技术领域technical field
本实用新型涉及医疗器械技术领域，具体涉及一种击发机构及吻合器。The utility model relates to the technical field of medical instruments, in particular to a firing mechanism and a stapler.
背景技术Background technique
消化道疾病是人类高发的疾病之一，在治疗过程中，常使用吻合器代替医生的手工操作对消化道等生理组织进行吻合。直线型吻合器是一种常见的外科手术器械，大多采用线性装订方式，在手术时对食管、胃、肠道等生理组织吻合。Gastrointestinal diseases are one of the most common diseases in human beings. In the course of treatment, staplers are often used instead of doctors' manual operations to anastomose physiological tissues such as the digestive tract. A linear stapler is a common surgical instrument, most of which use a linear binding method to anastomose physiological tissues such as the esophagus, stomach, and intestinal tract during surgery.
直线型吻合器一般包括器械平台和可拆卸地安装于该平台的头部，头部可以通过穿刺器穿过身体上的小切口以接近手术部位实施手术。具体地，器械平台包括击发把手，可拆卸的头部包括一钉仓连接件和安装于钉仓连接件远端的钉头部，钉仓连接件的内部设置有击发组件，钉头部为实施切割和缝合动作的部分。在击发把手的驱动下，击发组件可以驱动钉头部完成缝切手术。A linear stapler generally includes an instrument platform and a head detachably mounted on the platform. The head can pass through a small incision on the body through a puncture device to approach the surgical site for surgery. Specifically, the instrument platform includes a firing handle, and the detachable head includes a staple cartridge connector and a nail head mounted on the far end of the staple cartridge connector. Parts of the cutting and sewing action. Driven by the firing handle, the firing assembly can drive the nail head to complete the suture cutting operation.
现有的直线型吻合器中，在手术没有准备完成时，医生可能会因为粗心或者经验不足而错误地握持击发把手，导致吻合器的误击发，影响手术效果，甚至对患者造成损伤。In the existing linear stapler, when the operation is not ready, the doctor may mistakenly hold the firing handle due to carelessness or lack of experience, resulting in false firing of the stapler, affecting the surgical effect, and even causing damage to the patient.
实用新型内容Utility model content
针对现有技术中的问题，本实用新型的目的在于提供一种击发机构及吻合器，提供保险用销柱，在销柱插入到致动杆的止挡槽中时，操作者无法握持击发把手进行吻合器的击发，只有按钮组件按下时，才能正常进行吻合器击发。Aiming at the problems in the prior art, the purpose of this utility model is to provide a firing mechanism and a stapler, providing a safety pin, when the pin is inserted into the stop groove of the actuating rod, the operator cannot hold the firing mechanism. The handle is used to fire the stapler, and only when the button assembly is pressed can the stapler be fired normally.
本实用新型实施例提供一种击发机构，用于吻合器，所述击发机构包括：致动杆，所述致动杆开设有一止挡槽；击发把手，所述击发把手的内部设置有一销柱；按钮组件，所述按钮组件包括按压杆，所述按压杆的第一端插入所述击发把手的内部；所述按钮组件处于初始位置，且所述击发把手被握持后，所述销柱的第一端突出于所述击发把手且进入所述止挡槽，所述击发把手相对于所述致动杆不可旋转；所述按钮组件从所述初始位置朝向所述击发把手运动而使得所述按压杆进一步进入所述击发把手的内部时，所述按压杆压制所述销柱的第一端朝向所述击发把手的第二端方向运动，以使得所述销柱的第一端与所述止挡槽脱离。The embodiment of the utility model provides a firing mechanism, which is used for a stapler. The firing mechanism includes: an actuating rod, which is provided with a stop groove; a firing handle, and a pin is arranged inside the firing handle. The button assembly, the button assembly includes a pressing rod, the first end of the pressing rod is inserted into the inside of the firing handle; the button assembly is in the initial position, and after the firing handle is held, the pin The first end of the firing handle protrudes from the firing handle and enters the stop groove, and the firing handle is non-rotatable relative to the actuating rod; the button assembly moves toward the firing handle from the initial position so that the When the pressing rod further enters the interior of the firing handle, the pressing rod presses the first end of the pin to move toward the second end of the firing handle, so that the first end of the pin is in contact with the firing handle. The stop groove is disengaged.
可选地，所述销柱上设置有第一配合部，所述第一配合部包括第一斜面，所述按压杆的第一端设置有第二配合部，所述第二配合部包括第三斜面；Optionally, the pin is provided with a first matching portion, the first matching portion includes a first slope, the first end of the pressing rod is provided with a second matching portion, and the second matching portion includes a first three slopes;
所述按压杆处于所述初始位置时，所述第三斜面与所述第一斜面贴合，所述按压杆从所述初始位置进一步进入所述击发把手的内部时，所述第一斜面沿所述第三斜面滑动，以使得所述销柱的第一端朝向所述击发把手的第二端方向运动。When the pressing lever is at the initial position, the third inclined surface is in contact with the first inclined surface, and when the pressing lever further enters the interior of the firing handle from the initial position, the first inclined surface The third slope slides so that the first end of the pin moves toward the second end of the firing handle.
可选地，所述第一配合部还包括第二斜面，所述第二斜面与所述第一斜面相对设置，所述第二配合部还包括第四斜面，所述第四斜面与所述第三斜面相对设置；Optionally, the first matching portion further includes a second slope, the second slope is opposite to the first slope, the second matching portion further includes a fourth slope, and the fourth slope is opposite to the first slope. The third slope is relatively set;
所述按压杆处于初始位置时，所述第四斜面与所述第二斜面贴合。When the pressing rod is at the initial position, the fourth inclined surface is attached to the second inclined surface.
可选地，所述第一斜面和所述第二斜面的交界处朝向所述销柱的第一端方向突起，所述第三斜面与所述第四斜面的交界处设置有一空腔，所述按压杆处于初始位置时，所述第一斜面和所述第二斜面的交接处进入所述空腔。Optionally, the junction of the first slope and the second slope protrudes toward the first end of the pin, and the junction of the third slope and the fourth slope is provided with a cavity, so When the pressing rod is at the initial position, the intersection of the first slope and the second slope enters the cavity.
