CN113143364A - Anastomat assembly and anastomat - Google Patents

Anastomat assembly and anastomat Download PDF

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Publication number
CN113143364A
CN113143364A CN202110526785.6A CN202110526785A CN113143364A CN 113143364 A CN113143364 A CN 113143364A CN 202110526785 A CN202110526785 A CN 202110526785A CN 113143364 A CN113143364 A CN 113143364A
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CN
China
Prior art keywords
nail
tightening member
distal end
base
abutting seat
Prior art date
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Pending
Application number
CN202110526785.6A
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Chinese (zh)
Inventor
刘青
范宏利
黄战川
杜泽奎
杨雪兰
刘立波
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Beijing Peerte Medical Technology Co ltd
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Beijing Peerte Medical Technology Co ltd
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Priority to CN202110526785.6A priority Critical patent/CN113143364A/en
Publication of CN113143364A publication Critical patent/CN113143364A/en
Pending legal-status Critical Current

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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
    • 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
    • A61B2017/07214—Stapler heads
    • A61B2017/07271—Stapler heads characterised by its cartridge
    • 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
    • A61B2017/07214—Stapler heads
    • A61B2017/07278—Stapler heads characterised by its sled or its staple holder
    • 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
    • A61B2017/07214—Stapler heads
    • A61B2017/07285—Stapler heads characterised by its cutter

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

The invention discloses a stapler assembly which comprises a nail abutting seat and a nail box assembly, wherein the nail box assembly comprises a nail box base, the near end of the nail abutting seat is movably connected with the near end of the nail box base, and the far end of the nail abutting seat and the far end of the nail box base can move relatively to close and open. By adopting the design, the invention separates the clamping action from the cutting anastomosis action, so that the clamping force is more stable, the stress of the cutting part is smaller, the operator saves more labor, the hand feeling is better, the surgical risk is reduced, and the operation efficiency is improved.

