CN102908176B - Arc-shaped cutting stitching instrument - Google PatentsArc-shaped cutting stitching instrument Download PDF
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- CN102908176B CN102908176B CN 201210432363 CN201210432363A CN102908176B CN 102908176 B CN102908176 B CN 102908176B CN 201210432363 CN201210432363 CN 201210432363 CN 201210432363 A CN201210432363 A CN 201210432363A CN 102908176 B CN102908176 B CN 102908176B
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 本发明涉及医疗器械技术领域，特别是涉及一种弧形切割缝合器。  The present invention relates to the technical field of medical devices, particularly to a curved cutter stapler.
背景技术 Background technique
 在医学外科手术中，自从20世纪60年代的第一把缝钉类产品出现以来，医用缝合器已成为辅助刀口缝合过程中必不可少的一种医疗器械。  In medical surgery, the staple since the first products in the 1960s the emergence of medical stapler auxiliary edge stitching process has become essential for a medical device. 各种外科用缝合器正在外科手术中被广泛地应用于缝合人体消化道组织、呼吸道组织以及血管组织。 A variety of surgical staplers are surgical sutures are widely used in the human digestive tract tissue, respiratory tissue and vascular tissue. 缝合器的应用可以减少手术时间，提高手术质量。 Stapler application may reduce operation time and improve the quality of surgery. 它们通常被用于消化道中食管、胃、十二指肠、小肠、结肠和直肠等端端、端侧及侧侧缝合手术或痔切除以及胃幽门造口等形成通道或闭合切口的手术，也被应用于呼吸道中肺和气管等部位和血管组织的缝合手术，特别适用于显露和操作困难的器官和组织的缝合。 They are usually used in the digestive tract esophagus, stomach, duodenum, small intestine, colon and rectum end to end, side to side and end stapling or surgical removal of hemorrhoids and the like pyloric passage or stoma surgery incision is closed, and surgical suture is applied to the respiratory tract and other parts of the lungs and trachea and vascular tissue, especially for stitching organs and tissues exposed and difficult operation.
 医用缝合器中一种常用的产品是直线缝合器，主要应用于缝合腔体组织，缝合口整齐且牢固，不容易发生缝合口出血的现象。  A common medical stapler linear stapler products are mainly used in suturing tissue cavity, suture neatly and securely, not prone to bleeding phenomenon suture. 最初的直线缝合器只有缝合的功能，在组织缝合完毕后，需要医生手动将多余组织割掉，而医生不容易掌握切割线与缝合线之间的距离，进而导致切割线不整齐，发生漏血的风险极大。 The initial linear stapling stapler function only after completion of stapling tissue, doctors need to manually cut off the excess tissue, and the doctor is not easy to grasp the distance between the cutting line and a suture, leading to irregular cutting lines, endoleak occurs the risky.
 因此，针对于人体特殊部位的手术，研发出了直接带有切割刀的缝合器，在钉仓上开设多排钉孔和一个刀槽，刀槽的两侧各有至少一排钉孔，可以起到缝合同时切割的作用。  Accordingly, special parts for the operation of the human body, directly developed a stapler with a dicing blade, and defines a plurality of rows of nail holes in the staple cartridge sipe, the sipes on both sides of each of the at least one row of staples hole, the suture can be cut simultaneously play a role. 例如强生公司生产的凯途，其一定程度上弥补了直线缝合器的缺点，可以同时完成缝合和切割的动作，且器械杆较长，设有握把和扳机，方便医生操作，相比于传统直线缝合器，这种器械能够大大节省医生的手术时间，减少出血量，提高手术成功率。 Kay way of example, Johnson & Johnson, which to some extent compensate for the shortcomings of the linear stapler can be accomplished simultaneously cutting and stapling operation, and a long lever device, and is provided with a trigger grip, convenient for doctors to operate as compared to conventional linear stapler, which device can greatly save the operation time of the physician, reduce bleeding, and improve the success rate.
