of a reset member, the switching mechanism retreats and resets, causing the clampingrod 24 to retreat and reset. Since the clip 62 has been pushed forward for a certain stroke, when theclip feed rod 24 retreats and resets, theclip 60 and theclip 61 will move down to thesecond cavity 10, and the user manipulates theactuator 13 again to drive theclip feed rod 24 to When the distal end moves, theclip feeding rod 24 simultaneously pushes theclip 61 and the clip 62, and theclip 61 interferes with the clip feeding to the clip 62, resulting in failure to send the clip normally. Therefore, in the present invention, before theclip feed rod 24 pushes the clip 62 into the ready position, theclip feed rod 24 remains on the near end of the clip 62 against the clip 62, and supports theclip 61 and theclip 60, even if the user accidentally releases the clip 62. Theactuator 13 and theclamp feeding rod 24 will not retreat, and theclip 61 and theclip 60 will not enter thesecond cavity 10 in advance.
如上文所述，传动机构处于第二状态时，切换机构与送夹驱动机构分离，切换机构与钳口驱动机构的抵推部35结合，施夹钳执行钳口闭合动作。用户操纵致动件13，第二离合件抵推第二驱动件向远端移动，使得外管25向远端移动以闭合钳口组件6，从而闭合钳口组件6中的夹子59，此时为施夹完成时刻，位于准备位置的夹子59被施加于组织或血管。As mentioned above, when the transmission mechanism is in the second state, the switching mechanism is separated from the clamp feeding driving mechanism, the switching mechanism is combined with the resistingportion 35 of the jaw driving mechanism, and the clamp applier executes the jaw closing action. The user manipulates theactuator 13, and the second clutch pushes the second driving member to move distally, so that theouter tube 25 moves distally to close thejaw assembly 6, thereby closing theclip 59 in thejaw assembly 6, at this time For clipping completion time, theclip 59 in the ready position is applied to the tissue or blood vessel.
在钳口组件6闭合以闭合夹子59时，夹子59受力闭合的过程会产生向近端移动的趋势，从而导致施夹效果不佳，因此本发明施夹钳，传动机构处于第二状态时，送夹杆24保持在夹子59的近端抵持夹子59，以防止夹子59后退而无法施夹。换言之，传动机构处于第二状态时，切换机构与送夹驱动机构分离，送夹驱动机构不会向近端移动，使得送夹杆24能够继续在夹子59的近端抵持夹子59。当钳口组件6完全闭合时，此时夹子59已经被施加于组织或血管，送夹驱动机构再向近端移动复位。When thejaw assembly 6 is closed to close theclip 59, the process ofclip 59 being forced to close will have a tendency to move proximally, resulting in poor clip application effect. Therefore, when the clip applier of the present invention is in the second state, the transmission mechanism , theclip feeding rod 24 remains on the proximal end of theclip 59 against theclip 59, so as to prevent theclip 59 from receding and cannot apply clips. In other words, when the transmission mechanism is in the second state, the switching mechanism is separated from the clip feeding driving mechanism, and the clip feeding driving mechanism will not move proximally, so that theclip feeding rod 24 can continue to abut theclip 59 at the proximal end of theclip 59 . When thejaw assembly 6 is fully closed, theclip 59 has been applied to the tissue or blood vessel at this time, and the clip feeding driving mechanism moves proximally and resets.
为了达到上述效果，本实施例施夹钳还包括止退机构。止退机构容纳于头部壳体内。In order to achieve the above effects, the clip applier in this embodiment further includes a backstop mechanism. The anti-retraction mechanism is housed in the head shell.
如上文所述，致动件13可活动地连接于壳体。拉动致动件13，使得致动件13相对壳体而运动，致动件13运动可处于三个特殊的位置：打开位置、中间位置和闭合位置。具体的，参考图18，初始时刻，用户未操作致动件13，致动件13所处的位置为打开位置。参考图20，用户操作致动件13，送夹完成时刻，致动件13所处的位置为中间位置，致动件13位于中间位置时，夹子59处于准备位置。参考图21，用户操作致动件13，施夹完成时刻，致动件13所处的位置为闭合位置。As mentioned above, theactuator 13 is movably connected to the housing. Pulling the actuatingmember 13 makes the actuatingmember 13 move relative to the housing, and the actuatingmember 13 can move to three special positions: an open position, an intermediate position and a closed position. Specifically, referring to FIG. 18 , at the initial moment, the user does not operate theactuator 13, and theactuator 13 is in the open position. Referring to FIG. 20 , the user operates the actuatingmember 13. When the clip feeding is completed, the actuatingmember 13 is in the middle position. When the actuatingmember 13 is in the middle position, theclip 59 is in the ready position. Referring to FIG. 21 , the user operates theactuator 13 , and when the clip application is completed, theactuator 13 is in the closed position.
具体的，致动件13从打开位置运动到中间位置前，切换机构与送夹驱动机构结合，施夹钳执行送夹动作。运动到中间位置前”是指致动件13还未运动到中间位置。致动件13位于中间位置时，切换机构与送夹驱动机构分离，同时切换机构与钳口驱动机构的抵推部35结合。致动件13从中间位置运动到闭合位置，施夹钳执行钳口闭合动作。Specifically, before the actuator 13 moves from the open position to the middle position, the switching mechanism is combined with the clip feeding drive mechanism, and the clip applier performs the clip feeding action. "Before moving to the intermediate position" means that theactuator 13 has not moved to the intermediate position. When theactuator 13 is in the intermediate position, the switching mechanism is separated from the clip feeding drive mechanism, and the switching mechanism and the pushingpart 35 of the jaw driving mechanism are separated. Combination. The actuatingmember 13 moves from the middle position to the closed position, and the clip applier executes the action of closing the jaws.
参考图6、9，止退机构包括导向枢转件67。参考图17A-17B，导向枢转件67具有第一止退部68、第二止退部71和第三止退部72。第二止退部71位于第一止退部68与第三止退部72之间。具体的，第一止退部68位于第二止退部71的近侧，第三止退部72位于第二止退部71的远侧。Referring to FIGS. 6 and 9 , the anti-retraction mechanism includes a guidingpivot 67 . Referring to FIGS. 17A-17B , the guidingpivot member 67 has afirst backstopping portion 68 , asecond backstopping portion 71 and athird backstopping portion 72 . Thesecond backstop portion 71 is located between thefirst backstop portion 68 and thethird backstop portion 72 . Specifically, the firstanti-retraction part 68 is located near the secondanti-retraction part 71 , and the thirdanti-retraction part 72 is located at the far side of the secondanti-retraction part 71 .
如上文所述，送夹驱动机构包括第一驱动件22和送夹杆24，致动件13能驱动第一驱动件22运动以使送夹杆24推动夹子59进入钳口组件6。As mentioned above, the clip feeding driving mechanism includes the first drivingmember 22 and theclip feeding rod 24 , and theactuator 13 can drive the first drivingmember 22 to move so that theclip feeding rod 24 pushes theclip 59 into thejaw assembly 6 .
响应于致动件13自打开位置运动到中间位置前，第一止退部68和第二止退部71依次位于第一驱动件22的近端以阻止第一驱动件22后退。夹子59进入准备位置前，若用户不慎松开致动件13，第一驱动件22会与第一止退部68或者第二止退部71相抵接，使得第一驱动件22不会后退，送夹杆24始终保持在夹子59的近端抵持夹子59，从而避免送夹失误。In response to the movement of the actuatingmember 13 from the open position to the middle position, thefirst backstop portion 68 and thesecond backstop portion 71 are sequentially located at the proximal end of the first drivingmember 22 to prevent the first drivingmember 22 from retreating. Before theclip 59 enters the ready position, if the user accidentally releases theactuator 13, thefirst driver 22 will abut against thefirst backstop 68 or thesecond backstop 71, so that thefirst driver 22 will not retreat , Theclip feeding rod 24 is always kept at the proximal end of theclip 59 against theclip 59, thereby avoiding clip feeding errors.
响应于致动件13自中间位置运动到闭合位置前，第三止退部72位于第一驱动件22的近端并与第一驱动件22保持抵接状态以阻止第一驱动件22后退。“运动到闭合位置前”是指致动件13还未运动到闭合位置。在钳口组件6闭合前，第一驱动件22不会后退，送夹杆24保持在夹子59的近端抵持夹子59以防止夹子59后退，从而保证施夹的稳定性。In response to the movement of the actuator 13 from the middle position to the closed position, thethird stop portion 72 is located at the proximal end of the first drivingmember 22 and maintains an abutting state with the first drivingmember 22 to prevent the first drivingmember 22 from retreating. "Before moving to the closed position" means that theactuator 13 has not yet moved to the closed position. Before thejaw assembly 6 is closed, the first drivingmember 22 will not retreat, and theclip feeding rod 24 remains on the proximal end of theclip 59 against theclip 59 to prevent theclip 59 from retreating, thereby ensuring the stability of clip application.
致动件13位于闭合位置时，第一驱动件22与第三止退部72分离。夹子59已经被施加于组织或血管后，第三止退部72与第一驱动件22分离，第一驱动件22向近端移动复位，送夹杆24向近端移动复位。When the actuatingmember 13 is in the closed position, the first drivingmember 22 is separated from thethird backstop portion 72 . After theclip 59 has been applied to the tissue or blood vessel, thethird stopper 72 is separated from the first drivingmember 22 , the first drivingmember 22 moves proximally to reset, and theclip feeding rod 24 moves proximally to reset.
由于切换机构的基座36具有通孔135，第一驱动件22容置于通孔135中，通孔135贯通基座36的远端端面与近端端面，因此，当第一驱动件22向近端移动时，第一驱动件22能够从通孔135穿出而与第一止退部68、第二止退部71、第三止退部72中的一个抵接。Because thebase 36 of the switching mechanism has a throughhole 135, the first drivingmember 22 is accommodated in the throughhole 135, and the throughhole 135 runs through the distal end surface and the proximal end surface of thebase 36, therefore, when the first drivingmember 22 When the proximal end moves, the first drivingmember 22 can pass through the throughhole 135 and abut against one of thefirst backstopping portion 68 , thesecond backstopping portion 71 and thethird backstopping portion 72 .
第一驱动件22具有初位置、第一位置、第二位置和第三位置。初位置即用户未操纵致动件13，第一驱动件22未移动时所处的位置。切换机构驱动第一驱动件22从初位置向远端移动依次经过第一位置、第二位置后到达第三位置。致动件13位于打开位置时，第一驱动件22位于初位置。致动件13位于中间位置时，第一驱动件22位于第三位置。致动件13自中间位置运动到闭合位置前，第一驱动件22保持于第三位置。The first drivingmember 22 has an initial position, a first position, a second position and a third position. The initial position is the position where the user does not operate the actuatingmember 13 and the first drivingmember 22 does not move. The switching mechanism drives the first drivingmember 22 to move from the initial position to the distal end, pass through the first position, the second position and then reach the third position. When the actuatingmember 13 is in the open position, the first drivingmember 22 is in the initial position. When the actuatingmember 13 is at the middle position, the first drivingmember 22 is at the third position. Before theactuator 13 moves from the middle position to the closed position, the first drivingmember 22 remains at the third position.
参考图19，第一驱动件22自初位置运动至第一位置时，第一驱动件22位于第一止退部68的远端。具体的，第一驱动件22从初位置向远端移动至第一位置时，第一驱动件22恰好到达第一止退部68的远端。此时，若第一驱动件22向近端移动，则第一驱动件22的近端会与第一止退部68相抵接而无法继续后退。Referring to FIG. 19 , when the first drivingmember 22 moves from the initial position to the first position, the first drivingmember 22 is located at the distal end of thefirst backstop portion 68 . Specifically, when the first drivingmember 22 moves from the initial position to the distal end to the first position, the first drivingmember 22 just reaches the distal end of thefirst backstop portion 68 . At this time, if the first drivingmember 22 moves toward the proximal end, the proximal end of the first drivingmember 22 will abut against thefirst backstop portion 68 and cannot continue to move backward.
需要说明的是，向近端移动是指沿朝向施夹钳近端的方向移动，向远端移动是指沿朝向施夹钳远端的方向移动，这是为了叙述方便。同时，其它内容中的近端和远端也是施夹钳的近端和远端。It should be noted that moving proximally refers to moving toward the proximal end of the clip applier, and moving distally refers to moving toward the distal end of the clip applier, which is for convenience of description. Meanwhile, the near end and the far end in other contents are also the near end and the far end of the clip applier.
第一驱动件22自第一位置运动至第二位置前，第一驱动件22位于第一止退部68与第二止退部71之间。具体的，第一驱动件22从第一位置向远端移动至第二位置前的过程，第一驱动件22在第一止退部68与第二止退部71之间向远端移动。此移动过程中，若第一驱动件22向近端移动，则第一驱动件22的近端会与第一止退部68相抵接而无法继续后退。Before the first drivingmember 22 moves from the first position to the second position, the first drivingmember 22 is located between thefirst backstop portion 68 and thesecond backstop portion 71 . Specifically, during the process of the first drivingmember 22 moving distally from the first position to before the second position, the first drivingmember 22 moves distally between thefirst backstop portion 68 and thesecond backstop portion 71 . During this movement, if the first drivingmember 22 moves toward the proximal end, the proximal end of the first drivingmember 22 will abut against thefirst backstop portion 68 and cannot continue to move backward.
第一驱动件22自第一位置运动至第二位置时，第一驱动件22位于第二止退部71的远端。具体的，第一驱动件22位于第二位置时，第一驱动件22恰好到达第二止退部71的远端。此时，若第一驱动件22向近端移动，则第一驱动件22的近端会与第二止退部71相抵接而无法继续后退。When the first drivingmember 22 moves from the first position to the second position, the first drivingmember 22 is located at the distal end of thesecond backstop portion 71 . Specifically, when the first drivingmember 22 is at the second position, the first drivingmember 22 just reaches the distal end of thesecond backstop portion 71 . At this time, if the first drivingmember 22 moves toward the proximal end, the proximal end of the first drivingmember 22 will abut against thesecond backstop portion 71 and cannot continue to move backward.