Description

Anastomat assembly and anastomat
Technical Field
The invention relates to the field of medical instruments, in particular to an anastomat assembly and an anastomat.
Background
Currently, minimally invasive surgery is an important part of surgical operation, in which the lesion is removed as an important part, and it is common to use surgical instruments having a long shaft or rod structure, which is inserted into the lesion under the cooperation of an endoscope, and then the lesion is removed. An endoscope anastomat is used as one kind of surgical instrument, and the anastomat works on the principle that the anastomat is clamped at a focus position to perform excision, and the focus is sutured while the excision is performed.
The endoscopic anastomat plays an increasingly critical role in the operation, and components with corresponding models need to be selected due to different thicknesses and lengths of the cutting anastomosis tissues of the operation part, so that the time for waiting for instruments can be shortened due to the rapid, safe and reliable assembly and connection between the gun body and the components, the operation time is effectively shortened, and the operation success rate is improved.
The endoscope anastomat component on the market at present clamps tissues and cuts tissues and finishes through the cutting knife, the firing bar pushes the cutting knife to move forward, the cutting knife slides to the groove of the nail seat and the nail box base, the closed jaw clamps the tissues tightly, the forward movement continues, the cutting edge on the cutting knife cuts the tissues, under the structure of the endoscope anastomat, the force required by the firing bar and the transmission part is large, the strength requirement on the transmission part is high, in the operation, the parts at the position are easy to damage and lose efficacy, and the operation risk is increased. When the cutting knife cuts the tissue, the tissue can be pushed out of the jaw, the suture fails, the titanium nails are scattered, and the component needs to be replaced and fired again for operation.
Disclosure of Invention
The invention aims to solve the technical problems that in the prior art, tissue clamping and cutting of a anastomat assembly are completed by a cutting knife, so that the tissue can be pushed out of a jaw, and a transmission part is easy to damage due to overlarge stress.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the utility model provides an anastomat assembly, anastomat assembly is including supporting nail seat, nail casket subassembly includes nail casket base, support nail seat near-end with nail casket base near-end swing joint, support nail seat distal end with but nail casket base distal end relative motion carries out closure and opens, a serial communication port, anastomat assembly still includes and links the pipe, support the nail seat the near-end with the near-end swing joint of nail casket base, the near-end setting of nail casket base is in the distal end of linking the pipe, it can control through the action of sliding to link the pipe support the nail seat the distal end with nail casket base distal end is closed and is opened.
This application accomplishes the centre gripping action of keeping silent through letting sliding of connecting pipe, effectively avoids among the prior art anastomat subassembly centre gripping tissue and cutting tissue to accomplish by the cutting knife and arouse probably to push out the jaw with the tissue, and the technical problem that the too big easy destruction of drive disk assembly atress leads to the medical accident to appear in operation process doctor carelessly operating.
Further, the distal end of the connecting tube comprises at least one tightening member, and when the tightening member slides from an initial position to a first position near the staple abutting seat, the distal end of the staple abutting seat and the distal end of the staple box base are changed from an open state to a closed state; when the tightening member returns from the first position of the near end of the nail abutting seat to the initial position in a sliding mode, the far end of the nail abutting seat and the far end of the nail box base are changed from a closed state to an open state.
According to the clamping device, the far end of the connecting pipe is provided with the tightening member, so that the tightening member can slide to complete the clamping action of the jaw.
Furthermore, slope-shaped limiting grooves are respectively formed in the outer sides of two side walls of the near end of the nail box base, limiting blocks are respectively arranged on the outer sides of two side walls of the near end of the nail abutting seat, and after the near end of the nail abutting seat is movably connected with the near end of the nail box base, the limiting blocks can slide in the limiting grooves under the pushing of the tightening member.
This application makes to support nail seat near-end and nail casket base's near-end swing joint through controlling the cooperation at the stopper of supporting the nail seat and the spacing groove of nail casket base, accomplishes the action of closing and opening in a flexible way under the effect of tightening up the component.
Further, the length of the limiting block is larger than the thickness of the side wall of the proximal end of the nail box base.