 但是，目前现有的切割缝合器，缝合面都为一平面，相同空间切割尺寸较小；当手术切口较长时，完成一次缝合时，往往还需要再补一次才能够得到合适的缝线长度，以保证手术切口完全缝合。  However, currently available stapler, a suture surfaces are planar, the same spatial smaller cut size; when long incision surgery, a suture is completed, often also need to be able to get a fix suitable suture length to ensure complete surgical incision sutured. 此外，目前常用的切割缝合器中切刀的刀刃都平行于缝合线的长度方向，切刀从刀槽内部平推出去，顶在抵钉座上与切刀对应的抵刀槽上，从而将需要离断的组织切开，由于钳口中被夹紧的组织的厚度可能不一致，采用这种方式很容易造成切割不彻底，并且操作起来比较费力。 Further, currently used in the stapler cutter blade parallel to the longitudinal direction of the suture, from the inside of the flat blade pushed out sipe, on top of the staple base and the cutter abutting against corresponding sipe, whereby tissue cut off from the need, since the thickness of the tissue clamped in the jaws may be inconsistent, in this way it is easy to cause cleavage is not complete, and the operation is laborious. 同时由于缝钉较多，缝合尺寸较长，缝钉穿过组织时受到的阻力较大，特别是钉仓组件的下部容易发生偏摆，使缝钉不能正确成形，容易使缝合口出血，造成手术失败。 And because staples more, longer suture size, when subjected to staple tissue through the greater resistance, in particular the lower portion of the cartridge assembly is prone to deflection, can not be properly formed staples, suture bleeding easily, resulting in surgical failure.
 由此可见，现有技术中的缝合器在结构和使用上存在明显的不足及缺陷，亟待进一步改进。  Thus, the prior art staplers obvious shortcomings and defects in the structure and use urgent need to further improve. 因此如何创设一种可在相同缝合长度下减小器械尺寸，且结构简单、装配方便、使用安全、击发力小且缝钉成型好的弧形切割缝合器，实属当前研发的重要课题之一。 Therefore, how to create an identical decrease in the length stapling apparatus size and simple in structure, easy assembly, safe, small firing force and a good arc shaped staple stapler, it is an important subject of current research and development One.
 本发明要解决的技术问题是提供一种弧形切割缝合器，使其在相同缝合长度下，器械尺寸较小，器械的击发力更小且缝钉成型更好，从而克服现有技术的不足。  The present invention is to solve the technical problem of providing a curved cutter stapler, stapling it at the same length, the smaller the size of the instrument, the instrument firing force smaller and better shaped staple, now to overcome there are technical deficiencies.
 为解决上述技术，本发明一种弧形切割缝合器，包括支架板、钳口支架、钉仓组件、抵钉座、连接组件、推进机构和击发机构，所述的抵钉座以及钉仓组件与抵钉座的对应面为弧形。  To achieve the above, the present invention is one kind of curved cutter stapler comprises a bracket plate, the jaw holder, the cartridge assembly, the anvil, the connection assembly, propulsion mechanism and firing mechanism, and the anvil the corresponding surface of the cartridge assembly and the anvil is arcuate.
 作为本发明的进一步改进，所述的钉仓组件包括钉仓本体、缝钉、推钉片、切割刀和推钉底板:所述的推钉底板一侧为弧形；所述的钉仓本体前部设有弧形缝钉安装腔，后部与推钉底板固定连接并形成弧形的推钉片及切割刀安装腔，缝钉安装腔与推钉片及切割刀安装腔之间设有切刀滑槽和推钉孔；所述的缝钉，沿弧线排布在钉仓本体的缝钉安装腔内；所述的推钉片底部设有倒角，多个推钉片沿弧线分布于推钉片及切割刀安装腔内，并可沿垂直于弧线切线的方向探出钉仓本体的推钉孔；所述的切割刀安装于推钉片及切割刀安装腔的一端，刀体探出切刀滑槽，底部设有与推钉片的倒角对应的楔形结构，并可在连接组件带动下沿推钉片及切割刀安装腔和切刀滑槽滑动。  As a further improvement of the present invention, the cartridge assembly includes a cartridge body, a staple, the staple pushing plate, the cutting blade and the staple pushing plate: one side of the staple pushing plate is arcuate; the the front portion of the staple cartridge body is provided with an arcuate mounting cavity staple, and the staple pushing the rear plate is fixedly connected and form the staple pushing plate and arcuate cutting blade mounting cavity, staple staple sheet accommodating chamber and the push chamber of the cutting blade mounted room with sliding cutter and the push nail holes; said staples, arranged along an arc chamber mounting the staple cartridge in the staple main body; a chamfer staple pushing said bottom plate, a plurality of staple pushing distributed along an arc sheet staple pushing plate and cutting blade mounting cavity, and push staple stuck in the holes the staple cartridge body direction perpendicular to the tangent of the arc; the cutting blade is attached to the staple pushing plate and cutting blade mounted One end of the cavity, the cutter blade stuck chute wedge structure provided with chamfered staple pushing plate corresponding to the bottom, and driven by the staple pushing plate and along a cutting blade mounted in the chamber and connected to the cutter assembly slide chute .