第一驱动件22自第二位置运动至第三位置前，第一驱动件22位于第二止退部71与第三止退部72之间。具体的，第一驱动件22从第二位置移动至第三位置前的过程，第一驱动件22在第二止退部71与第三止退部72之间向远端移动。此移动过程中，若第一驱动件22向近端移动，则第一驱动件22的近端会与第二止退部71相抵接而无法继续后退。Before the first drivingmember 22 moves from the second position to the third position, the first drivingmember 22 is located between thesecond backstop portion 71 and thethird backstop portion 72 . Specifically, in the process before the first drivingmember 22 moves from the second position to the third position, the first drivingmember 22 moves distally between thesecond stop portion 71 and thethird stop portion 72 . During this movement, if the first drivingmember 22 moves toward the proximal end, the proximal end of the first drivingmember 22 will abut against thesecond backstop portion 71 and cannot continue to move backward.
参考图20，第一驱动件22自第二位置运动至第三位置时，第一驱动件22位于第三止退部72的远端。具体的，第一驱动件22位于第三位置时，第一驱动件22恰好运动至第三止退部72的远端，第三止退部72与第一驱动件22的近端抵接，此时，若第一驱动件22向近端移动，则第一驱动件22的近端会与第三止退部72相抵接而无法继续后退。Referring to FIG. 20 , when the first drivingmember 22 moves from the second position to the third position, the first drivingmember 22 is located at the distal end of thethird backstop portion 72 . Specifically, when the first drivingmember 22 is in the third position, the first drivingmember 22 just moves to the distal end of thethird backstop portion 72, and thethird backstop portion 72 abuts against the proximal end of the first drivingmember 22, At this time, if the first drivingmember 22 moves toward the proximal end, the proximal end of the first drivingmember 22 will abut against thethird backstop portion 72 and cannot continue to move backward.
第一驱动件22位于第三位置时，致动件13处于中间位置，继续操纵致动件13，使得致动件13从中间位置移动至闭合位置前，第三止退部72始终与第一驱动件22的近端抵接以阻止第一驱动件22后退。When the first drivingmember 22 is in the third position, the actuatingmember 13 is in the middle position, and the actuatingmember 13 is continuously manipulated so that thethird backstop portion 72 is always in contact with the first stop before the actuatingmember 13 moves from the middle position to the closed position. The proximal end of the drivingmember 22 abuts to prevent the first drivingmember 22 from retreating.
参考图21，致动件13从中间位置移动至闭合位置时，第三止退部72与第一驱动件22脱离。Referring to FIG. 21 , when the actuatingmember 13 moves from the intermediate position to the closed position, thethird backstop portion 72 is disengaged from the first drivingmember 22 .
如上文所述，钳口组件6限定第一纵长轴线7。参考图15，与钳口组件6沿第一纵长轴线7对齐的夹子59为第一夹子，即夹子62为第一夹子。夹子62位于夹仓8的第二腔体10内。第一驱动件22向远端移动以驱动送夹杆24推动夹子62运动。第一驱动件22移动至第二位置时，夹子62运动至出夹仓8。第一驱动件22移动至第三位置时，夹子62进入准备位置。As noted above, thejaw assembly 6 defines a first elongate axis 7 . Referring to FIG. 15 , theclip 59 aligned with thejaw assembly 6 along the first longitudinal axis 7 is the first clip, ie, the clip 62 is the first clip. The clip 62 is located within thesecond cavity 10 of thecartridge 8 . The first drivingmember 22 moves to the distal end to drive theclip feeding rod 24 to push the clip 62 to move. When the first drivingmember 22 moves to the second position, the clip 62 moves out of theclip chamber 8 . When the first drivingmember 22 moves to the third position, the clip 62 enters the ready position.
参考图19，第一驱动件22驱动送夹杆24推动夹子62运动至完全出夹仓8前，第一驱动件22位于第一止退部68与第二止退部71之间以阻止第一驱动件22后退。送夹杆24驱动夹子62运动至完全出夹仓8前，此时，夹子61的远端与夹子62的上表面抵接，夹子61的近端与送夹杆24的上部抵接。若此时送夹杆24后退复位，在偏置组件的作用下，夹子61的近端会掉落至第二腔体10内，当送夹杆24再次向前移动时，送夹杆24的远端会抵推夹子61而无法继续抵推夹子62，由于夹子61的干涉，导致送夹杆24无法将夹子62送至准备位置，由此出现送夹故障。而本实施例送夹杆24在夹子62运动至完全出夹仓8前不会后退，从而不会出现送夹故障。Referring to FIG. 19 , the first drivingmember 22 drives theclamp feeding rod 24 to push the clip 62 to move out of theclip chamber 8 completely. The first drivingmember 22 is located between thefirst backstop portion 68 and thesecond backstop portion 71 to prevent theA driver 22 moves backward. Theclamp bar 24 drives the clip 62 to move out of theclip chamber 8 completely. At this time, the far end of theclip 61 abuts against the upper surface of the clip 62 , and the proximal end of theclip 61 abuts against the top of theclip bar 24 . If the clampingrod 24 retreats and resets at this time, under the action of the bias assembly, the proximal end of theclip 61 will drop into thesecond cavity 10, and when the clampingrod 24 moves forward again, the clampingrod 24 will The far end will push against theclip 61 and cannot continue to push against the clip 62. Due to the interference of theclip 61, theclip feeding rod 24 cannot send the clip 62 to the ready position, thus a clip feeding failure occurs. However, in this embodiment, the clampingrod 24 will not retreat before the clip 62 moves out of the clampingchamber 8 completely, so that the clamping failure will not occur.
第一驱动件22驱动送夹杆24推动夹子62运动至完全出夹仓8后且到达准备位置前，第一驱动件22位于第二止退部71与第三止退部72之间以阻止第一驱动件22后退。当送夹杆24驱动夹子62运动至完全出夹仓8后且到达准备位置前，此时，夹子61与送夹杆24的上部抵接，若此时送夹杆24后退复位，在偏置组件的作用下，夹子61完全掉落至第二腔体10内，当送夹杆24再次向前移动时，送夹杆24的远端会抵推夹子61而无法继续抵推夹子62，而出现送夹故障。而本实施例送夹杆24在夹子62运动至到达准备位置前不会后退，从而不会出现送夹故障。The first drivingmember 22 drives theclamp feeding rod 24 to push the clip 62 to move out of theclip chamber 8 completely and before reaching the ready position. The first drivingmember 22 is located between thesecond backstop portion 71 and thethird backstop portion 72 to prevent The first drivingmember 22 retreats. When theclip bar 24 drives the clip 62 to move completely out of theclip bin 8 and before reaching the ready position, at this time, theclip 61 abuts against the upper part of theclip bar 24. If theclip bar 24 retreats and resets at this time, the bias Under the action of the assembly, theclip 61 completely falls into thesecond cavity 10. When theclip feed rod 24 moves forward again, the far end of theclip feed rod 24 will push against theclip 61 and cannot continue to push against the clip 62. A clip feed failure has occurred. However, in this embodiment, theclamp feeding rod 24 will not retreat before the clip 62 moves to the ready position, so that the clamp feeding failure will not occur.
参考图20，第一驱动件22驱动送夹杆24推动夹子62运动至到达准备位置时，第一驱动件22运动至第三止退部72的远端并与第三止退部72的远端抵接以阻止第一驱动件22后退。当送夹杆24驱动夹子62运动至准备位置时，若送夹杆24后退复位。在钳口组件6闭合的过程中，夹子62受力会发生后退，导致无法施夹。而本实施例送夹杆24在钳口组件6闭合前和闭合过程中不会后退，会抵接夹子62防止其后退，从而能够保证正常施夹。Referring to FIG. 20 , when the first drivingmember 22 drives theclamp feed rod 24 to push the clamp 62 to the ready position, the first drivingmember 22 moves to the far end of thethird backstop portion 72 and is connected to the far end of thethird backstop portion 72 . end abutting to prevent the first drivingmember 22 from retreating. When theclamp rod 24 drives the clip 62 to move to the ready position, if theclamp rod 24 retreats and resets. During the closing process of thejaw assembly 6, the clip 62 will retreat under force, resulting in failure to apply clips. In this embodiment, theclamp feeding rod 24 will not retreat before and during the closing of thejaw assembly 6, but will abut against the clip 62 to prevent it from retreating, thereby ensuring normal clamping.
本实施例通过设置第一止退部68和第二止退部71，使得送夹杆24在将夹子送至准备位置前不会后退复位，避免了送夹故障的发生，通过设置第三止退部72，避免位于钳口组件6内的夹子62后退而造成无法夹持血管或者组织的问题，保证了顺利施夹，提高了手术的可靠性与安全性。In this embodiment, thefirst backstop 68 and thesecond backstop 71 are set so that theclamp feed rod 24 will not retreat and reset before the clip is sent to the ready position, thereby avoiding the occurrence of clip feed failures. By setting the third stop The recedingpart 72 avoids the problem that the clip 62 in thejaw assembly 6 cannot clamp blood vessels or tissues due to receding, ensures smooth clipping, and improves the reliability and safety of the operation.
参考图17，第一止退部68的近端具有第一导向面69，第一止退部68的远端具有第一止退面70，第一驱动件22能够自第一导向面69运动至第一止退部68与第二止退部71之间，第一止退面70能在第一驱动件22后退时与第一驱动件22抵接以阻止其后退。Referring to FIG. 17 , the proximal end of thefirst stop portion 68 has afirst guide surface 69 , the distal end of thefirst stop portion 68 has afirst stop surface 70 , and the first drivingmember 22 can move from thefirst guide surface 69 Between thefirst anti-retraction portion 68 and thesecond anti-retraction portion 71 , thefirst anti-retraction surface 70 can abut against the first drivingmember 22 when the first drivingmember 22 retreats to prevent it from retreating.
第三止退部72位于第二止退部71的远侧，第二止退部71的近端具有第二导向面，第二止退部71的远端具有第二止退面，第一驱动件22能够自第二导向面运动至第二止退部71与第三止退部72之间，第二止退面能在第一驱动件22后退时与第一驱动件22抵接以阻止其后退。Thethird anti-retraction portion 72 is located on the far side of thesecond anti-retraction portion 71, the proximal end of thesecond anti-retraction portion 71 has a second guide surface, and the distal end of thesecond anti-retraction portion 71 has a second anti-retraction surface. The drivingmember 22 can move from the second guide surface to between thesecond stop portion 71 and thethird stop portion 72, and the second stop surface can abut against thefirst drive member 22 when thefirst drive member 22 retreats so that prevent it from retreating.
第三止退部72的近端具有第三导向面，第三止退部72的远端具有第三止退面，第一驱动件22能够自第三导向面运动至第三止退部72的远端，第三止退面能在第一驱动件22后退时与第一驱动件22抵接以阻止其后退。The proximal end of thethird backstop portion 72 has a third guide surface, and the distal end of thethird backstop portion 72 has a third backstop surface, and the first drivingmember 22 can move from the third guide surface to thethird backstop portion 72 At the far end, the third anti-retraction surface can abut against the first drivingmember 22 when the first drivingmember 22 retreats to prevent it from retreating.
具体的，参考图17，第一导向面69为弧形面，第一导向面69与第一驱动件22的运动方向呈钝角夹角，从而第一驱动件22能够沿第一导向面69移动而进入第一止退部68的远端。第一止退面70与第一驱动件22的运动方向呈锐角或直角，从而第一驱动件22不能沿第一止退面70移动至第一止退部68的近端，而是能够与第一止退面70相抵接。Specifically, referring to FIG. 17, thefirst guide surface 69 is an arc surface, and thefirst guide surface 69 forms an obtuse angle with the moving direction of the first drivingmember 22, so that the first drivingmember 22 can move along thefirst guide surface 69. And enter the far end of the firstretreat stop portion 68 . Thefirst backstop surface 70 forms an acute or right angle with the moving direction of the first drivingmember 22, so that thefirst driver 22 cannot move along thefirst backstop surface 70 to the proximal end of thefirst backstop portion 68, but can Thefirst anti-retraction surface 70 abuts against each other.
第一导向面69、第二导向面和第三导向面的结构大致相同，与第一驱动件22的配合方式也大致相同，对于第二导向面和第三导向面的结构以及与第一驱动件22的配合方式不再赘述。第一止退面70、第二止退面和第三止退面的结构大致相同，与第一驱动件22的配合方式也大致相同，对于第二止退面和第三止退面的结构以及与第一驱动件22的配合方式也不再赘述。The structures of thefirst guide surface 69, the second guide surface and the third guide surface are substantially the same, and the cooperation with the first drivingmember 22 is also substantially the same. The cooperation mode ofpiece 22 is no longer described in detail. The structures of thefirst anti-retraction surface 70, the second anti-retraction surface and the third anti-retraction surface are approximately the same, and the cooperation with the first drivingmember 22 is also approximately the same. And the way of cooperating with the first drivingmember 22 will not be described in detail.
当第一驱动件22移动至第一止退部68处时，第一驱动件22对第一止退部68产生作用力，在偏置弹簧80（具体见下文）的作用下，导向枢转件67下移一定距离，此时导向件81在导引通道82中也下移一定距离，使得第一止退部68下移而使第一驱动件22能够通过第一止退部68，当第一驱动件22通过第一止退部68后并运动至第一止退部68的远端，在偏置弹簧80的作用下，导向枢转件67上移，使得第一止退部68上移至第一驱动件22的运动轨迹上，以使得第一止退部68能够与第一驱动件22抵接。第一止退部68、第二止退部71、第三止退部72与第一驱动件22的配合方式大致相同，此处不再赘述。When thefirst driver 22 moves to thefirst backstop 68, thefirst driver 22 exerts a force on thefirst backstop 68, and the guide pivots under the action of the bias spring 80 (see below for details).Part 67 moves down a certain distance, and at this time, theguide part 81 also moves down a certain distance in theguide channel 82, so that thefirst backstop 68 moves down so that the first drivingpart 22 can pass through thefirst backstop 68, when After the first drivingmember 22 passes through thefirst backstop portion 68 and moves to the distal end of thefirst backstop portion 68 , under the action of thebias spring 80 , the guidingpivot member 67 moves upward, so that thefirst backstop portion 68 Move up to the movement track of the first drivingmember 22 , so that thefirst backstop portion 68 can abut against the first drivingmember 22 . Thefirst backstop portion 68 , thesecond backstop portion 71 , thethird backstop portion 72 cooperate with the first drivingmember 22 in substantially the same manner, and will not be repeated here.
