WO2021031989A1 - 用于吻合器的推刀杆助力机构和吻合器 - Google Patents

用于吻合器的推刀杆助力机构和吻合器 Download PDF

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Publication number
WO2021031989A1
WO2021031989A1 PCT/CN2020/109090 CN2020109090W WO2021031989A1 WO 2021031989 A1 WO2021031989 A1 WO 2021031989A1 CN 2020109090 W CN2020109090 W CN 2020109090W WO 2021031989 A1 WO2021031989 A1 WO 2021031989A1
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WO
WIPO (PCT)
Prior art keywords
booster
extension
pusher bar
connecting mechanism
bar assembly
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PCT/CN2020/109090
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English (en)
French (fr)
Inventor
舒拓
Original Assignee
康奇舒宁(苏州)医疗科技有限公司
舒拓
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Application filed by 康奇舒宁(苏州)医疗科技有限公司, 舒拓 filed Critical 康奇舒宁(苏州)医疗科技有限公司
Publication of WO2021031989A1 publication Critical patent/WO2021031989A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A61B17/07207—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously the staples being applied sequentially
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00367—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like

Definitions

  • the present invention relates to the technical field of medical devices, in particular to a pusher bar booster mechanism for an anastomat and an anastomat.
  • the stapler is a special device that replaces manual suture in medicine. Its main working principle is to use titanium nails to anastomose tissues and to use a cutter to cut off. According to the scope of application, it can be divided into skin stapler, digestive tract (esophagus, gastrointestinal, etc.) round stapler, rectal stapler, round hemorrhoid stapler, circumcision stapler, vascular stapler, hernia stapler , Lung cutting and stapler, etc.
  • the swinging head of the existing endoscope cutting stapler is realized by the elastic deformation of the push rod assembly.
  • the elastic deformation position of the push rod assembly requires a booster mechanism.
  • the function of the boost mechanism is to provide the push rod assembly. Deformation provides a stable channel.
  • the assist mechanism in most staplers is to install two metal sheets on both sides of the pusher bar assembly to maintain the stability of the elastic deformation of the pusher bar assembly. Under this design, due to the limitation of the material characteristics of the metal sheet itself, the head-swing angle limitation and the required head-swinging force are too large during the head swing process.
  • the technical problem to be solved by the embodiments of the present invention is to provide a push-bar booster mechanism for an anastomat and an anastomat. After the connecting mechanism swings the head, it can act as a thrust on the tail. Therefore, the pusher lever assembly moves along the swing head side of the connecting mechanism, and the pusher lever assembly located at the connecting mechanism does not bulge and bend in the opposite direction of the rotation of the connecting mechanism.
  • a knife pushing bar booster mechanism for an anastomat includes a tube body, a connecting mechanism that can rotate relative to the tube body, a knife bar assembly, and a booster;
  • the pusher rod assembly is arranged in the tube body and can slide in the tube body;
  • the booster is sleeved on the pusher rod assembly, and one end of the booster is fixed on the connection In mechanism, the other end of the booster is fixed on the tube;
  • the booster includes at least a top wall, a bottom wall, and a multi-wall connecting the top wall and the bottom wall on one side of the pusher bar assembly.
  • the booster bends to the side of the first extension, and when the pusher bar assembly is pushed toward the connecting mechanism, The second extension portion of the booster abuts the side wall of the pusher bar assembly and causes the pusher bar assembly at the booster to slide toward the rotating side of the connecting mechanism;
  • the booster bends to one side of the second extension part, and when the push rod assembly is pushed toward the connecting mechanism, the booster The first extension part of the member abuts against the side wall of the pusher bar assembly and makes the pusher bar assembly at the booster slide toward the other side of the rotation of the connecting mechanism.
  • the booster is made of plastic material.
  • the extension direction of the first extension portion is perpendicular to the extension direction of the tube body.
  • the extension direction of the second extension portion is perpendicular to the extension direction of the tube body.
  • the extension direction of the first extension portion and the extension direction of the tube body are in a non-perpendicular state, and the projection of the first extension portion formed on the bottom wall or the top wall in the vertical direction is opposite to the adjacent one.
  • the projections of the first extension portion formed on the bottom wall or the top wall in the vertical direction meet or partially overlap.
  • the extension direction of the second extension portion is non-perpendicular to the extension direction of the tube body, and the projection of the second extension portion formed on the bottom wall or the top wall in the vertical direction is opposite to the adjacent one.
  • the projections of the second extension portion formed on the bottom wall or the top wall in the vertical direction meet or partially overlap.
  • the connecting mechanism has a first clamping portion, one end of the booster has a second clamping portion, and the second clamping portion can be engaged with the first clamping portion to make One end of the booster is fixedly connected to the connecting mechanism;
  • the pipe body has a third clamping portion, and the other end of the booster has a fourth clamping portion, and the fourth clamping portion can be connected to the connecting mechanism.
  • the third clamping portion is engaged with each other, so that the other end of the booster is fixed to the tube body.
  • the pusher bar assembly is at least partially penetrated in the connecting mechanism;
  • the connecting mechanism has support parts on both sides of one end facing the tube body, and when the connecting mechanism swings its head, the support The part can resist the booster to limit the pusher bar assembly.
  • An anastomat said anastomat comprising any one of the above-mentioned pusher bar assist mechanism for anastomat.
  • the connecting mechanism When the connecting mechanism rotates to swing the head, the connecting mechanism drives the pusher bar assembly at the connecting mechanism to have a certain degree of bending. Since the two ends of the booster are fixed to the connecting mechanism and the pipe body respectively, the booster is sleeved in On the pusher bar assembly, there is a gap between adjacent first extensions, and a gap is provided between adjacent second extensions. The gap between the extensions of the booster on the inner side of the pusher bar assembly can be easily compressed and reduced. Is small, the gap between the assisting member and the extended portion on the outer side of the pusher bar assembly can be easily stretched and enlarged.
  • the assisting member can move toward the side of the first extension and/or the second One side of the extension part is bent, and the extension part itself can achieve a bending degree matching the direction of the push knife assembly.
  • the push rod assembly at the connecting mechanism cannot bend and bulge in the opposite direction of the rotation of the connecting mechanism. This is due to the assisting force.
  • the part has a top wall and the bottom wall
  • the booster cannot be compressed or stretched in the extension direction of the top wall or the bottom wall
  • the two ends of the booster are respectively fixed to the connecting mechanism and the pipe body, Therefore, the length and position of the booster are fixed, and it cannot increase its length and then bulge and protrude in the opposite direction of the rotation of the connecting mechanism. Therefore, the bulge can only be achieved by increasing the length of the booster. It is impossible to move forward or backward arbitrarily under the drive of the pusher bar assembly.