 所述的钳口支架上设有弧形抵钉座安装腔以及定位板安装孔；所述的抵钉座安装在钳口支架的抵钉座安装腔内，一端被钳口支架卡住，另一端设有限位孔；所述的定位板安装孔内安装有定位板，该定位板穿过抵钉座的限位孔，一端设有卡住抵钉座的定位槽，另一端通过堵块固定在钳口支架内。  provided on said anvil jaw holder arcuate mounting cavity and a positioning plate mounting holes; said anvil mounted in the cavity of the anvil jaw mounting bracket, one end of the card holder jaws live, and the other end is provided with limiting hole; positioning plate is attached to the mounting hole of the positioning plate, the positioning plate against the stopper hole through the anvil, the anvil end with stuck positioning groove, the other end is blockout fixed in the jaw holder.
 所述的抵钉座和抵钉座安装腔之间还安装有垫板。 Between the anvil and the anvil is mounted in the cavity of the  plate is also mounted.
 所述的钉仓本体内还安装有略探出钉仓组件表面的定位针，并在抵钉座上设有对应的定位针孔。  The staple cartridge body is also mounted locating pin slightly stuck staple cartridge assembly surface, and a pinhole positioned at the corresponding seat against the staple.
 所述的钉仓本体的推钉片及切割刀安装腔内设有与切割刀初始、终止位置对应的限位凸起。  The staple cartridge body, the staple pushing plate and cutting blade is provided with cutting blade mounting cavity of the initial, the corresponding final position limiting projection.
 所述的推钉底板两端通过销钉与钉仓本体固定连接。  The base ends of the staples pushed by a pin fixedly connected with the cartridge body.
 所述的推钉片及切割刀安装腔内还设有限制切割刀前后位置的限位台阶。  The sheet staple is pushed and also a cutting blade mounting cavity stopper step to limit the cutting blade longitudinal position.
 所述的推钉底板沿弧线开设有前后通槽，所述的连接组件包括:一对与支架板前后滑动连接的组件夹板；安装在组件夹板之间并可相对前后滑动的推钉板；以及安装在组件夹板前端，顶端穿过推钉底板的通槽并与切割刀底部相抵，可在推钉板推动下在推钉底板的通槽内转动，进而带动切割刀滑动的切刀拨块。  The staple pushing plate defines a longitudinal through groove along an arc, said connection assembly comprising: a pair of front and rear clamp assembly plate slidably connected to the bracket; mounted rotatable relative longitudinal sliding between the jaws to push the components nail plate; and a jaw assembly mounted to the distal end, through the top of the staple pushing plate and the through-groove cutting blade against the bottom, a through slot may be staple pushing plate is rotated at a staple pushing plate driven so as to drive the cutting blade slides cut dial knife block.
 所述的切刀拨块通过转动销安装在组件夹板前端，并在切刀拨块与组件夹板之间安装有复位拉簧。  dial of the cutter block by turning the pin clamp assembly mounted in the distal end, and a tension spring attached between the reset and the actuating piece cutter assembly splint.
 采用以上设计后，本发明与现有技术相比有以下有益效果:  With the above design, the present invention over the prior art has the following advantageous effects:
 1、本发明弧形切割缝合器，在具有相同的缝合长度下，器械尺寸减小，器械的击发力更小且缝钉成型更好。  1, curved cutter stapler according to the present invention, the length of the suture at the same, reduced the size of the instrument, the instrument firing force of staple forming smaller and better.
 2、本发明弧形切割缝合器结构简单、装配方便、使用安全，在击发机构的作用下，可同时实现缝合和切割动作。  2, the present invention is curved cutter stapler simple structure, easy assembly, safe to use, under the action of the firing mechanism, allows the simultaneous cutting and stapling operation.
 下面通过附图和实施例，对本发明的技术方案做进一步的详细描述。  The following drawings and embodiments, detailed description of the further aspect of the present invention.
附图说明 BRIEF DESCRIPTION
 上述仅是本发明技术方案的概述，为了能够更清楚了解本发明，以下结合附图与具体实施方式对本发明作进一步的详细说明。  The foregoing is merely an overview of the technical solution of the present invention, in order to more clearly understand the present invention, in conjunction with the accompanying drawings and the following specific embodiments will be further detailed description of the present invention.
 图1是本发明弧形切割缝合器的结构示意图。  FIG. 1 is a structural diagram of the present invention, the arcuate cutting stapler.
 图2是本发明弧形切割缝合器的钳口支架结构示意图。  FIG. 2 is a schematic view of the jaw structure of the stent of the present invention curved cutting stapler.
