Anastomat assembly with auxiliary membrane and endoscope anastomat

Abstract

The anastomat assembly comprises a nail bin assembly, a nail abutting seat assembly and a cutting knife, the nail bin assembly comprises a nail bin body, a nail bin pushing block is arranged at the front end of the nail bin assembly, a nail bin auxiliary film limiting boss is arranged at the rear end of the nail bin assembly, the nail bin auxiliary film is pre-connected to the nail bin body, and the head of the nail bin auxiliary film is pressed by the nail bin pushing block. The tail part is fixed by a limiting boss; the nail abutting base assembly comprises a nail abutting base, a nail abutting base clamping piece is arranged at the front end, a nail abutting base auxiliary film limiting boss is arranged at the rear end, a nail abutting base auxiliary film is pre-connected to the base, the head of the nail abutting base auxiliary film is pressed by the nail abutting base clamping piece, and the tail of the nail abutting base auxiliary film is fixed by the limiting boss. When the cutting knife is triggered, the nail bin pushing block and the nail abutting seat clamping piece are driven to move between the initial position and the triggering position. By means of the mode, the fixing structures are additionally arranged on the nail abutting seat and the nail bin to fix the auxiliary film in advance, the nail pushing sliding block and the cutting knife are utilized to enable the fixing structures to be invalid, the auxiliary film is separated from the anastomat assembly, operation steps are optimized, cost is reduced, and operation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to anastomat technical field especially anastomat assembly and endoscope anastomat with auxiliary membrane. BACKGROUND

[0002] Endoscope anastomat is a kind of high-precision medical instrument for minimally invasive surgery (such as laparoscopic surgery), mainly used for cutting, suturing and anastomosis of tissue, and the core working principle is to anastomose and amputate tissue through titanium nail and cutting knife, which significantly improves surgical efficiency and reduces patient trauma.

[0003] The anvil seat, nail box base and nail cartridge assembly are key components of the endoscope anastomat, and the rationality of their design directly affects the anastomosis effect and safety. The use of auxiliary membrane can further enhance the anastomosis effect. Currently, the auxiliary membrane usually adopts a sleeve structure composed of biological material and detachable fixing wire. When used, the auxiliary membrane is sleeved on the anvil seat and nail cartridge assembly, and after closing the tissue, the fixing wire is removed to release the constraint, thereby realizing its function.

[0004] However, in the prior art, the installation and fixing operation of the auxiliary membrane is relatively complex, the efficiency is low, and the cost is high, which is specifically manifested in that:

[0005] Complex operation: the sleeve and the removal of the fixing wire of the auxiliary membrane are cumbersome, which increases the operation time and operation difficulty;

[0006] Low efficiency: the cumbersome operation process reduces the surgical efficiency and affects the overall efficiency of the operation;

[0007] High cost: the structural design of the auxiliary membrane and the use of the fixing wire increase the material and production cost. INVENTION CONTENTS

[0008] The utility model mainly solves the technical problem to provide anastomat assembly and endoscope anastomat with auxiliary membrane, increase the fixed structure on the anvil seat and nail cartridge, pre-fix the auxiliary membrane on the anvil seat and nail cartridge, make the fixed structure invalid by the nail pushing slider and cutting knife, so that the auxiliary membrane is separated from the anastomat assembly, optimize the operation steps and cost, and improve the surgical efficiency.

[0009] To solve the above technical problems, one technical scheme of the utility model is to provide anastomat assembly with auxiliary membrane, comprising: nail cartridge assembly, anvil seat assembly and cutting knife,

[0010] The nail cartridge assembly comprises: nail cartridge body, nail cartridge pushing block and nail cartridge auxiliary membrane:

[0011] The staple cartridge pushing block is installed at the front end of the staple cartridge body, the rear end of the staple cartridge body is provided with a staple cartridge auxiliary film limiting boss, the staple cartridge auxiliary film is pre-connected to the staple cartridge body, the head of the staple cartridge auxiliary film is fixedly pressed by the staple cartridge pushing block, and the tail of the staple cartridge auxiliary film is fixedly limited by the staple cartridge auxiliary film limiting boss,

[0012] The pushing-nail sliding block is installed in the staple cartridge body, and when the pushing-nail sliding block slides relative to the staple cartridge body, the pushing-nail sliding block can drive the staple cartridge pushing block to move between the initial position and the firing position;

[0013] The nail abutting seat assembly comprises a nail abutting seat, a nail abutting seat clamping piece and a nail abutting seat auxiliary film.