Further, when the tightening member slides from the initial position to the first position of the proximal end of the nail abutting seat, the limiting block slides along the limiting groove in a climbing manner, and the distal end of the nail abutting seat and the distal end of the nail box base move relatively until the nail box base is closed; when the tightening member slides from the first position of the near end of the nail abutting seat to the initial position, the limiting block slides along the limiting groove in a sliding manner, so that the far end of the nail abutting seat and the far end of the nail box base move relatively until the nail box base is opened.
The distal end of spacing groove is higher than the near-end of spacing groove in this application, makes the spacing groove be crooked landslide shape by distal end to near-end direction, when being convenient for tighten up the component and slide, supports that the nail seat can be nimble to nail casket base direction closed and open.
Further, the upper surface of the proximal end of the nail abutting seat is provided with a limiting part, and the limiting part is used for preventing the tightening member from continuously sliding towards the distal end.
In order to make the tightening member add the holding power more stable in this application, set up stop part at the nail seat near-end upper surface of supporting to guarantee to tighten up the sliding distance of member, make the promotion stop part that the tightening member can be stable, the clamp force is more stable when keeping silent the closure.
Further, when the tightening member slides from the initial position to the first position at the proximal end of the staple abutting seat until the tightening member is stopped from sliding continuously by the limiting part, the distal end of the staple abutting seat and the distal end of the staple box base move relatively to each other to reach a closed state; when the tightening member slides from the first position of the near end of the nail abutting seat to the initial position, the far end of the nail abutting seat and the far end of the nail box base move relatively to reach an opening state.
The tightening component is controlled by the limiting part to slide between the initial position and the first position of the near end of the nail seat, so that the jaws can be kept in a closed and opened state.
Furthermore, the limiting part is step-shaped.
The height of the limiting part in the application can prevent the tightening member from sliding, so that the tightening member is controlled.
Further, nail casket base near-end both sides wall inboard is equipped with perpendicularly relatively respectively nail casket base bottom surface's recess, the recess can hold the stopper, the stopper is followed the recess slides and makes it gets into to support the nail seat near-end nail casket base near-end bottom surface, with the axis of supporting nail seat near-end stopper makes as the axle support the nail seat distal end and rotate to the near-end, thereby makes it gets into to support nail seat near-end stopper in the nail casket base lateral wall spacing groove.
This application is in order to guarantee to support nail seat near-end and nail casket base near-end swing joint, sets up the recess in nail casket base near-end lateral wall inboard to make to support nail seat and the smooth swing joint of nail casket base.
Furthermore, at least one protrusion is arranged on the upper surface of the near end of the nail abutting seat, at least one hollow groove is correspondingly arranged on the upper surface of the tightening member, and the far end of the hollow groove is lower than the upper surface of the tightening member, so that when the tightening member slides from the first position of the near end of the nail abutting seat to the initial position, the nail abutting seat can be pulled to perform an opening action.
This application is through the hollow groove of tightening up the component and the bellied cooperation that supports the nail seat, and when making to tighten up the component and reset, support the nail seat and can open in a flexible way.
Further, the proximal end of the tightening member is provided with a pair of axially aligned tightening member free ends protruding from the distal end to the proximal end, the distal end of the connecting tube is correspondingly provided with a pair of axially aligned connecting tube free ends protruding from the proximal end to the distal end, and the tightening member free ends are connected with the corresponding connecting tube free ends through connecting pieces.
The tightening component is connected with the far end of the connecting pipe through the connecting piece, so that an operator can flexibly bend the anastomat assembly conveniently, and the anastomat is more suitable for various operations.
The invention also aims to solve the technical problem that the anastomat assembly in the prior art is likely to push tissues out of a jaw due to the fact that tissue clamping and tissue cutting are completed by a cutting knife, and a transmission part is prone to damage due to overlarge stress.
In order to solve the technical problem, the invention also provides the anastomat which comprises the anastomat assembly.
After adopting such design, the invention has at least the following advantages:
(1) the invention finishes the clamping action of the jaw by the sliding of the connecting pipe, and effectively avoids the technical problems that the tissue is possibly pushed out of the jaw and the transmission part is easily damaged due to the overlarge stress of the tissue clamping and cutting actions of the anastomat assembly in the prior art which are finished by the cutting knife, so that medical accidents occur due to careless operation of a doctor in the operation process.
