Appendix and mesentery dual cutting closer

By designing adjustable fixing rods and clamps, the problem of inconsistent staple heights between the appendix and mesentery in traditional staplers was solved, enabling safe suturing of the appendix and mesentery and rapid disassembly of the staple cartridge.

CN120284359BActive Publication Date: 2026-05-15THE FIRST AFFILIATED HOSPITAL OF CHONGQING MEDICAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
THE FIRST AFFILIATED HOSPITAL OF CHONGQING MEDICAL UNIVERSITY
Filing Date
2024-01-19
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Traditional linear staplers cause inconsistent staple heights during appendectomy and mesentery resection, leading to damage and inconvenience in changing the staple cartridge.

Method used

A dual-cutting closure device for appendix and mesentery was designed. By setting an adjustable fixing rod and clamping block, the staple heights of the appendix and mesentery are ensured to be different. A detachable staple cartridge structure is adopted to simplify the replacement process.

Benefits of technology

This method achieves high consistency in the stapling of the appendix and mesentery, reduces the risk of damage, simplifies the disassembly process of the stapling cartridge, and improves operational efficiency.

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Abstract

The application relates to the technical field of medical devices, in particular to an appendix and mesentery double-cutting closer, which comprises a casing, a fixed rod is slidably connected to the inner wall of the casing, one end of the fixed rod is provided with a power mechanism capable of controlling the left-right movement of the fixed rod, the power mechanism is fixedly installed in the casing, the left end surface of the casing is fixedly connected with a fixed tube capable of limiting the fixed rod, the outer surface of the fixed rod is slidably connected with the inner part of the fixed tube, the end, away from the casing, of the fixed tube is rotatably connected with a clamping block and a clamping box, the inner wall of the clamping box is slidably connected with a moving block, one side of the moving block is fixedly connected with a blade capable of cutting the appendix mesentery, the clamping block and the clamping box are rotatable in the opposite direction to clamp and fix the appendix and the mesentery, a nail bin is slidably connected in the clamping box, a dismounting mechanism capable of dismounting the nail bin is installed on the inner wall of the clamping box, a thrust mechanism capable of providing thrust to the blade is slidably installed on the outer surface of the fixed tube, the thrust mechanism can provide thrust to the blade to cut the appendix and the mesentery.
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Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a double-cutting closure device for the appendix and mesentery. Background Technology

[0002] A linear anastomosis device, also known as a digestive tract closure device, is an instrument that inserts multiple staggered sutures into tissue in a straight line. It is one of the most widely used instruments to replace manual linear suturing. It is mainly used to suture and close the stumps of the stomach, duodenum, small intestine, and colon, and is a full-thickness eversion suture.

[0003] Currently, traditional linear staplers have a drawback: the operating skills of physicians vary, and the surgical procedures are inconsistent. When performing appendectomy, the mesentery and appendix need to be removed simultaneously, and the staple heights of the appendix and mesentery are different. Therefore, traditional staplers have limitations in removing the appendix and mesentery. In addition, when changing the staple cartridge of a traditional stapler, the replacement is done by snap-fitting, which is not very convenient when removing it.

[0004] A search revealed prior art publication number CN102599954B, which discloses a linear cutting stapler with a double safety mechanism, capable of loading a linear cutting element while simultaneously performing surgical suturing and cutting. It includes a closing safety mechanism, a firing safety mechanism, a left side plate, a partition, a drive plate, a pad, a right side plate, a housing, a closing handle, a firing handle component, a left support plate, and a right support plate. The linear cutting stapler can load or remove linear cutting elements. The closing safety mechanism includes a push button, a pin seat, a first pin, a closing safety component, a torsion spring, and a pin. The closing safety component is connected to the torsion spring via the first pin, and the torsion force of the torsion spring causes a hook on the closing safety component to prevent the partition from moving. The firing safety mechanism includes a spring, a second pin, and a firing safety block. The firing safety block is connected to the spring via the second pin, and the spring's elasticity causes a hook on the firing safety block to prevent the drive plate from moving.