 图3是本发明弧形切割缝合器的钳口支架及抵钉座的组合结构示意图。  FIG. 3 is a diagram showing the structure of a combination of curved cutter stapler jaws scaffolds of the invention and the anvil.
 图4是本发明弧形切割缝合器的钳口支架及抵钉座的分解结构示意图。  FIG. 4 is a curved cutter stapler according to the present invention, a jaw holder and the breakdown structure schematic of the anvil abutment.
 图5是本发明弧形切割缝合器的钉仓组件的结构示意图。  FIG. 5 is a schematic view of curved cutter stapler cartridge assembly of the present invention.
 图6是本发明弧形切割缝合器的钉仓本体的结构示意图。  FIG. 6 is a schematic view of curved cutter stapler the staple cartridge body of the present invention.
 图7是本发明弧形切割缝合器的切割刀结构示意图。  FIG. 7 is a schematic diagram of the present invention cutting an arcuate cutting blade stapler structure.
 图8是本发明弧形切割缝合器切割完成的状态示意图。  FIG. 8 is a schematic diagram of the present invention cutting an arcuate cutting stapler completed.
 图9是本发明弧形切割缝合器的连接组件结构示意图。  FIG. 9 is a schematic view of the connection assembly structure of the present invention, the arcuate cutting stapler.
 图10是本发明弧形切割缝合器的连接组件的分解结构示意图。  FIG. 10 is a schematic exploded structural curved cutter stapler connector assembly of the invention.
具体实施方式 Detailed ways
 请参阅图1所示，本发明一种弧形切割缝合器，是在现有切割缝合器支架板、钳口支架1、钉仓组件2、抵钉座、连接组件4、推进机构和击发机构6结构的基础上，将抵钉座以及钉仓组件与抵钉座的对应面均设计为弧形。  Referring to FIG. 1, the present invention provides a curved cutter stapler, in the conventional stapler holder plate, a jaw holder, the cartridge assembly 2, anvil, the connection assembly 4, advancing means 6 and the base structure of the firing mechanism, the anvil and the staple cartridge assembly and the corresponding surface of the anvil are curved design.
 以下为了更清楚的描述本申请的结构特征，将以钳口闭合过程中，连接组件的行进方向(即图1所示左方)为“前”，其相反方向(即图1所示右方)为“后”，来进行说明。  For the clearer description of the structural features of the present application, will during jaw closure, the traveling direction of the connecting components (i.e. left as shown in FIG. 1) is "front" and the opposite direction (i.e., in FIG. 1 shown to the right) as "rear", will be described.
 请参阅图2所示，本发明的钳口支架I内侧设有弧形抵钉座安装腔11，并在前下方设置定位板安装孔12。  Please refer to FIG. 2, the jaw holder is provided with inner side I of the present invention, the anvil arcuate mounting cavity 11, and a positioning hole 12 below the front mounting plate.
 请参阅图3、图4所示，抵钉座31安装在钳口支架I的抵钉座安装腔11内，其一端被钳口支架I卡住，另一端设有限位孔312。  Please refer to FIG. 3, FIG. 4, the anvil 31 is mounted within the jaws of the anvil holder I installation chamber 11, one end of which is stuck I jaw holder, the other end of the limiting hole 312 is provided. 钳口支架I的定位板安装孔12内安装有定位板32，该定位板32穿过抵钉座31的限位孔312，后端设有卡住抵钉座31的定位槽321，限制抵钉座31的左右位置，前端通过堵块33固定在钳口支架I的定位板安装孔12内。 I jaw positioning plate bracket mounting hole 12 is attached to the positioning plate 32, the positioning plate 32 through the limiting hole 312 of the anvil 31, the rear end 321 is provided with a positioning groove 31 of the anvil jammed, limit contact left and right position of the anvil body 31, the front end of the positioning block 33 by blocking plate fixed to the mounting hole in the jaw holder I 12.
 此外，还可在抵钉座31和抵钉座安装腔11之间安装抵钉座垫板34，抵钉座垫板34设有与抵钉座的限位孔312对应的孔。  Further, also in the staple against the anvil mounting plate 34 between the seat cushion 31 and anvil mounting cavity 11, the cushion plate 34 against the staple anvil is provided with holes corresponding to the holes 312 limit.