[0014] The nail abutting seat clamping piece is installed at the front end of the nail abutting seat, the rear end of the nail abutting seat is provided with a nail abutting seat auxiliary film limiting boss, the nail abutting seat auxiliary film is pre-connected to the nail abutting seat, the head of the nail abutting seat auxiliary film is fixedly pressed by the nail abutting seat clamping piece, and the tail of the nail abutting seat auxiliary film is fixedly limited by the nail abutting seat auxiliary film limiting boss,

[0015] The pushing-nail sliding block slides synchronously with the cutting knife, and the nail abutting seat clamping piece can be driven to move between the initial position and the firing position.

[0016] In a preferred embodiment of the utility model, the front end of the staple cartridge body is provided with a pushing block groove capable of accommodating the staple cartridge pushing block, and the two side end faces of the staple cartridge pushing block are provided with clamping bosses which are adapted with the pushing block groove to form detachable connection.

[0017] In a preferred embodiment of the utility model, the bottom end face of the staple cartridge pushing block is provided with a groove position which cooperates with a rib position on the pushing-nail sliding block to guide the sliding of the pushing-nail sliding block, and the rear end face of the staple cartridge pushing block is provided with a pushing boss used for pushing out the pushing-nail sliding block.

[0018] In a preferred embodiment of the utility model, the tail end face of the staple cartridge pushing block is provided with a plug-in boss, the head of the staple cartridge auxiliary film is provided with a staple cartridge auxiliary film insertion hole, and the plug-in boss is adapted with the staple cartridge auxiliary film insertion hole.

[0019] In a preferred embodiment of the utility model, the clamping boss is a circular arc boss, the pushing boss is a square boss, and the plug-in boss is a round boss.

[0020] In a preferred embodiment of the utility model, the front end of the nail abutting seat is provided with a nail abutting seat clamping piece groove which is communicated with the cutter groove on the nail abutting seat to jointly accommodate the nail abutting seat clamping piece.

[0021] In a preferred embodiment of the utility model, the top of the nail abutting seat clamping piece is provided with a buckle step which cooperates with the inner wall surface of the nail abutting seat clamping piece groove to form detachable connection, the tail of the nail abutting seat clamping piece is provided with an extension boss which extends to contact the cutting knife to push out the cutting knife.

[0022] In a preferred embodiment of the present application, the nail abutment seat clamping piece bottom is provided with an elastic fixing boss, which is attached to the nail abutment seat groove surface to limit the nail abutment seat auxiliary film in the nail abutment seat.

[0023] In a preferred embodiment of the present application, the elastic fixing boss can be a circular arc surface elastic boss.

[0024] In a preferred embodiment of the present application, in the initial position: the nail cartridge pushing block is fixedly connected in the pushing block groove through the clamping boss, the plug-in boss is inserted into the nail cartridge auxiliary film insertion hole of the nail cartridge auxiliary film to clamp the nail cartridge auxiliary film; the nail abutment seat clamping piece is fixedly connected in the nail abutment seat clamping piece groove through the buckle step, and the elastic fixing boss is attached to the nail abutment seat groove surface to clamp the nail abutment seat auxiliary film; in the firing position: the nail cartridge pushing block is pushed out by the nail pushing block, so that the plug-in boss is separated from the nail cartridge auxiliary film insertion hole of the nail cartridge auxiliary film, so that the nail cartridge auxiliary film is separated from the nail cartridge body; the nail abutment seat clamping piece is pushed out by the cutting knife, and the elastic fixing boss is deformed after being extruded by the thrust force to separate from the nail abutment seat groove surface, so that the nail abutment seat auxiliary film is separated from the nail abutment seat.

