Electric endoscope cutting anastomat

Abstract

The utility model relates to the technical field of surgical staplers, in particular to an electric endoscope cutting stapler which comprises a chuck, a gun barrel and a handle, the handle is arranged at one end of the gun barrel, the other end of the gun barrel is connected with the chuck, the chuck comprises a nail bin clamping plate, a nail box and a nail abutting seat, and a clamping groove is formed in the bottom of the nail box. The clamping groove extends to the side face of the nail box and forms a step on the upper edge of the side face, the nail abutting base is in a U shape and is in butt joint with the clamping groove of the nail box, the nail abutting base comprises a bottom plate and two side plates, the two side plates are provided with limiting holes, the side face of the nail box is correspondingly provided with limiting blocks capable of extending into the limiting holes, and the outer side face of each limiting block is provided with a disassembling groove for a tool to be placed in. According to the electric endoscopic cutting anastomat, the nail box is clamped in the nail abutting base through cooperation of the limiting block and the limiting hole, the disassembling groove is formed in the limiting block, a linear groove is formed in the clamping face of the nail box and the nail abutting base, tools can stretch into the disassembling groove and the linear groove conveniently, and the nail box and the nail abutting base can be disassembled easily.

Description

TECHNICAL FIELD

[0001] The utility model relates to surgical anastomat technical field especially to an electric endoscope cutting anastomat. BACKGROUND

[0002] Endoscope cutting anastomat is one of the important instruments of endoscopic surgery, replaces traditional handwork suture, utilizes titanium nail to carry out disconnection or anastomosis to tissue, and operation is simple, rapid, greatly shortens the operation time, but the existing anastomat assembly is generally through the way of inserting when limiting the nail magazine of anastomat assembly, is inconvenient for subsequent split, reduces the convenience of use.

[0003] Through the retrieval, the patent with disclosure number CN114271887A discloses a disposable endoscopic cutting anastomat assembly, by setting the limiting device, when installing the disposable nail magazine, three groups of spring clamping plates can limit and subsequent split of the disposable nail magazine, provide sufficient elastic force and limiting space, can improve the convenience of positioning and splitting of the disposable nail magazine for the user. But in the actual production process, it will be found that the size of the nail seat is relatively small, it is relatively difficult to set the elastic limiting device inside, and the structure of the elastic limiting device itself is relatively complex, which is not conducive to popularization and use, and there is an urgent need for a structure that can be easily split on the basis of the existing endoscopic cutting anastomat. UTILITY MODEL CONTENTS

[0004] In order to solve the problem that the existing nail magazine and the nail seat are difficult to split, the utility model provides an electric endoscope cutting anastomat, the nail magazine is clamped in the nail seat through the cooperation of the limiting block and the limiting hole, and the limiting block is provided with a dismounting groove, the clamping surface of the nail magazine and the nail seat is formed with a slot, the dismounting groove and the slot are convenient for the tool to enter, and the nail magazine and the nail seat can be easily dismounted.

[0005] The utility model provides an electric endoscope cutting anastomat, which comprises a chuck, a barrel and a handle, one end of the barrel is provided with the handle, the other end is connected with the chuck, the chuck comprises a nail magazine and a nail seat, the nail magazine is arranged in the nail seat, the nail magazine is provided with a clamping groove at the bottom, the clamping groove extends to the side surface of the nail magazine and forms a step on the upper edge of the side surface, the nail seat is in the shape of a trapezoidal and is connected with the clamping groove of the nail magazine, the nail seat comprises a bottom plate and two side plates, limiting holes are formed in the two side plates, the side surface of the nail magazine is provided with a limiting block which can be inserted into the limiting hole, and a dismounting groove is formed on the outer side surface of the limiting block for the tool to be inserted. The nail magazine is clamped into the nail seat through the cooperation of the limiting block and the limiting hole, and when dismounting is needed, a flat and sharp instrument in the medical room is inserted into the dismounting groove to push out the limiting block from the limiting hole.

[0006] Further, the outer side of the limiting block is a slope, the dismounting groove is arranged in the middle of the slope, and the thickness of the limiting block decreases from the end close to the step to the end away from the step. The slope of the outer side of the limiting block is arranged to facilitate the insertion into the limiting hole for fixation.

[0007] Further, the two side plates are provided with an avoiding groove along the upper side, the avoiding groove is arranged above the limiting hole, the avoiding groove of the nail seat and the step of the upper edge of the nail box form a slot for the tool, and the flat sharp instrument in the medical room is inserted into the slot to lift the limiting block out of the limiting hole.

[0008] Further, the avoiding groove and the limiting hole are further provided with a guide wedge surface, the guide wedge surface is in abutment with the outer side of the limiting block and inserts the limiting block into the limiting hole. The slope of the outer side of the limiting block cooperates with the guide wedge surface, so that the limiting block is more easily inserted into the limiting hole for fixation.