 安装时，先将定位板32放在钳口支架I中的定位板安装孔12中，接着将抵钉座31与抵钉座垫板34 —起放入钳口支架I中的抵钉座安装孔11中，使定位板32穿过抵钉座垫板34的孔以及抵钉座的限位孔312，之后将堵块33插入钳口支架I中的定位板安装孔32中，在堵块33的支撑下，定位板32向上运动，定位板32的定位槽321卡住抵钉座垫板34和抵钉座31，抵钉座31安装完成。  When installed, the positioning plate 32 on the first jaw I in the holder positioning plate mounting hole 12, then the anvil 31 and the staple against the cushion plate 34 - since I is placed in contact jaw holder anvil mounting hole 11, the positioning plate 32 through the aperture 34 against the nail plate and the seat cushion abutting the stopper hole anvil 312, after block 33 is inserted into the jaw holder block I is the positioning plate 32 in the mounting hole, in block support block 33, the positioning plate 32 moves upward, the positioning plate 32 of the positioning groove 321 against the staple jammed cushion plate 34 and the anvil 31, the anvil 31 is installed.
 请参阅图5所示，本发明的钉仓组件可包括钉仓本体21、缝钉、切割刀22、推钉片23和推钉底板24。  Please refer to FIG. 5, the cartridge assembly of the present invention may comprise a staple cartridge body 21, the staples, the cutting blade 22, push the staple sheet 23 and the bottom plate 24 pushes the staple.
 推钉底板24的一侧为弧形，其两端可通过钉仓本体21上、下部设置的销孔214、215以及对应销钉，固定安装在钉仓本体21内。  side of the staple pushing plate 24 is curved, both ends thereof by the staple cartridge body 21, the lower portion of the pin holes 214, 215 and the corresponding pins provided, fixedly mounted within the staple cartridge body 21.
[0041 ] 请配合参阅图6所示，钉仓本体21前部设有弧形缝钉安装腔211，后部与推钉底板24固定连接并形成弧形的推钉片及切割刀安装腔213，缝钉安装腔211与推钉片及切割刀安装腔213之间设有切刀滑槽和推钉孔，推钉孔沿弧线分布于切刀滑槽两侧。  Please referring to FIG illustrated, the staple cartridge body 21 is provided with an arcuate front portion mounting the staple cavities 2116, and rear plate 24 is fixedly connected staple push and push the staple sheet formed arcuate cutting blade and the mounting cavity 213 , staple cutter mounting cavity provided between the chute and the nail holes and push the staple pushing plate and cutting blade mounting cavities 213,211, pushing the nail holes distributed along an arc chute on both sides of the cutter. 。 .
 缝钉沿弧线排布在钉仓本体21的缝钉安装腔211内，推钉片23底部设有倒角，多个推钉片23沿弧线分布于推钉片及切割刀安装腔213内，底部与推钉片底板24的弧形面相抵，顶部可沿垂直于弧线切线的方向探出钉仓本体21的推钉孔。  staples arranged along an arc in the staple cartridge mounting cavity 21 of the main body 211, a chamfer at the bottom to push the staple sheet 23, a plurality of staple pushing pieces 23 distributed along an arc cutting blade and the staple pushing plate the mounting cavity 213, and a bottom sheet staple pushing plate against the arcuate surface 24, the top of the hole may be stuck staple push the staple cartridge body 21 along a direction perpendicular to the tangent of the arc.
 请参阅图7所示，切割刀22包括切刀底座221和刀体，安装于推钉片及切割刀安装腔213的一端，刀体探出切刀滑槽。  Please refer to FIG. 7, the cutting blade 22 comprises a base 221 and a cutter blade, attached to the staple pushing plate and a cutting blade mounted at one end 213 of the chamber, a cutter blade stuck chute. 此外，钉仓本体21的推钉片及切割刀安装腔213内还可设有限制切割刀22前后位置的限位台阶，并分别设有与切割刀22的初始、终止位置对应的限位凸起216。 Further, the staple cartridge body 21 to push the staple sheet and the cutting blade of the mounting cavity 213 may also be provided with a stepped stop limiting the longitudinal position of the cutting blade 22, and are respectively provided with the initial stopper protrusion of the cutting blade 22, corresponding to the end position 216 onwards. 切刀底座221的侧面设有和钉仓本体21内的限位凸起216相配合的凹槽222，切割刀底座的前端为楔形结构223，该楔形结构223与推钉片23的倒角对应，在连接组件带动切割刀22沿推钉片及切割刀安装腔213和切刀滑槽滑动时，推钉片23在楔形结构223的作用下探出钉仓本体21的推钉孔。 A side cutter provided with the base 221 and the stopper 21 within the staple cartridge body projections 216 cooperating groove 222, the front end of the cutting blade 223 of the base structure of a wedge, the wedge-shaped structure 223 and the staple pushing plate 23 corresponding to the chamfered when the connection assembly 22 to drive the cutting blade along the staple pushing plate and the mounting cavity 213 and the cutting blade cutter slide chute, the staple pushing plate 23 pushes the staple holes stuck staple cartridge body 21 under the action of the wedge-shaped structure 223.