  • the pusher bar assembly penetrates the booster. Both sides of the booster have a first extension part and a second extension part.
  • the booster is in The gap between the extensions on the outer side of the pusher bar assembly can be easily stretched and enlarged, and the resistance of the booster to the pusher bar assembly under the curved side wall will also become smaller, so that the stapler is in the firing process Therefore, the forward advancement process of the pusher bar assembly at the swinging position of the connecting mechanism is smoother, the required swinging force can also be reduced, and the steering swinging angle of the connecting mechanism can be further improved.
  • Figure 1 is a cutaway perspective view of a knife-pushing bar assisting mechanism used for an anastomat in an embodiment of the present invention
  • Fig. 2 is a top view of the pusher bar assist mechanism for the stapler in the embodiment of the present invention
  • Figure 3 is an enlarged schematic diagram of the booster, the connecting mechanism, and the tube fixing part in the embodiment of the present invention
  • FIG. 4 is a schematic diagram of the connecting mechanism in the embodiment of the present invention when swinging its head
  • FIG. 5 is a schematic diagram of the structure of the booster in the embodiment of the present invention in the first implementation mode
  • Figure 6 is a schematic diagram of the structure of the booster in the second embodiment of the present invention.
  • connection should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be a connection between two components, which can be directly connected or indirectly connected through an intermediate medium.
  • connection should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be a connection between two components, which can be directly connected or indirectly connected through an intermediate medium.
  • connection should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be a connection between two components, which can be directly connected or indirectly connected through an intermediate medium.
  • connection can be a mechanical connection or an electrical connection, or it can be a connection between two components, which can be directly connected or indirectly connected through an intermediate medium.
  • FIG. 1 is a cutaway perspective view of the knife-pushing bar booster mechanism for a stapler in an embodiment of the present invention.
  • Figure 2 is a top view of the push rod assist mechanism used for the stapler in the embodiment of the present invention
  • Figure 5 is a schematic structural diagram of the assist member in the first embodiment of the embodiment of the present invention
  • Figure 6 is an embodiment of the present invention The schematic diagram of the structure of the middle booster in the second embodiment, as shown in Fig. 1, Fig. 2, Fig. 5 and Fig.
  • the pusher bar booster mechanism for the stapler may include: a tube body 2 opposite to the tube body 2 Rotating connecting mechanism 1, pusher bar assembly 3, booster 4; pusher bar assembly 3 is arranged in the pipe body 2 and can slide in the pipe body 2; booster 4 is set in the pusher bar assembly 3, one end of the booster 4 is fixed on the connecting mechanism 1, and the other end of the booster 4 is fixed on the pipe body 2.
  • the booster 4 includes at least a top wall 43, a bottom wall 44, and a side wall of the push rod assembly 3.
  • the booster 4 When the connecting mechanism 1 is turned to one side and is in the first swing head state, the booster 4 is bent to the side of the first extension 41.
  • the booster 4 When the pusher bar assembly 3 is pushed toward the connecting mechanism 1, the booster 4 is second extended The portion 42 abuts against the side wall of the pusher bar assembly 3 and makes the pusher bar assembly 3 located at the booster 4 slide toward the rotating side of the connecting mechanism 1.
  • the connecting mechanism 1 rotates to the other side and is in the second swing head state, the booster 4 is bent to the side of the second extension 42.
  • the connecting mechanism 1 When the connecting mechanism 1 rotates to swing the head, the connecting mechanism 1 drives the pusher bar assembly 3 at the connecting mechanism 1 to have a certain degree of bending, because the two ends of the booster 4 are respectively opposite to the connecting mechanism 1 and the tube body 2.
  • the booster 4 Fixed, the booster 4 is sleeved on the pusher bar assembly 3, there is a gap between adjacent first extensions 41, and there is a gap between adjacent second extensions 42, the booster 4 is bent on the pusher bar assembly 3
  • the gap between the inner extensions can be easily compressed and reduced, and the gap between the booster 4 and the bent outer extension of the pusher bar assembly 3 can be easily stretched and increased.
  • the booster 4 can Bending to the side of the first extension portion 41 and/or the side of the second extension portion 42 itself can achieve a bending degree matching the direction of the push knife assembly.
  • the pusher bar assembly 3 moves linearly toward the pusher bar assembly 3 under the action of the tail thrust, the pusher bar assembly 3 located at the connecting mechanism 1 cannot bend and bulge in the opposite direction of the rotation of the connecting mechanism 1.
  • the booster 4 has a top wall 43 and a bottom wall 44.
  • the booster 4 cannot be compressed or stretched in the extension direction of the top wall 43 or the bottom wall 44.
  • the two ends of the booster 4 are connected to the connecting mechanism 1 and The tube body 2 is fixed. Therefore, the length and position of the booster 4 are fixed.
  • the length of the booster 4 can be reached, and it cannot be moved forward or backward arbitrarily under the drive of the pusher bar assembly 3.
  • the pusher bar assembly 3 passes through the booster 4, and both sides of the booster 4 have first An extension 41 and a second extension 42 can support the side wall of the pusher bar assembly 3 at the bend, so that the pusher bar assembly 3 can only be bent according to the degree of bending of the booster 4, so it is located
  • the pusher bar assembly 3 at the connecting mechanism 1 is restricted by the booster 4 and inevitably cannot bulge and protrude in the opposite direction of the rotation of the connecting mechanism 1.
  • the pusher bar assembly 3 can only move forward along the swinging side of the connecting mechanism 1 under the effect of the tail thrust, without the push knife located at the connecting mechanism 1
  • the rod assembly 3 bulges and protrudes toward the opposite direction of the rotation of the connecting mechanism 1.
  • the pusher bar assembly 3 is arranged in the tube body 2, and the right end of the pusher bar assembly 3 is provided with a base block 5, which is also arranged in the tube body 2, and the base block 5 is used to push the knife
  • the rod assembly 3 is confined to the middle of the tube body 2 to play a righting function and prevent the tail of the pusher rod assembly 3 from deviating to a certain side.
  • the pusher bar assembly 3 can slide in the extension direction of the tube 2 in the tube body 2.
  • FIG. 4 is a schematic diagram of the connecting mechanism in the embodiment of the present invention when it swings its head. As shown in FIGS. 2 and 4, the connecting mechanism 1 can rotate relative to the pipe body 2, and the connecting mechanism 1 After rotating to both sides, the connecting mechanism 1 is in the swinging state, and the pusher bar assembly 3 is at least partially inserted in the connecting mechanism 1.
  • the connecting mechanism 1 in the swinging state will drive the pusher bar assembly 3 to rotate, so that the connecting mechanism
  • the knife bar assembly 3 at one place is bent, so the knife bar assembly 3 also has a certain degree of curvature.