可选地，所述击发把手的内部设置有用于放置所述销柱的销柱槽和用于放置所述按压杆的按压杆导向槽，所述销柱槽沿第一方向延伸，所述按压杆导向槽沿第二方向延伸，且所述销柱槽和所述按压杆导向槽交叉设置。Optionally, the inside of the firing handle is provided with a pin groove for placing the pin and a pressing rod guide groove for placing the pressing rod, the pin groove extends along the first direction, and the pressing The rod guide groove extends along the second direction, and the pin groove and the pressing rod guide groove are intersected.
可选地，所述按钮组件还包括连接部和导向杆，所述导向杆通过所述连接部与所述按压杆相连接，所述击发把手的内部设置有用于放置所述导向杆的按钮导向槽，所述导向杆的第一端插入所述按钮导向槽中；Optionally, the button assembly further includes a connection part and a guide rod, the guide rod is connected with the pressing rod through the connection part, and a button guide for placing the guide rod is arranged inside the firing handle. groove, the first end of the guide rod is inserted into the button guide groove;
可选地，所述导向杆为两个，且所述导向杆为弹性导向杆，所述击发把手的内部设置有两个所述按钮导向槽，两个所述导向杆的第一端分别插入两个所述按钮导向槽中。Optionally, there are two guide rods, and the guide rods are elastic guide rods, two button guide grooves are arranged inside the firing handle, and the first ends of the two guide rods are respectively inserted into two of the button guide slots.
可选地，所述按钮导向槽的一侧还开设有卡止部滑槽，所述导向杆的第一端设置有卡止部，所述导向杆插入所述按钮导向槽后，所述卡止部嵌入所述卡止部滑槽中。Optionally, one side of the button guide groove is also provided with a locking portion chute, and the first end of the guide rod is provided with a locking portion. After the guide rod is inserted into the button guide groove, the locking portion The stopping part is embedded in the sliding groove of the locking part.
可选地，所述按钮组件还包括连接部和按钮轴，所述按钮轴通过所述连接部与所述按压杆相连接，所述击发把手的内部设置有用于放置所述按钮轴的按钮轴安装槽，所述按钮轴安装槽中设置有一按钮复位弹簧，所述按钮组件从所述初始位置朝向所述击发把手运动而使得所述按压杆进一步进入所述击发把手的内部时，所述按钮复位弹簧发生变形。Optionally, the button assembly further includes a connecting portion and a button shaft, the button shaft is connected to the pressing rod through the connecting portion, and the inside of the firing handle is provided with a button shaft for placing the button shaft The installation groove, the button shaft installation groove is provided with a button return spring, when the button assembly moves from the initial position toward the firing handle so that the pressing rod further enters the interior of the firing handle, the button The return spring is deformed.
可选地，所述击发把手的内部设置有一销柱槽，所述销柱设置于所述销柱槽中，且所述销柱的第二端与所述销柱槽之间设置有销柱复位件，所述销柱仅有沿所述销柱槽的限定方向的直线运动。Optionally, a pin slot is provided inside the firing handle, the pin is set in the pin slot, and a pin is provided between the second end of the pin and the pin slot In the reset member, the pin can only move linearly along the defined direction of the pin groove.
可选地，所述止挡槽的近端设置有朝向所述致动杆的内部凹进的弧线槽，所述致动杆处于致动杆初始位置，且所述击发把手被握持而旋转时，所述弧线槽与所述销柱的第一端相配合且引导所述销柱的第一端进入所述止挡槽。Optionally, the proximal end of the stop groove is provided with an arc groove recessed toward the inside of the actuating rod, the actuating rod is in the initial position of the actuating rod, and the firing handle is held while When rotating, the arc groove cooperates with the first end of the pin and guides the first end of the pin to enter the stop groove.
本实用新型实施例还提供一种吻合器，所述吻合器包括所述的击发机构。The embodiment of the utility model also provides a stapler, which includes the firing mechanism.
本实用新型所提供的击发机构及吻合器具有如下优点：The firing mechanism and stapler provided by the utility model have the following advantages:
本实用新型提供了一种用于吻合器的击发机构，通过销柱和致动杆的配合实现吻合器的击发保险，在吻合器闭合后，医生需要调整钉头部的组织的堆叠状态，例如展平组织，使其达到可以击发的状态；在组织未达到可击发状态时，销柱插入致动杆中的止挡槽中，限制击发把手的旋转动作，击发把手的驱动件不能驱动致动杆而无法推动致动杆向远端运动，操作者无法握持击发把手进行吻合器的击发，从而避免吻合器在没有做好手术准备之前就被击发；销柱的位置由按钮组件的按压实现切换，按钮组件设置于击发把手上，无需另外单独设置，医生只要单手就可以操作，按钮组件操作简单，方便医生使用；本实用新型不仅可以应用于直线型吻合器，也可以应用于其他类型的吻合器。The utility model provides a firing mechanism for a stapler. The firing safety of the stapler is realized through the cooperation of the pin column and the actuating rod. After the stapler is closed, the doctor needs to adjust the stacking state of the tissue of the nail head, for example Flatten the tissue so that it can be fired; when the tissue is not ready to fire, the pin is inserted into the stop groove in the actuating rod to limit the rotation of the firing handle, and the driving part of the firing handle cannot be driven and actuated The operator cannot hold the firing handle to fire the stapler, thus preventing the stapler from being fired before it is ready for surgery; the position of the pin is realized by pressing the button assembly Switching, the button assembly is set on the firing handle, no need to set it separately, the doctor can operate it with one hand, the button assembly is easy to operate, and it is convenient for doctors to use; the utility model can be applied not only to linear staplers, but also to other types the stapler.
附图说明Description of drawings
通过阅读参照以下附图对非限制性实施例所作的详细描述，本实用新型的其它特征、目的和优点将会变得更明显。Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings.