[0025] To solve the above technical problems, another technical scheme adopted by the present application is to provide a cavity mirror anastomat, comprising the anastomat assembly with auxiliary film.

[0026] The present application has the advantages that: by adding a fixing structure on the nail abutment seat and the nail cartridge, the auxiliary film can be accurately positioned in advance, without additional operation in the operation; after tissue anastomosis and disconnection, the fixing structure automatically fails, so that the auxiliary film is easily separated from the cavity mirror anastomat, simplifying the operation process, saving the cumbersome traditional fixing line removal, and greatly improving the operation efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating laborious work, wherein:

[0028] Figure 1 is a structure schematic view of a preferred embodiment of the anastomat assembly of the present application;

[0029] Figure 2 is a structure schematic view of a preferred embodiment of the nail cartridge body of the present application;

[0030] Figure 3 is a structure schematic view of a preferred embodiment of the nail cartridge auxiliary film fixedly connected to the nail cartridge body of the present application;

[0031] Figure 4 is a structure schematic view of a preferred embodiment of the staple cartridge push block of the utility model;

[0032] Figure 5 is a structure schematic view of the staple cartridge push block in the initial position of the utility model;

[0033] Figure 6 is a structure schematic view of the staple cartridge push block in the firing position of the utility model;

[0034] Figure 7 is a structure schematic view of a preferred embodiment of the staple cartridge seat of the utility model;

[0035] Figure 8 is a structure schematic view of the auxiliary film of the staple cartridge seat of the utility model is fixed in a preferred embodiment of the staple cartridge seat;

[0036] Figure 9 is a structure schematic view of a preferred embodiment of the staple cartridge seat clamping piece of the utility model;

[0037] Figure 10 is a structure schematic view of the staple cartridge seat clamping piece in the initial position of the utility model;

[0038] Figure 11 is a structure schematic view of the staple cartridge seat clamping piece in the firing position of the utility model;

[0039] The marks of each component in the drawing are as follows:

[0040] 100, staple cartridge assembly, 110, staple cartridge body, 111, push block slot, 120, staple cartridge push block, 121, clamping boss, 122, slot, 123, push boss, 124, plug-in boss, 130, staple cartridge auxiliary film, 131, staple cartridge auxiliary film insertion hole, 140, staple cartridge auxiliary film limiting boss;

[0041] 200, staple cartridge seat assembly, 210, staple cartridge seat, 211, staple cartridge seat clamping piece slot, 220, staple cartridge seat clamping piece, 221, buckle step, 222, extension boss, 223, elastic fixing boss, 230, staple cartridge seat auxiliary film, 240, staple cartridge seat auxiliary film limiting boss. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical scheme and advantages of the utility model embodiments clearer, the technical scheme in the utility model embodiments will be described clearly and completely below in combination with the drawings in the utility model embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the utility model embodiments described and shown in the drawings here can be arranged and designed in various different configurations.

[0043] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0044] The present application relates to a preferred embodiment of an anastomat assembly with an auxiliary film.

[0045] As shown in Figure 1 The anastomat assembly with an auxiliary film includes a cartridge assembly 100, a staple seat assembly 200 and a cutting knife, the staple seat assembly 200 is rotatably connected to the cartridge assembly 100, and a push-staple slider is installed inside the cartridge assembly 100. When the anastomat assembly works, the cutting knife is fired and moves synchronously with the push-staple slider to realize the cutting and anastomosis action.

[0046] As shown in Figures 2-4 The cartridge assembly 100 includes a cartridge body 110, a cartridge push block 120 and a cartridge auxiliary film 130, the cartridge push block 120 is installed at the front end of the cartridge body 110, and the rear end of the cartridge body 110 is provided with a cartridge auxiliary film limiting boss 140.

