技术领域technical field
本发明涉及外科器械技术领域，特别是涉及一种外科器械。The invention relates to the technical field of surgical instruments, in particular to a surgical instrument.
背景技术Background technique
外科切割吻合器是医学上常用的一种替代手工缝合的器械，主要工作原理是利用切割刀对组织进行离断和利用钛钉对组织进行吻合，类似于订书机。根据适用于不同的身体部位可分为多种吻合器，对于外科切割吻合器，其工作原理是通过在手术部位精确定位的穿刺器的套管进入患者体内，继而在组织中制造纵向切口和在切口的相对侧施加吻合钉，从而对组织进行离断和吻合。Surgical cutting stapler is an instrument commonly used in medicine to replace manual suturing. The main working principle is to use a cutting knife to separate tissues and use titanium nails to anastomose tissues, similar to a stapler. According to different parts of the body, it can be divided into many kinds of staplers. For surgical cutting staplers, its working principle is to enter the patient's body through the cannula of the puncture device precisely positioned at the surgical site, and then make a longitudinal incision in the tissue and place it in the patient's body. Staples are applied to opposite sides of the incision, thereby separating and stapling the tissue.
外科器械包括钳口组件、切割刀组件和操作组件，操作组件与钳口组件和切割刀组件连接，在进行手术时，医护人员对操作组件进行操作，首先使钳口组件闭合对患者组织进行压榨，切割刀组件能够进刀切割组织，同时击发钉仓中的吻合钉缝合。操作组件一般设置有两个手柄，分别控制钳口闭合和切割刀进刀，但结构复杂，操作繁琐。The surgical instrument includes a jaw assembly, a cutting knife assembly, and an operating assembly. The operating assembly is connected to the jaw assembly and the cutting knife assembly. During the operation, the medical staff operates the operating assembly, and first closes the jaw assembly to squeeze the patient's tissue , the cutting knife assembly can advance the knife to cut the tissue, and at the same time fire the staples in the staple cartridge for suturing. The operating component is generally provided with two handles, which respectively control the closing of the jaws and the feeding of the cutting knife, but the structure is complex and the operation is cumbersome.
现有技术中存在单个手柄能够控制钳口闭合和切割刀进刀的吻合器，包括手柄、凸轮、连杆、齿条和棘轮组件，手柄连接凸轮，手柄在第一次致动前，棘轮组件与手柄、棘轮组件与齿条均分离，手柄进行第一次致动时，凸轮转动驱动连杆移动使钳口闭合，凸轮转动后被弹簧机构锁定，同时凸轮转动让位使棘轮组件移动，移动后的棘轮组件同时与手柄及齿条啮合，使手柄能够在后续致动时驱动钳口齿条，进而驱动切割刀。凸轮通过弹簧组件锁定结构复杂，且锁定稳定性差，容易出现锁定失误，造成钳口重新张开的情况。In the prior art, there is a stapler with a single handle that can control the closing of the jaws and the feeding of the cutting knife, including a handle, a cam, a connecting rod, a rack and a ratchet assembly, the handle is connected to the cam, and before the handle is activated for the first time, the ratchet assembly It is separated from the handle, the ratchet assembly and the rack. When the handle is actuated for the first time, the cam rotates to drive the connecting rod to move to close the jaws. After the cam rotates, it is locked by the spring mechanism. The rear ratchet assembly simultaneously engages the handle and the rack, enabling the handle to drive the jaw rack and thus the cutting knife upon subsequent actuation. The locking structure of the cam through the spring assembly is complex, and the locking stability is poor, and it is prone to locking errors, resulting in the situation that the jaws re-open.
发明内容Contents of the invention
针对现有技术的不足，本发明旨在提供一种外科器械，能够通过单手柄控制钳口闭合和切割刀进刀（击发），结构简单，操作方便，且锁定方便稳定。Aiming at the deficiencies of the prior art, the present invention aims to provide a surgical instrument that can control the closing of the jaws and the feeding (firing) of the cutting knife through a single handle, with simple structure, convenient operation, and convenient and stable locking.
本发明通过以下技术方案实现：包括：一种外科器械，包括：操作组件、与所述操作组件连接的钳口组件和切割刀组件，所述操作组件包括：The present invention is achieved through the following technical solutions: including: a surgical instrument, including: an operating assembly, a jaw assembly connected to the operating assembly, and a cutting knife assembly, and the operating assembly includes:
机架；frame;
手柄，可转动地连接于所述机架，其被操作以进行第一次致动和后续致动；a handle, rotatably connected to the frame, operated for first and subsequent actuations;
连杆组件，包括第一连杆和第二连杆，所述第一连杆与所述钳口组件连接，所述第二连杆一端可转动地连接于所述机架，另一端可转动地连接于所述第一连杆；响应于所述手柄的所述第一次致动，所述连杆组件从第一位置切换至第二位置以驱动所述钳口组件闭合；所述连杆组件位于所述第一位置时，所述第一连杆和所述第二连杆互成一角度，所述连杆组件位于所述第二位置时，所述第一连杆与所述第二连杆共线或大体共线，使所述连杆组件自锁于所述第二位置；The connecting rod assembly includes a first connecting rod and a second connecting rod, the first connecting rod is connected to the jaw assembly, one end of the second connecting rod is rotatably connected to the frame, and the other end is rotatable connected to the first linkage; in response to the first actuation of the handle, the linkage assembly switches from a first position to a second position to drive the jaw assembly closed; the linkage When the rod assembly is at the first position, the first connecting rod and the second connecting rod form an angle with each other; when the connecting rod assembly is at the second position, the first connecting rod and the second connecting rod the two links are collinear or substantially collinear, so that the link assembly is self-locking in the second position;
切割刀驱动件，与所述切割刀组件连接；A cutting knife driving member is connected with the cutting knife assembly;
配合件，连接于所述手柄；a fitting, connected to the handle;
限位件，所述连杆组件位于所述第一位置时，所述限位件限位所述配合件以使所述配合件与所述切割刀驱动件分离；所述连杆组件位于所述第二位置时，限位件解除对所述配合件的限位以使所述配合件能够与所述切割刀驱动件配合，响应于所述手柄的所述后续致动，所述配合件驱动所述切割刀驱动件运动，进而驱动所述切割刀组件。A limiting member, when the connecting rod assembly is located at the first position, the limiting member restricts the fitting so that the fitting is separated from the cutting knife driving member; the connecting rod assembly is located at the When the second position is reached, the limiting member releases the restriction on the fitting so that the fitting can cooperate with the cutting knife driving member, and in response to the subsequent actuation of the handle, the fitting Driving the cutting knife driving member to move, and then driving the cutting knife assembly.
进一步的，所述手柄设置有承托部；所述手柄通过所述承托部承托所述第一连杆或所述第二连杆以驱动所述连杆组件移动，使得所述连杆组件从所述第一位置切换至所述第二位置；所述连杆组件处于所述第二位置时，所述承托部在所述手柄进行所述后续致动时与所述连杆组件分离。Further, the handle is provided with a supporting portion; the handle supports the first connecting rod or the second connecting rod through the supporting portion to drive the connecting rod assembly to move, so that the connecting rod The assembly is switched from the first position to the second position; when the linkage assembly is in the second position, the support portion is in contact with the linkage assembly when the handle performs the subsequent actuation separate.
进一步的，所述限位件可运动地设于所述机架，所述限位件具有锁定位置和解锁位置；所述限位件在所述锁定位置限位所述配合件，以阻止所述配合件与所述切割刀驱动件配合；从所述第一位置切换至所述第二位置的过程中，所述连杆组件驱动所述限位件从所述锁定位置运动至所述解锁位置，所述连杆组件处于所述第二位置时所述限位件位于所述解锁位置；在所述解锁位置，所述限位件解除对所述配合件的限位，以使所述配合件能够与所述切割刀驱动件配合，响应于所述手柄的所述后续致动，所述配合件驱动所述切割刀驱动件运动，进而驱动所述切割刀组件。Further, the limiting member is movably arranged on the frame, and the limiting member has a locking position and an unlocking position; the limiting member limits the fitting in the locking position, so as to prevent all The matching part cooperates with the cutting knife driving part; in the process of switching from the first position to the second position, the linkage assembly drives the limiting part to move from the locking position to the unlocking position position, when the link assembly is in the second position, the limiting member is in the unlocking position; in the unlocking position, the limiting member releases the limiting of the fitting, so that A cooperating member is cooperable with the knife driver, and in response to the subsequent actuation of the handle, the cooperating member drives the movement of the knife driver, thereby driving the knife assembly.
进一步的，所述限位件处于所述锁定位置时抵压所述配合件，以限位所述配合件；所述限位件处于所述解锁位置时与所述配合件分离，以解除对所述配合件的限位，使所述配合件能够与所述切割刀驱动件配合。Further, when the limiting member is in the locking position, it presses against the fitting to limit the fitting; when the limiting member is in the unlocking position, it is separated from the fitting to release the pairing. The position limitation of the matching part enables the matching part to cooperate with the cutting knife driving part.
进一步的，所述限位件包括本体部、抵压部和凸起部，所述本体部可转动地连接于所述机架，所述抵压部连接于所述本体部，所述限位件处于所述锁定位置时，通过所述抵压部抵压所述配合件；所述凸起部设置于所述本体部，所述连杆组件驱动所述凸起部以驱动所述限位件从所述锁定位置切换至所述解锁位置。Further, the limiting member includes a main body part, a pressing part and a raised part, the main body part is rotatably connected to the frame, the pressing part is connected to the main body part, and the limiting part When the part is in the locking position, the fitting part is pressed by the pressing part; the protruding part is arranged on the body part, and the connecting rod assembly drives the protruding part to drive the position-limiting part switch from the locked position to the unlocked position.
进一步的，所述限位件设置于所述第一连杆或所述第二连杆，所述连杆组件从所述第一位置切换至所述第二位置的过程中，所述限位件随所述连杆组件移动，从锁定位置切换至解锁位置以解除对所述配合件的限位。Further, the limiter is arranged on the first link or the second link, and when the link assembly is switched from the first position to the second position, the limiter The part moves with the connecting rod assembly, and switches from the locking position to the unlocking position to release the restriction on the matching part.