图1是本实用新型一实施例的击发机构的结构示意图，此时击发把手未被握持，且按钮组件处于初始位置；Fig. 1 is a structural schematic diagram of the firing mechanism of an embodiment of the present invention, at this time the firing handle is not held, and the button assembly is in the initial position;
图2是本实用新型一实施例的击发把手和按钮组件的爆炸图；Fig. 2 is an exploded view of the firing handle and button assembly of an embodiment of the present invention;
图3是本实用新型一实施例的击发把手和按钮组件组合的结构示意图；Fig. 3 is a schematic structural view of the combination of the firing handle and the button assembly according to an embodiment of the present invention;
图4是本实用新型一实施例的击发把手和按钮组件结合的侧视图；Fig. 4 is a side view of the combination of the firing handle and the button assembly according to an embodiment of the present invention;
图5是图4中A-A方向的剖视图；Fig. 5 is the sectional view of A-A direction in Fig. 4;
图6是本实用新型一实施例的致动杆的立体图；Fig. 6 is a perspective view of an actuating rod according to an embodiment of the present invention;
图7是本实用新型一实施例的致动杆的结构示意图；Fig. 7 is a schematic structural view of an actuating rod according to an embodiment of the present invention;
图8是本实用新型一实施例的击发把手的结构示意图，此时击发把手被握持，且按钮组件处于初始位置；Fig. 8 is a schematic structural view of the firing handle according to an embodiment of the present invention. At this time, the firing handle is held and the button assembly is in the initial position;
图9是本实用新型一实施例的击发把手的结构示意图，此时击发把手被握持，且按钮组件被按压；Fig. 9 is a schematic structural view of the firing handle according to an embodiment of the present invention. At this time, the firing handle is held and the button assembly is pressed;
图10是本实用新型一实施例的击发把手的结构示意图，此时为击发过程中击发把手返回至初始状态，且按钮组件处于初始位置。Fig. 10 is a structural schematic diagram of the firing handle according to an embodiment of the present invention. At this time, the firing handle returns to the initial state during the firing process, and the button assembly is at the initial position.
附图标记：Reference signs:
1 吻合器本体 5 销柱1 Stapler body 5 Pin
2 固定把手 51 销柱的第一端2 Secure the first end of the handle 51 pin
3 击发把手 52 销柱的第二端3 Second end of firing handle 52 pin
31 击发把手的第一端 53 第一配合部31 The first end of the firing handle 53 The first mating part
32 击发把手的第二端 531 第一斜面32 Second end of firing handle 531 First bevel
33 销柱槽 532 第二斜面33 Pin slot 532 Second bevel
34 按压杆导向槽 6 销柱复位弹簧34 Press lever guide groove 6 Pin return spring
341 卡止部滑槽 7 按钮组件341 Locking part slide 7 button assembly
35 按钮导向槽 71 按压杆35 Button guide 71 Press lever
36 按钮轴安装槽 72 第二配合部36 Button shaft installation groove 72 Second mating part
37 轴套 721 第三斜面37 Bushing 721 Third bevel
38 卡爪 722 第四斜面38 Jaw 722 Fourth slope
4 致动杆 723 空腔4 Actuating lever 723 Cavity
41 齿条 73 导向杆41 Rack 73 Guide rod
411 齿条槽 731 卡止部411 Rack groove 731 Locking part
42 弧线槽 74 按钮轴42 Arc groove 74 Button shaft
43 止挡槽 75 按钮复位弹簧43 Stop groove 75 Button return spring
44 推进齿 76 连接部44 Push tooth 76 Connecting part
具体实施方式Detailed ways
现在将参考附图更全面地描述示例实施方式。然而，示例实施方式能够以多种形式实施，且不应被理解为限于在此阐述的实施方式；相反，提供这些实施方式使得本实用新型将全面和完整，并将示例实施方式的构思全面地传达给本领域的技术人员。在图中相同的附图标记表示相同或类似的结构，因而将省略对它们的重复描述。Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully incorporate the concepts of example embodiments. communicated to those skilled in the art. The same reference numerals denote the same or similar structures in the drawings, and thus their repeated descriptions will be omitted.
为了解决现有技术中的技术问题，本实用新型提供了一种用于吻合器的击发机构，所述击发机构包括致动杆、击发把手和按钮组件，在击发把手中设置保险销柱，击发把手被握持后，销柱进入致动杆的止挡槽中，击发把手不能旋转，此时吻合器处于保险状态，从而避免吻合器在没有做好手术准备时就被误击发。按钮组件设置在击发把手远离固定把手的一侧，且按钮组件通过与销柱的配合，可以切换销柱的状态，当医生做好手术准备时，可以朝击发把手的方向按下按钮组件，按钮组件压制销柱进一步进入击发把手内部，从而与止挡槽脱离，击发把手可以正常旋转使用，此时吻合器处于可击发状态，可以正常击发吻合器。In order to solve the technical problems in the prior art, the utility model provides a firing mechanism for a stapler. The firing mechanism includes an actuating lever, a firing handle and a button assembly. After the handle is held, the pin enters the stop groove of the actuating rod, and the firing handle cannot be rotated. At this time, the stapler is in a safe state, thereby preventing the stapler from being mistakenly fired when it is not ready for surgery. The button assembly is set on the side of the firing handle away from the fixed handle, and the button assembly can switch the state of the pin by cooperating with the pin. When the doctor is ready for the operation, he can press the button assembly in the direction of the firing handle. The button The pressing pin of the component further enters into the interior of the firing handle, thereby disengaging from the stop groove, and the firing handle can be rotated and used normally. At this time, the stapler is in a firing state, and the stapler can be fired normally.