[0005] Therefore, based on the above search and combined with existing methods, the above-mentioned solutions cannot control the stapling height inside the stapling cartridge. As a result, when removing the mesentery and appendix, the stapling height will be uniform, which may cause damage to the appendix or mesentery. Traditional staplers also have a slow stapling cartridge replacement time. To solve the problems of uniform stapling height and slow stapling cartridge replacement time when removing the mesentery and appendix, we propose a dual-cutting closure device for the appendix and mesentery. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a dual appendix and mesentery cutting and closing device. By fixing the appendix and mesentery, the heights of the appendix block and the mesentery block are different, and the heights of the staples are also different. This solves the problems of uniform staple height during mesentery and appendix removal and the slow staple cartridge replacement time of traditional anastomosing devices.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] An appendix and mesentery double cutting closure device includes a housing, a fixed rod slidably connected to the inner wall of the housing, a power mechanism that can control the left and right movement of the fixed rod at one end of the fixed rod, the power mechanism being fixedly installed inside the housing, a fixed tube that can limit the position of the fixed rod being fixedly connected to the left end face of the housing, the outer surface of the fixed rod being slidably connected to the inside of the fixed tube, and a clamping block and a clamping box being rotatably connected to the end of the fixed tube away from the housing.

[0009] A movable block is slidably connected to the inner wall of the clamp box. A blade for cutting the appendix mesentery is fixedly connected to one side of the movable block. The clamp block can clamp and fix the appendix and mesentery by rotating in the opposite direction to the clamp box. A staple cartridge is slidably connected inside the clamp box. A disassembly mechanism for disassembling the staple cartridge is installed on the inner wall of the clamp box. A thrust mechanism that can provide thrust to the blade is slidably installed on the outer surface of the fixing tube. The thrust mechanism can provide thrust to the blade to cut the appendix and mesentery.

[0010] As a further aspect of this solution, the power mechanism includes a motor, which is fixedly mounted on the inner wall of the housing. A gear is fixedly connected to the output end of the housing, and a sliding plate is slidably connected to the inner wall of the housing.

[0011] As a further aspect of this solution, one end of the slide plate is fixedly connected to a fixed rod, and a rack is fixedly connected to the bottom of the slide plate, with the rack meshing with a gear.

[0012] As a further part of this solution, the thrust mechanism includes a slider, which is slidably connected to the inner wall of the fixed tube. Pushing grooves are provided on both sides of the inner wall of the fixed tube. The outer surface of the slider is fixedly connected to the sliding tube. One end of the slider abuts against the fixed rod. A tension spring that can reset the slider is sleeved on the outer surface of the fixed rod. One end of the tension spring is fixedly connected to the slider, and the end of the tension spring away from the slider is fixedly connected to the inner wall of the fixed tube.

[0013] As a further aspect of this solution, a push rod is fixedly connected to the end of the slider away from the fixed rod, a limiting spring that can reset the inclined wall is fixedly connected to the end of the sliding tube away from the slider, a funnel tube is fixedly connected to the end of the limiting spring away from the sliding tube, the funnel tube is slidably connected to the outer surface of the fixed tube, and the limiting spring is sleeved on the outer surface of the fixed tube.

[0014] As a further aspect of this solution, an elastic torsion spring is installed between the clamping block and the clamping box and the fixed tube to facilitate the reset of the clamping block and the clamping box.

[0015] As a further part of this solution, the disassembly mechanism includes a telescopic rod, one side of which is fixedly connected to the inner wall of the clamping box, and a retractable arm is fixedly connected to the inner wall of the clamping box.

[0016] As a further aspect of this solution, a return spring is fixedly installed inside the retractable arm, and a pulling column is fixedly connected to the inner wall of the retractable arm, with the return spring sleeved on the outer surface of the pulling column.

[0017] As a further aspect of this solution, the clip box is provided with two sets of mounting grooves to facilitate the fixing of the staple cartridge.

[0018] As a further aspect of this solution, the bottom of the clamping block is provided with several nail-forming grooves that can bend the titanium alloy nails inside the nail magazine.

[0019] Compared with the prior art, the present invention provides a dual appendix and mesentery cutting and closing device, which has the following beneficial effects:

[0020] 1. In this appendix and mesentery double cutting and closing device, when the titanium staples inside the staple chamber are used to suture the appendix, the staple height of the titanium staples during cecal suturing is inconsistent with that of the mesentery. The closure thickness of the appendix and cecum is thicker than that of the mesentery after suturing. Therefore, the staple height of the titanium staples is high, while that of the mesentery is low. Consequently, the heights of the mesentery block and the appendix block are inconsistent. When the mesentery block and the appendix block abut against the titanium staples inside the staple chamber, the titanium staples deform upon contact with the staple groove, which can fix the appendix and mesentery.