(2) According to the invention, the clamping action and the cutting anastomosis action are separated by adding the tightening component, so that the clamping force is more stable, the stress of the cutting part is smaller, the operator saves more labor, the hand feeling is better, the surgical risk is reduced, and the operation efficiency is improved.
(3) The tightening component is connected with the far end of the connecting pipe by the connecting piece, so that an operator can flexibly bend the anastomat assembly conveniently, and the anastomat is more suitable for various operations.
(4) The invention has simple structure, good effect, low cost and easy process realization.
Drawings
The foregoing is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description.
FIG. 1 is a block diagram of the construction of a stapler assembly according to the invention;
FIG. 2 is a schematic view of a portion of the internal structure of the stapler assembly of the present invention;
FIG. 3 is an enlarged schematic view of the structure of FIG. 2;
FIG. 4 is a schematic view of the tightening member structure of the present invention;
FIG. 5 is a schematic view of the nail pushing seat, the nail magazine base and the tightening member according to the present invention;
in the reference numerals, 1 is a nail abutting seat, 11 is a limiting block, 12 is a limiting step, 13 is a protrusion, 2 is a nail box component, 21 is a nail box base, 211 is a limiting groove, 212 is a groove, 3 is a connecting pipe, 31 is a tightening component, 311 is a free end of the tightening component, 312 is a cantilever, and 32 is a free end of the connecting pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In this document, "upper", "lower", and the like are used only to indicate relative positional relationships between the relevant portions, and are not limited to absolute positions of the relevant portions.
Unless otherwise indicated, numerical ranges herein include not only the entire range within its two endpoints, but also several sub-ranges subsumed therein.
Hereinafter, the end of each member closer to the operator is defined as the proximal end, and the end farther from the operator is defined as the distal end. The expressions proximal and distal are only used for simplicity and clarity of description and should not be construed as limiting the invention in any way.
As shown in fig. 1-5, the embodiment of the invention discloses a stapler assembly, which comprises a nail abutting seat 1 and a nail box assembly 2, wherein the nail box assembly 2 comprises a nail box base 21, the near end of the nail abutting seat 1 is movably connected with the near end of the nail box base 21, the far end of the nail abutting seat 1 and the far end of the nail box base 21 can move relatively to close and open, the stapler assembly further comprises a connecting tube 3, the near end of the nail abutting seat 1 and the near end of the nail box base 21 are respectively connected with the far end of the connecting tube 3, and the connecting tube 3 can control the far end of the nail abutting seat 1 and the far end of the nail box base 21 to close and open through sliding motion.
Specifically, the connecting tube 3 is a hollow sleeve and can slide from the near end to the far end under the action of external force, the connecting tube 3 can accommodate the near end of the nail abutting seat 1 and the near end of the nail box base 21, when the connecting tube 3 slides towards the far end, the far end of the nail abutting seat 1 and the far end of the nail box base 21 enter the connecting tube 3, the connecting tube 3 slides to the upper surface of the far end of the nail abutting seat 1, the far end of the nail abutting seat 1 is enabled to approach the far end of the nail box base 21, until the far end of the nail abutting seat 1 and the far end of the nail box base 21 are completely closed to reach a closed state, and at the moment, the connecting tube 3 stops sliding. When the connecting tube 3 moves back and slides, the far end of the nail abutting seat 1 is far away from the far end of the nail box base 21 until the far end of the nail abutting seat 1 and the far end of the nail box base 21 are completely opened to reach an opening state, and at the moment, the connecting tube 3 stops sliding and returns to the initial position.
Here, when the distal end of the nail abutting seat 1 and the distal end of the nail magazine base 21 are completely closed to reach the closed state, the tissue to be cut is stably clamped, and the operator further performs the cutting operation, so that the surgical risk is reduced, the operation of the doctor is comfortable, and the surgical efficiency is improved.
Furthermore, in the embodiment of the present invention, the distal end of the connecting tube 3 includes a tightening member 31, the tightening member 31 can accommodate the proximal end of the nail holder 1 and the proximal end of the magazine base 21, the maximum sliding position of the tightening member 31 from the initial position to the distal end is set as the first position, when the tightening member 31 slides to the first position of the proximal end of the nail holder 1, the distal end of the nail holder 1 and the distal end of the magazine base 21 are changed from the open state to the closed state; when the tightening member 31 slides back to its initial position, the distal end of the anvil 1 and the distal end of the magazine base 21 change from the closed state to the open state.
In the embodiment of the present invention, the number of the tightening members 31 is not limited, and the number of the tightening members 31 may be one, or may be a plurality of tightening members connected in series with each other, as long as the tightening members can slide under the pushing of the connecting pipe 3.