本实用新型还提供一种吻合器，包括上述的击发机构，通过击发把手的保险销柱和致动杆的止挡槽的配合，避免吻合器在未做好手术准备时的误击发，并且通过击发把手上设置的按钮组件来实现销柱状态的切换，在按下按钮组件时，可以实现吻合器的正常击发。本实用新型不仅可以应用于直线型吻合器，也可以应用于其他类型的吻合器，例如弧线型吻合器等。The utility model also provides a stapler, including the above-mentioned firing mechanism, through the cooperation of the safety pin of the firing handle and the stop groove of the actuating rod, the mistaken firing of the stapler when it is not ready for surgery can be avoided, and through The button assembly provided on the firing handle is used to switch the state of the pin, and when the button assembly is pressed, the stapler can be fired normally. The utility model can be applied not only to linear staplers, but also to other types of staplers, such as arc staplers.
下面结合图1～10进一步介绍本实用新型一实施例的击发机构的结构。其中，图1示出了该实施例的击发机构与吻合器配合的结构。致动杆4设置于吻合器本体1中，吻合器本体1的一侧设置有固定把手2和击发把手3。如图1～7所示，致动杆4上设置有止挡槽43，击发把手3的内部设置有销柱5。销柱5未进入止挡槽43中时，击发把手3可以相对于固定把手2旋转，靠近或远离固定把手2，初始状态时，击发把手3远离固定把手2，击发把手3被握持后，靠近固定把手2。所述销柱5具有第一状态和第二状态，所述销柱5处于第一状态时，所述销柱5的第一端进入所述止挡槽43，击发把手3相对于致动杆4不可旋转，以实现击发把手3和致动杆4的相对限位，此时吻合器处于保险状态，所述销柱5处于第二状态时，所述销柱5的第一端与所述止挡槽43脱离，而不阻挡所述击发把手3的旋转动作，此时吻合器处于可击发状态。所述击发把手3的一侧设置有用于切换销柱5状态的按钮组件7，按钮组件7优选设置在击发把手3远离固定把手2的一侧，方便医生操作。所述按钮组件7包括按压杆71，所述按压杆71的第一端插入所述击发把手3的内部，所述按钮组件7处于初始位置且所述击发把手3被握持后，所述销柱5的第一端进入所述止挡槽43，此时释放击发把手3，击发把手3在销柱5的作用的下无法返回至初始位置。朝击发把手3的方向按压按钮组件7，按钮组件7整体从初始位置朝向所述击发把手3运动而使得所述按压杆71进一步进入所述击发把手3的内部，所述按压杆71压制所述销柱5使销柱5的第一端51朝向所述击发把手3的第二端32方向运动，以使得所述销柱5从所述第一状态进入所述第二状态，即所述销柱5的第一端从所述止挡槽43中脱离，同时击发把手3在复位结构的作用下返回初始位置。The structure of the firing mechanism of an embodiment of the present utility model will be further introduced below in conjunction with FIGS. 1 to 10 . Wherein, Fig. 1 shows the matching structure of the firing mechanism and the stapler in this embodiment. The actuating rod 4 is arranged in the stapler body 1 , and one side of the stapler body 1 is provided with a fixed handle 2 and a firing handle 3 . As shown in FIGS. 1-7 , a stop groove 43 is provided on the actuating rod 4 , and a pin 5 is provided inside the firing handle 3 . When the pin 5 does not enter the stop groove 43, the firing handle 3 can rotate relative to the fixed handle 2, approaching or moving away from the fixed handle 2. In the initial state, the firing handle 3 is far away from the fixed handle 2. After the firing handle 3 is held, Close to the fixed handle 2. The pin 5 has a first state and a second state. When the pin 5 is in the first state, the first end of the pin 5 enters the stop groove 43 , and the firing handle 3 is opposite to the actuating rod. 4 is non-rotatable, so as to realize the relative limit of the firing handle 3 and the actuating rod 4. At this time, the stapler is in the safe state, and when the pin 5 is in the second state, the first end of the pin 5 is in contact with the The stop groove 43 disengages without blocking the rotation of the firing handle 3, and the stapler is in a firing state at this time. One side of the firing handle 3 is provided with a button assembly 7 for switching the state of the pin 5. The button assembly 7 is preferably arranged on the side of the firing handle 3 away from the fixed handle 2, which is convenient for doctors to operate. The button assembly 7 includes a pressing rod 71, and the first end of the pressing rod 71 is inserted into the inside of the firing handle 3. After the button assembly 7 is in the initial position and the firing handle 3 is held, the pin The first end of the post 5 enters the stop groove 43 , and the firing handle 3 is released at this time, and the firing handle 3 cannot return to the initial position under the action of the pin post 5 . Press the button assembly 7 in the direction of the firing handle 3, and the button assembly 7 as a whole moves from the initial position toward the firing handle 3 so that the pressing rod 71 further enters the inside of the firing handle 3, and the pressing rod 71 presses the firing handle 3. The pin 5 moves the first end 51 of the pin 5 towards the second end 32 of the firing handle 3, so that the pin 5 enters the second state from the first state, that is, the pin The first end of the column 5 disengages from the stop groove 43, and at the same time, the firing handle 3 returns to the initial position under the action of the reset structure.
如图2～5所示，所述击发把手3的内部设置有用于放置所述销柱5的销柱槽33和用于放置所述按压杆71的按压杆导向槽34，所述销柱槽33沿第一方向延伸，所述按压杆导向槽34沿第二方向延伸，且所述销柱槽33和所述按压杆导向槽34交叉设置。所述第一方向为近似沿所述击发把手3的长度方向。销柱槽33和按压杆导向槽34的交叉位置即为销柱5的第一配合部53与按压杆71的第二配合部72的配合位置，按压杆71和销柱5在两个槽的交叉位置相互交错，从而可以实现按压杆71向销柱5的压力的传递。销柱5只能沿销柱槽33方向进行直线运动，在第一状态和第二状态之间切换。按压杆71只能沿按压杆导向槽34的延伸方向运动。As shown in Figures 2 to 5, the inside of the firing handle 3 is provided with a pin groove 33 for placing the pin 5 and a pressing rod guide groove 34 for placing the pressing rod 71, the pin groove 33 extends along the first direction, the pressing rod guide groove 34 extends along the second direction, and the pin groove 33 and the pressing rod guide groove 34 are intersected. The first direction is approximately along the length of the firing handle 3 . The intersecting position of the pin groove 33 and the pressing rod guide groove 34 is the matching position of the first matching portion 53 of the pin 5 and the second matching portion 72 of the pressing rod 71, and the pressing rod 71 and the pin 5 are located between the two grooves. The intersecting positions are staggered with each other, so that the transmission of the pressure from the pressing rod 71 to the pin 5 can be realized. The pin 5 can only move linearly along the direction of the pin groove 33, and switch between the first state and the second state. The pressing rod 71 can only move along the extending direction of the pressing rod guide groove 34 .