[0047] The cartridge auxiliary film 130 is pre-connected to the cartridge body 110, wherein the head of the cartridge auxiliary film 130 is fixed by being pressed by the cartridge push block 120, and the tail of the cartridge auxiliary film 130 is fixed by being limited by the cartridge auxiliary film limiting boss 140, so as to ensure that the cartridge auxiliary film 130 is stably fixed on the cartridge body 110.

[0048] The push-staple slider is installed in the cartridge body 110, and when the push-staple slider slides relative to the cartridge body 110, the push-staple slider can drive the cartridge push block to move between the initial position and the firing position.

[0049] In detail, the front end of the cartridge body 110 is provided with a push block groove 111 for accommodating the cartridge push block 120. The two side end faces of the cartridge push block 120 are provided with clamping bosses 121, the cartridge push block 120 is adapted with the push block groove 111 through the clamping bosses 121 to form a detachable connection, and the installation or disassembly of the cartridge push block 120 can be completed through convenient push-pull operation, which is convenient for maintenance and replacement. Preferably, the clamping bosses 121 are arc bosses, which can naturally guide during disassembly and assembly, have small friction, and ensure quick and easy disassembly and assembly.

[0050] Secondly, the bottom end face of the cartridge push block 120 is provided with a groove 122, which is matched with a rib on the push-staple slider to guide the sliding of the push-staple slider.

[0051] The rear end surface of the staple cartridge push block 120 is provided with a push boss 123, which can push out the pusher slider during the firing process, thereby realizing the movement of the staple cartridge push block 120 from the initial position to the firing position. Preferably, the push boss 123 is a square boss, which can provide stable pushing force during the firing process.

[0052] Further, the rear end surface of the staple cartridge push block 120 is provided with an insertion boss 124, which is matched with the staple cartridge auxiliary film insertion hole 131 of the head of the staple cartridge auxiliary film 130, and is used to clamp the head of the staple cartridge auxiliary film 130. At the same time, the tail of the staple cartridge auxiliary film 130 is limited in the staple cartridge auxiliary film limiting boss 140. Through this structure design, the head and tail of the staple cartridge auxiliary film 130 are firmly compressed and fixed, which ensures the stability during use. Preferably, the insertion boss 124 is a round boss, which is matched with the staple cartridge auxiliary film insertion hole to realize the stable clamping of the auxiliary film.

[0053] As shown in Figure 5 , when the staple cartridge push block 120 is in the initial position: the staple cartridge push block 120 is fixedly connected in the push block groove 111 through the clamping boss 121, and at the same time, the insertion boss 124 on the staple cartridge push block 120 is inserted into the staple cartridge auxiliary film insertion hole 131 of the staple cartridge auxiliary film 130, so that the head of the staple cartridge auxiliary film 130 is clamped at the front end of the staple cartridge body 110.

[0054] When the anastomat assembly is fired, the cutting knife and the pusher slider act, and the staple cartridge push block 120 is pushed out to the firing position by the pusher slider, as shown in Figure 6 , at this time, the cutting knife cuts the staple cartridge auxiliary film 130, and at the same time, the insertion boss 124 is separated from the staple cartridge auxiliary film insertion hole 131 of the staple cartridge auxiliary film 130, so that the staple cartridge auxiliary film 130 can be separated from the staple cartridge body 110.

[0055] As shown in Figures 7-9 , the butt seat assembly 200 includes a butt seat 210, a butt seat clamping piece 220 and a butt seat auxiliary film 230: the butt seat clamping piece 220 is installed at the front end of the butt seat 210, and the butt seat 210 is provided with a butt seat auxiliary film limiting boss 240 at the rear end.

[0056] The butt seat auxiliary film 230 is pre-connected to the butt seat 210, wherein the head of the butt seat auxiliary film 230 is fixedly compressed by the butt seat clamping piece 220, and the tail of the butt seat auxiliary film 230 is fixedly limited by the butt seat auxiliary film limiting boss 240, which ensures that the butt seat auxiliary film 230 is stably fixed on the butt seat 210.