  • the connecting mechanism 1 is rotated to one side, it is in the first swing head state.
  • the connecting mechanism 1 rotates to the right, and the booster 4 is bent to the side of the first extension 41.
  • the connecting mechanism 1 is pushed, the second extension 42 of the booster 4 abuts the side wall of the pusher bar assembly 3 and causes the pusher bar assembly 3 at the booster 4 to slide toward the side of the connecting mechanism 1, otherwise the knife is pushed
  • the head of the rod assembly 3 may not move forward (downward in the figure).
  • the push rod assembly 3 at the connection mechanism 1 cannot move forward and will face to the left.
  • the movement, the shape causes the bending part of the pusher bar assembly 3 to further bulge to the lower left, so as to offset the forward movement of the tail of the pusher bar assembly 3.
  • the left end of the connecting mechanism 1 is used to install a nail anvil and a nail magazine rack (not shown in the figure), and a nail magazine is installed on the nail magazine rack.
  • the staple cartridge frame can be closed or opened relative to the staple anvil.
  • Fig. 3 is an enlarged schematic diagram of the booster, the connecting mechanism, and the tube fixing part in the embodiment of the present invention.
  • the booster 4 is sleeved on the pusher bar assembly 3.
  • One end of the booster 4 is fixed on the connecting mechanism 1, and the other end of the booster 4 is fixed on the pipe body 2.
  • the booster 4 is sleeved at a place where the knife bar assembly 3 is bent when the connecting mechanism 1 drives the knife bar assembly 3 to bend.
  • the connecting mechanism 1 may have a first clamping portion 11, and one end of the booster 4 close to the connecting mechanism 1 has a second clamping portion 45, and the second clamping portion 45 can be engaged with the first clamping portion 11.
  • the first clamping portion 11 can be a groove, bayonet, step, etc. that can clamp the booster 4, and the structure of the second clamping portion 45 can be matched with the structure of the first clamping portion 11.
  • one end of the booster 4 is fixedly connected to the connecting mechanism 1 to prevent the booster 4 from sliding along the extension direction of the pusher bar assembly 3.
  • the inner wall of the tube body 2 may have a third clamping portion 21, and the outside of the other end of the booster 4 may have a fourth clamping portion 46, and the fourth clamping portion 46 can be engaged with the third clamping portion 21.
  • the third clamping portion 21 may be a groove, bayonet, step, or the like that can clamp the booster 4, and the structure of the fourth clamping portion 46 can match the structure of the third clamping portion 2121, and the above In this way, one end of the booster 4 is fixedly connected to the pipe body 2 to prevent the booster 4 from sliding along the extension direction of the pusher bar assembly 3.
  • the booster 4 can be prevented from moving with the pusher bar assembly 3 as the pusher bar assembly 3 moves, so as to avoid the inability to make the pusher bar assembly 3 follow the connecting mechanism 1 under the effect of the tail thrust.
  • the purpose of moving the head side is a groove, bayonet, step, or the like that can clamp the booster 4, and the structure of the fourth clamping portion 46 can match the structure of the third clamping portion 2121, and the above In this way, one end of the booster 4 is fixedly connected to the pipe body 2 to prevent the booster 4 from sliding along the extension direction of the pusher bar assembly 3.
  • the booster 4 can be prevented from moving with the pusher bar assembly 3 as
  • the middle of the booster 4 may at least include a plurality of first extensions 41 on one side of the pusher bar assembly 3, and a plurality of second extensions on the other side of the pusher bar assembly 3. 42.
  • the upper end of the first extension portion 41 and the upper end of the second extension portion 42 are connected by a top wall 43, and the lower end of the first extension portion 41 and the lower end of the second extension portion 42 are connected by a bottom wall 44.
  • the first extension 41, the second extension 42, the top wall 43 and the bottom wall 44 are basically in contact with the wall of the pusher bar assembly 3, and the distance between the first extension 41 and the second extension 42 is substantially equal to the pusher
  • the thickness of the rod assembly 3 and the distance between the top wall 43 and the bottom wall 44 are substantially equal to the height of the pusher rod assembly 3.
  • the booster 4 may be made of plastic material. In this way, the top wall 43 and the bottom wall 44 have a certain degree of hardness, and the booster 4 cannot be compressed or stretched in the extending direction of the top wall 43 or the bottom wall 44.
  • the first extension 41 and the second extension 42 have a supporting effect on the side wall of the pusher bar assembly 3.
  • the first extension 41 and the second extension 42 themselves will not have elastic deformation and can prevent the pusher bar assembly. 3
  • the bulging protrusions that are bent in the opposite direction of the rotation of the connecting mechanism 1 further avoid the bulging of the push rod assembly 3 at the connecting mechanism 1 that may cause the push rod assembly 3 to be severely bent to a certain extent. Break off.
  • the gap between the extension parts of the booster 4 on the inner side of the bending of the pusher bar assembly 3 can be easily compressed and reduced, avoiding the extrusion of the extension parts and the need to apply a larger Head swinging force to overcome the squeezing force between the extensions.
  • the gap between the extension part of the booster 4 on the outer side of the bending of the pusher bar assembly 3 can be easily stretched and enlarged, which avoids the extension of the extension part itself, which causes the need to apply a larger head swinging force when bending. Overcome the stretching force of the extension.
  • the booster 4 runs along the connecting mechanism 1
  • the steering direction can also naturally produce smooth deformation, the required head swing force can also be reduced, and the steering swing angle can be further improved.
  • the pushing force required to advance the knife bar assembly 3 at the swinging position of the connecting mechanism 1 is smaller, and the pushing process is smoother.
  • the extension direction of the first extension portion 41 may be perpendicular to the extension direction of the tube body 2.
  • the extension direction of the second extension portion 42 may also be perpendicular to the extension direction of the tube body 2.
  • the extension direction of the first extension portion 41 is non-perpendicular to the extension direction of the pipe body 2, and the first extension portion 41 is formed on the bottom wall 44 or in the vertical direction.
  • the projection on the top wall 43 is in contact with or partially overlaps the projection of the adjacent first extension 41 formed on the bottom wall 44 or the top wall 43 in the vertical direction.
  • the extension direction of the second extension portion 42 is non-perpendicular to the extension direction of the tube body 2, and the projection of the second extension portion 42 formed on the bottom wall 44 or the top wall 43 in the vertical direction and the adjacent second extension portion 42
  • the projections formed on the bottom wall 44 or the top wall 43 in the vertical direction meet or partially overlap.
  • first extension portion 41 and the second extension portion 42 have a first extension portion 41 or any one of the side walls of the pusher bar assembly 3 in the extension direction of the pusher bar assembly 3 itself.