参考图17A-17B、22，本实施例导向枢转件67还具有枢接部73、导向部74和受力部75。枢接部73设置于导向部74与受力部75之间。枢接部73与壳体通过第一销轴136枢转连接，使得导向枢转件67能够绕第一销轴136相对壳体转动。第一止退部68、第二止退部71和第三止退部72均设置于枢接部73的上方。需要说明的是，由于导向枢转件67能够绕第一销轴136相对壳体转动，因此“导向枢转件67下移”和“导向件81下移”是指随着导向枢转件67的逆时针转动，使得导向枢转件67的、位于枢接部73远侧的、包括各个止退部在内的部分相对下移，导向件81也相对下移。可以替代的是，可以将导向枢转件67设置为具有随着致动件13的转动而整体上下移动的结构。Referring to FIGS. 17A-17B and 22 , the guiding and pivotingmember 67 of this embodiment also has a pivotingportion 73 , a guiding portion 74 and aforce receiving portion 75 . Thepivot portion 73 is disposed between the guide portion 74 and theforce receiving portion 75 . The pivotingportion 73 is pivotally connected to the housing through thefirst pin shaft 136 , so that the guidingpivot member 67 can rotate around thefirst pin shaft 136 relative to the housing. Thefirst backstop portion 68 , thesecond backstop portion 71 and thethird backstop portion 72 are all disposed above thepivotal portion 73 . It should be noted that since theguide pivot 67 can rotate around thefirst pin shaft 136 relative to the housing, "theguide pivot 67 moves down" and "theguide 81 moves down" means that theguide pivot 67 Rotate counterclockwise, so that the part of theguide pivot member 67, which is located on the far side of the pivot joint 73, including each backstop portion, moves downward relatively, and theguide member 81 also moves downward relatively. Alternatively, theguide pivot member 67 may be configured to have a structure that moves up and down as a whole with the rotation of theactuator 13 .
止退机构还包括偏置弹簧80。偏置弹簧80的一端抵接受力部75，另一端抵接壳体。偏置弹簧80处于压缩状态以向受力部75施加力，使得导向枢转件67有绕枢接部73的第一销轴136顺时针旋转的趋势。The backstop mechanism also includes abias spring 80 . One end of thebias spring 80 abuts against the receivingportion 75 and the other end abuts against the housing. Thebias spring 80 is in a compressed state to apply a force to the force-receivingportion 75 , so that theguide pivot member 67 has a tendency to rotate clockwise around thefirst pin 136 of thepivot portion 73 .
具体的，参考图17 A-17B，导向枢转件67包括从枢接部73向近端延伸出的第一转臂76，以及从枢接部73向远端延伸出的第二转臂77。第一转臂76的末端为受力部75，第二转臂77的末端为导向部74。第一转臂76和第二转臂77以枢接部73的第一销轴136为支点形成杠杆，偏置弹簧80和导向部74位于杠杆的两端，偏置弹簧80处于压缩状态时，偏置弹簧80施加给受力部75一个推力，使得导向枢转件67有顺时针旋转的趋势，即，第一止退部68、第二止退部71、第三止退部72和导向部74也有顺时针旋转的趋势。Specifically, referring to FIGS. 17A-17B , the guidingpivot member 67 includes afirst pivoting arm 76 extending proximally from the pivotingportion 73 , and a second pivoting arm 77 extending distally from the pivotingportion 73 . The end of the firstrotating arm 76 is theforce receiving portion 75 , and the end of the second rotating arm 77 is the guiding portion 74 . Thefirst pivoting arm 76 and the second pivoting arm 77 take thefirst pin shaft 136 of the pivot joint 73 as a fulcrum to form a lever, and thebias spring 80 and the guide portion 74 are located at both ends of the lever. When thebias spring 80 is in a compressed state, Thebias spring 80 applies a thrust to theforce receiving portion 75, so that theguide pivot member 67 has a tendency to rotate clockwise, that is, thefirst backstop portion 68, thesecond backstop portion 71, thethird backstop portion 72 and the guide Section 74 also has a tendency to rotate clockwise.
再参考图17 A-17B，导向枢转件67还包括从枢接部73倾斜向上延伸出的第三转臂78，第三转臂78与第一转臂76呈钝角夹角，第三转臂78的末端为第一止退部68，从第一止退部68向远端延伸出第二止退部71，从第二止退部71向远端延伸出第三止退部72。在第一转臂76与第三转臂78之间设置有加强筋79，使得导向枢转件67的结构更加牢固稳定。17 A-17B again, theguide pivot member 67 also includes athird arm 78 extending obliquely upward from thepivot portion 73, thethird arm 78 forms an obtuse angle with thefirst arm 76, and thethird arm 78 forms an obtuse angle with thefirst arm 76. The end of thearm 78 is afirst backstop portion 68 , asecond backstop portion 71 extends distally from thefirst backstop portion 68 , and athird backstop portion 72 extends distally from thesecond backstop portion 71 . A reinforcingrib 79 is provided between the firstrotating arm 76 and the thirdrotating arm 78 , so that the structure of the guidingpivot member 67 is firmer and more stable.
参考图8、18-21，致动件13包括致动件主体、设置于致动件主体一端的用户操作的握持部14、和设置于致动件主体另一端的推爪15，推爪15抵接并推动切换机构的基座36，使得送夹驱动机构或钳口驱动机构运动。致动件主体上设置有与壳体枢转连接的枢转端16，致动件13能够绕枢转端16转动。致动件13还具有导引通道82。导引通道82位于致动件主体，且位于枢转端16和推爪15之间。由此，导引通道82设置于致动件13，不需要设计额外的结构来设置导引通道82，使得整体结构紧凑。With reference to Fig. 8,18-21,actuator 13 comprises actuator main body, the user-operatedgrip portion 14 that is arranged on one end of actuator main body, and thepush claw 15 that is arranged on the other end of actuator main body, pushclaw 15 abuts and pushes thebase 36 of the switching mechanism, so that the clamping driving mechanism or the jaw driving mechanism moves. The main body of the actuator is provided with apivot end 16 which is pivotally connected with the housing, and theactuator 13 can rotate around thepivot end 16 . Theactuator 13 also has aguide channel 82 . Aguide channel 82 is located in the actuator body, between thepivot end 16 and thepush dog 15 . Therefore, theguide passage 82 is disposed on theactuator 13 , and no additional structure is needed to arrange theguide passage 82 , so that the overall structure is compact.
参考图18-21，本实施例止退机构还包括导向件81，导向件81设置于导向枢转件67的导向部74。至少部分导向件81容置于导引通道82。致动件13绕其枢转端16转动时，导引通道82随之转动，带动导向件81在偏置弹簧80作用下绕枢第一销轴136运动。Referring to FIGS. 18-21 , the anti-retraction mechanism in this embodiment further includes aguide piece 81 , and theguide piece 81 is arranged on the guide portion 74 of theguide pivot piece 67 . At least part of theguide piece 81 is accommodated in theguide channel 82 . When the actuatingmember 13 rotates around itspivot end 16 , the guidingchannel 82 rotates accordingly, driving the guidingmember 81 to move around thefirst pivot pin 136 under the action of the biasingspring 80 .
参考图23，导引通道82包括起点89、第一止退点90、第二止退点91、第三止退点92和终点93。用户操作致动件13自打开位置向闭合位置移动的过程中，致动件13运动，导引通道82与导向件81之间相对运动，导向件81能够随致动件13的运动在导引通道82中从起点89依次运动至第一止退点90、第二止退点91、第三止退点92和终点93。导引通道82是封闭通道，封闭通道为四周包围的通道，导向件81在导引通道82中向四周运动都被限制住无法离开导引通道82，从而本实施例中导向件81无法脱离致动件13。Referring to FIG. 23 , theguide channel 82 includes astarting point 89 , afirst stop point 90 , asecond stop point 91 , athird stop point 92 and anend point 93 . When the user operates theactuator 13 to move from the open position to the closed position, theactuator 13 moves, and theguide passage 82 and theguide 81 move relative to each other, and theguide 81 can guide along with the movement of theactuator 13. In thechannel 82 , it moves from thestarting point 89 to thefirst stop point 90 , thesecond stop point 91 , thethird stop point 92 and theend point 93 . Theguide passage 82 is a closed passage, and the closed passage is a passage surrounded on all sides. The movement of theguide member 81 in theguide passage 82 is restricted and cannot leave theguide passage 82, so that theguide member 81 cannot be separated from theguide passage 82 in this embodiment. Movingpart 13.
起点89到致动件13枢转端16的距离以及终点93到致动件13枢转端16的距离均小于第一止退点90到致动件13枢转端16的距离，也小于第二止退点91到致动件13枢转端16的距离，同时也小于第三止退点92到致动件13枢转端16的距离。即，第一止退点90、第二止退点91和第三止退点92的位置高于起点89和终点93。由此，当拉动致动件13，致动件13运动而带动导向件81在偏置弹簧80的作用下从起点89顺时针旋转而向上抬起至第一止退点90，致动件13继续移动使得导向件81从第一止退点90依次移动至第二止退点91、第三止退点92，再向下移动至终点93。当导向件81移动至第一止退点90时，导向枢转件67向上翻转，使得第一止退部68、第二止退部71和第三止退部72均上移。The distance from thestarting point 89 to thepivot end 16 of theactuator 13 and the distance from theend point 93 to thepivot end 16 of theactuator 13 are both smaller than the distance from thefirst backstop point 90 to thepivot end 16 of theactuator 13, and also smaller than the distance from thefirst stop point 90 to thepivot end 16 of theactuator 13. The distance from thesecond stop point 91 to thepivot end 16 of theactuator 13 is also smaller than the distance from thethird stop point 92 to thepivot end 16 of theactuator 13 . That is, the positions of thefirst stop point 90 , thesecond stop point 91 and thethird stop point 92 are higher than thestart point 89 and theend point 93 . Thus, when the actuatingmember 13 is pulled, the actuatingmember 13 moves to drive theguide member 81 to rotate clockwise from thestarting point 89 under the action of thebias spring 80 and lift up to thefirst stop point 90, the actuatingmember 13 Continued movement makes theguide member 81 sequentially move from thefirst stop point 90 to thesecond stop point 91 , thethird stop point 92 , and then move down to theend point 93 . When theguide piece 81 moves to thefirst backstop point 90 , theguide pivot piece 67 turns upwards, so that thefirst backstop portion 68 , thesecond backstop portion 71 and thethird backstop portion 72 all move upward.
参考图18，导向件81位于起点89时，第一驱动件22位于初位置。导向件81位于第一止退点90时，第一驱动件22位于第一位置。导向件81位于第二止退点91时，第一驱动件22位于第二位置。导向件81位于第三止退点92时，第一驱动件22位于第三位置。导向件81自第三止退点92运动至终点93前，第一驱动件22保持于第三位置。Referring to FIG. 18 , when theguide member 81 is located at thestarting point 89 , the first drivingmember 22 is located at the initial position. When theguide member 81 is located at thefirst stop point 90, the first drivingmember 22 is located at the first position. When theguide member 81 is located at thesecond stop point 91 , the first drivingmember 22 is located at the second position. When theguide member 81 is located at thethird stop point 92, the first drivingmember 22 is located at the third position. Before theguide member 81 moves from thethird stop point 92 to theend point 93 , the first drivingmember 22 remains at the third position.
参考图19，响应于导向件81自起点89运动至第一止退点90时，导向枢转件67已经向上转动，第一驱动件22恰好运动至第一止退部68的远端，即第一止退部68位于第一驱动件22的近端以阻止第一驱动件22后退。此时若松开致动件13，第一驱动件22会后退一小段距离后与第一止退部68相抵接而停止继续后退，由此能够防止第一驱动件22后退。Referring to FIG. 19 , in response to the movement of theguide member 81 from thestarting point 89 to thefirst backstop point 90, theguide pivot member 67 has rotated upwards, and the first drivingmember 22 just moves to the far end of thefirst backstop portion 68, that is, Thefirst stop portion 68 is located at the proximal end of the first drivingmember 22 to prevent the first drivingmember 22 from retreating. At this time, if the actuatingmember 13 is released, the first drivingmember 22 will retreat for a short distance and then abut against thefirst backstop portion 68 to stop further retreating, thereby preventing the first drivingmember 22 from retreating.
导向件81自第一止退点90运动至第二止退点91前的过程，第一驱动件22在第一止退部68与第二止退部71之间向远端移动。此过程中松开致动件13，第一驱动件22会后退一小段距离后与第一止退部68相抵接而停止继续后退。When theguide member 81 moves from thefirst stop point 90 to before thesecond stop point 91 , the first drivingmember 22 moves distally between thefirst stop portion 68 and thesecond stop portion 71 . During this process, the actuatingmember 13 is released, and the first drivingmember 22 will retreat for a short distance and abut against thefirst backstop portion 68 to stop further retreating.
导向件81运动至第二止退点91时，第一驱动件22位于第二位置，第一驱动件22恰好运动至第二止退部71的远端，即所述第二止退部71位于第一驱动件22的近端以阻止第一驱动件22后退。此时若松开致动件13，第一驱动件22会后退一小段距离后与第二止退部71相抵接而停止继续后退。When theguide member 81 moves to thesecond backstop point 91, thefirst driver 22 is located at the second position, and thefirst driver 22 just moves to the distal end of thesecond backstop portion 71, that is, thesecond backstop part 71 Located at the proximal end of the first drivingmember 22 to prevent the first drivingmember 22 from retreating. If the actuatingmember 13 is released at this time, the first drivingmember 22 will retreat for a short distance and abut against thesecond backstop portion 71 to stop and continue to retreat.
导向件81自第二止退点91运动至第三止退点92前的过程，第一驱动件22在第二止退部71与第三止退部72之间向远端移动。此过程中，若松开致动件13，第一驱动件22会后退一小段距离后与第二止退部71相抵接而停止继续后退。When theguide member 81 moves from thesecond stop point 91 to before thethird stop point 92 , the first drivingmember 22 moves distally between thesecond stop portion 71 and thethird stop portion 72 . During this process, if the actuatingmember 13 is released, the first drivingmember 22 will retreat for a short distance and then abut against thesecond stop portion 71 to stop moving backward.
参考图20，导向件81运动至第三止退点92时，第一驱动件22位于第三位置，第一驱动件22恰好运动至第三止退部72的远端，第一驱动件22与第三止退部72的远端抵接以阻止所述第一驱动件22后退。导向件81运动至第三止退点92时，致动件13位于中间位置，夹子59位于准备位置。Referring to FIG. 20 , when theguide member 81 moves to thethird stop point 92, thefirst drive member 22 is at the third position, and thefirst drive member 22 just moves to the far end of thethird backstop portion 72, and thefirst drive member 22 It abuts against the distal end of thethird stop portion 72 to prevent the first drivingmember 22 from retreating. When theguide member 81 moves to thethird stop point 92, the actuatingmember 13 is at the middle position, and theclip 59 is at the ready position.