[0021] 2. This appendix and mesentery double-cutting closure device differs from traditional anastomotic devices which use a snap-fit ​​method for mounting the staple cartridge. Instead, the staple cartridge features a slanted groove. The cartridge is then inserted into the clamp via a mounting groove. When the slanted groove of the cartridge abuts against a limiting block, the telescopic rod is compressed by the cartridge, causing the telescopic spring to contract. When the limiting block moves away from the groove, the control over the cartridge is released, and the telescopic spring returns to hold the cartridge in place, clamping it against the retracting arm for fixation. After appendectomy, removing the cartridge is relatively cumbersome. By pulling the handle, the retracting arm and limiting block contract, moving away from the telescopic rod. The telescopic spring inside the rod then resets, ejecting the cartridge. This makes cartridge removal simple and quick. Attached Figure Description

[0022] Figure 1 This is a three-dimensional front view of the present invention;

[0023] Figure 2 This is a schematic diagram showing the position of the three-dimensional power mechanism structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the position structure of the three-dimensional dynamic slide rail of the present invention;

[0025] Figure 4 This is a schematic diagram of the position structure of the three-dimensional tension spring of the present invention;

[0026] Figure 5 This is a schematic diagram of the three-dimensional push groove position structure of the present invention;

[0027] Figure 6 This is a schematic diagram of the cross-sectional structure of the three-dimensional sliding tube of the present invention;

[0028] Figure 7 This is a schematic diagram of the three-dimensional staple cartridge location structure of the present invention;

[0029] Figure 8 This is a schematic diagram of the positional structure of the three-dimensional funnel tube of the present invention;

[0030] Figure 9 This is a schematic diagram of the position structure of the membrane block in the three-dimensional system of the present invention;

[0031] Figure 10 This is a schematic diagram of the position structure of the three-dimensional elastic torsion spring of the present invention;

[0032] Figure 11 This is a schematic diagram of the internal structure of the three-dimensional telescopic rod of the present invention;

[0033] Figure 12 This is a schematic diagram of the internal structure of the three-dimensional retractable arm of the present invention;

[0034] Figure 13 This is a schematic diagram of the three-dimensional inclined groove position structure of the present invention;

[0035] Figure 14 This is a schematic diagram illustrating the nail-forming principle of the three-dimensional nail cartridge of the present invention.

[0036] In the diagram: 1. Sliding tube; 2. Housing; 3. Handle; 4. Rack; 5. Slide plate; 6. Fixed rod; 7. Motor; 8. Switch; 9. Inclined groove; 10. Power slide rail;

[0037] 11. Gear; 12. Return torsion spring; 13. Push groove; 14. Tension spring; 15. Fixing tube; 16. Slider; 17. Push rod; 18. Limiting slide; 19. Handle;

[0038] 20. Inclined wall; 21. Funnel tube; 22. Clamping block; 23. Clamping box; 24. Blade; 25. Staple cartridge; 26. Telescopic rod; 27. Retractable arm;

[0039] 28. Moving slide; 29. ​​Appendicium abutment; 30. Mesentery abutment; 31. Moving block; 32. Elastic torsion spring; 33. Telescopic spring; 34. Limiting block;

[0040] 35. Return spring; 36. Pulling column; 37. Nail slot; 38. Limiting spring; 39. Limiting displacement block; 40. Mounting slide; 101. Power mechanism; 201. Disassembly mechanism; 301. Thrust mechanism. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] As described in the background section, there are shortcomings in the existing technology. In order to solve the above-mentioned technical problems, this application proposes a double-cutting closure device for the appendix and mesentery.

