技术领域technical field
本发明涉及医疗器械领域，特别涉及一种具有击发杆机构的吻合器。The invention relates to the field of medical instruments, in particular to a stapler with a firing rod mechanism.
背景技术Background technique
吻合器击发时为推钉器提供推动力和复位力的机构，吻合器在击发时，通过击发杆将击发手柄的击发力传递到推钉器上，进而推动钛钉完成钛钉击发成型；吻合器在击发完成后，通过击发复位弹簧推动击发杆，使击发杆和推钉器复位。The mechanism that provides the driving force and reset force for the nail pusher when the stapler is fired. When the stapler is fired, the firing force of the firing handle is transmitted to the nail pusher through the firing rod, and then the titanium nail is pushed to complete the firing of the titanium nail; After the stapler is fired, the firing rod is pushed by the firing return spring to reset the firing rod and the nail pusher.
吻合器的击发杆是弧形结构，在使用过程中安装于弧形金属管内，器械击发时击发杆在弧形金属管内往复运动，运动过程中击发杆因金属管的结构限制，击发杆需克服弹性变形与弧形金属管内壁产生激烈摩擦，严重的会引起击发杆无法复位等不良现象。现有吻合器中使用的击发杆结构，因击发杆的结构缺陷，击发杆在击发时击发力过大直接引起器械使用舒适性降低；在击发杆回复时因击发杆与金属管的摩擦力过大，击发杆回复迟缓或无法复位。The firing rod of the stapler is an arc-shaped structure, which is installed in the arc-shaped metal tube during use. When the instrument is fired, the firing rod reciprocates in the arc-shaped metal tube. During the movement, the firing rod is limited by the structure of the metal tube, and the firing rod needs to overcome The elastic deformation will cause intense friction with the inner wall of the arc-shaped metal tube, which will cause bad phenomena such as failure of the firing rod to reset. The firing rod structure used in the existing stapler, due to the structural defect of the firing rod, the firing force of the firing rod is too large during firing, which directly causes the comfort of the instrument to be reduced; when the firing rod is restored, due to the friction between the firing rod and the metal tube If it is too large, the firing rod will be slow to return or cannot be reset.
现有吻合器的击发杆机构与金属管内壁的摩擦力过大，导致器械击发力过大和击发完成后击发手柄无法复位等缺陷。故有待提出一种具有新的击发杆机构的吻合器。The friction between the firing lever mechanism of the existing stapler and the inner wall of the metal tube is too large, resulting in defects such as excessive firing force of the instrument and failure of the firing handle to reset after firing. Therefore, a kind of stapler with new firing rod mechanism remains to be proposed.
发明内容Contents of the invention
本发明提供了一种具有击发杆机构的吻合器，以至少解决现有技术中吻合器的击发杆机构与金属管内壁的摩擦力过大，导致器械击发力过大和击发完成后击发手柄无法复位等缺陷的技术问题。The present invention provides a stapler with a firing rod mechanism to at least solve the problem of excessive friction between the firing rod mechanism of the stapler and the inner wall of the metal tube in the prior art, resulting in excessive firing force of the instrument and failure of the firing handle after firing. Technical problems such as reset.
本发明提供了一种具有击发杆机构的吻合器，上述击发杆机构包括击发杆，上述击发杆上设有第一导向条和第二导向条。The present invention provides a stapler with a firing rod mechanism. The firing rod mechanism includes a firing rod, and a first guide strip and a second guide strip are arranged on the firing rod.
可选的，上述击发杆机构还包括下支撑板和上支撑板，上述下支撑板上设有第三导向条，上述上支撑板上设有第四导向条。Optionally, the firing lever mechanism further includes a lower support plate and an upper support plate, the lower support plate is provided with a third guide bar, and the upper support plate is provided with a fourth guide bar.
可选的，上述第一导向条和上述第二导向条位于上述击发杆的两侧。Optionally, the above-mentioned first guide bar and the above-mentioned second guide bar are located on both sides of the above-mentioned firing rod.
可选的，上述第一导向条和上述第二导向条相对于上述击发杆的中心线对称。Optionally, the above-mentioned first guide bar and the above-mentioned second guide bar are symmetrical with respect to the center line of the above-mentioned firing rod.
可选的，上述第三导向条位于上述下支撑板外表面的中间。Optionally, the third guide bar is located in the middle of the outer surface of the lower support plate.
可选的，上述第四导向条位于上述上支撑板外表面的中间。Optionally, the fourth guide bar is located in the middle of the outer surface of the upper support plate.