  • the second extension 42 has support for it.
  • different first extension 41 or second extension 42 will have different bulges and protrusions that bend in the opposite direction of the rotation of the connecting mechanism 1 to the pusher bar assembly 3 Both can provide sufficient support, and there will be no bulging protrusions that bend in the opposite direction of the rotation of the connecting mechanism 1 at the gap of the extension part, so that the head swing and the firing process can be smoother in the future.
  • the push rod assembly 3 has the lowest possibility of bulging and bulging in the opposite direction of the rotation of the connecting mechanism 1.
  • the connecting mechanism 1 has support portions 12 on both sides of one end facing the tube body 2, and the support portions 12 only need to be relatively smooth, such as an arc shape, without obvious edges and corners.
  • the support portion 12 can resist the booster 4 to make the pusher bar assembly 3 bend more smoothly and smoothly, so as to avoid local or a little excessive bending Bending caused by the big rear.
  • the relatively smooth supporting part 12 can fit with the curved booster 4 to increase the contact surface, so as to resist the booster 4, and then can provide a flat support force compensation to the extension of the booster 4 , So that the booster 4 in this state more effectively forms a surface supporting force to the side wall of the pusher bar assembly 3, so as to ensure that the pusher bar assembly 3 does not bend under the maximum degree of bending deformation Bending caused by oversize.
  • the present application also proposes a stapler, which may include any of the above-mentioned pusher bar assist mechanisms for the stapler.

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  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

本发明公开了一种用于吻合器的推刀杆助力机构和吻合器，其涉及医疗器械技术领域，推刀杆助力机构包括：管体，连接机构，推刀杆组件，助力件；推刀杆组件设置在管体中并能在管体中进行滑动；助力件套设在推刀杆组件上，助力件的一端固定在连接机构上，助力件的另一端固定在管体上；助力件包括顶壁、底壁、多个第一延伸部、多个第二延伸部，相邻第一延伸部之间具有间隙，相邻第二延伸部之间具有间隙；助力件在顶壁或底壁的延伸方向上无法压缩或拉伸。在连接机构摆头后，本申请能够在尾部推力的作用下使得推刀杆组件顺着连接机构摆头一侧移动，而不会出现位于连接机构处的推刀杆组件向着连接机构转动的相反方向弯曲的鼓起凸出。

Description

用于吻合器的推刀杆助力机构和吻合器
交叉参考相关引用
本申请要求2019年8月21日提交的申请号为201910772772.X的中国专利申请的优先权，上述申请参考并入本文。
技术领域
本发明涉及医疗器械技术领域，特别涉及一种用于吻合器的推刀杆助力机构和吻合器。
背景技术
吻合器是一种医学上替代手工缝合的特殊设备，其主要工作原理是利用钛钉等对组织进行吻合以及利用切刀进行离断。根据适用范围不同，主要可分为皮肤吻合器、消化道(食道、胃肠等)圆形吻合器、直肠吻合器、圆形痔吻合器、包皮环切吻合器、血管吻合器、疝气吻合器、肺切割缝合器等。
现有的腔镜切割吻合器的摆头都是通过推刀杆组件的弹性形变来实现的，在推刀杆组件的弹性形变位置需要一个助力机构，该助力机构的作用是给推刀杆组件变形提供一个稳定的通道。目前大多数吻合器中的助力机构是在推刀杆组件的两侧安装两个金属薄片来维持推刀杆组件变形位的弹性形变的稳定。在此种设计下，由于金属薄片本身材料特性的限制，在摆头过程中会带来摆头角度的限制和需要的摆头力过大的问题。而且在连接机构转动后处于摆头状态后，由于连接机构摆头处的推刀杆组件处于弯曲状态，在吻合器在击发过程中，即需要从尾部推动推刀杆组件向连接机构摆头方向一侧移动，推刀杆组件由于具有弹性形变，其不会向着转动后的连接机构方向移动，在尾部推力的作用下推刀杆组件会向着推刀杆组件直线方向移动，进而导致位于连接机构处的推刀杆组件向着连接机构转动的相反方向弯曲的鼓起凸出更为严重，推刀杆组件的头部不会向前移动。这样会导致吻合器无法正常完成击发过程或击发过程中可能需要更大的击发力强行在鼓起凸出后继续推动推刀杆组件的头部向前，后者操作下弯曲的鼓起凸出严重到一定程度时，可能会造成推刀杆组件的折断。无论哪种情况都会造成推刀杆组件的头部无法带动切刀向前移动进行切割操作。