The far end of the tightening member 31 includes two upper and lower tightening member free ends 311 protruding from the far end to the near end, the far end of the connecting tube 3 also includes two upper and lower near ends 32 protruding from the far end, the two tightening member free ends 311 are movably connected with the two connecting tube free ends 32, specifically, the two tightening member free ends 311 and the two connecting tube free ends 32 are respectively provided with through holes, and the two tightening member free ends 311 and the two connecting tube free ends 32 are respectively connected together through two connecting pieces. The connecting piece comprises a first cylindrical boss and a second cylindrical boss, and the first cylindrical boss and the second cylindrical boss are respectively connected with a free end 311 hole of the tightening member and a free end 32 hole of the connecting pipe.
In the embodiment of the present invention, the two free ends 311 of the tightening member are axially symmetrical, specifically, may be arranged up and down correspondingly, or may be arranged left and right correspondingly, and may be arranged at specific positions according to actual needs, which is not limited herein. Accordingly, the two connecting tube free ends 32 and the two tightening member free ends 311 respectively axially correspond.
In one embodiment, two side walls of the proximal end of the nail magazine base 21 are respectively provided with an arc-shaped slope-shaped limiting groove 211, the outer sides of two side walls of the proximal end of the nail abutting base 1 are respectively provided with a limiting block 11, the limiting groove 211 can accommodate the limiting block 11, so that the limiting block 11 can slide in the limiting groove 211, the length of the limiting block is greater than the thickness of the side wall of the nail magazine base 21, in an initial state, the limiting block 11 is positioned at the bottom end of the limiting groove 211, and the proximal end of the nail magazine base 21 is movably connected with the proximal end of the nail abutting base 1;
the stopper 11 may be cylindrical or conical, and the shape of the stopper 11 is not limited herein. The width of the limiting groove 211 can be larger than the maximum outer diameter of the limiting block 11, and only the limiting block 11 can be ensured to freely slide in the limiting groove 211.
When the tightening member 31 slides from the initial position to the first position on the upper surface of the proximal end of the nail abutting seat 1, the limiting block 11 climbs and slides along the limiting groove 211, the distal end of the nail abutting seat 1 and the distal end of the nail box base 21 move relatively until the closing is reached, and at the moment, the limiting block 11 reaches the distal end of the limiting groove 211, so that the tissue to be cut is stably clamped;
when the tightening member 31 slides from the first position of the proximal end of the nail abutting seat 1 to the initial position, the limiting groove 211 is in a slope shape, and the limiting block 11 slides along the limiting groove 211 in a slope manner, so that the distal end of the nail abutting seat 1 and the distal end of the nail cartridge base 21 move relatively until reaching the opening state, thereby completing the operation.
Preferably, the tightening member 31 can be designed to push the stopper 11 to slide as required, and the tightening member 31 contacts with the stopper 11 to push the stopper 11 to slide along the stopper groove 211. The length of the stopper 11 protrudes from the surface of the side wall of the magazine base 21, so that when the tightening member 31 slides from the initial position to the first position abutting against the surface of the staple holder 1, the tightening member 31 can push the stopper, so that the jaws can complete the closing action quickly.
Here, the arc-shaped slope-shaped limiting groove 211 may be in a slope shape from the distal end to the proximal end, or in an upward slope shape from the distal end to the proximal end, when the limiting groove 211 is in a slope shape from the distal end to the proximal end, the tightening member 31 pushes the nail abutting seat 1 to move relatively toward the magazine base 21 in the sliding process; when the limiting groove 211 is in an upward slope shape from the far end to the near end, the tightening member 31 pushes the nail box base 21 to move relatively towards the nail seat 1 in the sliding process; can be set according to actual requirements.
Furthermore, the inner sides of the two side walls of the proximal end of the magazine base 21 are respectively provided with a groove 212 perpendicular to the bottom surface of the magazine base 21, and the groove 212 can accommodate the limit block 11, so that the limit block 11 can slide in the groove 212. Specifically, the limiting block 11 slides along the groove 212 to enable the proximal end of the nail abutting seat 1 to enter the bottom surface of the proximal end of the nail box base 21, and the distal end of the nail abutting seat 1 rotates towards the proximal end by taking the proximal end surface of the nail abutting seat 1 as an axis, so that the limiting block 11 at the proximal end of the nail abutting seat 1 enters the limiting groove 211 on the side wall of the nail box base 21.
In another embodiment, the upper surface of the proximal end of the staple abutting seat 1 is provided with a limiting part, and the limiting part is used for preventing the tightening member 31 from continuously sliding towards the distal end, and when the tightening member 31 continuously slides, the staple abutting seat 1 is pushed to move towards the jaw closing direction until the staple abutting seat 1 and the staple box base 21 are completely closed.