进一步的，所述限位件包括主体部和阻挡部，所述主体部连接于所述第一连杆或第二连杆，所述阻挡部连接于所述主体部，并向所述配合件所在的方向凸起，所述阻挡部具有抵持面；所述限位件位于所述锁定位置时，所述抵持面抵持所述配合件以限位所述配合件；所述限位件从所述锁定位置切换至所述解锁位置的过程中，所述抵持面与所述配合件相对运动至所述配合件脱离所述抵持面，以解除对所述配合件的限位。Further, the limiting part includes a main body and a blocking part, the main body is connected to the first connecting rod or the second connecting rod, the blocking part is connected to the main body, and The direction in which it is located protrudes, and the blocking part has an abutment surface; when the limiter is at the locking position, the abutment surface abuts the fitting to limit the fitting; the limiter During the process of switching the fitting from the locking position to the unlocking position, the abutting surface moves relative to the fitting until the fitting is separated from the abutting surface, so as to release the restriction on the fitting .
进一步的，所述限位件包括止挡部，所述限位件处于所述锁定位置时，所述止挡部位于所述配合件与所述切割刀驱动件之间以限位所述配合件，将所述切割刀驱动件与所述配合件分离；所述限位件处于所述解锁位置时，所述止档部脱离所述配合件与所述切割刀驱动件之间以解除对所述配合件的限位，使所述配合件能够与所述切割刀驱动件配合。Further, the limiter includes a stopper, and when the limiter is in the locking position, the stopper is located between the matching member and the cutting knife driving member to limit the engagement part, separating the cutting knife driving part from the matching part; when the limiting part is in the unlocking position, the stop part is separated from the fitting part and the cutting knife driving part to release the pairing The position limitation of the matching part enables the matching part to cooperate with the cutting knife driving part.
进一步的，所述限位件位于所述锁定位置时，所述止挡部至少与所述配合件和所述切割刀驱动件中的所述配合件抵持。Further, when the limiting member is at the locking position, the stopper at least resists the matching member and the matching member of the cutting knife driving member.
进一步的，所述限位件还包括可运动地设置于所述机架的移动部，所述移动部与所述止挡部连接，所述连杆组件驱动所述钳口组件从打开位置运动至闭合位置的过程中，所述连杆组件驱动所述移动部运动，所述移动部带动所述止挡部位移以脱离所述配合件与所述切割刀驱动件之间。Further, the limiting member also includes a moving part movably arranged on the frame, the moving part is connected to the stop part, and the link assembly drives the jaw assembly to move from the open position In the process of reaching the closed position, the connecting rod assembly drives the moving part to move, and the moving part drives the stop part to displace so as to disengage from between the fitting part and the cutting knife driving part.
进一步的，所述移动部可滑动地设置于所述机架，所述移动部包括滑动部和导向部，所述滑动部与所述机架滑动连接，所述导向部连接于所述滑动部；所述连杆组件驱动所述钳口组件从打开位置运动至闭合位置的过程中，所述连杆组件抵持并推动所述导向部，以驱动所述移动部运动。Further, the moving part is slidably arranged on the frame, the moving part includes a sliding part and a guide part, the sliding part is slidably connected to the frame, and the guide part is connected to the sliding part ; During the process that the link assembly drives the jaw assembly to move from the open position to the closed position, the link assembly resists and pushes the guide part to drive the moving part to move.
进一步的，所述配合件包括延伸凸起，所述连杆组件位于所述第一位置时，所述限位件作用于所述延伸凸起以限位所述配合部；所述连杆组件位于所述第二位置时，所述限位件与所述延伸凸起分离以解除对所述配合件的限位。Further, the fitting includes an extending protrusion, and when the connecting rod assembly is at the first position, the limiting member acts on the extending protrusion to limit the fitting portion; the connecting rod assembly When located at the second position, the limiting member is separated from the extending protrusion to release the limiting of the matching member.
进一步的，所述配合件可运动地连接于所述手柄，所述手柄与所述配合件之间设有弹性件，所述配合件在所述弹性件提供的弹力的作用下向所述切割刀驱动件运动。Further, the fitting part is movably connected to the handle, and an elastic part is provided between the handle and the fitting part, and the fitting part moves toward the cutting part under the action of the elastic force provided by the elastic part. The knife drive moves.
进一步的，所述切割刀驱动件为有齿件，所述配合件为棘爪，可转动地连接于所述手柄，所述弹性件为扭簧，所述配合件在所述扭簧提供的弹力的作用下向所述切割刀驱动件运动。Further, the driving part of the cutting knife is a toothed part, the matching part is a pawl, which is rotatably connected to the handle, the elastic part is a torsion spring, and the matching part is provided by the torsion spring. Under the action of elastic force, it moves toward the cutting knife driving part.
与现有技术相比，本发明的有益效果在于：本实施例中的外科器械仅设有一个手柄，手柄第一次致动使钳口组件闭合进行压榨，后续致动使切割刀进刀进行击发，整体结构简单，可靠性高，操作方便。同时连杆组件在驱动钳口组件闭合后能够自锁，使钳口组件锁定于闭合位置，外科器械整体结构简单，连杆组件锁定稳定，不易发生锁定失效的情况。Compared with the prior art, the beneficial effect of the present invention is that: the surgical instrument in this embodiment is provided with only one handle, the handle is actuated for the first time to close the jaw assembly for pressing, and subsequent actuation causes the cutting knife to advance Firing, the overall structure is simple, high reliability, easy to operate. At the same time, the connecting rod assembly can self-lock after driving the jaw assembly to close, so that the jaw assembly is locked in the closed position. The overall structure of the surgical instrument is simple, the locking of the connecting rod assembly is stable, and locking failure is unlikely to occur.
附图说明Description of drawings
图1是本发明第一实施方式的外科器械的结构示意图；Fig. 1 is the structural representation of the surgical instrument of the first embodiment of the present invention;
图2是本发明第一实施方式的外科器械在第一次致动前的结构示意图；Fig. 2 is a structural schematic diagram of the surgical instrument according to the first embodiment of the present invention before the first actuation;
图3是本发明第一实施方式的外科器械在第一次致动后的结构示意图；Fig. 3 is a structural schematic diagram of the surgical instrument according to the first embodiment of the present invention after the first actuation;
图4是本发明第一实施方式的另一种凸起部与连杆组件接触时的结构示意图；Fig. 4 is a structural schematic view of another protrusion in contact with the connecting rod assembly according to the first embodiment of the present invention;
图5是本发明第一实施方式的另一种凸起部在连杆组件处于第二位置时的结构示意图；Fig. 5 is a structural schematic diagram of another protrusion in the first embodiment of the present invention when the connecting rod assembly is in the second position;
图6是本发明第一实施方式的限位部处于锁定位置时的结构示意图；Fig. 6 is a schematic structural view of the limiting part in the locked position according to the first embodiment of the present invention;
图7是本发明第一实施方式的限位部处于解锁位置时的结构示意图；Fig. 7 is a schematic structural view of the limiting part in the unlocked position according to the first embodiment of the present invention;
图8是本发明第一实施方式的配合件的结构示意图；Fig. 8 is a schematic structural view of a fitting according to the first embodiment of the present invention;
图9是本发明第一实施方式的配合件与切割刀驱动件配合的结构示意图；Fig. 9 is a structural schematic view of the cooperation between the fitting and the cutting knife driving part according to the first embodiment of the present invention;
图10是本发明第一实施方式的手柄后续致动驱动切割刀组件的结构示意图；Fig. 10 is a schematic structural view of the subsequent actuation of the handle to drive the cutting knife assembly according to the first embodiment of the present invention;
图11是本发明第一实施方式的切割刀组件与切割刀驱动件的结构示意图；Fig. 11 is a schematic structural view of the cutting knife assembly and the cutting knife driving member according to the first embodiment of the present invention;
图12是本发明第一实施方式的棘爪与手柄的结构示意图；Fig. 12 is a schematic structural view of the pawl and the handle according to the first embodiment of the present invention;
图13是本发明第一实施方式的棘爪未与切割刀驱动件啮合的结构示意图；Fig. 13 is a structural schematic diagram of the first embodiment of the present invention where the pawl is not engaged with the cutting knife driving member;
图14是本发明第二实施方式的限位件的结构示意图；Fig. 14 is a schematic structural view of a limiting member according to a second embodiment of the present invention;
图15是本发明第二实施方式的限位件另一个角度的结构示意图；Fig. 15 is a structural schematic diagram of another angle of the limiting member according to the second embodiment of the present invention;
图16是本发明第二实施方式的限位件位于锁定位置时的结构示意图；Fig. 16 is a schematic structural view of the limiting member in the locked position according to the second embodiment of the present invention;
图17是本发明第二实施方式的限位件位于锁定位置时，外科器械的剖视图；Fig. 17 is a sectional view of the surgical instrument when the limiting member is in the locked position according to the second embodiment of the present invention;
图18是本发明第二实施方式的限位件向解锁位置运动时的结构示意图；Fig. 18 is a schematic structural view of the limiting member moving to the unlocked position according to the second embodiment of the present invention;
图19是本发明第二实施方式的限位件位于解锁位置时的结构示意图；Fig. 19 is a schematic structural view of the limiting member in the unlocked position according to the second embodiment of the present invention;
图20是本发明第二实施方式的限位件位于解锁位置时，外科器械的剖视图；Fig. 20 is a cross-sectional view of the surgical instrument when the limiting member is in the unlocked position according to the second embodiment of the present invention;
图21是本发明第三实施例的限位件的结构示意图；Fig. 21 is a schematic structural view of a limiting member according to a third embodiment of the present invention;
图22是本发明第三实施方式的限位件位于锁定位置时，外科器械的结构示意图；Fig. 22 is a schematic structural view of the surgical instrument when the limiting member is in the locked position according to the third embodiment of the present invention;
图23是本发明第三实施方式的限位件向解锁位置切换时的结构示意图；Fig. 23 is a schematic structural view of the position-limiting member switching to the unlocked position according to the third embodiment of the present invention;
图24是本发明第三实施方式的限位件位于解锁位置时，外科器械的结构示意图。Fig. 24 is a schematic structural view of the surgical instrument when the limiting member is in the unlocked position according to the third embodiment of the present invention.