发明内容
为了克服现有技术的上述缺陷，本发明实施例所要解决的技术问题是提供了一种用于吻合器的推刀杆助力机构和吻合器，在连接机构摆头后，能够在尾部推力的作用下使得推刀杆组件顺着连接机构摆头一侧移动，而不会出现位于连接机构处的推刀杆组件向着连接机构转动的相反方向弯曲的鼓起凸出。
本发明实施例的具体技术方案是：
一种用于吻合器的推刀杆助力机构，所述用于吻合器的推刀杆助力机构包括：管体，相对所述管体能够进行转动的连接机构，推刀杆组件，助力件；所述推刀杆组件设置在所述管体中并能在所述管体中进行滑动；所述助力件套设在所述推刀杆组件上，所述助力件的一端固定在所述连接机构上，所述助力件的另一端固定在所述管体上；所述助力件至少包括顶壁、底壁、位于所述推刀杆组件一侧的连接所述顶壁和底壁的多个第一延伸部、位于所述推刀杆组件另一侧的连接所述顶壁和底壁的多个第二延伸部，相邻所述第一延伸部之间具有间隙，相邻所述第二延伸部之间具有间隙，以使所述助力件能向所述第一延伸部一侧和/或所述第二延伸部一侧弯曲；所述助力件在所述顶壁或所述底壁的延伸方向上无法压缩或拉伸。
优选地，在所述连接机构向一侧转动后处于第一摆头状态下，所述助力件向所述第一延伸部一侧弯曲，当推刀杆组件向所述连接机构推动时，所述助力件的第二延伸部抵住所述推刀杆组件的侧壁并使得位于所述助力件处的所述推刀杆组件朝向所述连接机构转动一侧滑动；
在所述连接机构向另一侧转动后处于第二摆头状态下，所述助力件向所述第二延伸部一侧弯曲，当推刀杆组件向所述连接机构推动时，所述助力件的第一延伸部抵住所述推刀杆组件的侧壁并使得位于所述助力件处的所述推刀杆组件朝向所述连接机构转动的另一侧滑动。
优选地，所述助力件由塑料材料制成。
优选地，所述第一延伸部的延伸方向与所述管体的延伸方向呈垂直状态。
优选地，所述第二延伸部的延伸方向与所述管体的延伸方向呈垂直状态。
优选地，所述第一延伸部的延伸方向与所述管体的延伸方向呈非垂直状态，所述第一延伸部在垂直方向上形成在底壁或顶壁上的投影与相邻的所述第一延伸部在垂直方向上形成在底壁或顶壁上的投影相接或部分重叠。
优选地，所述第二延伸部的延伸方向与所述管体的延伸方向呈非垂直状态，所述第二延伸部在垂直方向上形成在底壁或顶壁上的投影与相邻的所述第二延伸部在垂直方向上形成在底壁或顶壁上的投影相接或部分重叠。
优选地，所述连接机构上具有第一卡接部，所述助力件的一端具有第二卡接部，所述第二卡接部能与所述第一卡接部相卡合，以使所述助力件的一端固定连接在所述连接机构；所述管体上具有第三卡接部，所述助力件的另一端具有第四卡接部，所述第四卡接部能与所述第三卡接部相卡合，以使所述助力件的另一端固定在所述管体。
优选地，所述推刀杆组件至少部分穿设在所述连接机构中；所述连接机构朝向所述管体的一端的两侧具有支撑部，当所述连接机构摆头时，所述支撑部能够抵住所述助力件以对所述推刀杆组件进行限位。
一种吻合器，所述吻合器包括如上述任一所述的用于吻合器的推刀杆助力机构。
本发明的技术方案具有以下显著有益效果：
当连接机构转动以进行摆头时，连接机构带动连接机构处的推刀杆组件也会具有一定的弯曲程度，由于助力件的两端分别和连接机构和管体相固定，助力件套设在推刀杆组件上，相邻第一延伸部之间具有间隙，相邻第二延伸部之间具有间隙，助力件在推刀杆组件弯曲的内侧的延伸部之间的间隙能够轻易的压缩减小，助力件在推刀杆组件弯曲的外侧的延伸部之间的间隙能够轻易的拉伸增大，通过上述过程，助力件能向所述第一延伸部一侧和/或所述第二延伸部一侧弯曲，其自身能够达到与推刀组件向匹配的弯曲程度。其次，在尾部推力的作用下推刀杆组件向着推刀杆组件直线方向移动时，位于连接机构处的推刀杆组件无法向着连接机构转动的相反方向弯曲的鼓起凸出，这是由于助力件具有顶壁和所述底壁，所述助力件在所述顶壁或所述底壁的延伸方向上无法压缩或拉伸，助力件的两端又分别和连接机构和管体相固定，因此，助力件的长度以及位置是固定的，其无法增大自身长度进而向着连接机构转动的相反方向弯曲的鼓起凸出，因此鼓起凸出必须要增大助力件的长度才能达到，也无法在推刀杆组件的带动下进行任意的向前或向后的移动，推刀杆组件穿设在助力件，助力件的两侧具有第一延伸部和第二延伸部，这两者能够对弯曲处的推刀杆组件的侧壁进行支撑，使得推刀杆组件只能按照助力件的弯曲程度进行弯曲，所以位于连接机构处的推刀杆组件受到助力件的限制必然也无法向着连接机构转动的相反方向弯曲的鼓起凸出。因此，在连接机构摆头后，在尾部推力的作用下使得推刀杆组件只能顺着连接机构摆头一侧向前进行移动，而不会出现位于连接机构处的推刀杆组件向着连接机构转动的相反方向弯曲的鼓起凸出。一旦推刀杆组 件不会出现向着连接机构转动的相反方向弯曲的鼓起凸出，且助力件在推刀杆组件弯曲的内侧的延伸部之间的间隙能够轻易的压缩减小，助力件在推刀杆组件弯曲的外侧的延伸部之间的间隙能够轻易的拉伸增大，助力件在弯曲下侧壁给推刀杆组件的阻力也会变的较小，如此吻合器在击发过程中，推刀杆组件在连接机构摆头位置处的向前推进过程更加顺畅，需要的摆头力也可以减小，且连接机构的转向摆头角度也能够进一步被提升。
附图说明
在此描述的附图仅用于解释目的，而不意图以任何方式来限制本发明公开的范围。另外，图中的各部件的形状和比例尺寸等仅为示意性的，用于帮助对本发明的理解，并不是具体限定本发明各部件的形状和比例尺寸。本领域的技术人员在本发明的教导下，可以根据具体情况选择各种可能的形状和比例尺寸来实施本发明。
图1为本发明实施例中用于吻合器的推刀杆助力机构剖开后的立体示意图；
图2为本发明实施例中用于吻合器的推刀杆助力机构的俯视图；
图3为本发明实施例中助力件与连接机构、管体固定处的放大示意图；
图4为本发明实施例中连接机构摆头时的示意图；
图5为本发明实施例中助力件在第一种实施方式下的结构示意图；
图6为本发明实施例中助力件在第二种实施方式下的结构示意图。
以上附图的附图标记：
1、连接机构；11、第一卡接部；12、支撑部；2、管体；21、第三卡接部；3、推刀杆组件；4、助力件；41、第一延伸部；42、第二延伸部；43、顶壁；44、底壁；45、第二卡接部；46、第四卡接部；5、基础块。
具体实施方式