在该实施例中，所述销柱5上设置有第一配合部53，所述第一配合部53包括第一斜面531，所述按压杆71的第一端设置有第二配合部72，所述第二配合部72包括第三斜面721；所述按压杆71处于初始位置时，所述第三斜面721与所述第一斜面531贴合，所述按压杆71从初始位置进一步进入所述击发把手3的内部时，所述第一斜面531沿所述第三斜面721滑动，以使得所述销柱5的第一端51朝向所述击发把手3的第二端32方向运动。在图5的视角中，第一斜面531是从右侧面向左侧边向上倾斜的，第三斜面721和第一斜面531的倾斜方向一致，从右侧边向左侧边向上倾斜。在按压杆71从右边向左边进一步进入到击发把手3的内部时，在第三斜面721的作用下，给第一斜面531一个向下的压力，第一配合部53带动销柱5整体向击发把手3的第二端32运动。In this embodiment, the pin 5 is provided with a first matching portion 53, the first matching portion 53 includes a first slope 531, the first end of the pressing rod 71 is provided with a second matching portion 72, The second mating portion 72 includes a third inclined surface 721; when the pressing rod 71 is at the initial position, the third inclined surface 721 is in contact with the first inclined surface 531, and the pressing rod 71 further enters the position from the initial position. When the inside of the firing handle 3 is described, the first slope 531 slides along the third slope 721 , so that the first end 51 of the pin 5 moves toward the second end 32 of the firing handle 3 . In the viewing angle of FIG. 5 , the first slope 531 slopes upward from the right side to the left side, and the third slope 721 slopes upward from the right side to the left side in the same direction as the first slope 531 . When the pressing rod 71 further enters the interior of the firing handle 3 from the right to the left, under the action of the third slope 721, a downward pressure is applied to the first slope 531, and the first matching part 53 drives the pin 5 as a whole to fire. The second end 32 of the handle 3 is moved.
进一步地，所述第一配合部53还可以包括第二斜面532，所述第二斜面532与所述第一斜面531相对设置，所述第二配合部72还可以包括第四斜面722，所述第四斜面722与所述第三斜面731相对设置；所述按压杆71处于所述初始位置时，所述第四斜面722与所述第二斜面532贴合。在图5的视角中，第二斜面532是从左侧边向右侧边向上倾斜的，第四斜面722和第二斜面532的倾斜方向一致，从左侧边向右侧边向上倾斜。Further, the first matching portion 53 may also include a second slope 532, the second slope 532 is disposed opposite to the first slope 531, and the second matching portion 72 may also include a fourth slope 722, so The fourth slope 722 is disposed opposite to the third slope 731 ; when the pressing rod 71 is at the initial position, the fourth slope 722 is attached to the second slope 532 . In the viewing angle of FIG. 5 , the second slope 532 is inclined upward from the left side to the right side, and the fourth slope 722 is inclined upward from the left side to the right side in the same direction as the second slope 532 .
如图5所示，所述第一斜面531和所述第二斜面532的交界处朝向所述销柱5的第一端51方向突起，所述第三斜面721与所述第四斜面722的交界处设置有一空腔723，所述按压杆71处于初始位置时，所述第一斜面531和所述第二斜面532的交接处进入所述空腔723，以避免在未按压按钮组件7时，第一配合部53和第二配合部72发生相对运动，从而保障在未按压按钮组件7时，按压杆71在所述初始位置的稳定性。As shown in FIG. 5 , the junction of the first slope 531 and the second slope 532 protrudes toward the first end 51 of the pin 5 , and the third slope 721 and the fourth slope 722 A cavity 723 is provided at the junction, and when the pressing rod 71 is in the initial position, the intersection of the first slope 531 and the second slope 532 enters the cavity 723, so as to avoid , the first matching portion 53 and the second matching portion 72 move relative to each other, so as to ensure the stability of the pressing rod 71 at the initial position when the button assembly 7 is not pressed.
如图2～5所示，为了实现按钮组件7在按压过程中更好的导向和避免按压杆71在初始位置时按钮组件7从击发把手3中脱离，所述按钮组件7还可以包括连接部76和导向杆73。所述导向杆73通过所述连接部76与所述按压杆71相连接，所述击发把手3的内部设置有用于放置所述导向杆73的按钮导向槽35，所述导向杆73的第一端插入所述按钮导向槽35中。在该实施例中，所述导向杆73为两个，所述按钮导向槽35也为两个，且所述导向杆73为弹性导向杆。在所述导向杆73处于初始状态时，两个导向杆73张开后的距离是大于两个按钮导向槽35的距离的。在安装时，将两个导向杆73向中间压缩，使得两个导向杆73向中间产生一定的弹性变形，插入到两个按钮导向槽35中即可，插入后在导向杆73的弹性恢复力作用下，可以将导向杆73保持在按钮导向槽35中。为了进一步提高导向杆73的稳定性，避免导向杆73意外地从按钮导向槽35中脱离，所述导向杆73的第一端还设置有卡止部731，且所述按钮导向槽35的侧面设置有卡止部滑槽341，在导向杆73插入到按钮导向槽35中时，卡止部731嵌入在卡止部滑槽341中，以对卡止部731的运动进行限定。因此，导向杆73只能够沿按钮导向槽35的延伸方向做直线运动，并且通过卡止部731在按钮导向槽35中的卡止作用，按压杆71在初始位置时，按钮组件7也不会从击发把手3中脱离。As shown in Figures 2 to 5, in order to achieve better guidance of the button assembly 7 during the pressing process and to prevent the button assembly 7 from detaching from the firing handle 3 when the pressing rod 71 is in the initial position, the button assembly 7 may also include a connecting part 76 and guide rod 73. The guide rod 73 is connected with the pressing rod 71 through the connecting portion 76, the inside of the firing handle 3 is provided with a button guide groove 35 for placing the guide rod 73, the first of the guide rod 73 The end is inserted into the button guide groove 35. In this embodiment, there are two guide rods 73, and there are also two button guide grooves 35, and the guide rods 73 are elastic guide rods. When the guide rods 73 are in the initial state, the distance between the two guide rods 73 is greater than the distance between the two button guide slots 35 . When installing, compress the two guide rods 73 toward the middle, so that the two guide rods 73 produce a certain elastic deformation toward the middle, and insert them into the two button guide grooves 35. After the insertion, the elastic restoring force of the guide rods 73 will Under the action, the guide rod 73 can be kept in the button guide groove 35 . In order to further improve the stability of the guide rod 73 and prevent the guide rod 73 from accidentally disengaging from the button guide groove 35, the first end of the guide rod 73 is also provided with a locking portion 731, and the side of the button guide groove 35 A locking part sliding groove 341 is provided, and when the guide rod 73 is inserted into the button guide groove 35 , the locking part 731 is embedded in the locking part sliding groove 341 to limit the movement of the locking part 731 . Therefore, the guide rod 73 can only move linearly along the extension direction of the button guide groove 35, and through the locking effect of the locking part 731 in the button guide groove 35, when the pressing rod 71 is at the initial position, the button assembly 7 will not move. Disengage from firing handle 3.