[0043] Example 1: Please refer to Figure 1-6 The present invention relates to a double-cutting closure device for appendix and mesentery, comprising a housing 2, a fixed rod 6 slidably connected to the inner wall of the housing 2, a power mechanism 101 for controlling the left and right movement of the fixed rod 6 at one end, the power mechanism 101 being fixedly installed inside the housing 2, a handle 3 being installed at the bottom of the housing 2, a battery for providing power to the power mechanism 101 being fixedly installed inside the handle 3, and a rotatable reset switch 8 being rotatably connected to the bottom of the housing 2. The handle 3 allows medical staff to easily control the position of the housing 2, and the battery can effectively provide power to the power mechanism 101, allowing medical staff to adjust the position of the housing 2 at will during work, reducing the limitations of the work site. The switch 8 allows medical staff to cooperate with the handle 3, making it easier for staff to grip the device. A fixing tube 15 for limiting the position of the fixed rod 6 is fixedly connected to the left end face of the housing 2, the outer surface of the fixed rod 6 is slidably connected to the inside of the fixing tube 15, and a clamping block 22 and a clamping box 23 are rotatably connected to the end of the fixing tube 15 away from the housing 2.

[0044] Please refer to Figure 9A movable block 31 is slidably connected to the inner wall of the clamp box 23. A blade 24 for cutting the appendix mesentery is fixedly connected to one side of the movable block 31. The clamping block 22 and the clamp box 23 can be rotated in opposite directions to clamp and fix the appendix and mesentery. The clamping block 22 and the clamp box 23 are installed symmetrically from top to bottom. A staple cartridge 25 is slidably connected inside the clamp box 23. Specifically, the clamp box 23 has an installation cavity, and the staple cartridge 25 is slidably connected in the installation cavity. When the clamping block 22 and the clamp box 23 rotate in opposite directions, the appendix and mesentery can be clamped and fixed. A disassembly mechanism 201 for disassembling and fixing the staple cartridge 25 is installed on the inner wall of the clamp box 23. A thrust mechanism 301 for providing thrust to the blade 24 is slidably installed on the outer surface of the fixing tube 15. The thrust mechanism 301 can provide thrust to the blade 24 to cut the appendix and mesentery.

[0045] Example 2: Please refer to Figure 2-3 As shown, the power mechanism 101 includes a motor 7, which is fixedly installed on the inner wall of the housing 2. A gear 11 is fixedly connected to the output end of the housing 2. Two sets of power slide rails 10 are provided on the inner wall of the housing 2. A slide plate 5 is slidably connected to the inner wall of the power slide rails 10. The power slide rails 10 are located at both ends of the inner wall of the housing 2. The slide plate 5 slides on the inner wall of the power slide rails 10. The power slide rails 10 can limit the slide plate 5 to prevent it from shaking during use and affecting the use of medical staff. One end of the slide plate 5 is fixedly connected to a fixed rod 6. A rack 4 is fixedly connected to the bottom of the slide plate 5. The rack 4 meshes with the gear 11.

[0046] Please refer to Figure 3-7As shown, the thrust mechanism 301 includes a slider 16, which is slidably connected inside the fixed tube 15. Pushing grooves 13 are provided on both sides of the inner wall of the fixed tube 15. Limiting displacement blocks 39 are fixedly connected to both sides of the slider 16. The outer surface of the limiting displacement blocks 39 is slidably connected to the inner wall of the pushing groove 13, and the outer surface of the limiting displacement blocks 39 is fixedly connected to the sliding tube 1. The limiting displacement blocks 39 fixedly connected to both sides of the slider 16 slide on the inner wall of the pushing groove 13. When the slider 16 is pushed by the fixed rod 6, the limiting displacement blocks 39 can limit the slider 16, ensuring that the slider 16 will not rotate under the action of the limiting displacement blocks 39 when pushed by the fixed rod 6. The two sides of the slider 16 abut against the fixed rod 6. A tension spring 14 that can reset the slider 16 is sleeved on the outer surface of the fixed rod 6. One end of the tension spring 14 is fixedly connected to the slider 16, and the end of the tension spring 14 away from the slider 16 is connected to the inner wall of the fixed tube 15. The sliding tube 16 is fixedly connected to the wall. The end of the slider 16 away from the fixed rod 6 is fixedly connected to the push rod 17. Several limiting slides 18 are fixedly connected to the outer surface of the push rod 17. The outer surface of the limiting slides 18 abuts against the inner wall of the fixed tube 15. The limiting slides 18 can effectively limit the position of the push rod 17, so that the push rod 17 always stays in the center inside the fixed tube 15. When the push rod 17 is pushed, one end of the push rod 17 always abuts against the center of the moving block 31, so that the moving block 31 is pushed better. The end of the sliding tube 1 away from the gear 11 is fixedly connected to the limiting spring 38. The end of the limiting spring 38 away from the sliding tube 1 is fixedly connected to the funnel tube 21. The funnel tube 21 is slidably connected to the outer surface of the fixed tube 15. The funnel tube 21 is provided with an inclined wall 20 inside. The inclined wall 20 can accommodate the end of the clamping block 22 that contacts the clamping box 23. The tension spring 14 is sleeved on the outer surface of the fixed tube 15.