导向件81自第三止退点92运动至终点93前的过程，第一驱动件22一直位于第三位置，第三止退部72与第一驱动件22的近端抵接以防止第一驱动件22后退。When theguide member 81 moves from thethird stop point 92 to theend point 93, thefirst driver 22 is always at the third position, and thethird stopper 72 abuts against the proximal end of thefirst driver 22 to prevent the first Thedriver 22 moves backward.
导向件81自第三止退点92运动至终点93前的过程，导向枢转件67未向下移动，使得第三止退部72能够保持与第一驱动件22的近端相抵接，使得送夹杆24能够在夹子59的近端抵接夹子59，夹子59不会在施夹过程中后退，从而能够保证施夹的稳定性。During the process of theguide member 81 moving from thethird stop point 92 to theend point 93, theguide pivot member 67 does not move downward, so that thethird stop part 72 can keep abutting against the proximal end of the first drivingmember 22, so that Theclip feeding rod 24 can abut against theclip 59 at the proximal end of theclip 59, and theclip 59 will not retreat during the clip application, thereby ensuring the stability of the clip application.
参考图21，响应于导向件81自所述第三止退点92运动至终点93时，第三止退部72与第一驱动件22分离。具体的，导向件81到达终点93时为施夹完成时刻，导向枢转件67下移，第三止退部72移动至第一驱动件22的下方，第一驱动件22复位，此时致动位于闭合位置。Referring to FIG. 21 , in response to the movement of theguide member 81 from thethird stop point 92 to theend point 93 , thethird stop portion 72 is separated from the first drivingmember 22 . Specifically, when theguide member 81 reaches theend point 93, it is the moment when the clip application is completed. Theguide pivot member 67 moves down, thethird backstop 72 moves to the bottom of thefirst drive member 22, and thefirst drive member 22 resets. At this time, move in the closed position.
参考图23，导引通道82包括主通道83和仅一个从主通道83的开口部138延伸的从通道84，开口部138位于主通道83的两端之间。从通道84从主通道83的开口部138向远离枢转端16的方向延伸，即从通道84与枢转端16之间的距离大于主通道83与枢转端16之间的距离。主通道83的两端分别设有起点89和终点93。第一止退点90、第二止退点91和第三止退点92均位于从通道84内。偏置弹簧80施加给导向枢转件67作用力，使得导向件81能够脱离主通道83进入从通道84。Referring to FIG. 23 , theguide passage 82 includes amain passage 83 and only oneslave passage 84 extending from anopening portion 138 of themain passage 83 between both ends of themain passage 83 . Thesecondary passage 84 extends away from the pivot end 16 from theopening 138 of themain passage 83 , that is, the distance between thesecondary passage 84 and thepivot end 16 is greater than the distance between themain passage 83 and thepivot end 16 . The two ends of themain passage 83 are respectively provided with astarting point 89 and anending point 93 . Thefirst backstop point 90 , thesecond backstop point 91 and thethird backstop point 92 are all located in thesecondary channel 84 . Thebias spring 80 exerts a force on theguide pivot member 67 so that theguide member 81 can disengage from themain passage 83 and enter theslave passage 84 .
当导向件81从主通道83的起点89运动至从通道84中时，导向件81上移至第一止退点90，导向枢转件67向上转动。当导向件81在从通道84内移动时，导向件81依次经过第二止退点91和第三止退点92。导向件81自第三止退点92移动至终点93前，导向件81仍然在从通道84内移动，此时第三止退部72始终与第一驱动件22保持抵接。当导向件81自从通道84的第三止退点92移动至终点93时，导向件81下移，使得导向枢转件67下移，第三止退部72移动至第一驱动件22的下方，第一驱动件22复位。When theguide piece 81 moves from thestarting point 89 of themain channel 83 into thesecondary channel 84 , theguide piece 81 moves up to thefirst backstop point 90 , and theguide pivot member 67 turns upward. When theguide piece 81 moves in thesecondary channel 84 , theguide piece 81 passes through thesecond stop point 91 and thethird stop point 92 sequentially. Before theguide piece 81 moves from thethird backstop point 92 to theend point 93 , theguide piece 81 is still moving from thechannel 84 , and thethird backstop portion 72 is always in contact with thefirst driving piece 22 . When theguide piece 81 moves from thethird backstop point 92 of thechannel 84 to theend point 93, theguide piece 81 moves down, so that theguide pivot piece 67 moves down, and thethird backstop part 72 moves to the bottom of thefirst driving piece 22 , the first drivingmember 22 resets.
下面从导向件81的角度，详细介绍本实施例施夹钳执行送夹动作、钳口闭合动作的工作过程：From the perspective of theguide 81, the working process of the clamp applier in this embodiment to perform the clamp feeding action and jaw closing action will be introduced in detail:
操作者按压致动件13，使得导向件81能够从起点89依次运动至第一止退点90、第二止退点91、第三止退点92和终点93。The operator presses theactuator 13 so that theguide 81 can move from thestarting point 89 to thefirst stop point 90 , thesecond stop point 91 , thethird stop point 92 and theend point 93 in sequence.
参考图18-19，导向件81从起点89运动至第一止退点90的过程，导向件81自主通道83进入从通道84，导向枢转件67向上转动，第一止退部68、第二止退部71、第三止退部72均上移，第一驱动件22移动至第一止退部68的远端。18-19, theguide piece 81 moves from thestarting point 89 to thefirst backstop point 90, theguide piece 81 enters theslave passageway 84 from themain channel 83, theguide pivot piece 67 rotates upward, thefirst backstop part 68, the second backstop The twoanti-retraction parts 71 and the thirdanti-retraction part 72 both move upwards, and the first drivingmember 22 moves to the distal end of the firstanti-retraction part 68 .
导向件81从第一止退点90移动至第二止退点91的过程，导向件81在从通道84中移动，第一驱动件22从第一止退部68的远端移动至第二止退部71的远端。During the process of theguide piece 81 moving from thefirst backstop point 90 to thesecond backstop point 91, theguide piece 81 moves in thesecondary channel 84, and the first drivingmember 22 moves from the distal end of thefirst backstop portion 68 to thesecond backstop point 91. The distal end of theretreat portion 71.
导向件81从起点89移动至第二止退点91的过程中，导向柱45一直在第一引导面43上移动，第一离合件46与第一驱动件22可分离的连接，切换机构驱动第一驱动件22移动。During the process of theguide piece 81 moving from thestarting point 89 to thesecond stop point 91, theguide column 45 has been moving on thefirst guide surface 43, the firstclutch piece 46 is detachably connected to thefirst drive piece 22, and the switching mechanism drives The first drivingmember 22 moves.
导向件81从第二止退点91移动至第三止退点92前的过程，导向件81在从通道84中移动，第一驱动件22在第二止退部71与第三止退部72之间向远端移动。导向柱45先继续在第一引导面43上移动，当导向柱45移动至第一引导面43与第二引导面44之间的斜面上时，导向件81将要到达第三止退点92而未到达第三止退点92，并且，导向柱45在斜面上时，第一离合件46仍然与第一驱动件22可分离的连接，切换机构驱动送夹驱动机构移动。During the process of theguide piece 81 moving from thesecond backstop point 91 to thethird backstop point 92 , theguide piece 81 is moving in thesecondary channel 84 , and thefirst driver 22 is at thesecond backstop portion 71 and thethird backstop portion 72 Move to the far end. Theguide column 45 first continues to move on thefirst guide surface 43. When theguide column 45 moves to the slope between thefirst guide surface 43 and thesecond guide surface 44, theguide member 81 will reach thethird stop point 92 and Before reaching thethird backstop point 92, and when theguide column 45 is on the slope, the firstclutch member 46 is still detachably connected to the first drivingmember 22, and the switching mechanism drives the clip feeding driving mechanism to move.
参考图20，导向件81到达第三止退点92时，导向件81仍然在从通道84中移动，第一驱动件22恰好到达第三止退部72的远端，第三止退部72与第一驱动件22的近端相抵接。此时导向柱45恰好到达第二引导面44，第一离合件46与第一驱动件22分离，第二离合件与钳口驱动机构的抵推部35相抵接，切换机构能够驱动钳口驱动机构移动。导向件81到达第三止退点92时，致动件13处于中间位置，此时为送夹完成时刻，送夹驱动机构已经将夹子59送至准备位置。Referring to FIG. 20, when theguide member 81 reaches thethird backstop point 92, theguide member 81 is still moving from thechannel 84, and the first drivingmember 22 just reaches the far end of thethird backstop portion 72, and thethird backstop portion 72 and The proximal end of the first drivingmember 22 abuts against each other. At this time, theguide post 45 has just reached thesecond guide surface 44, the first clutch 46 is separated from thefirst driver 22, the second clutch is in contact with thethrust portion 35 of the jaw driving mechanism, and the switching mechanism can drive the jaws to drive. Agency moves. When theguide member 81 reaches thethird stop point 92, the actuatingmember 13 is in the middle position. At this moment, the clip feeding is completed, and the clip feeding drive mechanism has sent theclip 59 to the ready position.
导向件81从第三止退点92移动至终点93之前的过程，导向件81在从通道84中移动，从而导向枢转件67未下移，使得第三止退部72与第一驱动件22的近端保持抵接。导向柱45在第二引导面44移动，第二离合件与钳口驱动机构的抵推部35相抵接，切换机构驱动钳口驱动机构移动。In the process before theguide piece 81 moves from thethird backstop point 92 to theend point 93, theguide piece 81 moves in thesecondary channel 84, so that theguide pivot piece 67 does not move down, so that thethird backstop portion 72 and thefirst drive piece 22 The proximal ends remain in abutment. Theguide column 45 moves on thesecond guide surface 44 , the second clutch abuts against the pushingportion 35 of the jaw driving mechanism, and the switching mechanism drives the jaw driving mechanism to move.
参考图21，导向件81到达终点93时，导向件81进入主通道83，导向枢转件67下移，第三止退部72与第一驱动件22分离，第一驱动件22在第二复位件的作用下复位。此时导向柱45位于第二引导面44，第二离合件与钳口驱动机构的抵推部35相抵接。导向件81到达终点93时，致动件13处于闭合位置，此时为施夹完成时刻，位于准备位置的夹子59被施加于组织或血管。松开致动件13，则钳口驱动机构在第三复位件的作用下复位，切换机构在第一复位件的作用下复位，致动件13在切换机构的带动下复位。Referring to FIG. 21 , when theguide member 81 reaches theend point 93, theguide member 81 enters themain channel 83, theguide pivot member 67 moves down, thethird backstop 72 is separated from thefirst drive member 22, and thefirst drive member 22 is in the second position. Reset under the action of the reset piece. At this time, theguide post 45 is located on thesecond guide surface 44 , and the second clutch member abuts against the pushingportion 35 of the jaw driving mechanism. When theguide member 81 reaches theend point 93, the actuatingmember 13 is in the closed position. At this time, the clip application is completed, and theclip 59 at the ready position is applied to the tissue or blood vessel. When the actuatingmember 13 is released, the jaw drive mechanism is reset under the action of the third reset member, the switching mechanism is reset under the action of the first resetting member, and the actuatingmember 13 is reset under the drive of the switching mechanism.
参考图19，本实施例中，导向件81在导引通道82内从起点89运动至第一止退点90时，第一驱动件22已经对夹子59进行推动，夹子59的位置已经发生改变，若导向件81从第一止退点90回退至起点89，则第一止退部68会下移而无法阻止第一驱动件22后退，若第一驱动件22后退，则在下一次执行送夹动作时，会出现送夹干涉、送夹错误的现象。Referring to FIG. 19, in this embodiment, when theguide member 81 moves from thestarting point 89 to thefirst stop point 90 in theguide channel 82, the first drivingmember 22 has pushed theclip 59, and the position of theclip 59 has changed. , if theguide member 81 retreats from thefirst stop point 90 to thestarting point 89, thefirst stop part 68 will move down and cannot prevent thefirst drive member 22 from retreating. If thefirst drive member 22 retreats, the next execution During the clip feeding action, clip feeding interference and clip feeding errors will occur.
因此，本实施例中，导向件81在导引通道82内从起点89运动至第一止退点90时，导向件81能够被导引通道82锁住，导向件81不能从第一止退点90回退至起点89。具体的，参考图23，从通道84包括阻挡壁86。主通道83包括从起点89延伸至与阻挡壁86连接的第一壁85，第一壁85和阻挡壁86呈直角或锐角。这样导引通道82的简单角度设计，能保证阻挡壁86有效地阻止导向件81从第一止退点90回退至起点89。Therefore, in this embodiment, when theguide piece 81 moves from thestarting point 89 to thefirst backstop point 90 in theguide passage 82, theguide piece 81 can be locked by theguide passage 82, and theguide piece 81 cannot move from thefirst backstop point 90.Point 90 rolls back tostarting point 89. Specifically, referring to FIG. 23 , theslave channel 84 includes a blockingwall 86 . Themain channel 83 includes afirst wall 85 extending from astarting point 89 to connect with a blockingwall 86 , thefirst wall 85 and the blockingwall 86 form a right angle or an acute angle. Such a simple angle design of theguide channel 82 can ensure that the blockingwall 86 can effectively prevent theguide member 81 from retreating from thefirst stop point 90 to thestarting point 89 .
为了使导向件81能够从第三止退点92移动至终点93，从通道84还包括引导壁88。主通道83还包括从终点93延伸至与引导壁88连接的第二壁87，第二壁87与引导壁88呈钝角。这样引导通道的简单角度设计，保证了导向件81能够从第三止退点92移动至终点93。In order to enable theguide member 81 to move from thethird stop point 92 to theend point 93 , theslave channel 84 further includes aguide wall 88 . Themain channel 83 also includes asecond wall 87 extending from anend point 93 to connect with theguide wall 88 , thesecond wall 87 forms an obtuse angle with theguide wall 88 . Such a simple angle design of the guide channel ensures that theguide member 81 can move from thethird stop point 92 to theend point 93 .