为了实现按钮组件7在按压后的自动复位，所述按钮组件7还可以包括连接部76和按钮轴74，所述按钮轴74通过所述连接部76与所述按压杆71相连接，所述击发把手3的内部设置有用于放置所述按钮轴74的按钮轴导向槽36，所述按钮轴导向槽36中设置有一按钮复位弹簧75，所述按钮组件7从初始位置朝向所述击发把手3运动而使得所述按压杆71进一步进入所述击发把手3的内部时，所述按钮复位弹簧75发生变形。在按钮组件7上的外力消除后，按钮复位弹簧75的变形恢复作用会推动按钮组件7朝向远离击发把手3的方向运动，以使得按钮组件7返回至初始位置。在按钮轴导向槽36中进一步可以设置有轴套37，所述按钮轴74穿设于所述轴套37，在所述按钮组件7在所述按钮轴导向槽36中运动的过程中，使所述按钮组件7的运动更顺畅。In order to realize the automatic reset of the button assembly 7 after being pressed, the button assembly 7 may also include a connecting portion 76 and a button shaft 74, the button shaft 74 is connected with the pressing rod 71 through the connecting portion 76, the The inside of the firing handle 3 is provided with a button shaft guide groove 36 for placing the button shaft 74, and a button return spring 75 is arranged in the button shaft guide groove 36, and the button assembly 7 faces the firing handle 3 from the initial position. When the pressing rod 71 is moved further into the inside of the firing handle 3 , the button return spring 75 is deformed. After the external force on the button assembly 7 is removed, the deformation recovery action of the button return spring 75 will push the button assembly 7 to move away from the firing handle 3, so that the button assembly 7 returns to the initial position. A shaft sleeve 37 may further be provided in the button shaft guide groove 36, and the button shaft 74 is passed through the shaft sleeve 37, and during the movement of the button assembly 7 in the button shaft guide groove 36, the The movement of the button assembly 7 is smoother.
进一步地，为了实现销柱5的自动复位，所述销柱5的第二端52与所述销柱槽33之间可以设置有销柱复位件。该销柱复位件可以是销柱复位弹簧6。Further, in order to realize the automatic reset of the pin 5 , a pin reset member may be provided between the second end 52 of the pin 5 and the pin groove 33 . The pin return member can be a pin return spring 6 .
如图6和图7所示，所述止挡槽43的近端设置有朝向所述致动杆4的内部凹进的弧线槽42，握持所述击发把手3的过程中，所述击发把手3从初始位置向靠近固定把手2的位置旋转时，所述弧线槽42与所述销柱5的第一端51相配合且引导所述销柱5的第一端51进入所述止挡槽43，避免销柱5的第一端51与致动杆4接触时的干涉，提高销柱5的第一端51沿致动杆4运动的平滑性。As shown in FIGS. 6 and 7 , the proximal end of the stopper groove 43 is provided with an arc groove 42 recessed toward the interior of the actuating rod 4 , and during the process of holding the firing handle 3 , the When the firing handle 3 is rotated from the initial position to a position close to the fixed handle 2, the arc groove 42 matches with the first end 51 of the pin 5 and guides the first end 51 of the pin 5 into the The stop groove 43 prevents the first end 51 of the pin 5 from interfering with the actuating rod 4 and improves the smoothness of the movement of the first end 51 of the pin 5 along the actuating rod 4 .
在本实用新型中，远端和近端是相对于操作者来说的，其中，远端指的是距离操作者较远的一端，近端指的是距离操作者较近的一端。例如，在图1的视角中，吻合器本体1的远端指的是图中左边一端，近端指的是图中右边一端。在图7的视角中，致动杆4的远端指的是图中左边一端，近端指的是图中右边一端。In the present invention, the far end and the near end are relative to the operator, wherein the far end refers to the end farther away from the operator, and the proximal end refers to the end closer to the operator. For example, in the viewing angle of FIG. 1 , the distal end of the stapler body 1 refers to the left end in the figure, and the proximal end refers to the right end in the figure. In the perspective of FIG. 7 , the far end of the actuating rod 4 refers to the left end in the figure, and the proximal end refers to the right end in the figure.