[0009] Further, the bottom plate is provided with a positioning block at the front end, the nail box is provided with a positioning groove corresponding to the positioning block, and the positioning groove is communicated with the clamping groove. The relative position of the nail box and the nail seat is further limited through the cooperation of the positioning block and the positioning groove.

[0010] Further, the nail box is provided with a plurality of titanium nails arranged in the shape of a n-shaped groove, the titanium nails slide along the height direction of the nail box, the nail box is provided with a nail pushing groove in the length direction, and the nail pushing groove is arranged at the middle position of the nail box. The arrangement of the nail pushing groove not only facilitates the pushing of the nail, but also enables the nail box to have a certain elasticity, so as to provide a certain space for the limiting block to be lifted out of the limiting hole.

[0011] Further, a nail pusher is arranged in the nail pushing groove in a sliding mode, and the nail pusher is in abutment with the titanium nail to push the titanium nail out of the nail box.

[0012] Further, the two side plates of the nail seat are provided with a scale mark. The scale can help doctors accurately determine the closing position of the chuck, and ensure that the tissue is clamped uniformly.

[0013] The beneficial effects of the utility model lie in:

[0014] The utility model provides a kind of electric endoscope cutting anastomat, limiting block and limiting hole are cooperated to be clamped into nail box in nail seat, and clamping is fixed, when it needs to be split, the flat sharp instrument in medical room is inserted into the slot formed in the dismounting groove or clamping surface of the outer side of limiting block, and limiting block is lifted out of limiting hole, so that split is easily completed. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description, obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0016] Figure 1 is a structural schematic diagram of a cutting anastomat;

[0017] Figure 2 is a structural schematic diagram of a chuck;

[0018] Figure 3 is a first perspective exploded view of the chuck;

[0019] Figure 4 is a second perspective exploded view of the chuck;

[0020] Figure 5 is a bottom view of the chuck;

[0021] In the figure 10. Chuck, 20. Barrel, 30. Handle, 1. Nail cartridge clamping plate, 2. Nail box, 21. Positioning groove, 22. Pushing nail groove, 23. Clamping groove, 24. Step, 25. Limiting block, 26. Disassembly groove, 3. Nail abutting seat, 31. Bottom plate, 32. Side plate, 33. Limiting hole, 34. Avoiding groove, 35. Slit, 36. Guiding wedge surface, 37. Positioning block. DETAILED DESCRIPTION

[0022] The technical solutions of the present application will be described below in conjunction with the drawings, obviously, the described embodiments are some embodiments of the present application, not all embodiments.

[0023] An electric cutting anastomat, as shown in Figure 1 and 2 , comprises a chuck 10, a barrel 20 and a handle 30, the barrel 20 is provided with the handle 30 at one end and connected with the chuck 10 at the other end, the chuck 10 comprises a nail cartridge clamping plate 1, a nail box 2 and a nail abutting seat 3, the nail box 2 is arranged in the nail abutting seat 3, and the nail cartridge clamping plate 1 can be rotatably closed on the nail abutting seat 3. A plurality of titanium nails arranged in the shape of a trapezoidal section are arranged in the nail box 2, the titanium nails slide along the height direction of the nail box 2, a pushing nail groove 22 is arranged in the middle position of the nail box 2 in the length direction of the nail box 2. A nail pusher is arranged in the pushing nail groove 22 in a sliding manner, the nail pusher abuts against the titanium nail to push the titanium nail out of the nail box 2. The above is the structural composition of the mature cutting anastomat, which is described in detail in the patent with the publication number CN113476089A, and will not be described here.

[0024] The core of this technical solution lies in the fact that the bottom of the nail cartridge 2 is provided with a snap-fit ​​groove 23, which extends to the side of the nail cartridge 2 and forms a step 24 on the upper edge of the side. The nail abutment 3 is U-shaped and mates with the snap-fit ​​groove 23 of the nail cartridge 2. The nail abutment 3 includes a bottom plate 31 and two side plates 32. Limiting holes 33 are provided on the side plates 32. A limiting block 25 that can extend into the limiting hole 33 is provided on the side of the nail cartridge 2. The outer side of the limiting block 25 is provided with a disassembly groove 26 for inserting tools. The U-shaped structure of the nail abutment 3 is inserted into the snap-fit ​​groove 23 at the bottom of the nail cartridge 2 until the limiting block 25 snaps into the limiting hole 33, completing the installation of the nail cartridge 2 and the nail abutment 3. When it needs to be disassembled after use, due to the residual tissue on the chuck 10, the limiting block 25 is difficult to pull out from the limiting hole 33, and there is no point of leverage. To facilitate the removal of the nail cartridge 2 from the nail holder 3, a disassembly groove 26 is pre-cut on the outer side of the limiting block 25. The disassembly groove 26 allows sharp instruments in the medical room to be inserted to push the limiting block 25 out of the limiting hole 33, thus completing the disassembly. The nail pusher groove 22 in the middle of the nail cartridge 2 divides the nail cartridge 2 into two parts, giving it a certain degree of elasticity. When a sharp instrument pushes against the limiting block 25, the limiting block 25 can move towards the nail pusher groove 22, making it easier to detach from the limiting hole 33.