本实施例中，致动件13具有正向运动和复位运动。具体的，从初始时刻，用户保持操作致动件13，致动件13从打开位置运动到中间位置再运动到闭合位置。定义致动件13的朝向闭合位置的方向的运动为致动件13的正向运动。相应的，定义致动件13的朝向打开位置的方向的运动为致动件13的复位运动。In this embodiment, the actuatingmember 13 has forward movement and reset movement. Specifically, from the initial moment, the user keeps operating theactuator 13, and theactuator 13 moves from the open position to the middle position and then to the closed position. The movement of theactuator 13 towards the closed position is defined as the forward movement of theactuator 13 . Correspondingly, the movement of the actuatingmember 13 towards the open position is defined as the reset movement of the actuatingmember 13 .
在致动件13做正向运动时，导向件81在导引通道82中的运动路径为第一路径。在致动件13做复位运动时，导向件81在导引通道82中的运动路径为第二路径。第一运动路径包括主通道83和从通道84，第二运动路径包括主通道83且不包括从通道84。When the actuatingmember 13 moves forward, the moving path of the guidingmember 81 in the guidingchannel 82 is the first path. When the actuatingmember 13 performs a reset movement, the moving path of the guidingmember 81 in the guidingchannel 82 is the second path. The first path of motion includes themaster channel 83 and theslave channel 84 , and the second path of motion includes themaster channel 83 and does not include theslave channel 84 .
致动件13达到闭合位置时，用户松开致动件13，则在第一复位件的作用下，切换机构向近端移动复位，致动件13在切换机构的作用下复位，在此过程，不需要任何停止，第二运动路径屏蔽从通道84，避免在复位运动时导向件81从终点93进入从通道84而无法从第一止退点90回退至起点89，保证了致动件13和止退机构的顺利复位。When theactuator 13 reaches the closed position, the user releases theactuator 13, then under the action of the first reset member, the switching mechanism moves to the proximal end to reset, and theactuator 13 resets under the action of the switching mechanism. , without any stop, the second movement path shields thesecondary channel 84, avoiding that theguide 81 enters thesecondary channel 84 from theend point 93 during the reset movement and cannot retreat from thefirst stop point 90 to thestarting point 89, ensuring that theactuator 13 and the smooth reset of the stop mechanism.
为实现上述屏蔽从通道84，本实施例施夹钳还包括路径切换件94、定位机构和路径驱动件。In order to realize the above-mentioned shielding from thechannel 84, the clamp applier in this embodiment further includes apath switching element 94, a positioning mechanism and a path driving element.
路径切换件94具有开启状态和封闭状态。路径切换件94处于开启状态时，路径切换件94让开从通道84以允许导向件81进入或退出从通道84。路径切换件94处于封闭状态时，路径切换件94屏蔽从通道84以阻挡导向件81进入从通道84。Thepath switching member 94 has an open state and a closed state. When the path switch 94 is in an open state, the path switch 94 moves away from thesecondary channel 84 to allow theguide 81 to enter or exit thesecondary channel 84 . When the path switch 94 is in the closed state, the path switch 94 shields thesecondary channel 84 to prevent theguide 81 from entering thesecondary channel 84 .
参考图24，路径切换件94与致动件13连接。路径切换件94设置于致动件13与第一头部壳体18之间。如上文所述，致动件主体上设置有与壳体枢转连接的枢转端16，致动件13能够绕枢转端16转动。致动件13的握持部14设置于枢转端16的一侧，路径切换件94设置于枢转端16相对的另一侧。Referring to FIG. 24 , thepath switching member 94 is connected to theactuator 13 . The path switch 94 is disposed between the actuator 13 and thefirst head housing 18 . As mentioned above, the main body of the actuator is provided with apivot end 16 which is pivotally connected with the housing, and theactuator 13 can rotate around thepivot end 16 . The grippingportion 14 of theactuator 13 is disposed on one side of thepivot end 16 , and thepath switching member 94 is disposed on the opposite side of thepivot end 16 .
参考图24-26，路径切换件94包括枢转部95、第一触发部96、第二触发部97和执行部98。路径切换件94的枢转部95通过第二销轴137与致动件主体连接。路径切换件94能绕第二销轴137相对致动件13转动。第一触发部96设置于枢转部95的一侧，第二触发部97设置于枢转部95相对的另一侧，执行部98设置于第一触发部96，执行部98与导引通道82的从通道84对应设置，执行部98用于屏蔽从通道84。优选的，第一触发部96与第二触发部97之间呈钝角夹角，并且该钝角夹角朝向第一头部壳体。在其他实施方式中，第一触发部96与第二触发部97之间可呈锐角或直角。Referring to FIGS. 24-26 , thepath switching member 94 includes a pivotingportion 95 , a first triggeringportion 96 , a second triggeringportion 97 and anactuating portion 98 . The pivotingportion 95 of thepath switching member 94 is connected to the main body of the actuator through thesecond pin shaft 137 . Thepath switching member 94 can rotate relative to the actuatingmember 13 around thesecond pin shaft 137 . The first triggeringpart 96 is arranged on one side of the pivotingpart 95, the second triggeringpart 97 is arranged on the opposite side of the pivotingpart 95, theexecution part 98 is arranged on the first triggeringpart 96, and theexecution part 98 and the guide channel Theslave channel 84 of 82 is provided correspondingly, and the executingpart 98 is used to shield theslave channel 84. Preferably, thefirst trigger part 96 and thesecond trigger part 97 form an obtuse angle, and the obtuse angle faces the first head shell. In other embodiments, an acute angle or a right angle may be formed between the first triggeringportion 96 and the second triggeringportion 97 .
参考图25 B-26，执行部98朝向主通道83的开口部138延伸有挡板99，当执行部98朝向致动件13方向倾斜时，挡板99能够将主通道83的开口部138封闭以封闭从通道84，使得导向件81不能从开口部138进入从通道84，此时导向件81只能自主通道83的终点93处沿挡板99运动到主通道83的起点89。25 B-26, theactuator 98 has abaffle 99 extending toward theopening 138 of themain passage 83, and when theactuator 98 is inclined toward theactuator 13, thebaffle 99 can close theopening 138 of themain passage 83 To close thesecondary passage 84, so that theguide 81 cannot enter thesecondary passage 84 from theopening 138, at this time theguide 81 can only move to thestarting point 89 of themain passage 83 along thebaffle plate 99 at theend point 93 of themain passage 83.
当路径切换件94绕枢转部95处的第二销轴137相对致动件13转动时，使得第一触发部96朝向第一头部壳体18内壁转动或是朝向致动件13转动，当第一触发部96朝向第一头部壳体18内壁转动时，第二触发部97朝向致动件13转动，当第一触发部96朝向致动件13转动时，第二触发部97朝向第一头部壳体18内壁转动。When thepath switching member 94 rotates relative to the actuatingmember 13 around thesecond pin shaft 137 at the pivotingportion 95 , the first triggeringportion 96 rotates toward the inner wall of thefirst head housing 18 or toward the actuatingmember 13 , When thefirst trigger part 96 turns toward the inner wall of thefirst head housing 18, thesecond trigger part 97 turns toward theactuator 13, and when thefirst trigger part 96 turns toward theactuator 13, thesecond trigger part 97 turns toward the The inner wall of thefirst head housing 18 rotates.
定位机构包括凸部105、第一凹部106和第二凹部107。参考图25B，凸部105设置于路径切换件94的枢转部95。路径切换件94绕第二销轴137转动时，凸部105随之同步转动。参考图18-21，第一凹部106和第二凹部107均设置于致动件主体。凸部105具有弹性，使得凸部105能够自第一凹部106内运动至第二凹部107内，也能够自第二凹部107内运动至第一凹部106内。The positioning mechanism includes aconvex portion 105 , a firstconcave portion 106 and a secondconcave portion 107 . Referring to FIG. 25B , theconvex portion 105 is provided on thepivot portion 95 of thepath switching member 94 . When thepath switching member 94 rotates around thesecond pin shaft 137 , theprotrusion 105 rotates synchronously with it. Referring to FIGS. 18-21 , both thefirst recess 106 and thesecond recess 107 are provided on the main body of the actuator. Theprotrusion 105 has elasticity, so that theprotrusion 105 can move from thefirst recess 106 to thesecond recess 107 , and can also move from thesecond recess 107 to thefirst recess 106 .
当凸部105位于第二凹部107内时，第二触发部97朝向致动件13方向倾斜，第一触发部96朝向第一头部壳体18内壁的方向倾斜，设置于第一触发部96的执行部98也朝向第一头部壳体18内壁的方向倾斜，使得执行部98让开从通道84，此时路径切换件94处于开启状态。When theconvex part 105 is located in the secondconcave part 107, thesecond trigger part 97 is inclined toward the direction of theactuator 13, and thefirst trigger part 96 is inclined toward the direction of the inner wall of thefirst head housing 18, and is arranged on thefirst trigger part 96. Theactuator part 98 is also inclined towards the direction of the inner wall of thefirst head housing 18, so that theactuator part 98 is out of the way from thechannel 84, and thepath switching member 94 is in an open state at this moment.
当凸部105位于第一凹部106内时，第二触发部97朝向第一头部壳体18内壁的方向倾斜，第一触发部96朝向致动件13方向倾斜，设置于第一触发部96的执行部98也朝向致动件13方向倾斜，使得执行部98封闭从通道84，此时路径切换件94处于封闭状态。When theconvex portion 105 is located in the firstconcave portion 106, the second triggeringportion 97 is inclined toward the inner wall of thefirst head housing 18, and the first triggeringportion 96 is inclined toward the direction of theactuator 13, and is arranged on the first triggeringportion 96. Theactuator part 98 is also inclined towards the direction of theactuator 13, so that theactuator part 98 closes thesecondary channel 84, and thepath switching part 94 is in a closed state at this time.
当没有外力作用时，凸部105可操作的容置于第二凹部107或者第一凹部106内，凸部105能够被第二凹部107或者第一凹部106所限位，使得路径切换件94不能绕第二销轴137转动，从而使得路径切换件94始终保持在开启状态或者封闭状态。When there is no external force, theconvex portion 105 is operatively accommodated in the secondconcave portion 107 or the firstconcave portion 106, and theconvex portion 105 can be limited by the secondconcave portion 107 or the firstconcave portion 106, so that thepath switching member 94 cannot Rotate around thesecond pin shaft 137, so that thepath switching member 94 is always kept in an open state or a closed state.
致动件13运动期间路径切换件94与路径驱动件发生相对运动。路径驱动件能够驱动路径切换件94在开启状态和封闭状态之间切换。具体的，路径驱动件驱动路径切换件94绕第二销轴137相对致动件13转动，使得凸部105在第二凹部107与第一凹部106之间运动。当路径切换件94的凸部105可操作地容置于第二凹部107内时，路径切换件94需要绕第二销轴137沿第一预设方向转动第一角度，才能使凸部105运动至第一凹部106内。当路径切换件94的凸部105可操作地容置于第一凹部106内时，路径切换件94需要绕第二销轴137沿第二预设方向转动第二角度，才能使凸部105运动至第二凹部107内。第一预设方向与第二预设方向互为相反方向，例如，当第一预设方向为顺时针方向时，第二预设方向为逆时针方向。During the movement of the actuatingmember 13, thepath switching member 94 and the path driving member move relative to each other. The path driving member can drive thepath switching member 94 to switch between the open state and the closed state. Specifically, the path driving member drives thepath switching member 94 to rotate relative to the actuatingmember 13 around thesecond pin shaft 137 , so that theconvex portion 105 moves between the secondconcave portion 107 and the firstconcave portion 106 . When theconvex portion 105 of thepath switching member 94 is operatively accommodated in the secondconcave portion 107, thepath switching member 94 needs to be rotated by a first angle around thesecond pin shaft 137 in the first preset direction to move theconvex portion 105 into thefirst recess 106 . When theconvex portion 105 of thepath switching member 94 is operatively accommodated in the firstconcave portion 106, thepath switching member 94 needs to be rotated by a second angle around thesecond pin shaft 137 in a second preset direction to move theconvex portion 105 into thesecond recess 107. The first preset direction and the second preset direction are mutually opposite directions, for example, when the first preset direction is clockwise, the second preset direction is counterclockwise.
参考图27，路径驱动件包括第一导向肋101和第二导向肋103，第一导向肋101和第二导向肋103均设置于第一头部壳体18的内壁。第一导向肋101具有第一导向斜面102，第二导向肋103具有第二导向斜面104。Referring to FIG. 27 , the path driving member includes afirst guiding rib 101 and asecond guiding rib 103 , both of which are disposed on the inner wall of thefirst head housing 18 . Thefirst guide rib 101 has afirst guide slope 102 , and thesecond guide rib 103 has asecond guide slope 104 .
初始时刻，用户未操作致动件13，致动件13位于打开位置，此时路径切换件94位于第二导向肋103处，与第一导向肋101脱离。响应于致动件13从打开位置向闭合位置运动，致动件13能够带动路径切换件94从第二导向肋103处向第一导向肋101处运动。当致动件13位于闭合位置时，路径切换件94位于第一导向肋101处，路径切换件94与第二导向肋103脱离。响应于致动件13从闭合位置向打开位置运动，致动件13能够带动路径切换件94从第一导向肋101处向第二导向肋103处运动。具体而言：Initially, the user does not operate the actuatingmember 13 , and the actuatingmember 13 is in the open position. At this time, thepath switching member 94 is located at thesecond guiding rib 103 and disengaged from the first guidingrib 101 . In response to the movement of the actuatingmember 13 from the open position to the closed position, the actuatingmember 13 can drive thepath switching member 94 to move from thesecond guiding rib 103 to the first guidingrib 101 . When theactuator 13 is in the closed position, the path switch 94 is located at thefirst guide rib 101 , and the path switch 94 is disengaged from thesecond guide rib 103 . In response to the movement of the actuator 13 from the closed position to the open position, theactuator 13 can drive thepath switching member 94 to move from thefirst guide rib 101 to thesecond guide rib 103 . in particular:
参考图28A，初始时刻，致动件13处于打开位置时，第一触发部96与第一导向肋101脱离，第二触发部97位于第二导向肋103与致动件13之间，凸部105可操作地容置于第二凹部107内，第二触发部97朝向致动件13方向倾斜，第一触发部96朝向第一头部壳体18内壁的方向倾斜，执行部98朝向第一头部壳体18内壁的方向倾斜，执行部98让开从通道84，路径切换件94处于开启状态。Referring to FIG. 28A, at the initial moment, when theactuator 13 is in the open position, thefirst trigger part 96 is separated from thefirst guide rib 101, thesecond trigger part 97 is located between thesecond guide rib 103 and theactuator 13, and theconvex part 105 is operatively accommodated in thesecond recess 107, thesecond trigger part 97 is inclined toward the direction of theactuator 13, thefirst trigger part 96 is inclined toward the direction of the inner wall of thefirst head housing 18, and theactuator part 98 is toward the first The direction of the inner wall of thehead housing 18 is inclined, theactuator 98 is out of the way from thechannel 84, and thepath switching member 94 is in an open state.