 安装时，首先将推钉片23对应推钉孔安装于推钉片及切割刀安装腔213内，再将切割刀22安装于钉仓本体推钉片及切割刀安装腔213的上端，通过切割刀22上所设的凹槽222和钉仓本体21上对应设置的限位凸起216的配合，将切割刀22固定。 The upper end of  When installed, the first sheet 23 corresponds to push the staple pushing the nail hole in the nail-pushing plate mounted cutting blade and the mounting cavity 213, and then the cutting blade 22 is mounted on the cartridge body to push the staple sheet and the mounting cavity 213 of the cutting blade , and the limit on the staple cartridge body 21 corresponding to the fitting protrusion 216 is provided by a cutting blade 22 provided on the recess 222, the cutting blade 22 is fixed. 最后将推钉底板24沿钉仓本体后侧插入钉仓本体21内，推钉底板24上的销孔和钉仓本体21的销孔对应，配合安装销钉，将推钉底板24固定于钉仓本体21内。 Finally, push the rear side of the staple cartridge body 24 along the staple plate 21 is inserted into the staple cartridge body, the staple pushing plate and the pin hole on the cartridge body 24 corresponding to the pin hole 21 with the mounting pins, the push plate 24 is fixed to the staple cartridge within the body 21.
 此时，切刀底座的上端端面和钉仓本体21内的限位台阶相接触，切刀底座和推钉底板24弧形面相抵，保证切割刀22通过切刀底座在限位台阶和推钉底板弧形面形成的轨道内实现滑动。  In this case, the limit in the step 21 and the upper end surface of the staple cartridge body in contact with the cutter base, the arcuate surface 24 of the base and the cutting blade pushes the staple against the bottom plate, the cutting blade 22 to ensure that the cutter base by limiting step in sliding movement of the inner rail and the staple pushing plate is formed of a curved surface.
 此外，还可在钉仓本体21内设置定位针安装腔212，并在定位针安装腔212内安装略探出钉仓组件表面的定位针25，再在抵钉座上设置对应的定位针孔311，以保证钉仓与抵钉座准确闭合。  Further, the staple cartridge may also be provided in the body 21 is positioned within the needle fitting bore 212, and positioning pins mounted slightly stuck surface of the cartridge assembly 25 is positioned within the needle fitting chamber 212, and then set in the corresponding seat against the staple locating pin holes 311, in order to ensure that the staple cartridge and the anvil closure accurately.
 使用时，切割刀22处在初始位置，切刀凹槽222与钉仓本体21上端的限位凸起216相吻合，使切割刀22固定于钉仓本体21的上端。  In use, the cutting blade 22 in its initial position, the cutter 21 and the stopper groove 222 of the upper end of the staple cartridge body 216 coincides with the projection, the cutting blade 22 is fixed to the upper end of the staple cartridge body 21. 在连接组件4的作用下，切割刀22可以沿钉仓本体内所设的限位台阶和推钉底板24的弧形面形成的轨道移动，同时楔形结构223与推钉片23的倒角相接触，推动推钉片23沿钉仓本体21上的推钉孔移动，推钉片23推出缝钉，进行组织的缝合和切割。 Under the action of the connecting assembly 4, and a step track movement limit staple pushing plate 22 can be moved cutting blade cartridge body established by the arcuate surface 24 is formed, while the wedge structure 223 and the staple pushing plate 23 relative to the chamfered contacting, pushing the push plate 23 in the staple cartridge body 21 on the staple pushing hole movement, push the staple sheet 23 Release staples, for stapling and cutting tissue.
 当切割刀22行进到钉仓本体21的下端时，请配合参阅图8所示，切割刀22上的凹槽222和钉仓本体21内下端的限位凸起相配合，完成切割与缝合操作，并限制切割刀22的进一步移动。  When the cutting blade 22 travels to the lower end of the cartridge body 21, please refer to FIG. 8 with the groove 22 on the cutting blade 222 and the lower end of the stopper 21 within the cartridge body projections cooperating cutting is completed and suturing operation, and limit further movement of the cutting blade 22.