其中：in:
100、手柄；110、承托部；100, handle; 110, supporting part;
200、闭合机构；211、连杆组件；212、第一连杆；213、第二连杆；220、杆身组件；221、外套管；222、内套管；200, closing mechanism; 211, connecting rod assembly; 212, first connecting rod; 213, second connecting rod; 220, shaft assembly; 221, outer sleeve; 222, inner sleeve;
300、钳口组件；310、钉仓座；320、抵钉座；300, jaw assembly; 310, nail bin seat; 320, nail abutment seat;
400、操作组件；410、机架；420、滑动轴；400, operating components; 410, frame; 420, sliding shaft;
500、切割刀组件；500. Cutter assembly;
600、切割刀驱动件；610、配合件；611、棘爪；612、延伸凸起；620、弹性件；600, cutting knife driving part; 610, matching part; 611, pawl; 612, extending protrusion; 620, elastic part;
700、限位件；710、主体部；720、抵压部；730、凸起部；740、止挡部；750、移动部；751、滑动部；752、导向部；761、导向斜面；762、配合斜面；770、弹簧；780、螺钉；700, limiter; 710, main body; 720, pressing part; 730, raised part; 740, stop part; 750, moving part; 751, sliding part; 752, guiding part; 761, guiding slope; 762 , with the slope; 770, spring; 780, screw;
实施方式Implementation
为了使本发明的目的、技术方案及优点更加清楚明白，以下接合附图及实施例，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 purpose, technical solution and advantages of the present invention more clear, 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”是相对于操纵吻合器的手柄的临床医生而言的。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的一端，远侧端则表示相对靠近钳口组件的一端。术语“上”“下”以钳口组件的抵钉座 和钉仓座的相对位置为参考，具体的，抵钉座在“上”，钉仓座在“下”。然而，吻合器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" as used herein are relative to the clinician manipulating the handle of the stapler. 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 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, and the distal end means the end relatively close to the jaw assembly. The terms "upper" and "lower" refer to the relative positions of the nail abutment seat and the staple cartridge seat of the jaw assembly, specifically, the nail anvil seat is "upper" and the staple cartridge seat is "lower". However, staplers 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.
本申请涉及一种外科器械，可以为吻合器，包括操作组件和与操作组件连接的钳口组件和切割刀组件，操作组件包括闭合机构、手柄、切割刀驱动件、配合件和限位件，其中闭合机构与钳口组件连接，切割刀驱动件与切割刀组件连接，配合件连接于手柄且用于与切割刀驱动件配合。手柄可被操作以进行第一次致动和后续致动，手柄的第一次致动会使闭合机构驱动钳口组件从打开位置切换至闭合位置，后续致动在第一次致动后进行，在后续致动时，驱动切割刀组件前进以进行击发。The present application relates to a surgical instrument, which may be a stapler, including an operating assembly, a jaw assembly connected to the operating assembly, and a cutting knife assembly. The operating assembly includes a closing mechanism, a handle, a cutting knife driving element, a fitting, and a limiting element. Wherein the closing mechanism is connected with the jaw assembly, the cutting knife driving part is connected with the cutting knife assembly, and the matching part is connected with the handle and is used for cooperating with the cutting knife driving part. The handle is operable for a first actuation of the handle that causes the closing mechanism to drive the jaw assembly from an open position to a closed position, and subsequent actuation occurs after the first actuation , upon subsequent actuation, drives the cutter assembly forward for firing.
闭合机构包括连杆组件。连杆组件包括第一连杆和第二连杆，第一连杆与钳口组件连接，第二连杆一端可转动地连接于机架，另一端可转动地连接于第一连杆；响应于手柄的第一次致动，连杆组件从第一位置切换至第二位置以驱动钳口组件闭合；连杆组件位于第一位置时，第一连杆和第二连杆互成一角度，连杆组件位于第二位置时，第一连杆与第二连杆共线或大体共线，使连杆组件自锁于第二位置。The closure mechanism includes a linkage assembly. The link assembly includes a first link and a second link, the first link is connected to the jaw assembly, one end of the second link is rotatably connected to the frame, and the other end is rotatably connected to the first link; the response When the handle is actuated for the first time, the link assembly is switched from the first position to the second position to drive the jaw assembly to close; when the link assembly is in the first position, the first link and the second link form an angle, When the connecting rod assembly is at the second position, the first connecting rod and the second connecting rod are collinear or substantially collinear, so that the connecting rod assembly is self-locked at the second position.
共线指的是：第一连杆与第二连杆位于同一直线上，两者之间的夹角为180°。大体共线指的是：第一连杆和第二连杆越过死点位置，且第一连杆与第二连杆之间的夹角大于0°且小于5°，在连杆组件位于死点（对应于共线）或大体位于死点（对应于大体共线）时，第一连杆与第二连杆之间的压力角大体等于90°，第一连杆或第二连杆受到外力时，对另一连杆的力矩为零，使连杆组件无法运动，使连杆组件自锁于第二位置。从而使得钳口组件锁定于闭合位置。Collinear means that the first connecting rod and the second connecting rod are located on the same straight line, and the angle between them is 180°. Substantially collinear means: the first connecting rod and the second connecting rod cross the dead center position, and the angle between the first connecting rod and the second connecting rod is greater than 0° and less than 5°, when the connecting rod assembly is at the dead point point (corresponding to collinear) or roughly at the dead point (corresponding to roughly collinear), the pressure angle between the first connecting rod and the second connecting rod is roughly equal to 90°, and the first connecting rod or the second connecting rod is subjected to When an external force is applied, the moment to the other connecting rod is zero, so that the connecting rod assembly cannot move, and the connecting rod assembly is self-locked at the second position. Thereby locking the jaw assembly in the closed position.
限位件具有锁定位置和解锁位置，在锁定位置，限位件限位配合件以阻止配合件与切割刀驱动件的配合，限位是指：限位件对配合件施加作用力，阻止配合件与切割刀组件配合。在解锁位置，限位件解除对配合件的限位，具体为不再向配合件施加作用力，使配合件能够与切割刀组件配合。The limiter has a locked position and an unlocked position. In the locked position, the limiter restricts the fitting to prevent the fitting from fitting with the cutting knife driver. The limit means: the limiter exerts force on the fitting to prevent the fit The piece fits with the cutter assembly. In the unlocked position, the limiting member releases the limit on the fitting, specifically, no force is applied to the fitting so that the fitting can cooperate with the cutting knife assembly.
在进行第一致动前，钳口组件处于打开位置，限位件处于锁定位置，响应于手柄组件的第一次致动，闭合机构驱动钳口组件从打开位置切换至闭合位置并使钳口组件保持在闭合位置，即实现钳口组件的闭合并保持压榨；同时闭合机构驱动限位件从锁定位置切换至解锁位置，闭合机构使钳口组件保持在闭合位置时，限位件处于解锁位置，配合件能够与切割刀驱动件配合。Before the first actuation, the jaw assembly is in the open position and the limiter is in the locked position. In response to the first actuation of the handle assembly, the closing mechanism drives the jaw assembly to switch from the open position to the closed position and the jaws The assembly is kept in the closed position, that is, the jaw assembly is closed and pressed; at the same time, the closing mechanism drives the limiter to switch from the locked position to the unlocked position. When the closing mechanism keeps the jaw assembly in the closed position, the limiter is in the unlocked position , the matching part can cooperate with the cutting knife driving part.
值得注意的是，手柄第一次致动的过程中，限位件处于锁定位置，配合件未与切割刀驱动件配合，因此手柄的第一次致动仅能驱动钳口组件闭合，无法驱动切割刀进刀。第一次致动结束使限位件处于解锁位置，配合件能够与切割刀驱动件配合，手柄在后续致动时可以通过配合件和切割刀驱动件驱动切割刀组件进刀以进行击发。It is worth noting that during the first actuation of the handle, the limiter is in the locked position, and the fitting part is not engaged with the cutting knife driving part, so the first actuation of the handle can only drive the jaw assembly to close, and cannot drive The cutting knife enters the knife. After the first actuation, the stopper is in the unlocked position, and the matching part can cooperate with the cutting knife driving part, and the handle can drive the cutting knife assembly into the knife through the matching part and the cutting knife driving part during subsequent actuation for firing.
手柄进行后续致动时，通过配合件和切割刀驱动件驱动切割刀组件进刀以进行击发。同时，手柄不作用于闭合机构，钳口组件保持在闭合位置，限位件保持在解锁位置。During subsequent actuation of the handle, the cutting knife assembly is driven into the knife through the fitting and the cutting knife driver for firing. At the same time, the handle does not act on the closing mechanism, the jaw assembly remains in the closed position, and the limiter remains in the unlocked position.
本申请的外科器械仅设有一个手柄，手柄在第一次致动使钳口组件闭合进行压榨，后续致动使切割刀进刀进行击发，整体结构简洁，操作方便。The surgical instrument of the present application is provided with only one handle. The first actuation of the handle closes the jaw assembly for pressing, and the subsequent actuation causes the cutting knife to enter for firing. The overall structure is simple and easy to operate.
实施例Example
本实施例公开了一种外科器械，可以为吻合器，如图1和图11所示，包括操作组件400和与操作组件400连接的钳口组件300和切割刀组件500，钳口组件300包括钉仓座310和抵钉座320，钉仓座310内可拆卸地安装有钉仓组件（图中未示出），抵钉座320可转动地连接于钉仓座310，抵钉座320的转动使钳口组件300具有打开位置和闭合位置，响应于医护人员对操作组件400的操作，钳口组件300能够在打开位置与闭合位置之间切换，钳口组件300位于打开位置时，组织可以进入钳口组件300内，钳口组件300位于闭合位置时，能够压榨组织。在组织处于被压榨状态时，响应于医护人员对操作组件400的操作，切割刀组件500前进切割组织，且钉仓组件出钉缝合组织。This embodiment discloses a surgical instrument, which can be a stapler, as shown in Figures 1 and 11, including an operating assembly 400, a jaw assembly 300 connected to the operating assembly 400, and a cutting knife assembly 500, the jaw assembly 300 includes The nail cartridge seat 310 and the nail abutment seat 320, the nail cartridge assembly (not shown in the figure) is detachably installed in the nail cartridge seat 310, the nail abutment seat 320 is rotatably connected to the nail cartridge seat 310, the nail abutment seat 320 The rotation makes the jaw assembly 300 have an open position and a closed position, and the jaw assembly 300 can switch between the open position and the closed position in response to the operation of the operation assembly 400 by the medical personnel. When the jaw assembly 300 is in the open position, the tissue can Entering into the jaw assembly 300, when the jaw assembly 300 is in the closed position, it can squeeze tissue. When the tissue is in the squeezed state, in response to the operation of the operating assembly 400 by the medical personnel, the cutting knife assembly 500 advances to cut the tissue, and the staple cartridge assembly outputs staples to suture the tissue.