参考图28B，致动件13从打开位置运动到闭合位置之前的过程，致动件13带动路径切换件94从第二导向肋103处向第一导向肋101处运动，当第一触发部96运动至第一导向肋101的第一导向斜面102上，第一触发部96继续沿着第一导向斜面102移动，第一导向斜面102对第一触发部96施加力，使得路径切换件94开始绕第二销轴137沿第一预设方向转动，由于未转动足够的角度，即未转动第一角度，凸部105仍然可操作地容置于第二凹部107内，第二凹部107对凸部105限位，路径切换件94始终保持在开启状态。致动件13做正向运动从打开位置运动到闭合位置之前的过程，导向件81均能够在从通道84内运动。Referring to FIG. 28B , the process before the actuator 13 moves from the open position to the closed position, theactuator 13 drives thepath switching member 94 to move from thesecond guide rib 103 to thefirst guide rib 101 , when thefirst trigger part 96 Move to thefirst guide slope 102 of thefirst guide rib 101, thefirst trigger part 96 continues to move along thefirst guide slope 102, and thefirst guide slope 102 exerts force on thefirst trigger part 96, so that thepath switching member 94 starts Rotate along the first predetermined direction around thesecond pin shaft 137. Since the angle of rotation is not sufficient, that is, the first angle is not rotated, theconvex part 105 is still operatively accommodated in the secondconcave part 107, and the secondconcave part 107 is opposed to the convex part. Theportion 105 is limited, and thepath switching member 94 is always kept in an open state. Before the actuatingmember 13 moves forward from the open position to the closed position, theguide member 81 can move in thesecondary channel 84 .
参考图29A，致动件13到达闭合位置的时刻，路径切换件94的第一触发部96沿第一导向斜面102运动至第一导向肋101与致动件13之间，使得路径切换件94绕第二销轴137沿第一预设方向转动了第一角度，凸部105从第二凹部107运动至第一凹部106内，路径切换件94切换至封闭状态。Referring to FIG. 29A, when the actuatingmember 13 reaches the closed position, the first triggeringportion 96 of thepath switching member 94 moves along thefirst guide slope 102 to between the first guidingrib 101 and the actuatingmember 13, so that thepath switching member 94 When thesecond pin shaft 137 is rotated by a first angle along the first preset direction, theconvex portion 105 moves from the secondconcave portion 107 into the firstconcave portion 106 , and thepath switching member 94 switches to a closed state.
参考图29B，致动件13从闭合位置向打开位置复位运动且到达打开位置之前的过程，在致动件13的带动下，路径切换件94从第一导向肋101处向第二导向肋103处移动，当第二触发部97运动至第二导向肋103的第二导向斜面104上，第二触发部97继续沿着第二导向斜面104移动，第二导向斜面104对第二触发部97施加力，使得路径切换件94开始绕第二销轴137沿第二预设方向转动，由于未转动足够的角度，即未转动第二角度，凸部105仍然可操作地容置于第一凹部106内，第一凹部106对凸部105限位，路径切换件94始终保持在封闭状态。致动件13从闭合位置向打开位置复位运动且到达打开位置之前的过程，导向件81不能在从通道84内运动。Referring to FIG. 29B , theactuator 13 moves from the closed position to the open position before reaching the open position. Driven by theactuator 13 , thepath switching member 94 moves from thefirst guide rib 101 to thesecond guide rib 103 . When thesecond trigger part 97 moves to thesecond guide slope 104 of thesecond guide rib 103, thesecond trigger part 97 continues to move along thesecond guide slope 104, and thesecond guide slope 104 is opposite to thesecond trigger part 97. A force is applied so that thepath switching member 94 starts to rotate around thesecond pin shaft 137 in a second predetermined direction. Since the angle is not rotated enough, that is, the second angle is not rotated, theconvex portion 105 is still operatively accommodated in the firstconcave portion 106, the firstconcave portion 106 limits theconvex portion 105, and thepath switching member 94 is always kept in a closed state. During the reset movement of the actuatingmember 13 from the closed position to the open position and before reaching the open position, theguide member 81 cannot move in thesecondary channel 84 .
参考图28A，致动件13从闭合位置向打开位置复位运动且到达打开位置时，路径切换件94的第二触发部97沿第二导向斜面104运动至第二导向肋103与致动件13之间，使得路径切换件94绕第二销轴137沿第二预设方向转动了第二角度，凸部105从第一凹部106运动至第二凹部107内，路径切换件94切换至开启状态。Referring to FIG. 28A , when theactuator 13 resets from the closed position to the open position and reaches the open position, thesecond trigger portion 97 of thepath switching member 94 moves along thesecond guide slope 104 to thesecond guide rib 103 and theactuator 13 In between, thepath switching member 94 rotates a second angle around thesecond pin shaft 137 along the second preset direction, theconvex part 105 moves from the firstconcave part 106 to the secondconcave part 107, and thepath switching part 94 switches to the open state .
如上文所述，本实施例施夹钳还包括传动组件、转向杆组件和操作元件108。参考图30，钳口组件6与杆身组件1的主轴3通过转动件58枢转连接，响应于施加于操作元件108的力，操作元件108运动以驱动传动组件运动，使得转向杆组件运动以驱动钳口组件6相对杆身组件1绕第一枢转轴线53转动。As mentioned above, the clip applier of this embodiment also includes a transmission assembly, a steering rod assembly and anoperating element 108 . Referring to FIG. 30 , thejaw assembly 6 is pivotally connected to themain shaft 3 of theshaft assembly 1 through a rotatingmember 58. In response to the force applied to theoperating element 108, theoperating element 108 moves to drive the transmission assembly, so that the steering rod assembly moves to Thejaw assembly 6 is driven to rotate relative to theshaft assembly 1 around thefirst pivot axis 53 .
具体的，操作元件108通过连接组件与传动组件连接。参考图31，连接组件包括驱动杆112和轴体113。驱动杆112限定第三纵长轴线139。驱动杆112与传动组件连接，驱动杆112的第三纵长轴线139与杆身组件1的第二纵长轴线2呈角度，本实施例优选第三纵长轴线139与第二纵长轴线2垂直。轴体113与驱动杆112连接，轴体113的设置方向与杆身组件1的第二纵长轴线2的方向平行或呈角度，本实施例优选轴体113的设置方向与杆身组件1的第二纵长轴线2的方向平行。参考图33A-33B，操作元件108套设于轴体113并能沿轴体113滑动。操作元件108能够绕驱动杆112的第三纵长轴线139转动并带动驱动杆112转动。Specifically, theoperating element 108 is connected with the transmission assembly through the connection assembly. Referring to FIG. 31 , the connecting assembly includes a drivingrod 112 and ashaft body 113 . Thedrive rod 112 defines a thirdelongated axis 139 . The drivingrod 112 is connected to the transmission assembly, and the thirdlongitudinal axis 139 of the drivingrod 112 is at an angle to the second longitudinal axis 2 of theshaft assembly 1 . In this embodiment, the thirdlongitudinal axis 139 and the second longitudinal axis 2 are preferred. vertical. Theshaft body 113 is connected to the drivingrod 112, and the installation direction of theshaft body 113 is parallel to or at an angle to the direction of the second longitudinal axis 2 of theshaft assembly 1. In this embodiment, the installation direction of theshaft body 113 is preferably the same as that of theshaft assembly 1. The direction of the second longitudinal axis 2 is parallel. Referring to FIGS. 33A-33B , theoperating element 108 is sleeved on theshaft body 113 and can slide along theshaft body 113 . Theoperating element 108 is rotatable around the thirdlongitudinal axis 139 of thedrive rod 112 and drives thedrive rod 112 to rotate.
参考图31，传动组件包括第一传动件118和第二传动件120。第一传动件118具有第一齿部119，第一齿部119包括多个第一齿，多个第一齿沿圆周排布，使得第一齿部119的中心轴线垂直于杆身组件1的第二纵长轴线2。第二传动件120套设于主轴3，第二传动件120具有第二齿部121，第二齿部121包括多个第二齿，多个第二齿大致沿杆身组件1的第二纵长轴线2方向排布。第二齿部121设置于第二传动件120的一侧。多个第二齿排成一排。第一传动件118的第一齿部119与第二传动件120的第二齿部121啮合连接。Referring to FIG. 31 , the transmission assembly includes afirst transmission member 118 and asecond transmission member 120 . Thefirst transmission member 118 has afirst tooth portion 119, thefirst tooth portion 119 includes a plurality of first teeth, and the plurality of first teeth are arranged along the circumference, so that the central axis of thefirst tooth portion 119 is perpendicular to theshaft assembly 1 Second longitudinal axis 2. Thesecond transmission member 120 is sleeved on themain shaft 3, and thesecond transmission member 120 has asecond tooth portion 121. Thesecond tooth portion 121 includes a plurality of second teeth, and the plurality of second teeth are roughly along the second longitudinal direction of theshaft assembly 1. The long axis is arranged in 2 directions. Thesecond tooth portion 121 is disposed on one side of thesecond transmission member 120 . A plurality of second teeth are arranged in a row. Thefirst tooth portion 119 of thefirst transmission member 118 is engaged with thesecond tooth portion 121 of thesecond transmission member 120 .
第一传动件118与连接组件中的驱动杆112连接。操纵操作元件108使得驱动杆112转动以带动第一传动件118转动，第一齿部119与第二齿部121啮合传动，使得第二传动件120产生向远端或者近端的位移。Thefirst transmission member 118 is connected with the drivingrod 112 in the connection assembly. Manipulating theoperating element 108 makes the drivingrod 112 rotate to drive thefirst transmission member 118 to rotate, and thefirst tooth portion 119 is engaged with thesecond tooth portion 121 for transmission, so that thesecond transmission member 120 generates a distal or proximal displacement.
再参考图31，第二齿部121沿杆身组件1的第二纵长轴线2具有相对的第一端和第二端，第一端具有限位齿122，第二端也具有限位齿122。即，第二齿部121的多个第二齿位于两个限位齿122之间。限位齿122的宽度大于第二齿，限位齿122与第一传动件118的第一齿部119不适配，因此，第一传动件118无法与限位齿122啮合，使得第一传动件118只能在第二传动件120两端的限位齿122之间运动，由此，当第一传动件118运动到第二齿部121第一端的限位齿122处，第一传动件118不能再继续运动。当第一传动件118运动到第二齿部121第二端的限位齿122处，第一传动件118也不能再继续运动。Referring again to FIG. 31 , thesecond tooth portion 121 has opposite first and second ends along the second longitudinal axis 2 of theshaft assembly 1, the first end has a limitingtooth 122, and the second end also has a limitingtooth 122. That is, the plurality of second teeth of thesecond tooth portion 121 are located between the two limitingteeth 122 . The width of thelimit tooth 122 is greater than that of the second tooth, and thelimit tooth 122 does not match thefirst tooth portion 119 of thefirst transmission member 118. Therefore, thefirst transmission member 118 cannot mesh with thelimit tooth 122, so that thefirst transmission Part 118 can only move between thestop teeth 122 at the two ends of thesecond transmission part 120, thus, when thefirst transmission part 118 moves to thestop teeth 122 at the first end of thesecond tooth part 121, thefirst transmission part 118 can no longer continue to exercise. When thefirst transmission member 118 moves to thelimit tooth 122 at the second end of thesecond tooth portion 121 , thefirst transmission member 118 cannot continue to move.
需要说明的是，对于传动组件的运动，相当于是第一传动件118沿着第二传动件120的第二齿部121移动，但是实际运动中，第一传动件118在杆身组件1的第二纵长轴线2的方向上是无位移的，第二传动件120在杆身组件1的第二纵长轴线2的方向上存在向远端或者近端的位移，以驱动转向杆组件移动，从而驱动钳口组件6相对杆身组件1绕第一枢转轴线53转动。It should be noted that, for the movement of the transmission assembly, it is equivalent to the movement of thefirst transmission member 118 along thesecond tooth portion 121 of thesecond transmission member 120 , but in actual movement, thefirst transmission member 118 is on the second gear of theshaft assembly 1 . There is no displacement in the direction of the two longitudinal axes 2, and thesecond transmission member 120 has a displacement to the distal end or the proximal end in the direction of the second longitudinal axis 2 of theshaft assembly 1, so as to drive the steering rod assembly to move, Thus, thejaw assembly 6 is driven to rotate relative to theshaft assembly 1 around thefirst pivot axis 53 .
参考图32，转向杆组件包括第一连杆123和第二连杆124。主轴3设置有第二容置槽，第二连杆124设置于第二容置槽中并能够在第二容置槽内移动。第二连杆124的近端与第二传动件120连接。第二连杆124的远端与第一连杆123的近端枢转连接。第一连杆123的远端与转动件58的近端枢转连接。从而当第二传动件120产生向远端或者近端的位移时，能够带动第二连杆124向远端或近端移动，使得第一连杆123相对第二连杆124沿第一转动方向或第二转动方向转动，从而第一连杆123驱动钳口组件6沿第一转动方向或第二转动方向相对杆身组件1绕第一枢转轴线53转动。Referring to FIG. 32 , the steering rod assembly includes afirst link 123 and asecond link 124 . Themain shaft 3 is provided with a second accommodating groove, and the second connectingrod 124 is arranged in the second accommodating groove and can move in the second accommodating groove. A proximal end of the second connectingrod 124 is connected to thesecond transmission member 120 . The distal end of thesecond link 124 is pivotally connected to the proximal end of thefirst link 123 . The distal end of thefirst link 123 is pivotally connected to the proximal end of the rotatingmember 58 . Therefore, when thesecond transmission member 120 is displaced to the distal end or the proximal end, it can drive the second connectingrod 124 to move distally or proximally, so that the first connectingrod 123 moves in the first rotational direction relative to the second connectingrod 124 Or the second rotation direction, so that thefirst link 123 drives thejaw assembly 6 to rotate relative to theshaft assembly 1 around thefirst pivot axis 53 in the first rotation direction or the second rotation direction.