结合附图和本发明具体实施方式的描述，能够更加清楚地了解本发明的细节。但是，在此描述的本发明的具体实施方式，仅用于解释本发明的目的，而不能以任何方式理解成是对本发明的限制。在本发明的教导下，技术人员可以构想基于本发明的任意可能的变形，这些都应被视为属于本发明的范围。需要说明的是，当元件被称为“设置于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。术语“安装”、“相连”、“连接”应做广义理解，例如，可以是机械连接或电连接， 也可以是两个元件内部的连通，可以是直接相连，也可以通过中间媒介间接相连，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的具体含义。本文所使用的术语“垂直的”、“水平的”、“上”、“下”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施方式的目的，不是旨在于限制本申请。本文所使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。
在连接机构摆头后，为了能够在尾部推力的作用下使得推刀杆组件顺着连接机构摆头一侧移动，而不会出现位于连接机构处的推刀杆组件向着连接机构转动的相反方向弯曲的鼓起凸出，在本申请中提出了一种用于吻合器的推刀杆助力机构，图1为本发明实施例中用于吻合器的推刀杆助力机构剖开后的立体示意图，图2为本发明实施例中用于吻合器的推刀杆助力机构的俯视图，图5为本发明实施例中助力件在第一种实施方式下的结构示意图，图6为本发明实施例中助力件在第二种实施方式下的结构示意图，如图1、图2、图5和图6所示，该用于吻合器的推刀杆助力机构可以包括：管体2，相对管体2能够进行转动的连接机构1，推刀杆组件3，助力件4；推刀杆组件3设置在管体2中并能在管体2中进行滑动；助力件4套设在推刀杆组件3上，助力件4的一端固定在连接机构1上，助力件4的另一端固定在管体2上；助力件4至少包括顶壁43、底壁44、位于推刀杆组件3一侧的连接顶壁43和底壁44的多个第一延伸部41、位于推刀杆组件3另一侧的连接顶壁43和底壁44的多个第二延伸部42，相邻第一延伸部41之间具有间隙，相邻第二延伸部42之间具有间隙，以使助力件4能向第一延伸部41一侧和/或第二延伸部42一侧弯曲；助力件4在顶壁43或底壁44的延伸方向上无法压缩或拉伸。
在连接机构1向一侧转动后处于第一摆头状态下，助力件4向第一延伸部41一侧弯曲，当推刀杆组件3向连接机构1推动时，助力件4的第二延伸部42抵住推刀杆组件3的侧壁并使得位于助力件4处的推刀杆组件3朝向连接机构1转动一侧滑动。在连接机构1向另一侧转动后处于第二摆头状态下，助力件4向第二延伸部42一侧弯曲，当推刀杆组件3向连接机构1推动时，助力件4的第一延伸部41抵住推刀杆组件3的侧壁并使得位于助力件4处的推刀杆组件3朝向连接机构1转动的另一侧滑动。
当连接机构1转动以进行摆头时，连接机构1带动连接机构1处的推刀杆组件3也会具有一定的弯曲程度，由于助力件4的两端分别和连接机构1和管体2相固定，助力 件4套设在推刀杆组件3上，相邻第一延伸部41之间具有间隙，相邻第二延伸部42之间具有间隙，助力件4在推刀杆组件3弯曲的内侧的延伸部之间的间隙能够轻易的压缩减小，助力件4在推刀杆组件3弯曲的外侧的延伸部之间的间隙能够轻易的拉伸增大，通过上述过程，助力件4能向第一延伸部41一侧和/或第二延伸部42一侧弯曲，其自身能够达到与推刀组件向匹配的弯曲程度。其次，在尾部推力的作用下推刀杆组件3向着推刀杆组件3直线方向移动时，位于连接机构1处的推刀杆组件3无法向着连接机构1转动的相反方向弯曲的鼓起凸出，这是由于助力件4具有顶壁43和底壁44，助力件4在顶壁43或底壁44的延伸方向上无法压缩或拉伸，助力件4的两端又分别和连接机构1和管体2相固定，因此，助力件4的长度以及位置是固定的，其无法增大自身长度进而向着连接机构1转动的相反方向弯曲的鼓起凸出，因此鼓起凸出必须要增大助力件4的长度才能达到，也无法在推刀杆组件3的带动下进行任意的向前或向后的移动，推刀杆组件3穿设在助力件4，助力件4的两侧具有第一延伸部41和第二延伸部42，这两者能够对弯曲处的推刀杆组件3的侧壁进行支撑，使得推刀杆组件3只能按照助力件4的弯曲程度进行弯曲，所以位于连接机构1处的推刀杆组件3受到助力件4的限制必然也无法向着连接机构1转动的相反方向弯曲的鼓起凸出。因此，在连接机构1摆头后，在尾部推力的作用下使得推刀杆组件3只能顺着连接机构1摆头一侧向前进行移动，而不会出现位于连接机构1处的推刀杆组件3向着连接机构1转动的相反方向弯曲的鼓起凸出。一旦推刀杆组件3不会出现向着连接机构1转动的相反方向弯曲的鼓起凸出，且助力件4在推刀杆组件3弯曲的内侧的延伸部之间的间隙能够轻易的压缩减小，助力件4在推刀杆组件3弯曲的外侧的延伸部之间的间隙能够轻易的拉伸增大，助力件4在弯曲下侧壁给推刀杆组件3的阻力也会变的较小，如此吻合器在击发过程中，推刀杆组件3在连接机构1摆头位置处的向前推进过程更加顺畅，需要的摆头力也可以减小，且连接机构1的转向摆头角度也能够进一步被提升。
为了能够更好的了解本申请中的用于吻合器的推刀杆助力机构，下面将对其做进一步解释和说明。如图1所示，推刀杆组件3设置在管体2中，推刀杆组件3的右端设置有基础块5，基础块5也设置在管体2中，基础块5用于将推刀杆组件3限制在管体2的中部，起到扶正作用，防止推刀杆组件3的尾部出现偏向某一侧的偏移。推刀杆组件3能在管体2中延伸管体2延伸方向进行滑动，一般情况下，推刀杆组件3的尾部即右端会受到推力，从而使得推刀杆组件3向其头部即左端移动，进而使得推刀杆组件3头部的一端向连接机构1那侧进行移动。管体2的左端设置有连接机构1，图4为本发明 实施例中连接机构摆头时的示意图，如图2和图4所示，连接机构1相对管体2能够进行转动，连接机构1向两侧转动以后，连接机构1处于摆头状态，推刀杆组件3至少部分穿设在连接机构1中，因此连接机构1处于摆头状态下将带动推刀杆组件3转动，使得连接机构1处的推刀杆组件3弯曲，因此，推刀杆组件3也具有一定的弯曲程度。在连接机构1向一侧转动后处于第一摆头状态下，如图4中述连接机构1向右侧转动，助力件4向第一延伸部41一侧弯曲，当推刀杆组件3向连接机构1推动时，助力件4的第二延伸部42抵住推刀杆组件3的侧壁并使得位于助力件4处的推刀杆组件3朝向连接机构1转动一侧滑动，否则推刀杆组件3的头部可能不会向前移动(图中为向下)，在推刀杆组件3尾部的推力下，连接机构1处的推刀杆组件3无法向前移动就会朝向左侧移动，形进而导致推刀杆组件3的弯曲处进一步向左下方鼓起凸出，以抵消推刀杆组件3尾部向前移动的距离。
同理，在连接机构1向另一侧转动后处于第二摆头状态下，如图4中连接机构1向左侧转动，助力件4向第二延伸部42一侧弯曲，当推刀杆组件3向连接机构1推动时，助力件4的第一延伸部41抵住推刀杆组件3的侧壁并使得位于助力件4处的推刀杆组件3朝向连接机构1转动的另一侧滑动。