本实施例中，如图2和图3所示，操作组件400包括机架410、手柄100、闭合机构200、切割刀驱动件600、配合件610和限位件700。其中手柄100可转动的设置于机架410，手柄100与机架410之间设有弹性组件，具有初始位置和按压位置，医护人员可以通过按压手柄100使手柄100从初始位置运动至按压位置，松开手柄100时，手柄100在弹性组件的作用下能够从按压位置回弹至初始位置，手柄100从初始位置向按压位置运动的过程称为致动，在外科手术的过程中，手柄100被操作以进行多次致动，包括第一次致动和后续致动，后续致动为除第一次致动以外的其他次致动，其中第一次致动能够驱动钳口组件300切换至闭合位置压榨组织，后续致动能够驱动切割刀组件500前进以进行击发。In this embodiment, as shown in FIG. 2 and FIG. 3 , the operating assembly 400 includes a frame 410 , a handle 100 , a closing mechanism 200 , a cutting knife driving part 600 , a matching part 610 and a limiting part 700 . Wherein the handle 100 is rotatably arranged on the frame 410, and an elastic component is provided between the handle 100 and the frame 410, which has an initial position and a pressing position, and the medical staff can move the handle 100 from the initial position to the pressing position by pressing the handle 100, When the handle 100 is released, the handle 100 can rebound from the pressed position to the initial position under the action of the elastic component. The process of the handle 100 moving from the initial position to the pressed position is called actuation. During the surgical operation, the handle 100 is Operate to perform multiple actuations, including a first actuation and subsequent actuations, the subsequent actuations being actuations other than the first actuation, wherein the first actuation can drive the jaw assembly 300 to switch to The closed position compresses tissue and subsequent actuation can drive cutting blade assembly 500 forward for firing.
本实施例中，如图2所示，闭合机构200包括连杆组件211和杆身组件220，杆身组件220连接于钳口组件300，连杆组件211连接于杆身组件220，手柄100在进行第一次致动时，手柄100与连杆组件211可操作地接合，使手柄100能够驱动连杆组件211运动，连杆组件211在运动时能够带动杆身组件220运动，进而使钳口组件300从打开位置切换至闭合位置。具体的，杆身组件220包括内套管222和外套管221，外套管221环套于内套管222，且外套管221能够与内套管222相对移动，外套管221一端连接连杆组件211，另一端连接钳口组件300。响应于手柄100的第一次致动，连杆组件211从第一位置切换至第二位置以驱动外套管221移动，外套管221的移动使钳口组件300从打开位置切换至闭合位置。当手柄100切换至按压位置后，连杆组件211被锁定于第二位置，进而使外套管221位置锁定，钳口组件300保持在闭合位置。在手柄100从按压位置回弹至初始位置时，连杆组件211保持在第二位置不随手柄100运动，外套管221也保持在使钳口组件300位于闭合位置的位置。In this embodiment, as shown in FIG. 2 , the closing mechanism 200 includes a link assembly 211 and a shaft assembly 220, the shaft assembly 220 is connected to the jaw assembly 300, the link assembly 211 is connected to the shaft assembly 220, and the handle 100 is When the first actuation is performed, the handle 100 is operatively engaged with the link assembly 211, so that the handle 100 can drive the link assembly 211 to move, and the link assembly 211 can drive the shaft assembly 220 to move when it moves, thereby making the jaws move. Assembly 300 switches from an open position to a closed position. Specifically, the shaft assembly 220 includes an inner sleeve 222 and an outer sleeve 221. The outer sleeve 221 is looped around the inner sleeve 222, and the outer sleeve 221 can move relative to the inner sleeve 222. One end of the outer sleeve 221 is connected to the connecting rod assembly 211. , and the other end is connected to the jaw assembly 300 . In response to a first actuation of the handle 100, the linkage assembly 211 switches from the first position to the second position to drive the outer sleeve 221 to move, and the movement of the outer sleeve 221 switches the jaw assembly 300 from the open position to the closed position. When the handle 100 is switched to the pressing position, the link assembly 211 is locked at the second position, thereby locking the position of the outer sleeve 221 and keeping the jaw assembly 300 at the closed position. When the handle 100 rebounds from the pressed position to the initial position, the link assembly 211 remains at the second position and does not move with the handle 100, and the outer tube 221 also maintains the position where the jaw assembly 300 is located at the closed position.
连杆组件211包括第一连杆212和第二连杆213，第一连杆212可转动地连接于杆身组件220，具体为连接外套管221；第二连杆213一端可转动地连接于机架410，另一端可转动地与第一连杆212连接，形成一个二连杆机构。连杆组件211位于第一位置时，第一连杆212和第二连杆213互成一定角度，且第一连杆212和第二连杆213均向下侧（靠近手柄100握持部的一侧）倾斜。连杆组件211位于第一位置且手柄100未进行第一次致动时，手柄100与第一连杆212或第二连杆213接触，使手柄100能够驱动连杆组件211运动，其中第一连杆212远端可转动地连接外套管221，近端可转动地连接第二连杆213，第一连杆212与第二连杆213通过铰接点可转动地连接。连杆组件211从第一位置切换至第二位置过程中，铰接点逐渐向上侧（远离手柄100握持部的一侧）移动，由于第二连杆213的近端连接于机架410，因此位于第二连杆213远端的铰接点向远端移动，同时第一连杆212的转动使得第一连杆212的远端朝向远端移动，因此连杆组件211能够驱动外套管221向远端移动，以使钳口组件300闭合。The connecting rod assembly 211 includes a first connecting rod 212 and a second connecting rod 213. The first connecting rod 212 is rotatably connected to the shaft assembly 220, specifically the outer casing 221; one end of the second connecting rod 213 is rotatably connected to The other end of the frame 410 is rotatably connected to the first connecting rod 212 to form a two-link mechanism. When the connecting rod assembly 211 is at the first position, the first connecting rod 212 and the second connecting rod 213 form a certain angle with each other, and the first connecting rod 212 and the second connecting rod 213 are both downward (near the handle 100 grip part). side) tilted. When the connecting rod assembly 211 is in the first position and the handle 100 is not actuated for the first time, the handle 100 is in contact with the first connecting rod 212 or the second connecting rod 213, so that the handle 100 can drive the connecting rod assembly 211 to move, wherein the first The distal end of the connecting rod 212 is rotatably connected to the outer tube 221 , and the proximal end is rotatably connected to the second connecting rod 213 , and the first connecting rod 212 is rotatably connected to the second connecting rod 213 through a hinge point. During the switching process of the link assembly 211 from the first position to the second position, the hinge point gradually moves upward (the side away from the grip part of the handle 100). Since the proximal end of the second link 213 is connected to the frame 410, the The hinge point at the distal end of the second connecting rod 213 moves distally, while the rotation of the first connecting rod 212 causes the distal end of the first connecting rod 212 to move distally, so that the connecting rod assembly 211 can drive the outer sleeve 221 far away. The end moves to close the jaw assembly 300.
如图3所示，连杆组件211位于第二位置时，连杆组件211的第一连杆和第二连杆共线或大体共线，共线指的是：第一连杆212与第二连杆213位于同一直线上，两者之间的夹角为180°。大体共线指的是：第一连杆212和第二连杆213越过死点位置，且第一连杆212与第二连杆213之间的夹角大于0°且小于5°，在连杆组件211位于死点时，第一连杆212与第二连杆213之间的压力角大体等于90°，第一连杆212或第二连杆213受到外力时，对另一连杆的力矩为零，使连杆组件211无法运动，使连杆组件211自锁于第二位置。连杆组件211自锁于第二位置使得钳口组件300保持在闭合位置，连杆组件211的自锁无需操作且无需设置锁定结构，使得外科器械整体结构简单，连杆组件211锁定稳定，同时不易发生锁定失效的情况。As shown in FIG. 3 , when the connecting rod assembly 211 is in the second position, the first connecting rod and the second connecting rod of the connecting rod assembly 211 are collinear or substantially collinear, and collinear refers to: the first connecting rod 212 and the second connecting rod The two connecting rods 213 are located on the same straight line, and the angle between them is 180°. Substantially collinear means: the first connecting rod 212 and the second connecting rod 213 cross the dead center position, and the angle between the first connecting rod 212 and the second connecting rod 213 is greater than 0° and less than 5°. When the rod assembly 211 is at the dead point, the pressure angle between the first connecting rod 212 and the second connecting rod 213 is approximately equal to 90°. When the torque is zero, the connecting rod assembly 211 cannot move, and the connecting rod assembly 211 is self-locked at the second position. The link assembly 211 is self-locked in the second position so that the jaw assembly 300 remains in the closed position. The self-locking of the link assembly 211 does not require operation and no locking structure is required, so that the overall structure of the surgical instrument is simple, and the link assembly 211 is locked stably. It is not easy for the lock failure to occur.
响应于手柄100的第一次致动，连杆组件211驱动钳口组件300从打开位置切换至闭合位置，并使钳口组件300保持在闭合位置，以压榨组织，并使组织保持在被压榨的状态。在手柄100从按压位置回弹至初始位置时，连杆组件211不会随手柄100的释放回弹而运动，始终保持在使钳口组件300位于闭合位置的状态，手柄100在后续致动时，无法驱动连杆组件211运动，也无法改变钳口组件300位于闭合位置的状态。In response to the first actuation of the handle 100, the linkage assembly 211 drives the jaw assembly 300 to switch from the open position to the closed position and maintain the jaw assembly 300 in the closed position to compress the tissue and keep the tissue in the compressed position. status. When the handle 100 rebounds from the pressed position to the initial position, the link assembly 211 will not move with the release of the handle 100, and will always remain in the state where the jaw assembly 300 is in the closed position. When the handle 100 is actuated subsequently , the link assembly 211 cannot be driven to move, and the state of the jaw assembly 300 in the closed position cannot be changed.
如图11和图12所示，切割刀驱动件600连接切割刀组件500，配合件610连接于手柄100，配合件610与切割刀驱动件600配合时，能够在手柄100的带动下驱动切割刀驱动件600，进而驱动切割刀组件500。As shown in Figures 11 and 12, the cutting knife driver 600 is connected to the cutting knife assembly 500, and the fitting 610 is connected to the handle 100. When the fitting 610 cooperates with the cutting knife driving part 600, the cutting knife can be driven by the handle 100. The driving member 600 further drives the cutting knife assembly 500 .