本实施例操作元件108具有锁定状态和解锁状态。在锁定状态，操作元件108做且仅能做第一运动以使其切换至解锁状态。“做且仅能做第一运动”是指，操作元件108仅做第一运动，无法做第二运动，从而无法使钳口组件6相对杆身组件1绕第一枢转轴线53转动。在解锁状态，操作元件108能做第二运动以驱动第一传动件118运动，从而使钳口组件6相对杆身组件1绕第一枢转轴线53转动。在解锁状态，操作元件108能做第三运动以使其切换至锁定状态。In this embodiment, theoperating element 108 has a locked state and an unlocked state. In the locked state, theoperating element 108 makes and can only make a first movement to switch it to the unlocked state. "Doing and only being able to perform the first movement" means that theoperating element 108 can only perform the first movement and cannot perform the second movement, so that thejaw assembly 6 cannot rotate around thefirst pivot axis 53 relative to theshaft assembly 1 . In the unlocked state, theoperating element 108 can make a second movement to drive thefirst transmission member 118 to move, so that thejaw assembly 6 can rotate relative to theshaft assembly 1 around thefirst pivot axis 53 . In the unlocked state, theoperating element 108 can perform a third movement to switch it to the locked state.
为了实现对操作元件108的锁定，本实施例施夹钳还包括锁定件110，锁定件110设置于头部壳体。参考图33B，操作元件108具有凸块109，凸块109位于锁定件110与驱动杆112之间。In order to realize the locking of theoperating element 108, the clamp applicator of this embodiment further includes alocking piece 110, which is arranged on the head housing. Referring to FIG. 33B , theoperating element 108 has aprojection 109 located between the lockingmember 110 and thedrive rod 112 .
参考图33A-33B，锁定件110具有多个凹陷部111，每一个凹陷部111均与操作元件108的凸块109相适配，每一个凹陷部111均能够收容凸块109，凸块109能够被选择性的容置于其中一个凹陷部111内。在锁定状态，操作元件108的凸块109可操作地保持于锁定件110的其中一个凹陷部111内。在解锁状态，操作元件108的凸块109脱离其所在的凹陷部111。由于操作元件108能沿轴体113滑动，使得操作元件108的凸块109能够在驱动杆112与锁定件110之间移动，以使操作元件108在锁定状态与解锁状态之间切换。操作元件108沿朝向驱动杆112的方向在轴体113上滑动为第一运动，操作元件108绕驱动杆112的第三纵长轴线139的转动为第二运动，操作元件108沿背向驱动杆112的方向在轴体113上滑动为第三运动。33A-33B, the lockingmember 110 has a plurality ofrecesses 111, and eachrecess 111 is adapted to theprotrusion 109 of theoperating element 108, and eachrecess 111 can accommodate theprotrusion 109, and theprotrusion 109 can It is selectively accommodated in one of therecesses 111 . In the locked state, theprojection 109 of theoperating element 108 is operatively retained in one of therecesses 111 of the lockingmember 110 . In the unlocked state, thecam 109 of theoperating element 108 disengages from therecess 111 in which it is located. Since theoperating element 108 can slide along theshaft body 113 , theprotrusion 109 of theoperating element 108 can move between the drivingrod 112 and the lockingmember 110 , so that theoperating element 108 can be switched between the locked state and the unlocked state. Theoperating element 108 slides on theshaft body 113 along the direction toward the drivingrod 112 as the first movement, the rotation of theoperating element 108 around the thirdlongitudinal axis 139 of the drivingrod 112 is the second movement, and theoperating element 108 moves along the direction away from the driving rod. Sliding on theshaft 113 in the direction of 112 is the third movement.
参考图33A-33B，施夹钳包括第五弹簧114。第五弹簧114套设于轴体113，第五弹簧114设置于操作元件108与驱动杆112之间，当操作元件108沿朝向驱动杆112的方向在轴体113上滑动（第一运动）时，第五弹簧114被压缩而储存复位能量，释放复位能量，使得操作元件108能够做第三运动。Referring to FIGS. 33A-33B , the clip applier includes afifth spring 114 . Thefifth spring 114 is sleeved on theshaft body 113, and thefifth spring 114 is arranged between the operatingelement 108 and the drivingrod 112. When theoperating element 108 slides on theshaft body 113 in the direction toward the driving rod 112 (the first movement) , thefifth spring 114 is compressed to store reset energy, and releases the reset energy so that theoperating element 108 can perform a third movement.
在锁定状态下，响应于施加于操作元件108的力，操作元件108做第一运动，使得操作元件108的凸块109脱离其所在的凹陷部111，从而操作元件108由锁定状态切换至解锁状态。In the locked state, in response to the force applied to theoperating element 108, theoperating element 108 makes a first movement, so that theprotrusion 109 of theoperating element 108 breaks away from therecess 111 where it is located, so that theoperating element 108 is switched from the locked state to the unlocked state .
在解锁状态下，响应于施加于操作元件108的力，操作元件108做第二运动，使得钳口组件6相对杆身组件1绕第一枢转轴线53转动。In the unlocked state, in response to a force applied to theoperating element 108 , theoperating element 108 makes a second movement such that thejaw assembly 6 rotates relative to theshaft assembly 1 about thefirst pivot axis 53 .
在解锁状态下，响应于施加于操作元件108的力，操作元件108做第三运动，使得操作元件108的凸块109可操作地容置于锁定件110的其中一个凹陷部111内，从而操作元件108由解锁状态切换至锁定状态。In the unlocked state, in response to the force applied to theoperating element 108, theoperating element 108 makes a third movement, so that theprotrusion 109 of theoperating element 108 is operatively accommodated in one of therecesses 111 of the lockingmember 110, thereby operatingElement 108 switches from an unlocked state to a locked state.
参考图33A-33B，锁定件110为弧形构件，多个凹陷部111设置于弧形构件的内侧，每一个凹陷部111均沿弧形构件的径向延伸。多个凹陷部111大致沿圆周排布且多个凹陷部111沿操作元件108的第二运动的运动轨迹排布。由此，当操作元件108转动了预设角度后，操作元件108能够在该预设角度下做第三运动，以使操作元件108的凸块109容置于与该预设角度所对应的凹陷部111内，从而使操作元件108保持该预设角度切换至锁定状态，使得钳口组件6能稳定的保持于一定的转动角度。Referring to FIGS. 33A-33B , the lockingmember 110 is an arc-shaped member, and a plurality ofrecesses 111 are disposed inside the arc-shaped member, and eachrecess 111 extends along the radial direction of the arc-shaped member. The plurality of recessedparts 111 are arranged substantially along the circumference and the plurality of recessedparts 111 are arranged along the movement track of the second movement of theoperating element 108 . Thus, when theoperating element 108 rotates a preset angle, theoperating element 108 can perform a third movement at the preset angle, so that theprotrusion 109 of theoperating element 108 is accommodated in the depression corresponding to the preset angle In theportion 111, theoperating element 108 is switched to the locked state while maintaining the preset angle, so that thejaw assembly 6 can be stably maintained at a certain rotation angle.
锁定件110的多个凹陷部111的设置，使得钳口组件6能够转动不同的角度并能够稳定地保持于其转动角度。具体的，操作元件108能够驱动钳口组件6沿第一转动方向相对杆身组件1绕第一枢转轴线53转动，也能够驱动钳口组件6沿第二转动方向相对杆身组件1绕第一枢转轴线53转动。钳口组件6沿第一转动方向的转动包括一个转动到底的状态，此时钳口组件6处于第一转动位置。钳口组件6沿第二转动方向的转动也包括一个转动到底的状态，此时钳口组件6处于第二转动位置。The arrangement of the plurality of recessedportions 111 of the lockingmember 110 enables thejaw assembly 6 to rotate at different angles and to be stably maintained at the angle of rotation. Specifically, theoperating element 108 can drive thejaw assembly 6 to rotate around thefirst pivot axis 53 relative to theshaft assembly 1 along the first rotation direction, and can also drive thejaw assembly 6 to rotate around thefirst pivot axis 53 relative to theshaft assembly 1 along the second rotation direction. Apivot axis 53 rotates. The rotation of thejaw assembly 6 along the first rotation direction includes a state of turning to the bottom, and at this time thejaw assembly 6 is in the first rotation position. The rotation of thejaw assembly 6 along the second rotation direction also includes a state of turning to the bottom, and at this time thejaw assembly 6 is in the second rotation position.
如上文所述，操纵操作元件108使得驱动杆112转动以带动第一传动件118转动，第一齿部119与第二齿部121啮合传动，使得第二传动件120产生向远端或者近端的位移。当第一传动件118运动到第二齿部121第一端的限位齿122处，第一传动件118不能再继续运动，此时钳口组件6位于第一转动位置。当第一传动件118运动到第二齿部121第二端的限位齿122处，第一传动件118也不能再继续运动，此时钳口组件6位于第二转动位置。As mentioned above, manipulating theoperating element 108 makes the drivingrod 112 rotate to drive thefirst transmission member 118 to rotate, and thefirst tooth portion 119 is engaged with thesecond tooth portion 121 for transmission, so that thesecond transmission member 120 generates a distal or proximal direction. displacement. When thefirst transmission member 118 moves to thelimit tooth 122 at the first end of thesecond tooth portion 121 , thefirst transmission member 118 cannot continue to move, and thejaw assembly 6 is at the first rotation position. When thefirst transmission member 118 moves to thelimit tooth 122 at the second end of thesecond tooth portion 121 , thefirst transmission member 118 cannot continue to move, and thejaw assembly 6 is at the second rotation position.
操作元件108能够驱动钳口组件6转动至第一转动位置，也能够驱动钳口组件6转动至第二转动位置，并能够驱动钳口组件6在第一转动位置与第二转动位置之间转动。由于锁定件110的多个凹陷部111沿操作元件108的第二运动的转动轨迹设置，因此，操作元件108能够在转动了预设角度后做第三运动以选择性的容置于与该预设角度对应的一个凹陷部111中，而使操作元件108切换为锁定状态，从而使钳口组件6稳定的保持于第一转动位置或第二转动位置或第一转动位置与第二转动位置之间的一处位置。换言之，钳口组件6能够相对杆身组件1转动多个角度并能够稳定的保持于其转动角度，由此使得施夹钳的使用更加灵活。第一转动位置与第二转动位置均是以杆身组件1作为参照，是钳口组件6相对于杆身组件1的位置。Theoperating element 108 can drive thejaw assembly 6 to rotate to the first rotation position, and can also drive thejaw assembly 6 to rotate to the second rotation position, and can drive thejaw assembly 6 to rotate between the first rotation position and the second rotation position . Since the plurality of recessedportions 111 of the lockingmember 110 are arranged along the second movement track of theoperation element 108, theoperation element 108 can perform a third movement after being rotated by a preset angle to be selectively accommodated in accordance with the preset angle. Set aconcave portion 111 corresponding to the angle, so that theoperating element 108 is switched to the locked state, so that thejaw assembly 6 is stably maintained at the first rotation position or the second rotation position or between the first rotation position and the second rotation position a location in between. In other words, thejaw assembly 6 can rotate at multiple angles relative to theshaft assembly 1 and can be stably maintained at the rotation angle, thereby making the use of the clip applier more flexible. Both the first rotation position and the second rotation position take theshaft assembly 1 as a reference, and are the positions of thejaw assembly 6 relative to theshaft assembly 1 .
参考图34-35，本实施例中外管25包括套管26和闭合管27，套管26套设于主轴3，闭合管27套设于夹仓8和转动件58。套管26的近端与第二驱动件的座体29连接，套管26的远端与闭合管27的近端枢转连接，闭合管27的远端与钳口组件6配合。套管26能够向近端或远端移动，使得闭合管27向近端或远端移动，进而使钳口组件6打开或闭合。具体的，钳口组件6包括第一钳臂115和第二钳臂116，参考图32，在第一钳臂115与第二钳臂116之间设置有第六弹簧117。当闭合管27向远端（即向前）移动时，钳口组件6从闭合管27的远端被收容于闭合管27内，此时第六弹簧117被压缩而储存能量，钳口组件6闭合。当闭合管27向近端（即向后）移动时，钳口组件6从闭合管27的远端伸出，第六弹簧117释放能量而使钳口组件6打开。Referring to FIGS. 34-35 , in this embodiment, theouter tube 25 includes asleeve 26 and a closingtube 27 , thesleeve 26 is sleeved on themain shaft 3 , and the closingtube 27 is sleeved on theclip chamber 8 and the rotatingmember 58 . The proximal end of thesleeve 26 is connected to theseat body 29 of the second driver, the distal end of thesleeve 26 is pivotally connected to the proximal end of the closingtube 27 , and the distal end of the closingtube 27 is matched with thejaw assembly 6 . Thesleeve 26 can move proximally or distally, so that theclosure tube 27 moves proximally or distally, thereby opening or closing thejaw assembly 6 . Specifically, thejaw assembly 6 includes afirst tong arm 115 and asecond tong arm 116 , referring to FIG. 32 , asixth spring 117 is disposed between thefirst tong arm 115 and thesecond tong arm 116 . When the closingtube 27 moves to the far end (i.e. forward), thejaw assembly 6 is accommodated in the closingtube 27 from the far end of the closingtube 27, and thesixth spring 117 is compressed to store energy, and thejaw assembly 6 closure. When the closingtube 27 moves proximally (ie backward), thejaw assembly 6 protrudes from the distal end of the closingtube 27 , and thesixth spring 117 releases energy to make thejaw assembly 6 open.
套管26与闭合管27枢转连接，且由于闭合管27套设于转动件58，从而当转动件58转动时，响应于转动件58施加于闭合管27的作用力，闭合管27相对套管26绕第二枢转轴线54转动。Thesleeve 26 is pivotally connected to the closingtube 27, and since the closingtube 27 is sleeved on the rotatingmember 58, when the rotatingmember 58 rotates, in response to the force applied by the rotatingmember 58 to the closingtube 27, the closingtube 27 is relatively sleeved. Thetube 26 rotates about thesecond pivot axis 54 .