进一步地，致动杆4在止挡槽43的远端还可以设置有推进齿44，推进齿44可以与击发把手3上设置的卡爪38相配合，具体配合方式在下文中详细描述。致动杆4自止挡槽43的近端位置开始还设置有齿条41，齿条41可以与击发把手3上设置的卡爪38相配合，具体配合方式在下文中详细描述。齿条41的中部可以设置有齿条槽411，齿条槽411实现对销柱5的第一端51的让位，让位方式在下文中详细描述。Further, the actuating rod 4 can also be provided with a propelling tooth 44 at the far end of the stop groove 43, and the propelling tooth 44 can cooperate with the claw 38 provided on the firing handle 3, and the specific cooperating method will be described in detail below. The actuating rod 4 is also provided with a rack 41 starting from the proximal end of the stop groove 43 , and the rack 41 can cooperate with the claw 38 provided on the firing handle 3 , and the specific cooperation method will be described in detail below. The middle part of the rack 41 may be provided with a rack groove 411 , and the rack groove 411 realizes giving way to the first end 51 of the pin 5 , and the way of making way will be described in detail below.
下面结合图1、图8和图9进一步介绍在销柱5处于第一状态时，击发机构的状态。图1中示出的是吻合器处于初始状态时的结构。销柱5及击发把手3均处于初始状态，此时击发把手3的第二端32远离固定把手2。在图1的状态中，此时致动杆4处于致动杆初始位置。此时握持击发把手3，使得击发把手3朝向固定把手2的方向旋转靠近固定把手2，则进入图8中示出的状态。此时击发把手3的卡爪38与致动杆4的推进齿44接触并向吻合器的远端推动推进齿44，推进齿44带动致动杆4向吻合器的远端运动，即致动杆4沿图8中B方向运动，此时致动杆4从致动杆4的初始位置向吻合器远端运动了一段距离。此时，在销柱复位弹簧6的作用下，销柱5的第一端51经过弧线槽42的引导而进入致动杆4的止挡槽43中处于第一状态。此时即使松开击发把手3，击发把手3由于销柱5和止挡槽43的限位作用无法再旋转返回初始位置。此时吻合器不能被击发，处于保险状态。The state of the firing mechanism when the pin 5 is in the first state will be further described below with reference to FIG. 1 , FIG. 8 and FIG. 9 . Shown in Fig. 1 is the structure when the stapler is in the initial state. Both the pin 5 and the firing handle 3 are in the initial state, and the second end 32 of the firing handle 3 is far away from the fixed handle 2 at this time. In the state of FIG. 1 , the actuating lever 4 is at the initial position of the actuating lever. At this time, the firing handle 3 is held, so that the firing handle 3 rotates toward the fixed handle 2 and approaches the fixed handle 2, and then enters the state shown in FIG. 8 . At this time, the claw 38 of the firing handle 3 is in contact with the propelling tooth 44 of the actuating rod 4 and pushes the propelling tooth 44 toward the far end of the stapler, and the propelling tooth 44 drives the actuating rod 4 to move toward the distal end of the stapler, i. The rod 4 moves along the direction B in FIG. 8 , at this time, the actuating rod 4 moves a certain distance from the initial position of the actuating rod 4 to the distal end of the stapler. At this time, under the action of the pin return spring 6 , the first end 51 of the pin 5 is guided by the arc groove 42 and enters the stop groove 43 of the actuating rod 4 to be in the first state. Even if the firing handle 3 is released at this time, the firing handle 3 cannot rotate back to the initial position due to the limiting effect of the pin post 5 and the stop groove 43 . At this time, the stapler cannot be fired and is in a safe state.
在医生做好手术准备之后，沿图9中C方向按下按钮组件7，按压杆71进一步进入到击发把手3之中，在压力作用下，销柱5朝向击发把手3第二端32的方向运动从第一状态进入第二状态，销柱5的第一端51与止挡槽43脱离，进入图9中示出的状态。此时，击发把手3可以在击发把手3的复位结构(例如复位弹簧)作用下，重新旋转返回如图1所示的初始位置。在击发把手3返回至初始位置之后，卡爪38的位置与致动杆4的齿条41位置相对应。此时松开按钮组件7，按钮组件7在按钮复位弹簧75的作用下返回至初始位置，在销柱复位弹簧6的作用下，销柱5的第一端51朝向远离击发把手3的第二端32的方向运动而再次伸出所述击发把手3的第一端31。医生再次握持击发把手3，使得击发把手3向靠近所述固定把手2的旋转时，销柱5的第一端51与齿条槽411接触，齿条槽411实现对销柱5的第一端51运动的让位。再次握持击发把手3，击发把手3的卡爪38与齿条41相接触，并推动齿条41带动致动杆4向吻合器的远端方向运动，从而击发吻合器。After the doctor is ready for the operation, he presses the button assembly 7 along the direction C in FIG. The movement enters the second state from the first state, the first end 51 of the pin 5 disengages from the stop groove 43, and enters the state shown in FIG. 9 . At this time, the firing handle 3 can be rotated back to the initial position shown in FIG. 1 under the action of the reset structure (such as a return spring) of the firing handle 3 . After the firing handle 3 has returned to the initial position, the position of the pawl 38 corresponds to the position of the rack 41 of the actuating lever 4 . At this time, the button assembly 7 is released, and the button assembly 7 returns to the initial position under the action of the button return spring 75, and under the action of the pin return spring 6, the first end 51 of the pin 5 faces the second end 51 away from the firing handle 3. The direction of the end 32 moves to extend the first end 31 of the firing handle 3 again. The doctor holds the firing handle 3 again, so that when the firing handle 3 rotates close to the fixed handle 2, the first end 51 of the pin 5 is in contact with the rack groove 411, and the rack groove 411 realizes the first contact with the pin 5. The End 51 movement gave way. Hold the firing handle 3 again, the claw 38 of the firing handle 3 contacts the rack 41, and pushes the rack 41 to drive the actuating rod 4 to move toward the distal end of the stapler, thereby firing the stapler.