限位件700在连杆组件211位于第一位置时，限位配合件610以使配合件610与切割刀驱动件600分离，故使得手柄100的第一次致动仅能驱动钳口组件300闭合，无法驱动切割刀组件500。在第一次致动完成，连杆组件211处于第二位置时，限位件700解除对配合件610的限位以使配合件610能够与切割刀驱动件600配合，配合件610能够与切割刀驱动件600配合是指：配合件610运动至与切割刀驱动件600配合的位置。一实施例中，配合件610自动运动以与切割刀驱动件600配合；When the connecting rod assembly 211 is in the first position, the limiter 700 limits the fitting 610 so that the fitting 610 is separated from the cutting knife driving member 600, so that the first actuation of the handle 100 can only drive the jaw assembly 300 Closed, the cutter assembly 500 cannot be driven. After the first actuation is completed and the connecting rod assembly 211 is in the second position, the limiter 700 releases the limit to the fitting 610 so that the fitting 610 can cooperate with the cutting knife driving member 600, and the fitting 610 can cooperate with the cutting blade. The matching of the knife driving part 600 means that the matching part 610 moves to the position where it cooperates with the cutting knife driving part 600 . In one embodiment, the matching part 610 automatically moves to cooperate with the cutting knife driving part 600;
本实施例中的外科器械，仅设有一个手柄100，单个手柄100可以实现压榨和击发的功能，手柄100在第一次致动时能够驱动钳口组件300闭合进行压榨，在后续致动时能够驱动切割刀组件500进行击发，使得外科器械结构和操作更加简单，质量更轻且成本更低，提升外科器械的稳定性和医护人员操作的便利性。The surgical instrument in this embodiment is provided with only one handle 100, and the single handle 100 can realize the functions of pressing and firing. When the handle 100 is actuated for the first time, it can drive the jaw assembly 300 to close for pressing. Being able to drive the cutter assembly 500 to fire, makes the structure and operation of the surgical instrument simpler, lighter in weight and lower in cost, and improves the stability of the surgical instrument and the convenience of operation by medical staff.
进一步的，手柄100设有承托部110，承托部110位于连杆组件211下侧，连杆组件211从第一位置切换至第二位置的过程中，手柄100通过承托部110承托第一连杆212或第二连杆213，以与连杆组件211可操作地接合。当连杆组件211处于第二位置后锁定于第二位置，手柄100在复位回弹时承托部110与连杆组件211分离，手柄100进行后续致动时，手柄100从初始位置切换至按压位置，承托部110随手柄100的运动而运动，承托部100仅在手柄100到达按压位置时（承托部100运动轨迹的终点）接触位于第二位置的连杆组件211，即承托部110在运动过程中与连杆组件211不接触，因此手柄100在后续致动时无法驱动连杆组件211。具体的承托部110为一杆体，手柄100通过承托部110抵持第二连杆213与连杆组件211可操作地接合，在第二连杆213转动的过程中，承托部110能够始终抵持第二连杆213。Further, the handle 100 is provided with a supporting part 110, and the supporting part 110 is located on the lower side of the connecting rod assembly 211. When the connecting rod assembly 211 is switched from the first position to the second position, the handle 100 is supported by the supporting part 110. The first link 212 or the second link 213 is operatively engaged with the link assembly 211 . When the connecting rod assembly 211 is locked in the second position after being in the second position, the supporting part 110 is separated from the connecting rod assembly 211 when the handle 100 returns and rebounds, and when the handle 100 performs subsequent actuation, the handle 100 switches from the initial position to the pressing position. position, the supporting part 110 moves with the movement of the handle 100, and the supporting part 100 only contacts the link assembly 211 at the second position when the handle 100 reaches the pressing position (the end point of the moving track of the supporting part 100), that is, the supporting part 100 The portion 110 does not contact the linkage assembly 211 during movement, so the handle 100 cannot drive the linkage assembly 211 upon subsequent actuation. Specifically, the supporting part 110 is a rod body. The handle 100 is operatively engaged with the connecting rod assembly 211 against the second connecting rod 213 through the supporting part 110. During the rotation of the second connecting rod 213, the supporting part 110 can Hold against the second connecting rod 213 all the time.
如图2和图3所示，限位件700具有锁定位置和解锁位置，图2中限位件700位于锁定位置时，对配合件610限位以阻挡配合件610与切割刀驱动件600配合。在手柄100进行第一次致动前，限位件700位于锁定位置，响应于手柄100第一次致动，连杆组件211驱动钳口组件300从打开位置切换至闭合位置的过程中，连杆组件211同时驱动限位件700从锁定位置切换至解锁位置，如图3所示，连杆组件211使钳口组件300保持在闭合位置，也使限位件700保持在解锁位置。在解锁位置，配合件610能够与切割刀驱动件600配合，手柄100在后续致动时，能够通过配合件610驱动切割刀驱动件600运动，进而驱动切割刀组件500前进以进行击发。As shown in FIGS. 2 and 3 , the limiting member 700 has a locked position and an unlocked position. When the limiting member 700 is in the locked position in FIG. . Before the handle 100 is actuated for the first time, the stopper 700 is at the locking position. In response to the first actuation of the handle 100, the link assembly 211 drives the jaw assembly 300 to switch from the open position to the closed position. The rod assembly 211 simultaneously drives the limiting member 700 to switch from the locking position to the unlocking position. As shown in FIG. 3 , the connecting rod assembly 211 keeps the jaw assembly 300 at the closed position and also keeps the limiting member 700 at the unlocking position. In the unlocked position, the matching part 610 can cooperate with the cutting knife driving part 600 , and when the handle 100 is activated subsequently, the cutting knife driving part 600 can be driven to move through the matching part 610 , and then the cutting knife assembly 500 can be driven forward for firing.
本实施例中，如图2所示，限位件700处于锁定位置时抵压配合件610以对配合件610施加作用力，进而限位配合件610，使配合件610处于无法与切割刀驱动件600配合的位置，阻挡配合件610与切割刀驱动件600的配合；当限位件700处于解锁位置时解除对配合件610的抵压，使配合件610能够与切割刀驱动件600配合。In this embodiment, as shown in FIG. 2 , when the limiter 700 is in the locked position, it presses against the fitting 610 to exert a force on the fitting 610, thereby limiting the fitting 610 so that the fitting 610 cannot be driven with the cutting knife. The matching position of the fitting 600 blocks the cooperation of the fitting 610 and the cutting knife driver 600;
限位件700可运动地设于机架410，通过运动从锁定位置切换至解锁位置。且限位件700因运动与配合件610分离，以解除对配合件610的抵压，使配合件610能够与切割刀驱动件600配合。具体的，本实施例中，限位件700可转动地设于机架410上，连杆组件211能够驱动限位件700转动，限位件700在转动的过程中保持对配合件610的抵压，直至限位件700转动至解锁位置，不再抵压配合件610，即限位件700不再对配合件610施加作用力，使配合件610能够与切割刀驱动件600配合，能够驱动切割刀组件500。The limiting member 700 is movably disposed on the frame 410, and is switched from a locked position to an unlocked position through movement. And the limiting part 700 is separated from the matching part 610 due to the movement, so as to release the pressure on the matching part 610 , so that the matching part 610 can cooperate with the cutting knife driving part 600 . Specifically, in this embodiment, the limiting member 700 is rotatably arranged on the frame 410, the link assembly 211 can drive the limiting member 700 to rotate, and the limiting member 700 maintains resistance to the matching member 610 during the rotation process. until the stopper 700 rotates to the unlocked position, and no longer presses against the fitting 610, that is, the stopper 700 no longer exerts force on the fitting 610, so that the fitting 610 can cooperate with the cutting knife driver 600 and can drive Cutter assembly 500.
其中限位件700整体大致呈长条型，包括本体部710和抵压部720，抵压部720连接于本体部710，优选的，抵压部720和本体部710一体设置，本体部710可转动地连接于机架410，抵压部720向配合件610所在的方向延伸，限位件700通过抵压部720抵压配合件610，以阻挡配合件610与切割刀驱动件600的配合。进一步的，限位件700还包括一弹力件（图中未示出），弹力件具体可以为扭簧，弹力件连接在本体与机架之间，弹力件向限位件700施加弹力，使限位件700保持在锁定位置，并为限位件700抵压配合件610提供抵压力，在限位件700被连杆组件211驱动向解锁位置运动时，弹力件压缩。同时弹力件使得手柄100在进行第一次致动前处于锁定位置。限位件700还包括凸起部730，凸起部730设置于本体部710。连杆组件211驱动钳口组件300从打开位置切换至闭合位置的过程中，作用于凸起部730，通过凸起部730带动限位件700转动，连杆组件211不与本体部710或抵压部720接触，以防止造成干涉。连杆组件211使钳口组件300保持在闭合位置时，仍抵持凸起部730，使限位件700保持在解锁位置。The limiter 700 is generally elongated as a whole, including a body portion 710 and a pressing portion 720. The pressing portion 720 is connected to the body portion 710. Preferably, the pressing portion 720 and the body portion 710 are integrated. The body portion 710 can be Rotatably connected to the frame 410 , the pressing part 720 extends toward the direction of the fitting part 610 , the limiting part 700 presses against the fitting part 610 through the pressing part 720 to block the matching part 610 and the cutting knife driving part 600 . Further, the limiting member 700 also includes an elastic member (not shown in the figure), the elastic member may specifically be a torsion spring, the elastic member is connected between the body and the frame, and the elastic member applies elastic force to the limiting member 700, so that The limiter 700 is kept at the locking position, and provides a resisting force for the limiter 700 to press against the fitting part 610 . When the limiter 700 is driven by the link assembly 211 to move toward the unlocking position, the elastic member is compressed. At the same time, the elastic member keeps the handle 100 in the locked position before the first actuation. The limiting member 700 further includes a protruding portion 730 disposed on the main body portion 710 . When the connecting rod assembly 211 drives the jaw assembly 300 to switch from the open position to the closed position, it acts on the raised portion 730 and drives the stopper 700 to rotate through the raised portion 730. The connecting rod assembly 211 does not contact the body portion 710 or The pressing portion 720 contacts to prevent interference. When the link assembly 211 keeps the jaw assembly 300 at the closed position, it still abuts against the protrusion 730 to keep the limiting member 700 at the unlocked position.