The limiting part is in a step shape, for convenience of description, the step is defined as a limiting step 12, and the height of the limiting step 12 is such that the tightening member 31 can be prevented from sliding, so as to control the tightening member 31.
On the other hand, the tightening member 31 controls the relative movement of the anvil distal end and the magazine base distal end by pushing the limit step 12 until the closure is reached.
When the tightening member 31 slides from the initial position to the first position on the upper surface of the proximal end of the nail abutting seat 1, the proximal end of the nail abutting seat 1 and the proximal end of the nail magazine base 21 enter the tightening member 31, the tightening member 31 continues to move towards the distal end, so that the distal end of the nail abutting seat 1 and the distal end of the nail magazine base 21 relatively move, the tightening member 31 stops moving towards the distal end under the action of the limiting step 12, the distal end of the nail abutting seat 1 and the distal end of the nail magazine base 21 are closed, and the tightening member 31 moves to the first position on the upper surface of the proximal end of the nail abutting seat 1;
when the tightening member 31 is reset and slides from the first position of the upper surface of the proximal end of the nail abutting seat 1 to the initial position, the distal end of the nail abutting seat 1 and the distal end of the magazine base 21 move relatively until the opening is reached, and the tightening member 31 moves to the initial position, thereby completing the reset.
With reference to the above embodiments, the stapler assembly may include a nail cartridge base 21, two side walls of the proximal end of the nail cartridge base 21 are respectively provided with an arc-shaped slope-shaped limiting groove 211, two side walls of the proximal end of the nail abutting seat 1 are respectively provided with a limiting block 11, the upper surface of the proximal end of the nail abutting seat 1 is provided with a limiting step, and in this structure, the distance from the tightening member 31 to the limiting step is not greater than the length of the limiting groove 211.
Furthermore, in some embodiments, at least one protrusion 13 may be disposed on the upper surface of the proximal end of the nail seat 1, and the upper surface of the tightening member 31 is correspondingly provided with at least one hollow groove, the distal end of the hollow groove is lower than the upper surface of the tightening member 31, so that when the tightening member 31 slides from the first position of the proximal end of the nail seat 1 to the initial position, the nail seat 1 can be pulled to perform the opening action.
In this embodiment, the distal end of the hollow groove is lower than the upper surface of the tightening member 31, specifically, the tightening member 31 is sleeved on the proximal ends of the nail seat 1 and the magazine base 21, the protrusion 13 of the nail seat surface extends into the hollow groove of the tightening member 31, the distal end of the tightening member 31 at least includes a cantilever 312, the cantilever 312 is bent inward, and the free end of the cantilever 312 is lower than the surface of the tightening member 31.
Specifically, in order to ensure that the distal end of the nail abutting seat 1 and the distal end of the nail magazine base 21 can be smoothly opened when the tightening member 31 is reset, a protrusion is arranged at the proximal end of the nail abutting seat 1, the tightening member 31 is sleeved at the proximal ends of the nail abutting seat 1 and the nail magazine base 21, when the tightening member 31 slides from an initial position to a first position on the upper surface of the proximal end of the nail abutting seat 1, the proximal end of the nail abutting seat 1 and the proximal end of the nail magazine base 21 enter the tightening member 31, the tightening member 31 continues to move towards the distal end, so that the distal end of the nail abutting seat 1 and the distal end of the nail magazine base 21 relatively move, the protrusion at the proximal end of the nail abutting seat enters a hollow groove of the tightening member, the tightening member 31 stops continuing to move towards the distal end under the action of the limiting step 12, so that the distal end of the nail abutting seat 1 and the distal end of the nail magazine base 21 are closed, and the tightening member 31 moves to the first position on the upper surface of the proximal end of the nail abutting seat 1; when the tightening member 31 is reset and slides from the first position of the upper surface of the proximal end of the nail abutting seat 1 to the initial position, the hollow groove of the tightening member 31 pulls the protrusion of the proximal end of the nail abutting seat 1 to drive the distal end of the nail abutting seat 1 to open relative to the distal end of the nail cartridge base 21 because the protrusion 13 of the proximal end of the nail abutting seat 1 is higher than the upper surface of the tightening member, thereby completing the reset.
In some embodiments, there is no limitation on the distance between the distal cantilever 312 of the hollow channel of the tightening fixture 31 and the proximal end of the hollow channel.
An embodiment of the application discloses a stapler, which comprises the stapler assembly.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims (12)