连接机构1的左端用于安装钉砧和钉仓架(图中未示出)，钉仓架上安装有钉仓。钉仓架相对于钉砧可以闭合或打开。通过连接机构1的摆动转动，进而实现钉砧和钉仓架相对于管体2的摆动转动。
图3为本发明实施例中助力件与连接机构、管体固定处的放大示意图，如图1、图2、图3和图4所示，助力件4套设在推刀杆组件3上，助力件4的一端固定在连接机构1上，助力件4的另一端固定在管体2。具体而言，助力件4套设在连接机构1将带动推刀杆组件3弯曲时推刀杆组件3发生弯曲的地方。连接机构1上可以具有第一卡接部11，助力件4靠近连接机构1的一端具有第二卡接部45，第二卡接部45能与第一卡接部11相卡合。第一卡接部11可以是凹槽、卡口、台阶等能够将助力件4卡住的结构，第二卡接部45的结构与第一卡接部11的结构相匹配即可，通过上述方式使得助力件4的一端固定连接在连接机构1，以防止助力件4沿着推刀杆组件3延伸方向出现滑动。管体2的内侧壁上可以具有第三卡接部21，助力件4的另一端外侧可以具有第四卡接部46，第四卡接部46能与第三卡接部21相卡合。第三卡接部21可以是凹槽、卡口、台阶等能够将助力件4卡住的结构，第四卡接部46的结构与第三卡接部2121的结构相匹配即可，通过上述方式使得助力件4的一端固定连接在管体2上，以防止助力件4沿着推刀杆组 件3延伸方向出现滑动。通过对助力件4的固定可以防止助力件4随着推刀杆组件3的移动而跟着推刀杆组件3移动，避免无法达到在尾部推力的作用下使得推刀杆组件3顺着连接机构1摆头一侧移动的目的。
如图5至图6所示，助力件4的中部至少可以包括位于推刀杆组件3一侧的多个第一延伸部41、位于推刀杆组件3另一侧的多个第二延伸部42、顶壁43和底壁44。第一延伸部41的上端和第二延伸部42的上端通过顶壁43连接，第一延伸部41的下端和第二延伸部42的下端通过底壁44连接。第一延伸部41、第二延伸部42、顶壁43和底壁44基本与推刀杆组件3的壁面相贴，第一延伸部41与第二延伸部42之间的距离大体等于推刀杆组件3的厚度，顶壁43和底壁44之间的距离大体等于推刀杆组件3的高度。助力件4可以由塑料材料制成，通过该种方式使得顶壁43和底壁44有一定的硬度，助力件4在顶壁43或底壁44的延伸方向上无法压缩或拉伸。其次，第一延伸部41和第二延伸部42对推刀杆组件3的侧壁具有支撑作用，第一延伸部41和第二延伸部42本身不会具有弹性形变，能够阻止推刀杆组件3向着连接机构1转动的相反方向弯曲的鼓起凸出，更加避免了连接机构1处的推刀杆组件3弯曲的鼓起凸出严重到一定程度时可能会造成的推刀杆组件3的折断。
如图5至图6所示，相邻第一延伸部41之间具有间隙，相邻第二延伸部42之间具有间隙。通过上述结构，助力件4在推刀杆组件3弯曲的内侧的延伸部之间的间隙能够轻易的压缩减小，避免了延伸部相互之间的挤压而导致弯曲时需要施加一个较大的摆头力以克服延伸部之间挤压的力。而助力件4在推刀杆组件3弯曲的外侧的延伸部之间的间隙能够轻易的拉伸增大，避免了延伸部自身的拉伸而导致弯曲时需要施加一个较大的摆头力以克服延伸部拉伸的力。同时，助力件4的内侧和外侧均不会对推刀杆组件3产生过大的压力，因此不会对推刀杆组件3造成过大的摩擦力，如此，助力件4沿连接机构1的转向方向也能够自然的产生顺畅的形变，需要的摆头力也可以减小，且转向摆头角度能够进一步被提升。并且，吻合器在击发过程中，推刀杆组件3在连接机构1摆头位置处的向前推进所需的推进力更小，推进过程更加顺畅。
在一种可行的实施方式中，如图5所示，第一延伸部41的延伸方向可以与管体2的延伸方向呈垂直状态。第二延伸部42的延伸方向也可以与管体2的延伸方向呈垂直状态。在该种方式中，助力件4在推刀杆组件3弯曲的内侧的延伸部之间的间隙能够被压缩的程度最大，需要的摆头力最小，转向摆头角度的提升程度最大。
在一种可行的实施方式中，如图6所示，第一延伸部41的延伸方向与管体2的延伸 方向呈非垂直状态，第一延伸部41在垂直方向上形成在底壁44或顶壁43上的投影与相邻的第一延伸部41在垂直方向上形成在底壁44或顶壁43上的投影相接或部分重叠。第二延伸部42的延伸方向与管体2的延伸方向呈非垂直状态，第二延伸部42在垂直方向上形成在底壁44或顶壁43上的投影与相邻的第二延伸部42在垂直方向上形成在底壁44或顶壁43上的投影相接或部分重叠。在该种方式中，第一延伸部41和第二延伸部42对推刀杆组件3的侧壁在推刀杆组件3自身的延伸方向上的任一一处均有第一延伸部41或第二延伸部42对其具有支撑，如此，不同的第一延伸部41或第二延伸部42对推刀杆组件3会发生向着连接机构1转动的相反方向弯曲的鼓起凸出的不同处均能提供充足的支撑，在延伸部的间隙处也不会发生向着连接机构1转动的相反方向弯曲的鼓起凸出，这样以后可以使得摆头和击发过程更为顺畅。在上述方式下，推刀杆组件3会发生向着连接机构1转动的相反方向弯曲的鼓起凸出的可能性最低。
如图4所示，连接机构1朝向管体2的一端的两侧具有支撑部12，该支撑部12只需满足较为圆滑即可，如呈圆弧状，不具有明显的棱角即可。当连接机构1摆头时，例如连接机构1摆头至最大程度，支撑部12能够抵住助力件4以使得推刀杆组件3的弯曲更为柔顺圆滑，避免出现局部或一点处弯曲程度过大后导致的弯折。在上述过程中，较为圆滑的支撑部12能与弯曲的助力件4相贴合，增大接触面，从而抵住助力件4，进而可以给助力件4的延伸部一个面性的支撑力补偿，使得助力件4在此状态下更为有效的形成一个对推刀杆组件3的侧壁的面性的支撑力，如此可以保证推刀杆组件3在弯曲形变程度最大情况下不发生弯曲程度过大而导致的弯折。
本申请中还提出了一种吻合器，该吻合器可以包括如上述任一的用于吻合器的推刀杆助力机构。
披露的所有文章和参考资料，包括专利申请和出版物，出于各种目的通过援引结合于此。描述组合的术语“基本由…构成”应该包括所确定的元件、成分、部件或步骤以及实质上没有影响该组合的基本新颖特征的其他元件、成分、部件或步骤。使用术语“包含”或“包括”来描述这里的元件、成分、部件或步骤的组合也想到了基本由这些元件、成分、部件或步骤构成的实施方式。这里通过使用术语“可以”，旨在说明“可以”包括的所描述的任何属性都是可选的。多个元件、成分、部件或步骤能够由单个集成元件、成分、部件或步骤来提供。另选地，单个集成元件、成分、部件或步骤可以被分成分离的多个元件、成分、部件或步骤。用来描述元件、成分、部件或步骤的公开“一”或“一个”并不说为了排除其他的元件、成分、部件或步骤。
本说明书中的各个实施例均采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似的部分互相参见即可。上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围。凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围之内。