一实施例中，如图2和图3所示，凸起部730为一杆体，凸起设置于本体部710，使得限位件700在被连杆组件211推动转动时始终能够与连杆组件211抵持。另一实施例中，如图4至图5所示，凸起部730呈L型设置，包括两个侧边，两个侧边之间形成角部，凸起部730与连杆组件211接触时，首先通过L型凸起部730的角部接触连杆组件211，至限位件700处于解锁位置时，凸起部730通过一侧边与连杆组件211抵持，提升了与连杆组件211的接触面积，进而提升了保持在解锁位置的稳定性。In one embodiment, as shown in FIG. 2 and FIG. 3 , the protruding part 730 is a rod, and the protruding part is arranged on the body part 710, so that the stopper 700 can always be connected with the connecting rod assembly 211 when it is pushed to rotate by the connecting rod assembly 211. 211 against. In another embodiment, as shown in FIG. 4 to FIG. 5 , the protruding portion 730 is arranged in an L shape, including two sides, and a corner is formed between the two sides, and the protruding portion 730 is in contact with the connecting rod assembly 211 , first contact the connecting rod assembly 211 through the corner of the L-shaped protrusion 730, and when the stopper 700 is in the unlocked position, the protrusion 730 resists the connecting rod assembly 211 through one side, and the connection with the connecting rod is lifted. The contact area of the component 211 further enhances the stability in the unlocked position.
优选的，本实施例中限位件700处于解锁位置时，配合件610自动运动与切割刀驱动件600配合，如图11和图12所示，配合件610可运动地连接于手柄100，手柄100与配合件610之间设有弹性件620，配合件610在弹性件620提供的弹力的作用下向切割刀驱动件600运动，即弹性件620的弹力能够使配合件610向与切割刀驱动件600配合的方向运动。限位件700从锁定位置切换到解锁位置的过程中，结合图5和图6，在限位件700处于锁定位置时，抵压配合件610，弹性件620被压缩，配合件610无法与切割刀驱动件600配合。在限位件700处于解锁位置时，配合件610不再被抵压，在弹性件620的弹力的作用下，配合件610向与切割刀驱动件600配合的方向运动，即在限位件700切换至解锁位置时，配合件610在弹性件620的作用下自动回弹，与切割刀驱动件600配合。Preferably, in this embodiment, when the limiting member 700 is in the unlocked position, the matching member 610 automatically moves to cooperate with the cutting knife driving member 600, as shown in Figure 11 and Figure 12, the matching member 610 is movably connected to the handle 100, and the handle Elastic part 620 is arranged between 100 and fitting part 610, and fitting part 610 moves toward cutting knife driving part 600 under the elastic force provided by elastic part 620, namely the elastic force of elastic part 620 can make fitting part 610 drive toward cutting knife. The movement in the direction that the member 600 cooperates. In the process of switching the limiter 700 from the locked position to the unlocked position, referring to Figures 5 and 6, when the limiter 700 is in the locked position, the elastic member 610 is pressed against the fitting part 610, and the fitting part 610 cannot be cut. The knife driver 600 cooperates. When the limiting member 700 is in the unlocked position, the fitting 610 is no longer pressed, and under the action of the elastic force of the elastic member 620, the fitting 610 moves in the direction of matching with the cutting knife driving member 600, that is, when the limiting member 700 When switching to the unlocked position, the matching part 610 automatically rebounds under the action of the elastic part 620 and cooperates with the cutting knife driving part 600 .
具体的，本实施例中，如图8、图9和图12所示，配合件610包括棘爪611，切割刀驱动件600为有齿件，具体可以为齿条，配合件610与切割刀驱动件600配合时，为棘爪611与有齿件啮合。弹性件620为扭簧，扭簧一端抵持手柄100，另一端抵持棘爪611，扭簧所提供的弹力使棘爪611向与有齿件配合的位置转动。限位件700位于锁定位置时抵压棘爪611时，棘爪611无法与有齿件配合，扭簧被压缩。限位件700切换至解锁位置时解除对棘爪611的抵压，棘爪611在扭簧的作用下转动与有齿件配合。Specifically, in this embodiment, as shown in Fig. 8, Fig. 9 and Fig. 12, the fitting 610 includes a pawl 611, the cutting knife driving part 600 is a toothed part, specifically a rack, and the fitting 610 and the cutting knife When the driving part 600 is matched, the pawl 611 is engaged with the toothed part. The elastic member 620 is a torsion spring. One end of the torsion spring is against the handle 100 , and the other end is against the pawl 611 . The elastic force provided by the torsion spring makes the pawl 611 rotate to a position matched with the toothed part. When the limiting member 700 is at the locking position and presses against the pawl 611, the pawl 611 cannot cooperate with the toothed part, and the torsion spring is compressed. When the limiter 700 is switched to the unlocked position, the pressure on the ratchet 611 is released, and the ratchet 611 rotates under the action of the torsion spring to cooperate with the toothed member.
手柄100在后续致动时，能够通过自身的转动带动棘爪611运动，如图9和图10所示，手柄100通过铰接轴转动连接于机架410，棘爪611连接在手柄100顶端，手柄100在被按压时逆时针转动，使棘爪611向远端运动，从而驱动有齿件向远端位移，使切割刀组件500向远端运动以进行击发。手柄100进行后续致动时，以第二次致动为例，手柄100被按压时通过棘爪611驱动有齿件和切割刀组件500运动进行击发；手柄100被释放时顺时针转动回原位，棘爪611向近端位移，棘爪611仅能向远端单向驱动有齿件，棘爪611沿有齿件的表面向近端位移，而有齿件和切割刀组件500不发生移动，即手柄100被释放时，棘爪611退回原位，有齿件和切割刀组件500不移动，棘爪611仍与有齿件配合。进行第三次致动时，手柄100、棘爪611、有齿件和切割刀组件500的运动与第二次致动相同。可知本实施例中，手柄100在后续致动时，每一次致动会使切割刀组件500前进一定距离，多次致动可以完成切割刀组件500的全程击发。When the handle 100 is subsequently actuated, it can drive the movement of the pawl 611 through its own rotation. As shown in Figures 9 and 10, the handle 100 is connected to the frame 410 through a hinge shaft, and the pawl 611 is connected to the top of the handle 100. 100 rotates counterclockwise when depressed, causing pawl 611 to move distally, thereby driving the toothed member to displace distally, moving cutting knife assembly 500 distally for firing. When the handle 100 is actuated subsequently, take the second actuation as an example, when the handle 100 is pressed, the ratchet 611 drives the toothed part and the cutting knife assembly 500 to fire; when the handle 100 is released, it rotates clockwise back to its original position , the pawl 611 is displaced to the proximal end, the pawl 611 can only drive the toothed part to the far end in one direction, the pawl 611 is displaced to the proximal end along the surface of the toothed part, and the toothed part and the cutting knife assembly 500 do not move , that is, when the handle 100 is released, the pawl 611 returns to its original position, the toothed part and the cutting knife assembly 500 do not move, and the pawl 611 is still engaged with the toothed part. When the third actuation is performed, the movement of the handle 100, pawl 611, toothed member and cutter assembly 500 is the same as for the second actuation. It can be seen that in this embodiment, when the handle 100 is actuated subsequently, each actuation will cause the cutting knife assembly 500 to advance a certain distance, and multiple actuations can complete the full firing of the cutting knife assembly 500 .
另外值得注意的是，限位件700在解除对棘爪611的限位，棘爪611在弹性件620的作用下朝有齿件运动时，棘爪611有一定几率与有齿件啮合，也有一定几率仅与有齿件接触但处于非啮合状态。如图13所示，在棘爪611与有齿件接触但未啮合时，响应于手柄100的后续致动，棘爪611向远端运动，运动的棘爪611能够与有齿件啮合并驱动棘爪611运动。因此棘爪611能够稳定地驱动有齿件运动，进而驱动切割刀组件500运动。It is also worth noting that when the limit member 700 releases the limit to the ratchet 611 and the ratchet 611 moves toward the toothed part under the action of the elastic member 620, the ratchet 611 has a certain probability of meshing with the toothed part, and there is also a Chance to only be in contact with a toothed piece but not meshing. As shown in FIG. 13, when the pawl 611 is in contact with the toothed member but not engaged, in response to subsequent actuation of the handle 100, the pawl 611 moves distally, and the moving pawl 611 can engage and drive the toothed member. Pawl 611 movement. Therefore, the pawl 611 can stably drive the toothed part to move, and then drive the cutting knife assembly 500 to move.
进一步的，如图6和图8所示，配合件610还包括延伸凸起612（，延伸凸起612沿棘爪611的宽度方向延伸设置，限位件700抵压配合件610具体为抵压延伸凸起612，延伸凸起612的设置使限位件700与棘爪611位置错开，避免两者干涉。Further, as shown in FIG. 6 and FIG. 8 , the fitting 610 also includes an extension protrusion 612 (the extension protrusion 612 extends along the width direction of the pawl 611 , and the stopper 700 presses against the fitting 610 , specifically presses The extension protrusion 612, the setting of the extension protrusion 612 makes the positions of the limiting member 700 and the pawl 611 staggered, so as to avoid interference between the two.
由上可知，手柄100的第一次致动，即第一次从初始位置被操作至按压位置的过程中，使连杆组件211从第一位置切换至第二位置，连杆组件211的运动使杆身组件220位移使钳口组件300从打开位置切换至闭合位置；同时连杆组件211的运动驱动限位件700从锁定位置切换至解锁位置；而配合件610由于被限位件700抵压，无法与切割刀驱动件600配合，无法驱动切割刀组件500。即第一次致动使钳口组件300闭合，且切割刀组件500不运动。完成第一次致动后，松开手柄100，手柄100回弹至初始位置，连杆组件211锁定于第二位置，手柄100与连杆组件211分离，在后续致动时，手柄100再次从初始位置被操作至按压位置，手柄100与位于第二位置的连杆组件211分离，只有在手柄100运动路径的末端才会与连杆组件211接触，无法驱动连杆组件211运动。因此手柄100在后续致动时不会使连杆组件211的位置发生改变，连杆组件211保持在第二位置，限位件700保持在解锁位置。同时后续致动时配合件610与切割刀驱动件600配合，手柄100能够通过驱动配合件610运动，驱动切割刀驱动件600运动，进而驱动切割刀组件500进行击发。It can be seen from the above that the first actuation of the handle 100, that is, the process of being operated from the initial position to the pressing position for the first time, causes the link assembly 211 to switch from the first position to the second position, and the movement of the link assembly 211 Displacing the shaft assembly 220 causes the jaw assembly 300 to switch from the open position to the closed position; at the same time, the movement of the link assembly 211 drives the limiter 700 to switch from the locked position to the unlocked position; Press, can't cooperate with cutting knife driving part 600, can't drive cutting knife assembly 500. That is, the first actuation closes the jaw assembly 300 and the cutter assembly 500 does not move. After the first actuation is completed, the handle 100 is released, the handle 100 rebounds to the initial position, the link assembly 211 is locked in the second position, the handle 100 is separated from the link assembly 211, and in the subsequent actuation, the handle 100 is released from the second position again. The initial position is operated to the pressing position, the handle 100 is separated from the link assembly 211 at the second position, and only at the end of the movement path of the handle 100 will it contact the link assembly 211, and the link assembly 211 cannot be driven to move. Therefore, the handle 100 will not change the position of the link assembly 211 during subsequent actuation, the link assembly 211 remains at the second position, and the limiting member 700 remains at the unlocked position. At the same time, the matching part 610 cooperates with the cutting knife driving part 600 during subsequent actuation, and the handle 100 can drive the moving of the matching part 610 to drive the cutting knife driving part 600 to move, and then drive the cutting knife assembly 500 to fire.