本实用新型所提供的击发机构及吻合器具有如下优点：The firing mechanism and stapler provided by the utility model have the following advantages:
本实用新型提供了一种用于吻合器的击发机构，通过销柱和致动杆的配合实现吻合器的击发保险，在吻合器闭合后，医生需要调整钉头部的组织的堆叠状态，例如展平组织，使其达到可以击发的状态；在组织未达到可击发状态时，销柱插入致动杆的止挡槽中，限制击发把手的旋转动作，击发把手的驱动件不能驱动致动杆而无法推动致动杆向远端运动，操作者无法握持击发把手进行吻合器的击发，从而避免吻合器在没有做好手术准备之前就被击发；销柱的位置由按钮组件的按压实现切换，按钮组件设置于击发把手上，无需另外单独设置，按钮组件操作简单，方便医生操作；本实用新型不仅可以应用于直线型吻合器，也可以应用于其他类型的吻合器。The utility model provides a firing mechanism for a stapler. The firing safety of the stapler is realized through the cooperation of the pin column and the actuating rod. After the stapler is closed, the doctor needs to adjust the stacking state of the tissue of the nail head, for example Flatten the tissue so that it can be fired; when the tissue is not ready to fire, the pin is inserted into the stop groove of the actuating rod to limit the rotation of the firing handle, and the driving part of the firing handle cannot drive the actuating rod However, the actuating rod cannot be pushed to the far end, and the operator cannot hold the firing handle to fire the stapler, thereby preventing the stapler from being fired before it is ready for surgery; the position of the pin is switched by pressing the button assembly , the button assembly is arranged on the firing handle, without additional separate setting, the button assembly is easy to operate, and is convenient for doctors to operate; the utility model can be applied not only to linear staplers, but also to other types of staplers.
以上内容是结合具体的优选实施方式对本实用新型所作的进一步详细说明，不能认定本实用新型的具体实施只局限于这些说明。对于本实用新型所属技术领域的普通技术人员来说，在不脱离本实用新型构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本实用新型的保护范围。The above content is a further detailed description of the utility model in combination with specific preferred embodiments, and it cannot be assumed that the specific implementation of the utility model is only limited to these descriptions. For a person of ordinary skill in the technical field to which the utility model belongs, without departing from the concept of the utility model, some simple deduction or substitutions can also be made, which should be regarded as belonging to the protection scope of the utility model.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920187434.5UCN209644987U (en) | 2019-02-02 | 2019-02-02 | Firing lock and stapler |
| PCT/CN2019/127100WO2020125765A1 (en) | 2018-12-20 | 2019-12-20 | Firing mechanism and anastomat |
| AU2019410648AAU2019410648B2 (en) | 2018-12-20 | 2019-12-20 | Firing mechanism and anastomat |
| US17/311,215US12096939B2 (en) | 2018-12-20 | 2019-12-20 | Firing mechanism and stapler |
| EP19900141.3AEP3900646B1 (en) | 2018-12-20 | 2019-12-20 | Firing mechanism for a surgical stapler |
| JP2021535931AJP7441842B2 (en) | 2018-12-20 | 2019-12-20 | trigger mechanism and stapler |
| BR112021010637-5ABR112021010637B1 (en) | 2018-12-20 | 2019-12-20 | FIRING MECHANISM AND STAPLER |
| KR1020217020013AKR102705648B1 (en) | 2018-12-20 | 2019-12-20 | Launcher and stapler |
| ES19900141TES2999984T3 (en) | 2018-12-20 | 2019-12-20 | Firing mechanism for a surgical stapler |
| CA3121953ACA3121953A1 (en) | 2018-12-20 | 2019-12-20 | Firing mechanism and stapler |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920187434.5UCN209644987U (en) | 2019-02-02 | 2019-02-02 | Firing lock and stapler |
| Publication Number | Publication Date |
|---|---|
| CN209644987Utrue CN209644987U (en) | 2019-11-19 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920187434.5UActiveCN209644987U (en) | 2018-12-20 | 2019-02-02 | Firing lock and stapler |
| Country | Link |
|---|---|
| CN (1) | CN209644987U (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020125765A1 (en)* | 2018-12-20 | 2020-06-25 | 天臣国际医疗科技股份有限公司 | Firing mechanism and anastomat |
| CN113331898A (en)* | 2021-07-05 | 2021-09-03 | 苏州优脉瑞医疗科技有限公司 | Anastomat with wear-resisting type trigger mechanism |
| CN114259269A (en)* | 2021-12-23 | 2022-04-01 | 苏州法兰克曼医疗器械有限公司 | Anastomat driving device with protection function and electric anastomat |
| WO2024017107A1 (en)* | 2022-07-18 | 2024-01-25 | 天臣国际医疗科技股份有限公司 | Firing switching mechanism and surgical stapler |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020125765A1 (en)* | 2018-12-20 | 2020-06-25 | 天臣国际医疗科技股份有限公司 | Firing mechanism and anastomat |
| US12096939B2 (en) | 2018-12-20 | 2024-09-24 | Touchstone International Medical Science Co., Ltd. | Firing mechanism and stapler |
| CN113331898A (en)* | 2021-07-05 | 2021-09-03 | 苏州优脉瑞医疗科技有限公司 | Anastomat with wear-resisting type trigger mechanism |
| CN113331898B (en)* | 2021-07-05 | 2022-08-26 | 苏州优脉瑞医疗科技有限公司 | Anastomat with wear-resisting type trigger mechanism |
| CN114259269A (en)* | 2021-12-23 | 2022-04-01 | 苏州法兰克曼医疗器械有限公司 | Anastomat driving device with protection function and electric anastomat |
| CN114259269B (en)* | 2021-12-23 | 2023-12-26 | 苏州法兰克曼医疗器械有限公司 | Anastomat driving device with protection function and electric anastomat |
| WO2024017107A1 (en)* | 2022-07-18 | 2024-01-25 | 天臣国际医疗科技股份有限公司 | Firing switching mechanism and surgical stapler |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | Address after:215021 No. 278 Dongping Street, Suzhou Industrial Park, Jiangsu Province Patentee after:Tianchen International Medical Technology Co., Ltd Address before:215123 No. 278 Dongping Street, Suzhou Industrial Park, Suzhou City, Jiangsu Province Patentee before:TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE Co.,Ltd. | |
| CP03 | Change of name, title or address |