可选的，上述第一导向条和上述第二导向条为圆形导向条。Optionally, the above-mentioned first guide bar and the above-mentioned second guide bar are circular guide bars.
可选的，上述第三导向条和上述第四导向条为圆形导向条。Optionally, the third guide bar and the fourth guide bar are circular guide bars.
可选的，上述击发杆机构还包括弯管、击发手柄、推钉器和击发复位弹簧。Optionally, the firing lever mechanism also includes a bent pipe, a firing handle, a nail pusher and a firing return spring.
可选的，上述吻合器为管型吻合器、直线型吻合器或包皮环切吻合器。Optionally, the aforementioned stapler is a tubular stapler, a linear stapler or a circumcision stapler.
本发明技术方案针对现有技术中的上述不足，采用新型击发杆结构，确保在降低击发杆与金属管内壁摩擦力的基础上保证击发杆为推钉器提供足够的推动力和回复力，保证器械具有良好的可靠性和使用舒适性。The technical solution of the present invention aims at the above-mentioned deficiencies in the prior art, and adopts a novel firing rod structure to ensure that the firing rod provides sufficient driving force and restoring force for the nail pusher on the basis of reducing the friction force between the firing rod and the inner wall of the metal pipe, ensuring The device has good reliability and comfortable use.
附图说明Description of drawings
图1为本发明实施例1提供的一种可选的击发杆机构的内部示意图；Fig. 1 is an internal schematic diagram of an optional firing lever mechanism provided by Embodiment 1 of the present invention;
图2为本发明实施例1提供的一种可选的击发杆机构的外部示意图；Fig. 2 is an external schematic diagram of an optional firing lever mechanism provided by Embodiment 1 of the present invention;
图3为本发明实施例1提供的一种可选的包括第一导向条的击发杆的示意图；FIG. 3 is a schematic diagram of an optional firing rod including a first guide strip provided by Embodiment 1 of the present invention;
图4为本发明实施例1提供的一种可选的包括第二导向条的击发杆的示意图；Fig. 4 is a schematic diagram of an optional firing rod including a second guide strip provided by Embodiment 1 of the present invention;
图5为本发明实施例1提供的一种可选的包括第三导向条的上支撑板的示意图；Fig. 5 is a schematic diagram of an optional upper support plate including a third guide strip provided by Embodiment 1 of the present invention;
图6为本发明实施例1提供的一种可选的包括第四导向条的下支撑板的示意图；FIG. 6 is a schematic diagram of an optional lower support plate including a fourth guide strip provided by Embodiment 1 of the present invention;
图7为本发明实施例1提供的一种可选的击发杆、上支撑板及下支撑板的装配示意图；Fig. 7 is a schematic diagram of assembly of an optional firing rod, upper support plate and lower support plate provided by Embodiment 1 of the present invention;
图8为图7的箭头方向所示的剖面示意图。FIG. 8 is a schematic cross-sectional view shown in the direction of the arrow in FIG. 7 .
下面具体实施方式用于进一步说明但不限于本发明，下面实施例仅为本发明一种优选地实施方式。The following specific embodiments are used to further illustrate but not limit the present invention, and the following example is only a preferred embodiment of the present invention.
具体实施方式Detailed ways
实施例1：Example 1:
本发明实施例如图1至图8所示。Embodiments of the present invention are shown in FIGS. 1 to 8 .
如图1及图2所示，本发明实施例提供的吻合器的击发杆机构包括击发杆1、上支撑板3、下支撑板2、弯管4、击发手柄5、推钉器6和击发复位弹簧7。上述上支撑板3和上述下支撑板2组装在上述击发杆1上组成击发杆部件，上述击发杆部件安装在上述弯管4内，上述推钉器6通过卡扣连接安装在上述击发杆1的前端，上述推钉器6在上述击发杆1的推动力和拉力作用下做往返运动。上述击发复位弹簧7安装在上述击发杆1的尾部，上述击发手柄5位于上述击发杆1的尾部为上述击发杆1提供推动力。击发时上述击发杆1压缩弹簧，击发完成后在弹簧的回复力下上述击发杆1和上述击发手柄5复位。As shown in Figures 1 and 2, the firing lever mechanism of the stapler provided by the embodiment of the present invention includes a firing lever 1, an upper support plate 3, a lower support plate 2, a curved tube 4, a firing handle 5, a nail pusher 6 and a firing lever. Return spring 7. The above-mentioned upper support plate 3 and the above-mentioned lower support plate 2 are assembled on the above-mentioned firing rod 1 to form a firing rod part, and the above-mentioned firing rod part is installed in the above-mentioned elbow 4, and the above-mentioned nail pusher 6 is installed on the above-mentioned firing rod 1 through a buckle connection The front end of the above-mentioned nail pusher 6 is reciprocating under the action of the driving force and the pulling force of the above-mentioned firing rod 1. The firing return spring 7 is installed at the tail of the firing rod 1 , and the firing handle 5 is located at the tail of the firing rod 1 to provide driving force for the firing rod 1 . When firing, the above-mentioned firing rod 1 compresses the spring, and after the firing is completed, the above-mentioned firing rod 1 and the above-mentioned firing handle 5 are reset under the restoring force of the spring.