手术结束后，首先通过退刀结构将切割刀组件500退回初始位置，然后开启钳口组件释放人体组织。闭合机构200还包括解锁组件（图中未示出），解锁组件用以解除连杆组件211在第二位置的锁定，解锁组件包括设于操作组件400的壳体外的操作部、位于操作组件壳体内抵持位于第二位置的连杆组件211的解锁部，解锁部与操作部联动，医护人员对操作部进行操作时，解锁部移动推动连杆组件211，使连杆组件211退回第一位置，钳口组件张开释放人体组织。具体的，操作部可以为设在操作组件400外壳上的按钮，解锁部设于操作组件400内，为沿上下方向延伸的杆体。按钮与杆体相连接。按钮未被操作时，杆体位于连杆组件211上方，连杆组件211自锁于第二位置；医护人员操作按钮时，使杆体向下移动以抵接推动连杆组件211，使连杆组件211不再处于第二位置，以解除连杆组件211的自锁状态，并且杆体进一步向下移动以推动连杆组件211切换至第一位置，进而使钳口组件300打开。其中，开启钳口组件300时手柄100位于初始位置，连杆组件211在杆体的作用下移动，在抵持手柄100的承托部110后停止，此时连杆组件211处于第一位置。钳口组件300处于打开状态时，连杆组件211处于第一位置，限位件700在弹力件的作用下回到锁定位置。After the operation is over, the cutting knife assembly 500 is first returned to the initial position through the knife retracting structure, and then the jaw assembly is opened to release the human tissue. The closing mechanism 200 also includes an unlocking assembly (not shown in the figure), which is used to release the locking of the link assembly 211 at the second position. The body is against the unlocking part of the link assembly 211 at the second position, and the unlocking part is linked with the operation part. When the medical personnel operate the operation part, the unlocking part moves and pushes the link assembly 211, so that the link assembly 211 returns to the first position , the jaw assembly opens to release the human tissue. Specifically, the operating part may be a button provided on the casing of the operating assembly 400, and the unlocking part is provided in the operating assembly 400 and is a rod extending in the up-down direction. The button is connected with the rod body. When the button is not operated, the rod body is located above the connecting rod assembly 211, and the connecting rod assembly 211 is self-locked in the second position; No longer in the second position, so as to release the self-locking state of the link assembly 211 , and the rod body further moves downwards to push the link assembly 211 to switch to the first position, thereby opening the jaw assembly 300 . Wherein, when the jaw assembly 300 is opened, the handle 100 is at the initial position, the link assembly 211 moves under the action of the rod body, and stops after abutting against the support portion 110 of the handle 100, and the link assembly 211 is at the first position at this time. When the jaw assembly 300 is in the open state, the link assembly 211 is in the first position, and the limiting member 700 returns to the locking position under the action of the elastic member.
本实施例中的外科器械，仅设有一个手柄100，手柄100第一次致动使钳口组件300闭合进行压榨，后续致动使切割刀进刀进行击发，整体结构简洁，操作方便。同时配合件610始终与手柄100连接，配合件610能够稳定地驱动切割刀驱动件600，使击发过程更加稳定。连杆组件211自锁使钳口组件300保持在闭合位置，无需操作且无需设置锁定结构，使得外科器械整体结构简单，连杆组件211锁定稳定，同时不易发生锁定失效的情况。The surgical instrument in this embodiment is provided with only one handle 100. The first actuation of the handle 100 makes the jaw assembly 300 close for pressing, and the subsequent actuation makes the cutting knife enter for firing. The overall structure is simple and easy to operate. At the same time, the matching part 610 is always connected with the handle 100, and the matching part 610 can stably drive the cutting knife driving part 600, so that the firing process is more stable. The link assembly 211 is self-locking to keep the jaw assembly 300 in the closed position without any operation or locking structure, so that the overall structure of the surgical instrument is simple, the link assembly 211 is locked stably, and at the same time, locking failure is not easy to occur.
实施例Example
本申请的第二实施例公开了一种外科器械，大体与第一实施例中的外科器械相同，主要区别在于：限位件700结构不同。The second embodiment of the present application discloses a surgical instrument, which is generally the same as the surgical instrument in the first embodiment, the main difference being that the structure of the limiting member 700 is different.
如图14至图20所示，本实施例中的限位件700包括止挡部740，限位件700处于锁定位置时，止挡部740位于配合件610与切割刀驱动件600之间，将切割刀驱动件600与配合件610隔开以限位配合件610，使配合件610与切割刀驱动件600无法配合。限位件700处于解锁位置时，止挡部740脱离配合件610与切割刀驱动件600之间以解除对配合件610的限位，使配合件610能够与切割刀驱动件600配合。As shown in FIG. 14 to FIG. 20 , the limiting member 700 in this embodiment includes a stopper 740. When the limiting member 700 is in the locked position, the stopper 740 is located between the matching member 610 and the cutting knife driving member 600. The cutting knife driving part 600 is separated from the fitting part 610 to limit the fitting part 610 so that the fitting part 610 cannot cooperate with the cutting knife driving part 600 . When the limiting part 700 is in the unlocked position, the stop part 740 is disengaged from between the fitting part 610 and the cutting knife driving part 600 to release the limit on the fitting part 610 , so that the fitting part 610 can cooperate with the cutting knife driving part 600 .
止挡部740在锁定位置时处于配合件610与切割刀驱动件600之间，能够稳定的阻挡配合件610与切割刀驱动件600配合。在第一次致动时，配合件610虽未与切割刀驱动件600配合，但仍在手柄100的驱动下移动，即配合件610相对于切割刀驱动件600滑移，配合件610在手柄的驱动下位移时，始终抵持于止挡部740，止挡部740在配合件610移动的方向上具有足够的长度，能够稳定的限位配合件610，阻止配合件610与切割刀驱动件配合。The stop portion 740 is located between the matching part 610 and the cutting knife driving part 600 when in the locked position, and can stably block the cooperation between the matching part 610 and the cutting knife driving part 600 . When actuating for the first time, although the fitting 610 is not matched with the cutting knife driver 600, it still moves under the drive of the handle 100, that is, the fitting 610 slides relative to the cutting knife driving part 600, and the fitting 610 moves on the handle. When shifting under the driving of the drive, it is always against the stopper 740. The stopper 740 has a sufficient length in the direction in which the fitting 610 moves, and can stably limit the fitting 610, preventing the fitting 610 from connecting with the cutting knife driver. Cooperate.
进一步的，限位件700位于锁定位置时，止挡部740至少与配合件610和切割刀驱动件600中的配合件610抵持。止挡部740至少与配合件610抵持的含义是：止挡部740只与配合件610抵持，或者，止挡部740同时与配合件610和切割刀驱动件600抵持。一实施例中，止挡部740的一侧（上侧）抵持切割刀驱动件600，配合件610在弹性件620的作用下抵持止挡部740的另一侧（下侧）。另一实施例中，止挡部740的上侧与切割刀驱动件600分离，下侧与配合件610抵持。Further, when the limiting member 700 is at the locked position, the stop portion 740 at least resists the matching member 610 and the matching member 610 of the cutting knife driving member 600 . The meaning that the stopper 740 resists at least the fitting 610 means that the stopper 740 only resists the fitting 610 , or the stopper 740 resists both the fitting 610 and the cutting knife driving member 600 . In one embodiment, one side (upper side) of the stop portion 740 is against the cutting knife driving member 600 , and the matching member 610 is against the other side (lower side) of the stop portion 740 under the action of the elastic member 620 . In another embodiment, the upper side of the stopping part 740 is separated from the cutting knife driving part 600 , and the lower side is against the matching part 610 .
限位件700还包括移动部750，移动部750可运动地设置于机架410，移动部750与止挡部740连接，能够带动止挡部740移动以使止挡部740脱离配合件610与切割刀驱动件600之间。在闭合机构200驱动钳口组件300从打开位置运动至闭合位置的过程中，闭合机构200驱动移动部750移动，进而驱动限位件700从锁定位置切换至解锁位置。具体为连杆组件211从第一位置切换至第二位置的过程中，连杆组件211驱动移动部750移动，移动部750带动止挡部740运动。The limiter 700 also includes a moving part 750, which is movably arranged on the frame 410. The moving part 750 is connected to the stop part 740, and can drive the stop part 740 to move so that the stop part 740 is separated from the fitting part 610 and Between the cutting knife driving member 600. When the closing mechanism 200 drives the jaw assembly 300 to move from the open position to the closed position, the closing mechanism 200 drives the moving part 750 to move, and then drives the limiting member 700 to switch from the locked position to the unlocked position. Specifically, when the link assembly 211 is switched from the first position to the second position, the link assembly 211 drives the moving part 750 to move, and the moving part 750 drives the stop part 740 to move.