[0057] In detail, the front end of the butt seat 210 is provided with a butt seat clamping piece groove 211, which is communicated with the knife groove on the butt seat 210, so as to jointly accommodate the butt seat clamping piece 220.

[0058] The top of the anvil holder 220 is provided with a buckle step 221, which cooperates with the inner wall surface of the anvil holder slot 211 to form a detachable connection. The anvil holder 220 can be installed or removed by a convenient pressing operation. It has good guiding properties and is easy to maintain and replace.

[0059] Secondly, the rear end of the anvil holder 220 is provided with an extension boss 222, which extends to contact the cutting blade. During firing, the extension boss can push out the cutting blade, thereby realizing the movement of the anvil holder 220 from the initial position to the firing position.

[0060] Furthermore, the bottom of the anvil holder 220 is provided with an elastic fixing boss 223, which fits against the anvil holder groove surface to confine the anvil holder auxiliary film 230 within the anvil holder 210. Simultaneously, the tail of the anvil holder auxiliary film 230 is confined within the anvil holder auxiliary film limiting boss 240. Through this structural design, the head and tail of the anvil holder auxiliary film 230 are firmly pressed and fixed, ensuring stability during use.

[0061] Preferably, the elastic fixing boss 223 can be an arc-shaped elastic boss. The arc-shaped surface can make uniform contact with the surface of the anvil auxiliary film 230, and at the same time has a certain elastic deformation to ensure a tight fit between the anvil auxiliary film 230 and the anvil.

[0062] like Figure 10 As shown, when the anvil holder 220 is in the initial position: the anvil holder 220 is fixed in the anvil holder slot 211 by the snap step 221, and at the same time, the elastic fixing boss 223 on the anvil holder 220 fits against the groove surface of the anvil holder 210, so that the head of the anvil holder auxiliary film 230 is snapped into the front end of the anvil holder 210.

[0063] When the stapler assembly is fired, the cutting blade actuates, and the anvil retainer 220 is pushed to the firing position by the cutting blade, such as... Figure 11 As shown, at this time, the cutting blade cuts the anvil auxiliary film 230, and at the same time, the elastic fixing boss 223 is deformed by the pushing force and disengages from the groove surface of the anvil 210, so that the anvil auxiliary film 230 disengages from the anvil 210.

[0064] This utility model also relates to a laparoscopic anastomosis device, which includes the above-mentioned anastomosis device assembly with an auxiliary membrane. By adding a fixing structure to the anvil and the staple cartridge to pre-fix the auxiliary membrane, and then using the pusher slider and the cutter to disable the fixing structure, the auxiliary membrane is detached from the anastomosis device assembly, thereby optimizing the operation steps and costs and improving surgical efficiency.

[0065] The advantages of this utility model of an anastomosis device assembly with an auxiliary membrane and a laparoscopic anastomosis device are:

[0066] By adding corresponding fixing structures on the anvil and the cartridge, the auxiliary film is pre-fixed on the anvil and the cartridge, and precise positioning of the auxiliary film can be achieved without additional operation during the operation;

[0067] When the anastomosis and disconnection of the tissue are completed, the fixing structure is automatically disabled under the mechanical action, so that the auxiliary film smoothly separates from the stapler assembly;

[0068] The operation steps are simplified, the cumbersome operation of removing the traditional fixing line is avoided, the operation efficiency is improved, the operation difficulty and the operation time are reduced, higher convenience and reliability are brought to the clinical operation.