可选的，如图3及图4所示，上述击发杆1上设有第一导向条11和第二导向条12。降低了上述击发杆1与上述弯管4之间产生的摩擦力，确保上述击发杆1在器械击发完成后快速复位。Optionally, as shown in FIG. 3 and FIG. 4 , the firing rod 1 is provided with a first guide strip 11 and a second guide strip 12 . The frictional force generated between the above-mentioned firing rod 1 and the above-mentioned elbow 4 is reduced, so as to ensure that the above-mentioned firing rod 1 returns quickly after the firing of the instrument is completed.
可选的，如图5及图6所示，上述击发杆机构还包括下支撑板2和上支撑板3，上述下支撑板2上设有第三导向条21，上述上支撑板3上设有第四导向条31。进一步降低了上述击发杆1与上述弯管4之间产生的摩擦力，确保上述击发杆1在器械击发完成后快速复位。Optionally, as shown in Figure 5 and Figure 6, the above-mentioned firing lever mechanism also includes a lower support plate 2 and an upper support plate 3, the above-mentioned lower support plate 2 is provided with a third guide strip 21, and the above-mentioned upper support plate 3 is provided with There is a fourth guide strip 31 . The frictional force generated between the above-mentioned firing rod 1 and the above-mentioned elbow 4 is further reduced, so as to ensure that the above-mentioned firing rod 1 returns quickly after the firing of the instrument is completed.
可选的，如图7及图8所示，上述第一导向条11和上述第二导向条12位于上述击发杆1的两侧。均匀分布，效果更佳。Optionally, as shown in FIG. 7 and FIG. 8 , the above-mentioned first guide bar 11 and the above-mentioned second guide bar 12 are located on both sides of the above-mentioned firing rod 1 . Distribute evenly for better results.
可选的，如图7及图8所示，上述第一导向条11和上述第二导向条12相对于上述击发杆1的中心线13对称。Optionally, as shown in FIG. 7 and FIG. 8 , the above-mentioned first guide bar 11 and the above-mentioned second guide bar 12 are symmetrical with respect to the center line 13 of the above-mentioned firing rod 1 .
可选的，如图6及图7及图8所示，上述第三导向条21位于上述下支撑板2外表面的中间。Optionally, as shown in FIG. 6 , FIG. 7 and FIG. 8 , the third guide bar 21 is located in the middle of the outer surface of the lower support plate 2 .
可选的，如图5及图7及图8所示，上述第四导向条31位于上述上支撑板3外表面的中间。Optionally, as shown in FIG. 5 , FIG. 7 and FIG. 8 , the fourth guide bar 31 is located in the middle of the outer surface of the upper support plate 3 .
可选的，上述第一导向条11和上述第二导向条12为圆形导向条。圆形导向条设计使接触摩擦力更小。Optionally, the first guide bar 11 and the second guide bar 12 are circular guide bars. The circular guide bar design makes contact friction less.
可选的，上述第三导向条21和上述第四导向条31为圆形导向条。Optionally, the third guide bar 21 and the fourth guide bar 31 are circular guide bars.
可选的，上述吻合器为管型吻合器、直线型吻合器或包皮环切吻合器。具体的工作过程如下：Optionally, the aforementioned stapler is a tubular stapler, a linear stapler or a circumcision stapler. The specific working process is as follows:
第一步，击发时操作者给上述击发手柄5施加击发力，上述击发手柄5将击发力传递给上述击发杆1，推动上述击发杆1往前运动。In the first step, the operator applies firing force to the above-mentioned firing handle 5 when firing, and the above-mentioned firing handle 5 transmits the firing force to the above-mentioned firing rod 1 to push the above-mentioned firing rod 1 to move forward.