移动部750可滑动地设置于机架410，如图17所示，移动部750包括滑动部751和导向部752，滑动部751与机架410滑动连接，导向部752连接于滑动部751，导向部752具有一导向斜面761，连杆组件211从第一位置切换至第二位置的过程中，连杆组件211抵持并推动导向部752以驱动移动部750运动，进而驱动止挡部740脱离配合件610与切割刀驱动件600之间。具体的，机架410设有一滑动轴420，滑动部751呈环形设置，环套于滑动轴420，滑动部751能够沿滑动轴420的轴向方向移动，移动部750还包括一弹簧770，弹簧770设在滑动部751远离止挡部740的一侧，并套设于滑动轴420，用于向滑动部751施加弹力。滑动轴420远离机架410的一端设置有螺钉780，螺钉780包括螺柱和螺帽781，螺柱旋入滑动轴420内与滑动轴420配合，螺帽781位于滑动轴420远离机架410的一侧，弹簧770一端抵持于螺帽781，另一端抵持于滑动部751。弹簧。导向部752位于移动部750下方，导向斜面761自上至下具有高侧和低侧，在前后方向上高侧位于低侧与止挡部740之间，连杆组件211从第一位置切换至第二位置的过程中逐渐上移，首先抵持导向斜面761的低侧，推动导向部752移动，至抵持导向斜面761的高侧，导向部752在被连杆组件211推动的过程中，带动滑动部751相对于滑动轴420向远离配合件610的方向运动，从而带动止挡部740运动以脱离配合件610与切割刀驱动件600之间，该过程中弹簧770被压缩。The moving part 750 is slidably arranged on the frame 410. As shown in FIG. The part 752 has a guide inclined surface 761. When the link assembly 211 switches from the first position to the second position, the link assembly 211 resists and pushes the guide part 752 to drive the moving part 750 to move, and then drives the stopper part 740 to disengage. Between the matching part 610 and the cutting knife driving part 600 . Specifically, the frame 410 is provided with a sliding shaft 420, the sliding part 751 is arranged in an annular shape, and is looped on the sliding shaft 420, the sliding part 751 can move along the axial direction of the sliding shaft 420, and the moving part 750 also includes a spring 770, the spring 770 is disposed on a side of the sliding portion 751 away from the stop portion 740 , and sleeved on the sliding shaft 420 for applying elastic force to the sliding portion 751 . The end of the sliding shaft 420 away from the frame 410 is provided with a screw 780, the screw 780 includes a stud and a nut 781, the stud is screwed into the sliding shaft 420 to cooperate with the sliding shaft 420, and the nut 781 is located at the end of the sliding shaft 420 away from the frame 410. On one side, one end of the spring 770 abuts against the nut 781 , and the other end abuts against the sliding portion 751 . spring. The guide part 752 is located below the moving part 750. The guide slope 761 has a high side and a low side from top to bottom. In the process of the second position, it gradually moves upwards, first against the low side of the guide slope 761, and pushes the guide part 752 to move until it touches the high side of the guide slope 761, and when the guide part 752 is pushed by the connecting rod assembly 211, The sliding part 751 is driven to move away from the fitting part 610 relative to the sliding shaft 420 , thereby driving the stopper part 740 to move to disengage between the fitting part 610 and the cutter driving part 600 , and the spring 770 is compressed during this process.
进一步的，连杆组件211中第一连杆212和/或第二连杆213设有配合斜面762，具体为在连杆组件211从第一位置切换至第二位置的过程中与导向部752接触的连杆设有配合斜面762，配合斜面762与导向斜面761的斜率大体一致，以更好的推动导向部752运动。Further, the first connecting rod 212 and/or the second connecting rod 213 in the connecting rod assembly 211 is provided with a mating inclined surface 762, specifically for connecting with the guide part 752 when the connecting rod assembly 211 is switched from the first position to the second position. The contacting connecting rod is provided with a matching slope 762 , and the slope of the matching slope 762 is substantially consistent with that of the guiding slope 761 , so as to better promote the movement of the guiding part 752 .
优选的一个实施例中，止挡部740呈片状设置，止挡部740的宽度大体与切割刀驱动件600的宽度相同，以覆盖切割刀驱动件600的表面，防止配合件610与切割刀驱动件600配合，同时节省了止挡部740的材料，便于限位件700运动。In a preferred embodiment, the stopper 740 is arranged in a sheet shape, and the width of the stopper 740 is substantially the same as the width of the cutter driver 600, so as to cover the surface of the cutter driver 600 and prevent the fitting 610 from colliding with the cutter. The driving part 600 cooperates, and at the same time, the material of the stop part 740 is saved, which facilitates the movement of the limiting part 700 .
实施例Example
本申请的第三实施例公开了一种外科器械，大体与第一实施例中的外科器械相同，主要区别在于：限位件700结构不同。The third embodiment of the present application discloses a surgical instrument, which is generally the same as the surgical instrument in the first embodiment, the main difference being that the structure of the limiting member 700 is different.
如图21至图24所示，本实施例中的限位件700设于第一连杆212或第二连杆213，连杆组件211从第一位置切换至第二位置的过程中，限位件700随连杆组件211移动，从锁定位置切换至解锁位置以解除对配合件610的限位。限位件700随连杆组件211移动而从锁定位置切换至解锁位置，位置切换更加稳定。As shown in Figures 21 to 24, the limiting member 700 in this embodiment is arranged on the first connecting rod 212 or the second connecting rod 213, and when the connecting rod assembly 211 is switched from the first position to the second position, the limit The positioning member 700 moves with the connecting rod assembly 211 , and switches from the locking position to the unlocking position to release the restriction on the matching member 610 . The limiting member 700 is switched from the locking position to the unlocking position as the link assembly 211 moves, and the position switching is more stable.
优选的，由于第二连杆213靠近配合件610，本实施例中限位件700为设在第二连杆213上的一杆体，并与第二连杆213互成一定角度，限位件700与第二连杆213互成一锐角，使限位件700倾斜设于第二连杆213。其中限位件700与第二连杆213部分错位设置，限位件700包括主体部770和阻挡部780，其中主体部770连接于第一连杆212或第二连杆213，且主体部770在竖直方向上的投影落在第一连杆212或第二连杆213上，阻挡部780与主体部770连接，优选为与主体部770一体成型，并向配合件610所在的方向凸起。配合件610在竖直方向上的投影不落在第一连杆212或第二连杆213上，以避免与运动的连杆组件210发生干涉。Preferably, since the second connecting rod 213 is close to the fitting 610, the limiting member 700 in this embodiment is a rod body arranged on the second connecting rod 213, and forms a certain angle with the second connecting rod 213, the limiting member 700 forms an acute angle with the second connecting rod 213 , so that the limiting member 700 is obliquely disposed on the second connecting rod 213 . Wherein the limiting member 700 and the second connecting rod 213 are partly dislocated, and the limiting member 700 includes a main body portion 770 and a blocking portion 780, wherein the main body portion 770 is connected to the first connecting rod 212 or the second connecting rod 213, and the main body portion 770 The projection in the vertical direction falls on the first connecting rod 212 or the second connecting rod 213, the blocking part 780 is connected with the main body part 770, preferably integrally formed with the main body part 770, and protrudes toward the direction where the fitting part 610 is located . The projection of the fitting part 610 in the vertical direction does not fall on the first connecting rod 212 or the second connecting rod 213 to avoid interference with the moving connecting rod assembly 210 .
限位件700整体形状为倾斜设置，其首端和尾端均呈平板状设置，阻挡部780具有抵持面781，抵持面781具体包括一斜面7811以及连接在斜面7811首端和尾端的两个平面7812。连杆组件211位于第一位置时，限位件700位于锁定位置，限位件700通过抵持面781抵持配合件610的延伸凸起612，具体为通过斜面7811抵持延伸凸起612，延伸凸起612呈柱状设置，能够沿着斜面7811运动，配合件610在弹性件620的作用下具有朝切割刀驱动件600方向（向首端）运动的趋势，连接在斜面7811首端的平面7812能够阻挡配合件610脱离抵持面781。The overall shape of the limiter 700 is inclined, and its head end and tail end are set in the shape of a flat plate. The blocking part 780 has an abutment surface 781, and the abutment surface 781 specifically includes an inclined surface 7811 and connected to the head end and tail end of the inclined surface 7811. Two planes 7812. When the connecting rod assembly 211 is at the first position, the limiting member 700 is at the locking position, and the limiting member 700 resists the extension protrusion 612 of the mating member 610 through the abutment surface 781 , specifically the extension protrusion 612 through the inclined surface 7811 , The extension protrusion 612 is columnar and can move along the inclined surface 7811. Under the action of the elastic member 620, the fitting part 610 has a tendency to move toward the cutting knife driving part 600 (towards the head end), and the plane 7812 connected to the head end of the inclined surface 7811 The fitting part 610 can be prevented from detaching from the abutting surface 781 .
连杆组件211从第一位置向第二位置运动的过程中，带动限位件700向上移动并转动，使配合件610的延伸凸起612与抵持面781相对运动，具体为延伸凸起612沿着斜面7811向尾端运动并脱离尾端的平面7812，该过程中弹性件620逐渐释放。在连杆组件211位于第二位置后，限位件700整体位于延伸凸起612上方，弹性件620被完全释放，配合件610与切割刀驱动件600配合，并与限位件700分离，限位件700不会阻挡配合件610后续驱动切割刀驱动件600。When the connecting rod assembly 211 moves from the first position to the second position, it drives the stopper 700 to move upward and rotate, so that the extension protrusion 612 of the matching member 610 moves relative to the abutment surface 781 , specifically the extension protrusion 612 The elastic member 620 is gradually released during the movement along the slope 7811 toward the tail end and away from the plane 7812 of the tail end. After the connecting rod assembly 211 is located at the second position, the limiting member 700 is located above the extension protrusion 612 as a whole, the elastic member 620 is completely released, the matching member 610 cooperates with the cutting knife driving member 600, and is separated from the limiting member 700, thereby limiting The position member 700 will not block the matching member 610 from subsequently driving the cutter driving member 600 .
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.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310101754.5ACN116549040A (en) | 2023-02-02 | 2023-02-02 | Surgical instrument |
| PCT/CN2024/073817WO2024160104A1 (en) | 2023-02-02 | 2024-01-24 | Surgical instrument |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310101754.5ACN116549040A (en) | 2023-02-02 | 2023-02-02 | Surgical instrument |
| Publication Number | Publication Date |
|---|---|
| CN116549040Atrue CN116549040A (en) | 2023-08-08 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310101754.5APendingCN116549040A (en) | 2023-02-02 | 2023-02-02 | Surgical instrument |
| Country | Link |
|---|---|
| CN (1) | CN116549040A (en) |
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| WO2024160104A1 (en)* | 2023-02-02 | 2024-08-08 | 江苏风和医疗器材股份有限公司 | Surgical instrument |
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