[0069] The above only describes the embodiments of the present application, and does not limit the patent range of the present application, any equivalent structure or equivalent process conversion made by using the content of the present application specification, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. An anastomosis device assembly with an adjunct film comprising: The staple cartridge assembly, the anvil seat assembly and the cutting knife are characterized in that, The staple cartridge assembly comprises a staple cartridge body, a staple cartridge push block and a staple cartridge auxiliary film: The staple cartridge push block is installed at the front end of the staple cartridge body, the rear end of the staple cartridge body is provided with a staple cartridge auxiliary film limiting boss, the staple cartridge auxiliary film is pre-connected to the staple cartridge body, the head of the staple cartridge auxiliary film is fixedly pressed by the staple cartridge push block, and the tail of the staple cartridge auxiliary film is fixedly limited by the staple cartridge auxiliary film limiting boss, The push-staple sliding block is installed in the staple cartridge body, and when the push-staple sliding block slides relative to the staple cartridge body, the push-staple sliding block can drive the staple cartridge push block to move between an initial position and a firing position; The anvil seat assembly comprises an anvil seat, an anvil seat clamping piece and an anvil seat auxiliary film: The anvil seat clamping piece is installed at the front end of the anvil seat, the rear end of the anvil seat is provided with an anvil seat auxiliary film limiting boss, the anvil seat auxiliary film is pre-connected to the anvil seat, the head of the anvil seat auxiliary film is fixedly pressed by the anvil seat clamping piece, and the tail of the anvil seat auxiliary film is fixedly limited by the anvil seat auxiliary film limiting boss, The push-staple sliding block slides synchronously with the cutting knife, and the anvil seat clamping piece can be driven to move between the initial position and the firing position.

2. The stapler assembly with an adjunct film of Claim 1, wherein, The front end of the staple cartridge body is provided with a push block groove capable of accommodating the push block, and the two side end faces of the push block are provided with clamping bosses which are adapted with the push block groove to form detachable connection.

3. The stapler assembly with an adjunct film of Claim 2, wherein, The bottom end face of the push block is provided with a slot which cooperates with a rib on the push-staple sliding block to guide the sliding of the push-staple sliding block, and the rear end face of the push block is provided with a pushing boss for ejecting the push-staple sliding block.

4. The stapler assembly with an adjunct film of Claim 3, wherein, The tail end face of the push block is provided with an insertion boss, and the head of the staple cartridge auxiliary film is provided with a staple cartridge auxiliary film insertion hole, and the insertion boss is adapted with the staple cartridge auxiliary film insertion hole.

5. The stapler assembly with an adjunct film of Claim 4, wherein, The clamping boss is a circular boss, the pushing boss is a square boss, and the insertion boss is a round boss.

6. The stapler assembly with an adjunct film of Claim 1, wherein, The front end of the anvil seat is provided with an anvil seat clamping piece groove which is communicated with a knife groove on the anvil seat to jointly accommodate the anvil seat clamping piece.

7. The stapler assembly with an adjunct film of Claim 6, wherein, The top of the anvil seat clamping piece is provided with a clamping step which cooperates with the inner wall surface of the anvil seat clamping piece groove to form detachable connection, and the tail of the anvil seat clamping piece is provided with an extension boss which extends to contact the cutting knife to eject the cutting knife.

8. The stapler assembly with an adjunct film of Claim 7, wherein, The bottom of the anvil seat clamping piece is provided with an elastic fixing boss which is attached to the groove surface of the anvil seat to limit the anvil seat auxiliary film in the anvil seat.

9. The stapler assembly with an adjunct film of Claim 8, wherein, The elastic fixing boss can be a circular arc elastic boss.

10. The stapler assembly with an adjunct film of Claim 9, wherein, In the initial position, the push block is fixedly connected in the push block groove through the clamping boss, the insertion boss is inserted into the staple cartridge auxiliary film insertion hole of the staple cartridge auxiliary film to clamp the staple cartridge auxiliary film, the anvil seat clamping piece is fixedly connected in the anvil seat clamping piece groove through the clamping step, and the elastic fixing boss is attached to the groove surface of the anvil seat to clamp the anvil seat auxiliary film; In the firing position, the push block is pushed out by the push-staple sliding block, the insertion boss is separated from the staple cartridge auxiliary film insertion hole of the staple cartridge auxiliary film, the anvil seat clamping piece is pushed out by the cutting knife, the elastic fixing boss is deformed after being pressed by the thrust force, and the anvil seat auxiliary film is separated from the anvil seat.

11. A laparoscopic stapler, comprising: The anastomat assembly comprising the auxiliary film as claimed in any one of claims 1-10.

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