[0047] Please refer to Figure 8-9 As shown, the inner wall of the clamping box 23 is provided with a sliding groove 28 that limits the sliding of the moving block 31. The moving block 31 is slidably connected to the inner wall of the sliding groove 28. The sliding groove 28 can limit the moving block 31 when it slides, preventing the moving block 31 from shaking and deviating during movement. The mesentery abutment block 30 and appendix abutment block 29 are fixedly connected to both the front and rear sides of the moving block 31. The mesentery abutment block 30 and appendix abutment block 29 have different heights. When the titanium staples inside the staple chamber 25 are used to suture the appendix, the staple height of the titanium staples is inconsistent with that of the mesentery during cecal suturing. The thickness of the closure after appendiceal-cecal suturing is thicker than that after mesentery suturing. The titanium staples have a higher staple height and the mesentery has a lower staple height. The mesentery abutment block 30 and appendix abutment block 29 have different heights.

[0048] Please refer to Figure 6 , 10As shown, elastic torsion springs 32 are installed between the clamping block 22 and the clamping box 23 and the fixing tube 15 to facilitate the reset of the clamping block 22 and the clamping box 23. Specifically, one end of the two sets of elastic torsion springs 32 is fixedly connected to the outer surface of the fixing tube 15, and the end of the two sets of elastic torsion springs 32 away from the fixing tube 15 is fixedly connected to the clamping block 22 and the clamping box 23 respectively.

[0049] Please refer to Figure 8 , 11 As shown in Figure 12, the disassembly mechanism 201 includes a telescopic rod 26. One side of the telescopic rod 26 is fixedly connected to the inner wall of the clamping box 23. A telescopic spring 33 is fixedly installed inside the telescopic rod 26. A retractable arm 27 is fixedly connected to the inner wall of the clamping box 23. A limit block 34 is fixedly connected to the top of the retractable arm 27. A return spring 35 is fixedly installed inside the retractable arm 27. A pulling column 36 is fixedly connected to the inner wall of the retractable arm 27. The return spring 35 is sleeved on the outer surface of the pulling column 36. A handle 19 is rotatably connected to the end of the pulling column 36 away from the retractable arm 27. The handle 19 is connected to the pulling column 36. A reset torsion spring 12 is installed between 6 to reset the handle 19. Specifically, one end of the reset torsion spring 12 is fixedly connected to the pull column 36, and the end of the reset torsion spring 12 away from the pull column 36 is fixedly connected to the handle 19. When medical staff need to pull the pull column 36, the handle 19 can make it easier for staff to pull the pull column 36. The reset torsion spring 12 can reset the handle 19. The clamp box 23 has two sets of inclined grooves 9 for fixing the staple cartridge 25. The clamp box 23 has two sets of installation grooves 40 for fixing the staple cartridge 25.

[0050] Please refer to Figure 13 , 14 As shown, the bottom of the clamping block 22 is provided with several nail-forming grooves 37 that can bend and abut against the titanium alloy nails inside the nail magazine 25.