[0025] The anvil 3 has scale markings on both side plates 32. The scale markings help doctors accurately determine the closed position of the clamp 10, ensuring that the tissue is clamped evenly.

[0026] like Figures 3-5 As shown, the outer surface of the limiting block 25 is inclined, and the disassembly groove 26 is located in the middle of the inclined surface. The thickness of the limiting block 25 decreases from the end closer to the step 24 to the end farther away from the step 24. The inclined structure of the outer surface of the limiting block 25 makes it easier to be engaged with the limiting holes 33 of the two side plates 32.

[0027] To facilitate the removal of the nail box 2 from the nail holder 3, clearance grooves 34 are provided along the upper edges of the side plates 32. The clearance grooves 34 are correspondingly positioned above the limiting holes 33. The clearance grooves 34 of the nail holder 3 and the steps 24 on the upper edge of the nail box 2 form a slot 35 into which tools can be inserted.

[0028] A guide wedge surface 36 is also provided between the clearance groove 34 and the limiting hole 33. The guide wedge surface 36 abuts against the outer side of the limiting block 25 and pushes the limiting block 25 into the limiting hole 33. The disassembly groove 26 allows sharp instruments in the medical room to be inserted, and assists the limiting block 25 to be smoothly pushed out from the limiting hole 33, completing the disassembly.

[0029] To ensure that the nail box 2 and the nail abutment 3 are engaged in place, a positioning block 37 is provided at the front end of the base plate 31, and a positioning groove 21 is provided at the front end of the nail box 2, into which the positioning block 37 can extend. The positioning groove 21 communicates with the engagement groove 23.

[0030] The above description is only illustrative in nature and is not intended to limit the present application, and those skilled in the art can make many modifications, changes or equivalents without departing from the spirit and scope defined by the appended claims.

Claims

1. An electric laparoscopic cutting and anastomosis device, comprising a clamp (10), a barrel (20), and a handle (30), wherein a handle (30) is provided at one end of the barrel (20), and the clamp (10) is connected to the other end. The clamp (10) includes a staple cartridge clamp (1), a staple magazine (2), and a staple anchor (3). The staple magazine (2) is disposed inside the staple anchor (3), and the staple cartridge clamp (1) is rotatably closed onto the staple anchor (3). Its features are: The bottom of the nail box (2) is provided with a snap-fit ​​groove (23), which extends to the side of the nail box (2) and forms a step (24) on the upper edge of the side. The nail abutment (3) is U-shaped and connects with the snap-fit ​​groove (23) of the nail box (2). The nail abutment (3) includes a bottom plate (31) and two side plates (32). Limiting holes (33) are provided on the two side plates (32). The side of the nail box (2) is provided with a limiting block (25) that can be inserted into the limiting hole (33). The outer side of the limiting block (25) is provided with a disassembly groove (26) for inserting tools.

2. The electric laparoscopic cutting and anastomosis device according to claim 1, characterized in that: The outer side of the limiting block (25) is an inclined surface, the disassembly groove (26) is located in the middle of the inclined surface, and the thickness of the limiting block (25) decreases from the end closer to the step (24) to the end farther away from the step (24).

3. The electric laparoscopic cutting and anastomosis device according to claim 2, characterized in that: The upper edge of the two side plates (32) is provided with a relief groove (34), which is correspondingly provided above the limiting hole (33). The relief groove (34) of the nail seat (3) and the step (24) on the upper edge of the nail box (2) form a slot (35) into which a tool can be inserted.

4. The electric laparoscopic cutting and anastomosis device according to claim 3, characterized in that: A guide wedge surface (36) is also provided between the clearance groove (34) and the limiting hole (33). The guide wedge surface (36) abuts against the outer side of the limiting block (25) and pushes the limiting block (25) into the limiting hole (33).

5. The electric laparoscopic cutting and anastomosis device according to claim 1, characterized in that: The base plate (31) is provided with a positioning block (37) at the front end, and the nail box (2) is provided with a positioning groove (21) at the front end into which the positioning block (37) can extend. The positioning groove (21) is connected to the snap-fit ​​groove (23).

6. The electric laparoscopic cutting and anastomosis device according to claim 1, characterized in that: The nail box (2) contains a number of titanium nails arranged in a U-shape. The titanium nails slide along the height direction of the nail box (2). The nail box (2) has a pusher groove (22) in the length direction. The pusher groove (22) is located in the middle position of the nail box (2).

7. The electric laparoscopic cutting and anastomosis device according to claim 6, characterized in that: A nail pusher is slidably disposed in the nail pusher groove (22), and the nail pusher abuts against the titanium nail to push the titanium nail out from the nail box (2).

8. The electric laparoscopic cutting and anastomosis device according to claim 1, characterized in that: The two side plates (32) of the anvil (3) are provided with scale markings.

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