 请配合参阅图9、图10所示，本发明控制钳口闭合以及切割刀22移动的连接组件4主要由一对组件夹板41、推钉板42以及切刀拨块43组成，对应的，在推钉底板24上开设有沿弧线延伸的前后通槽。  Please referring to FIG. 9, FIG. 10, the present invention controls the closing jaw 22 and the movable cutting blade assembly 4 are connected by a pair of main jaws assembly 41, the staple pushing plate 42 and the cutter blocks 43 composed dial, the corresponding and defines an arc extending along a longitudinal through slot 24 in the staple pushing plate.
 支架板的前端与钳口支架I固定连接，后端连接推动机构和击发机构。  The distal end of the jaw carrier plate is fixedly connected to the bracket I, the rear end of the pushing mechanism and the firing mechanism is connected. 组件夹板41与支架板44前后滑动连接，推钉板42安装在组件夹板41之间并可相对前后滑动。 Clamp assembly 41 and the front carrier plate 44 slidably connected staple pushing plate assembly 42 is mounted between opposed jaws 41 and slide back and forth. 切刀拨块43安装在组件夹板41前端，切刀拨块43的顶端穿过推钉底板24的通槽并与切割刀22底部刀背处相抵，切刀拨块43可在推钉板42推动下在推钉底板24的通槽内转动，进而带动切割刀22沿弧线滑动。 Dial cutter block 43 attached to the front clamp assembly 41, the cutter block is allocated to the top 43 of the staple pushing plate through the through-slot 24 and a bottom knife blade 22 against the cutting blade, the cutter 42 can be pushed aside in the block 43 to push the nail plate pushing the staple through the slot 24 of the bottom plate is rotated, thereby bringing the cutting blade 22 slidably along an arc.
 切刀拨块43可通过转动销45安装在组件夹板41的前端，并在切刀拨块43与组件夹板41之间安装有复位拉簧46。  dial the cutter block 43 by pivot pins 45 may be mounted on the front clamp assembly 41 and the actuating piece 43 has a cutting blade clamp assembly 46 is mounted between the tension spring 41 is reset. 此外，还可在组件夹板41的前下端设有与击发完成时切刀拨块43的位置对应的限位铆钉。 Further, the firing may be provided upon completion of the cutting blade 43 of the actuating piece corresponding to a position before the lower limit of the rivet clamp assembly 41.
 进一步具体来说，组件夹板41上设有闭合滑槽411，支架板上设有与组件夹板的闭合滑槽411位置对应的定位销。  Further specifically, the closure slide 411 is provided on the jaw assembly 41, the holder plate is provided with jaws closed and the chute assembly 411 positions corresponding to the positioning pin. 闭合滑槽411的长度应与钳口闭合过程中组件夹板41的行进距离相等。 The length of the chute 411 should be closed jaw closure assembly process is equal to the travel distance of the jaws 41. 较佳的，如图所示，在组件夹板41的前、后部各设有一个闭合滑槽411，更利于组件夹板41的平稳行进。 Preferably, as shown, prior to assembly of jaws 41, each provided with a closed rear chute 411, more conducive to smooth traveling clamp assembly 41.
 推钉板42上设有击发滑槽422,击发滑槽422的长度与钳口闭合及击发过程中，推钉板42行进的总距离相等，击发滑槽422与闭合滑槽411的设置位置对应，且前端齐平。  The staple pushing plate 42 is provided with firing chute 422, 422 of the firing chute length of jaw closure and firing process, the staple pushing plate 42 equal to the total distance traveled, the firing chute 422 and a closed chute 411 corresponding to the installation position, and flush with the front.
 更进一步的，还可在组件夹板41的中部设置滑动销412，并在推钉板42上设置与组件夹板41的滑动销412对应的轨迹槽421。  Still further, the pin 412 also slidably disposed in the middle of jaw assembly 41 and the staple pushing plate is provided with a slide pin 41 of the clamp assembly 42 of the groove track 412 corresponding to 421.
 闭合钳口时，首先握动击发手柄，击发手柄的力作用于推进组件，推进组件和连接组件4接触连接。  When closing the jaws, the first movable holding firing handle, a firing handle assembly for advancing force, and the connecting assembly 4 propulsion assembly contact connection. 此时，推进组件推动连接组件4所包括的组件夹板41和推钉板42，以及钉仓组件2，在组件夹板41和推钉板42上所设的闭合滑槽411和击发滑槽422的导向下，组件夹板41和推钉板42相对于支架板44整体向前移动，钉仓组件2相向于抵钉座发生移动，直至到达可击发的组织间隙，钳口闭合，松开击发手柄，击发手柄复位。 At this time, pushing propulsion assembly 42, the cartridge assembly and connecting assembly 4 comprises a clamp assembly 41 and staple pushing plate 2, the clamp assembly 41 and the staple pushing plate 42 provided on the closure and firing chute 411 of the chute 422 a lower guide, clamp assembly 41 and the staple pushing plate 42 relative to the whole carriage plate 44 moves forward, the cartridge assembly 2 opposed to the anvil from moving, until the tissue gap may reach the firing, jaw closure, release the firing handle, The firing handle return.