第二步，上述击发杆1在获得推动力之后受上述弯管4形状的影响，上述击发杆1产生塑性变形和往前运动。随着上述击发杆1的变形和运动，上述击发杆1的左右两侧凸起的导向条、上支撑板的上侧导向条和下支撑板的下侧导向条与弯管内壁产生接触，引起接触摩擦，由于导向条减小了上述击发杆1与上述弯管4内壁的接触面积，大大降低了上述击发杆1与上述弯管4的摩擦力，从而保证上述击发杆1在上述弯管4内运动顺畅。In the second step, the above-mentioned firing rod 1 is affected by the shape of the above-mentioned elbow 4 after obtaining the driving force, and the above-mentioned firing rod 1 produces plastic deformation and moves forward. With the deformation and movement of the firing rod 1, the protruding guide strips on the left and right sides of the firing rod 1, the upper guide strips of the upper support plate and the lower guide strips of the lower support plate come into contact with the inner wall of the elbow, causing Contact friction, because the guide bar reduces the contact area between the above-mentioned firing rod 1 and the inner wall of the above-mentioned elbow 4, greatly reducing the friction between the above-mentioned firing rod 1 and the above-mentioned elbow 4, thereby ensuring that the above-mentioned firing rod 1 is in the above-mentioned elbow 4 Smooth inner movement.
第三步，在上述击发杆1往前运动的同时，上述击发杆1挤压上述击发弹簧7产生压缩变形，上述击发杆1受到上述击发弹簧7的反向弹力。当击发完成时，上述击发杆1受到的击发力终止，上述击发杆1在上述击发复位弹簧7的弹力作用下往回运动，并推动上述击发手柄5也复位。In the third step, when the firing rod 1 moves forward, the firing rod 1 presses the firing spring 7 to produce compression deformation, and the firing rod 1 is subjected to the reverse elastic force of the firing spring 7 . When the firing is completed, the firing force received by the above-mentioned firing rod 1 is terminated, and the above-mentioned firing rod 1 moves back under the elastic force of the above-mentioned firing return spring 7, and pushes the above-mentioned firing handle 5 to reset.
第四步：上述击发杆1在复位的同时通过卡扣机构将上述推钉器6复位，器械完成击发。Step 4: When the above-mentioned firing rod 1 is reset, the above-mentioned nail pusher 6 is reset through the buckle mechanism, and the device completes the firing.
本发明实施例的技术方案降低了击发杆与弯管的作用力，降低了击发力和击发回复力，从而提高了器械的可靠性和使用舒适性。本发明实施例的方案结构简单，器械击发力小，可靠高，器械击发舒适性好。The technical solution of the embodiment of the present invention reduces the force of the firing rod and the bent pipe, reduces the firing force and firing recovery force, thereby improving the reliability and use comfort of the device. The scheme of the embodiment of the present invention has simple structure, small firing force of the instrument, high reliability, and good firing comfort of the instrument.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810269230.6ACN108542456A (en) | 2018-03-29 | 2018-03-29 | A kind of stapler with percussion linkage |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810269230.6ACN108542456A (en) | 2018-03-29 | 2018-03-29 | A kind of stapler with percussion linkage |
| Publication Number | Publication Date |
|---|---|
| CN108542456Atrue CN108542456A (en) | 2018-09-18 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810269230.6APendingCN108542456A (en) | 2018-03-29 | 2018-03-29 | A kind of stapler with percussion linkage |
| Country | Link |
|---|---|
| CN (1) | CN108542456A (en) |
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| CN200939154Y (en)* | 2006-08-03 | 2007-08-29 | 瑞奇外科器械(北京)有限公司 | Automatic restorable security device of anastomat for surgery |
| US20100051668A1 (en)* | 2008-09-03 | 2010-03-04 | Milliman Keith L | Surgical instrument with indicator |
| CN101912287A (en)* | 2010-08-13 | 2010-12-15 | 李东瑞 | Linear type anastomat |
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| CN107049383A (en)* | 2017-06-12 | 2017-08-18 | 常州艾隆精密机械有限公司 | A kind of air shuttle valve for abdominal cavity puncture outfit |
| CN212729891U (en)* | 2018-03-29 | 2021-03-19 | 盈甲医疗器械制造（上海）有限公司 | Anastomat with firing rod mechanism |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | Application publication date:20180918 | |
| RJ01 | Rejection of invention patent application after publication |