钳口组件6包括一个打开到底的状态和一个完全闭合的状态。以图34中施夹钳的放置角度和方向为参照，钳口组件6处于打开到底的状态时，第一钳臂115与第二钳臂116的远端在上下方向的距离最大，钳口组件6处于完全闭合的状态时，第一钳臂115与第二钳臂116的远端在上下方向的距离最小。钳口组件6的完全闭合使得第一钳臂115与第二钳臂116之间的夹子59由打开状态转变为完全闭合状态以夹持于组织或血管。当钳口组件6处于打开到底的状态下和完全闭合的状态下，第一枢转轴线53与第二枢转轴线54重合。Thejaw assembly 6 includes a fully opened state and a fully closed state. Referring to the placement angle and direction of the clip applier in Figure 34, when thejaw assembly 6 is fully opened, the distance between the distal ends of thefirst tong arm 115 and thesecond tong arm 116 in the vertical direction is the largest, and thejaw assembly 6 In the fully closed state, the distance between the distal ends of thefirst pliers arm 115 and thesecond pliers arm 116 in the vertical direction is the smallest. The complete closing of thejaw assembly 6 makes theclip 59 between thefirst pliers arm 115 and thesecond pliers arm 116 change from an open state to a fully closed state for clamping on tissues or blood vessels. When thejaw assembly 6 is fully opened and fully closed, thefirst pivot axis 53 coincides with thesecond pivot axis 54 .
参考图1，施夹钳还包括旋转件132。旋转件132套设于套管26并与套管26固定连接。由此，通过转动旋转件132能够驱动套管26绕杆身组件1的第二纵长轴线2转动。当套管26向前或向后移动时，旋转件132也随套管26向前或向后移动。Referring to FIG. 1 , the clip applier also includes a rotatingmember 132 . The rotatingmember 132 is sleeved on thesleeve 26 and fixedly connected with thesleeve 26 . Thus, thesleeve 26 can be driven to rotate around the second longitudinal axis 2 of theshaft assembly 1 by rotating the rotatingmember 132 . When thesleeve 26 moves forward or backward, the rotatingmember 132 also moves forward or backward with thesleeve 26 .
参考图34-35，本实施例中套管26与闭合管27通过两个连接件125枢转连接，从而当套管26在旋转件132的驱动下绕杆身组件1的第二纵长轴线2转动时，套管26能够驱动闭合管27转动。即，通过转动旋转件132，使得套管26、两个连接件125以及闭合管27均转动。Referring to FIGS. 34-35 , in this embodiment, thesleeve 26 and the closingtube 27 are pivotally connected through two connectingpieces 125 , so that when thesleeve 26 is driven by the rotatingmember 132 around the second longitudinal axis of theshaft assembly 1 When rotating, thesleeve 26 can drive the closingtube 27 to rotate. That is, by turning the rotatingmember 132, thesleeve 26, the two connectingmembers 125 and the closingtube 27 are all rotated.
具体的，参考图36，每一个连接件125具有与主轴3适配的第一平面126，主轴3的远端具有与第一平面126相适配的第二平面127。由此，当旋转件132转动带动套管26转动而使每一个连接件125转动时，每一个第一平面126与其所对应的第二平面127形配合，使得主轴3跟随连接件125转动。即，当旋转件132转动而使每一个连接件125转动时，连接件125能够对主轴3产生作用力以驱动主轴3绕杆身组件1的第二纵长轴线2转动，由此，主轴3带动转动件58转动，使得闭合管27及钳口组件6转动，从而能够便于医生将钳口组件6调整到合适的角度后夹持血管或组织。钳口组件6相对杆身组件1绕第一枢转轴线53转动，能够使得钳口组件6的第一纵长轴线7与杆身组件1的第二纵长轴线2平行或呈角度。钳口组件6的第一纵长轴线7与杆身组件1的第二纵长轴线2平行或呈角度时，均能够通过转动旋转件132使得套管26转动，以及使连接件125转动以驱动主轴3转动，从而使闭合管27、转动件58、夹仓8、转向杆组件、送夹驱动机构、钳口驱动机构、钳口组件6均转动。Specifically, referring to FIG. 36 , each connectingpiece 125 has afirst plane 126 adapted to themain shaft 3 , and the distal end of themain shaft 3 has asecond plane 127 adapted to thefirst plane 126 . Thus, when the rotatingmember 132 rotates to drive thesleeve 26 to rotate to rotate each connectingmember 125 , eachfirst plane 126 forms a fit with its correspondingsecond plane 127 , so that themain shaft 3 rotates following the connectingmember 125 . That is, when the rotatingmember 132 rotates to rotate each connectingmember 125, the connectingmember 125 can generate a force on themain shaft 3 to drive themain shaft 3 to rotate around the second longitudinal axis 2 of theshaft assembly 1, thus, themain shaft 3 Drive the rotatingmember 58 to rotate, so that the closingtube 27 and thejaw assembly 6 rotate, so that it is convenient for the doctor to adjust thejaw assembly 6 to a suitable angle to clamp blood vessels or tissues. Rotation of thejaw assembly 6 relative to theshaft assembly 1 about thefirst pivot axis 53 enables the first longitudinal axis 7 of thejaw assembly 6 to be parallel or at an angle to the second longitudinal axis 2 of theshaft assembly 1 . When the first longitudinal axis 7 of thejaw assembly 6 is parallel to or at an angle to the second longitudinal axis 2 of theshaft assembly 1, thesleeve 26 can be rotated by rotating the rotatingmember 132, and the connectingmember 125 can be rotated to drive Themain shaft 3 rotates, so that theclosed pipe 27, therotating part 58, the clampingchamber 8, the steering rod assembly, the clamping driving mechanism, the jaw driving mechanism, and thejaw assembly 6 all rotate.
本实施例中，由于第一传动件118的限制，第二传动件120不能绕杆身组件1的第二纵长轴线2转动，为了适应主轴3的转动，本实施例第二传动件120通过连接套128与主轴3连接。具体的，参考图31-32，连接套128套设于主轴3。第二传动件120套设于连接套128。第二连杆124的近端与连接套128固定连接。第二连杆124设置于主轴3的第二容置槽，当主轴3绕杆身组件1的第二纵长轴线2转动时，驱动第二连杆124绕杆身组件1的第二纵长轴线2转动，从而第二连杆124驱动连接套128绕杆身组件1的第二纵长轴线2与主轴3同步转动，在连接套128绕杆身组件1的第二纵长轴线2转动的过程中，第二传动件120不发生转动，即，连接套128与第二传动件120之间具有相对转动。In this embodiment, due to the limitation of thefirst transmission member 118, thesecond transmission member 120 cannot rotate around the second longitudinal axis 2 of theshaft assembly 1. In order to adapt to the rotation of themain shaft 3, thesecond transmission member 120 of this embodiment passes The connectingsleeve 128 is connected with themain shaft 3 . Specifically, referring to FIGS. 31-32 , the connectingsleeve 128 is sleeved on themain shaft 3 . Thesecond transmission member 120 is sleeved on theconnection sleeve 128 . The proximal end of the second connectingrod 124 is fixedly connected with the connectingsleeve 128 . The second connectingrod 124 is arranged in the second accommodation groove of themain shaft 3, and when themain shaft 3 rotates around the second longitudinal axis 2 of theshaft assembly 1, the second connectingrod 124 is driven to rotate around the second longitudinal axis 2 of theshaft assembly 1. The axis 2 rotates, so that the second connectingrod 124 drives the connectingsleeve 128 to rotate synchronously with themain shaft 3 around the second longitudinal axis 2 of theshaft assembly 1. When the connectingsleeve 128 rotates around the second longitudinal axis 2 of theshaft assembly 1 During the process, thesecond transmission member 120 does not rotate, that is, there is relative rotation between the connectingsleeve 128 and thesecond transmission member 120 .
参考图37，连接套128的远端设置有第一止挡部129，连接套128的近端设置有第二止挡部130。第一止挡部129与第二止挡部130均是周向延伸。第二传动件120设置于第一止挡部129与第二止挡部130之间，由此，当第二传动件120产生向远端或者近端的位移时，第二传动件120能够作用于第一止挡部129或第二止挡部130，使得连接套128向远端或近端移动，以使第二连杆124向远端或近端移动。Referring to FIG. 37 , the distal end of theconnection sleeve 128 is provided with afirst stop portion 129 , and the proximal end of theconnection sleeve 128 is provided with asecond stop portion 130 . Both thefirst stop portion 129 and thesecond stop portion 130 extend circumferentially. Thesecond transmission member 120 is arranged between thefirst stop portion 129 and thesecond stop portion 130, thus, when thesecond transmission member 120 is displaced to the distal end or the proximal end, thesecond transmission member 120 can act. At thefirst stop portion 129 or thesecond stop portion 130 , the connectingsleeve 128 is moved to the distal end or the proximal end, so that thesecond link 124 is moved to the distal end or the proximal end.
参考图1，施夹钳还包括鲁尔接头131，鲁尔接头131与旋转件132连接。本实施例鲁尔接头131为现有技术中常见的鲁尔接头，目的是使施夹钳的内部与外部连通以便于清洁施夹钳的内部，鲁尔接头131的结构在此不再赘述。Referring to FIG. 1 , the clip applier further includes aLuer connector 131 connected to a rotatingmember 132 . TheLuer connector 131 in this embodiment is a common Luer connector in the prior art, the purpose is to connect the inside of the clip applier with the outside so as to clean the inside of the clip applier, and the structure of theLuer connector 131 will not be repeated here.
套管26具有冲洗孔，冲洗孔与套管26的内部连通。鲁尔接头131具有冲洗通道。冲洗通道具有进液口和出液口。冲洗通道的出液口与套管26的冲洗孔连通，向鲁尔接头131的进液口注入冲洗液，冲洗液能够通过冲洗通道和冲洗孔进入施夹钳的内部以便于对施夹钳的内部进行清洁而去除污染物，使得施夹钳能够重复使用。当套管26向前或向后移动时，旋转件132也随套管26向前或向后移动，因此鲁尔接头131也随之向前或向后移动，由此，能够避免鲁尔接头131限制套管26的前、后移动，并使得鲁尔接头131始终能够与套管26的冲洗孔连通。本实施例中套管26的冲洗孔设置于旋转件132的内部。鲁尔接头131的冲洗通道的进液口位于旋转件132的外部，冲洗通道的出液口位于旋转件132的内部并与套管26的冲洗孔连通。Thesleeve 26 has a flushing hole that communicates with the inside of thesleeve 26 .Luer connector 131 has an irrigation channel. The flushing channel has a liquid inlet and a liquid outlet. The liquid outlet of the flushing channel is communicated with the flushing hole of thesleeve 26, and the flushing liquid is injected into the liquid inlet of theLuer connector 131, and the flushing liquid can enter the inside of the clip applier through the flushing channel and the flushing hole so as to facilitate the clamp applicator. The interior is cleaned to remove contamination, allowing the clip applier to be reused. When thesleeve 26 moves forward or backward, the rotatingmember 132 also moves forward or backward with thesleeve 26, so theLuer connector 131 also moves forward or backward accordingly, thereby avoiding the risk of theLuer connector 131 restricts the forward and backward movement of thecannula 26 and enables theLuer connector 131 to always communicate with the irrigation hole of thecannula 26 . In this embodiment, the flushing hole of thesleeve 26 is disposed inside the rotatingmember 132 . The liquid inlet of the flushing channel of theLuer connector 131 is located outside the rotatingmember 132 , and the liquid outlet of the flushing channel is located inside the rotatingmember 132 and communicates with the flushing hole of thesleeve 26 .
本实施例中，钳口组件6与夹仓8的第二腔体10的出口12连通，第二腔体10与杆身组件1不同轴，因此钳口组件6与杆身组件1也是不同轴的，钳口组件6相对于杆身组件1是偏置设置的，因此钳口组件6的第一纵长轴线7与杆身组件1的第二纵长轴线2不存在重合的情况。In this embodiment, thejaw assembly 6 is in communication with theoutlet 12 of thesecond cavity 10 of theclip bin 8, and thesecond cavity 10 is not coaxial with theshaft assembly 1, so thejaw assembly 6 and theshaft assembly 1 are also incompatible. Coaxial, thejaw assembly 6 is offset relative to theshaft assembly 1 , so the first longitudinal axis 7 of thejaw assembly 6 does not coincide with the second longitudinal axis 2 of theshaft assembly 1 .
综上，本实施方式中的施夹钳，设置了送夹驱动机构用于执行送夹动作，设置了钳口驱动机构用于执行钳口闭合动作，取消了推夹动作，降低了送夹过程出现故障的几率，提高了送夹动作的稳定性。To sum up, the clip applier in this embodiment is provided with a clip feeding drive mechanism for performing the clip feeding action, and a jaw driving mechanism is provided for performing the jaw closing action, which cancels the clamp pushing action and reduces the clip feeding process. The probability of failure has improved the stability of the clamping action.
本实施方式中的施夹钳，其送夹驱动机构与钳口驱动机构的运动独立且分时进行，能够防止因二者联动而带来的一些问题，如结构复杂，运动关系复杂等。In the clip applier in this embodiment, the movement of the clip feeding drive mechanism and the jaw drive mechanism are independent and time-sharing, which can prevent some problems caused by the linkage of the two, such as complex structure and complex motion relationship.
本实施方式中的施夹钳，当钳口组件6闭合时，切换机构与传动组件之间沿杆身组件1的第二纵长轴线2方向具有预设距离，使得切换机构向远端移动时，始终不会与传动组件接触，传动组件的设置不会阻碍切换机构的运动，切换机构的运动与传动组件运动能够互相不产生干涉。In the clip applier in this embodiment, when thejaw assembly 6 is closed, there is a preset distance between the switching mechanism and the transmission assembly along the second longitudinal axis 2 of theshaft assembly 1, so that when the switching mechanism moves to the distal end , will never be in contact with the transmission assembly, the transmission assembly will not hinder the movement of the switching mechanism, and the movement of the switching mechanism and the movement of the transmission assembly will not interfere with each other.
应当理解，虽然本说明书按照实施方式加以描述，但并非每个实施方式仅包含一个独立的技术方案，说明书的这种叙述方式仅仅是为清楚起见，本领域技术人员应当将说明书作为一个整体，各实施方式中的技术方案也可以经适当组合，形成本领域技术人员可以理解的其他实施方式。It should be understood that although this description is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the description is only for clarity, and those skilled in the art should take the description as a whole, and each The technical solutions in the embodiments can also be properly combined to form other embodiments that can be understood by those skilled in the art.
上文所列出的一系列的详细说明仅仅是针对本发明的可行性实施方式的具体说明，它们并非用以限制本发明的保护范围，凡未脱离本发明技艺精神所作的等效实施方式或变更均应包含在本发明的保护范围之内。The series of detailed descriptions listed above are only specific descriptions for feasible implementations of the present invention, and they are not intended to limit the protection scope of the present invention. Any equivalent implementation or implementation that does not depart from the technical spirit of the present invention All changes should be included within the protection scope of the present invention.