 然后再次握动击发手柄，推进组件作用于推钉板42，推动推钉板42相对于组件夹板41向前滑动，此时，组件夹板41上所设的滑动销412相对于推钉板42上所设的轨迹槽421从后滑动，推钉板42的击发滑槽422起到让位作用，使得推钉板42相对于组件夹板41向前移动。  and then re-firing the movable grip handle, propulsion assembly acting on the staple pushing plate 42, the slide pin 412 push the staple pushing plate 42 with respect to the forward sliding clamp assembly 41, at this time, the clamp assembly 41 is provided for pushing the staple the upper plate 42 is provided in the groove track 421 from the slide, firing chute 422 of the staple pushing plate 42 plays the role of giving way, so that the staple pushing plate 42 is moved forward relative to the clamp assembly 41.
 在击发过程中，推钉板42向前推动和其接触连接的切刀拨块43，使得切刀拨块43在所设转动销45和拉簧46的作用下发生逆时针转动，切刀拨块43推动切割刀22沿着钉仓本体21内的限位台阶和推钉底板24弧形面形成的轨道向下滑动，通过推钉片23推出缝钉，完成顺序缝合与切割。  In the firing process, the staple pushing plate 42 is pushed forward and the contact 43 connected to the cutter block dial, dial so that the cutter block 43 rotates counterclockwise under the action of the rotation pin 45 and the set of tension spring 46, track moving piece 43 push cutter blade 22 cut along the staple cartridge and the staple pushing body limiting step in the arcuate surface of the base 2124 is formed to slide downward, pushing the nail through the introduction of the staple sheet 23, stapling and cutting sequence is completed.
 切刀拨块43与组件夹板41下端铆钉接触，在铆钉的阻力作用下停止运动，击发完成后，当推钉板42退回时，切刀拨块在拉簧46的作用下，围绕转动销45旋转回到初始位置。  dial the cutter block 43 and the jaw assembly 41 contacts the lower end of the rivet, the resistance acts to stop the motion of the rivet, after the completion of the firing, when the staple pushing plate 42 is retracted, the knife actuating piece 46 of the tension spring surrounding the rotation pin 45 is rotated back to the initial position.
 以上所述，仅是本发明的较佳实施例而已，并非对本发明作任何形式上的限制，本领域技术人员利用上述揭示的技术内容做出些许简单修改、等同变化或修饰，均落在本发明的保护范围内。  The above are only preferred embodiments of the present invention only, not limitation of the present invention in any form, those skilled in the technical contents disclosed by the above made simple slight modifications, equivalent variations or modifications, are fall within the scope of the present invention.
Priority Applications (1)
|Application Number||Priority Date||Filing Date||Title|
|CN 201210432363 CN102908176B (en)||2012-11-02||2012-11-02||Arc-shaped cutting stitching instrument|
Applications Claiming Priority (1)
|Application Number||Priority Date||Filing Date||Title|
|CN 201210432363 CN102908176B (en)||2012-11-02||2012-11-02||Arc-shaped cutting stitching instrument|
|Publication Number||Publication Date|
|CN102908176A CN102908176A (en)||2013-02-06|
|CN102908176B true CN102908176B (en)||2014-12-24|
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|CN 201210432363 CN102908176B (en)||2012-11-02||2012-11-02||Arc-shaped cutting stitching instrument|
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|CN (1)||CN102908176B (en)|
Family Cites Families (4)
|Publication number||Priority date||Publication date||Assignee||Title|
|US20080169332A1 (en) *||2007-01-11||2008-07-17||Shelton Frederick E||Surgical stapling device with a curved cutting member|
|US8388647B2 (en) *||2009-10-28||2013-03-05||Covidien Lp||Apparatus for tissue sealing|
|CN102228386B (en) *||2010-09-16||2012-11-07||北京中法派尔特医疗设备有限公司||Forceps opening assembly with guiding structure and stitching instrument adopting forceps opening assembly|
|CN203017018U (en) *||2012-11-02||2013-06-26||北京中法派尔特医疗设备有限公司||Arc-shaped cutting stitching device|
- 2012-11-02 CN CN 201210432363 patent/CN102908176B/en active IP Right Grant
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