1. The utility model provides an anastomat assembly, anastomat assembly is including supporting nail seat, nail casket subassembly includes nail casket base, support nail seat near-end with nail casket base near-end swing joint, support nail seat distal end with but nail casket base distal end relative motion carries out closure and opens, a serial communication port, anastomat assembly still includes and links the pipe, support the nail seat the near-end with the near-end swing joint of nail casket base, the near-end setting of nail casket base is in the distal end of linking the pipe, it can control through the action of sliding to link the pipe support the nail seat the distal end with nail casket base distal end is closed and is opened.
2. The stapler assembly of claim 1, wherein the distal end of the connecting tube includes at least one tightening member, wherein the distal end of the anvil and the distal end of the staple cartridge base change from an open state to a closed state when the tightening member is slid from an initial position to a first position proximal to the anvil; when the tightening member returns from the first position of the near end of the nail abutting seat to the initial position in a sliding mode, the far end of the nail abutting seat and the far end of the nail box base are changed from a closed state to an open state.
3. The stapler assembly according to claim 2, wherein the magazine base has two side walls at a proximal end thereof respectively provided with a slope-shaped limiting groove, the nail abutting seat has two side walls at a proximal end thereof respectively provided with a limiting block, and the limiting blocks can slide in the limiting grooves under the pushing of the tightening member after the proximal end of the nail abutting seat is movably connected with the proximal end of the magazine base.
4. The stapler assembly of claim 2, wherein the stop block has a length greater than a thickness of a proximal sidewall of the magazine base.
5. The stapler assembly of claim 4, wherein when the tightening member slides from the initial position to the first position proximate the staple holder, the stop block slides up and down the stop slot, and the distal end of the staple holder moves relative to the distal end of the staple cartridge base until the closure is reached; when the tightening member slides from the first position of the near end of the nail abutting seat to the initial position, the limiting block slides along the limiting groove in a sliding manner, so that the far end of the nail abutting seat and the far end of the nail box base move relatively until the nail box base is opened.
6. The stapler assembly of claim 3 or 4, wherein the upper surface of the proximal end of the staple holder is provided with a stop feature for preventing further distal sliding movement of the tightening member.
7. The stapler assembly of claim 6, wherein the distal end of the staple holder moves relative to the distal end of the staple cartridge base to a closed position as the tightening member slides from the initial position to the first proximal anvil position until the stop feature is encountered to prevent further sliding movement of the tightening member; when the tightening member slides from the first position of the near end of the nail abutting seat to the initial position, the far end of the nail abutting seat and the far end of the nail box base move relatively to reach an opening state.
8. The stapler assembly of claim 6, wherein the stop member is stepped.
9. The stapler assembly according to claim 6, wherein the inside of the two side walls of the proximal end of the magazine base are respectively and oppositely provided with a groove perpendicular to the bottom surface of the magazine base, the groove can accommodate the limiting block, the limiting block slides along the groove to enable the proximal end of the nail abutting seat to enter the bottom surface of the proximal end of the magazine base, and the axis of the limiting block at the proximal end of the nail abutting seat is used as an axis to enable the distal end of the nail abutting seat to rotate towards the proximal end, so that the limiting block at the proximal end of the nail abutting seat enters the limiting groove on the side wall of the magazine base.
10. The stapler assembly of claim 3, wherein the staple holder includes at least one protrusion on an upper surface of a proximal end thereof, and the tightening member includes at least one hollow slot on an upper surface thereof, a distal end of the hollow slot being lower than the upper surface of the tightening member, such that the staple holder is pulled to expand when the tightening member is slid from the first position of the proximal end of the staple holder to the initial position.
11. The stapler assembly of claim 3, wherein the proximal end of the fastening member defines a pair of axially aligned proximally projecting fastening member free ends, the distal end of the tube defines a pair of axially aligned proximally projecting tube free ends, and the fastener free ends are connected to the respective tube free ends by a connector.
12. A stapler comprising a stapler assembly according to any one of claims 1-11.
CN202110526785.6A 2021-05-14 2021-05-14 Anastomat assembly and anastomat Pending CN113143364A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110526785.6A CN113143364A (en) 2021-05-14 2021-05-14 Anastomat assembly and anastomat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110526785.6A CN113143364A (en) 2021-05-14 2021-05-14 Anastomat assembly and anastomat

Publications (1)

Publication Number Publication Date
CN113143364A true CN113143364A (en) 2021-07-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110526785.6A Pending CN113143364A (en) 2021-05-14 2021-05-14 Anastomat assembly and anastomat

Country Status (1)

Country Link
CN (1) CN113143364A (en)

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