Claims (10)

  1. 一种用于吻合器的推刀杆助力机构，其特征在于，所述用于吻合器的推刀杆助力机构包括：管体，相对所述管体能够进行转动的连接机构，推刀杆组件，助力件；所述推刀杆组件设置在所述管体中并能在所述管体中进行滑动；所述助力件套设在所述推刀杆组件上，所述助力件的一端固定在所述连接机构上，所述助力件的另一端固定在所述管体上；所述助力件至少包括顶壁、底壁、位于所述推刀杆组件一侧的连接所述顶壁和底壁的多个第一延伸部、位于所述推刀杆组件另一侧的连接所述顶壁和底壁的多个第二延伸部，相邻所述第一延伸部之间具有间隙，相邻所述第二延伸部之间具有间隙，以使所述助力件能向所述第一延伸部一侧和/或所述第二延伸部一侧弯曲；所述助力件在所述顶壁或所述底壁的延伸方向上无法压缩或拉伸。
  2. 根据权利要求1所述的用于吻合器的推刀杆助力机构，其特征在于，在所述连接机构向一侧转动后处于第一摆头状态下，所述助力件向所述第一延伸部一侧弯曲，当推刀杆组件向所述连接机构推动时，所述助力件的第二延伸部抵住所述推刀杆组件的侧壁并使得位于所述助力件处的所述推刀杆组件朝向所述连接机构转动一侧滑动；
    在所述连接机构向另一侧转动后处于第二摆头状态下，所述助力件向所述第二延伸部一侧弯曲，当推刀杆组件向所述连接机构推动时，所述助力件的第一延伸部抵住所述推刀杆组件的侧壁并使得位于所述助力件处的所述推刀杆组件朝向所述连接机构转动的另一侧滑动。
  3. 根据权利要求1所述的用于吻合器的推刀杆助力机构，其特征在于，所述助力件由塑料材料制成。
  4. 根据权利要求1所述的用于吻合器的推刀杆助力机构，其特征在于，所述第一延伸部的延伸方向与所述管体的延伸方向呈垂直状态。
  5. 根据权利要求1所述的用于吻合器的推刀杆助力机构，其特征在于，所述第二延伸部的延伸方向与所述管体的延伸方向呈垂直状态。
  6. 根据权利要求1所述的用于吻合器的推刀杆助力机构，其特征在于，所述第一 延伸部的延伸方向与所述管体的延伸方向呈非垂直状态，所述第一延伸部在垂直方向上形成在底壁或顶壁上的投影与相邻的所述第一延伸部在垂直方向上形成在底壁或顶壁上的投影相接或部分重叠。
  7. 根据权利要求1所述的用于吻合器的推刀杆助力机构，其特征在于，所述第二延伸部的延伸方向与所述管体的延伸方向呈非垂直状态，所述第二延伸部在垂直方向上形成在底壁或顶壁上的投影与相邻的所述第二延伸部在垂直方向上形成在底壁或顶壁上的投影相接或部分重叠。
  8. 根据权利要求1所述的用于吻合器的推刀杆助力机构，其特征在于，所述连接机构上具有第一卡接部，所述助力件的一端具有第二卡接部，所述第二卡接部能与所述第一卡接部相卡合，以使所述助力件的一端固定连接在所述连接机构；所述管体上具有第三卡接部，所述助力件的另一端具有第四卡接部，所述第四卡接部能与所述第三卡接部相卡合，以使所述助力件的另一端固定在所述管体。
  9. 根据权利要求1所述的用于吻合器的推刀杆助力机构，其特征在于，所述推刀杆组件至少部分穿设在所述连接机构中；所述连接机构朝向所述管体的一端的两侧具有支撑部，当所述连接机构摆头时，所述支撑部能够抵住所述助力件以对所述推刀杆组件进行限位。
  10. 一种吻合器，其特征在于，所述吻合器包括如权利要求1至9中任一所述的用于吻合器的推刀杆助力机构。
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104207811A (zh) * 2014-09-30 2014-12-17 山东威瑞外科医用制品有限公司 一次性腔内切割吻合器
CN205234555U (zh) * 2015-12-21 2016-05-18 苏州天臣国际医疗科技有限公司 腔镜外科手术用缝切装置
US20170189026A1 (en) * 2013-08-15 2017-07-06 Ethicon Llc Endoluminal stapler with rotating wheel cam for multi-staple firing
CN208838054U (zh) * 2018-06-06 2019-05-10 重庆西山科技股份有限公司 吻合器推刀片弯曲支撑机构
CN110403659A (zh) * 2019-08-21 2019-11-05 康奇舒宁(苏州)医疗科技有限公司 用于吻合器的推刀杆助力机构和吻合器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7143925B2 (en) * 2004-07-28 2006-12-05 Ethicon Endo-Surgery, Inc. Surgical instrument incorporating EAP blocking lockout mechanism
JP4731606B2 (ja) * 2006-06-08 2011-07-27 サージカル・ソルーシヨンズ・エルエルシー 関節連結シャフトを有する医療デバイス
US9987000B2 (en) * 2014-12-18 2018-06-05 Ethicon Llc Surgical instrument assembly comprising a flexible articulation system
CN210843258U (zh) * 2019-08-21 2020-06-26 康奇舒宁(苏州)医疗科技有限公司 用于吻合器的推刀杆助力机构和吻合器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170189026A1 (en) * 2013-08-15 2017-07-06 Ethicon Llc Endoluminal stapler with rotating wheel cam for multi-staple firing
CN104207811A (zh) * 2014-09-30 2014-12-17 山东威瑞外科医用制品有限公司 一次性腔内切割吻合器
CN205234555U (zh) * 2015-12-21 2016-05-18 苏州天臣国际医疗科技有限公司 腔镜外科手术用缝切装置
CN208838054U (zh) * 2018-06-06 2019-05-10 重庆西山科技股份有限公司 吻合器推刀片弯曲支撑机构
CN110403659A (zh) * 2019-08-21 2019-11-05 康奇舒宁(苏州)医疗科技有限公司 用于吻合器的推刀杆助力机构和吻合器

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