[0051] Working principle of this invention: When it is necessary to remove the appendix and mesentery, hold the handle 3 with your hand, align the clamping block 22 and the clamping box 23 with the boundary between the appendix and the mesentery, place the mesentery abutment block 30 above the appendix, so that the appendix abutment block 29 is located at the mesentery, start the motor 7, the motor 7 will drive the gear 11 to rotate, the gear 11 will drive the rack 4 to move, the rack 4 will drive the slide plate 5 and the fixing rod 6 to move, the fixing rod 6 will abut against the slider 16, the slider 16 will be pushed by the fixing rod 6 to move, the slider 16 will drive the push rod 17 and the sliding tube 1 to move, the sliding tube 1 will drive the funnel tube 21 to move when it moves, because the push rod 17 is close to the blade 24 One end is a distance away, so that when the funnel tube 21 contacts the clamping block 22 and the clamping box 23, the clamping block 22 and the clamping box 23 will move in opposite directions to clamp the appendix and mesentery. When the sliding tube 1 moves again and the funnel tube 21 is blocked by the clamping block 22 and cannot move, since there is a tension spring 14 between the sliding tube 1 and the funnel tube 21, when the sliding tube 1 continues to move, the tension spring 14 will contract, and the push rod 17 will drive the moving block 31 to move. The moving block 31 will drive the blade 24, the appendix abutment block 29 and the mesentery abutment block 30 to move. The mesentery abutment block 30 and the appendix abutment block 29 will abut against the titanium alloy staples inside the staple cartridge 25 to suture the mesentery and appendix.

[0052] When the titanium staples inside the staple cartridge 25 are used to suture the appendix, the staple height of the titanium staples is inconsistent with that of the mesentery during cecal suturing. The thickness of the closure after appendiceal-cecal suturing is thicker than that after mesentery suturing. The titanium staples have a higher staple height and the mesentery has a lower staple height. The heights of the mesentery block 30 and the appendix block 29 are inconsistent. When the mesentery block 30 and the appendix block 29 abut against the titanium staples inside the staple cartridge 25, the titanium staples deform upon contact with the staple groove 37, which can fix the appendix and mesentery.

[0053] Traditional staplers use a snap-fit ​​method to fix the staple cartridge 25 during installation. The staple cartridge 25 has a groove 9, and it is inserted into the clamp box 23 via the mounting groove 40. When the groove 9 of the staple cartridge 25 abuts against the limiting block 34, the telescopic rod 26 is pressed against the staple cartridge 25, and the telescopic spring 33 is compressed. When the limiting block 34 moves away from the groove 9, the control over the staple cartridge 25 is released, and the telescopic spring 33 will press against the staple cartridge 25, clamping it against the retracting arm 27 for fixation. After appendectomy, removing the staple cartridge 25 is relatively troublesome for medical staff. By pulling the handle 19, the handle 19 causes the retracting arm 27 and the limiting block 34 to retract, moving away from the telescopic rod 26. The telescopic spring 33 inside the telescopic rod 26 will directly reset, ejecting the staple cartridge 25. Removing the staple cartridge 25 is simple and quick.

[0054] Once the excision is complete, the fixing rod 6 is retracted and will move away from the contact of the push rod 17. The tension spring 14 will then pull the slider 16 and the push rod 17 back to their original positions.

[0055] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-cutting closure device for appendix and mesentery, comprising a housing (2), characterized in that: A fixing rod (6) is slidably connected to the inner wall of the housing (2). One end of the fixing rod (6) is provided with a power mechanism (101) that can control the left and right movement of the fixing rod (6). The power mechanism (101) is fixedly installed inside the housing (2). A fixing tube (15) that can limit the fixing rod (6) is fixedly connected to the left end face of the housing (2). The outer surface of the fixing rod (6) is slidably connected to the inside of the fixing tube (15). A clamping block (22) and a clamping box (23) are rotatably connected to the end of the fixing tube (15) away from the housing (2). The inner wall of the clamp box (23) is slidably connected to a moving block (31). A blade (24) for cutting the appendix mesentery is fixedly connected to one side of the moving block (31). The clamping block (22) can clamp and fix the appendix and mesentery by rotating in the opposite direction to the clamp box (23). A staple cartridge (25) is slidably connected inside the clamp box (23). A disassembly mechanism (201) for disassembling the staple cartridge (25) is installed on the inner wall of the clamp box (23). A thrust mechanism (301) for providing thrust to the blade (24) is slidably installed on the outer surface of the fixing tube (15). The thrust mechanism (301) can provide thrust to the blade (24) to cut the appendix and mesentery. The power mechanism (101) includes a motor (7), which is fixedly installed on the inner wall of the housing (2). A gear (11) is fixedly connected to the output end of the housing (2), and a sliding plate (5) is slidably connected to the inner wall of the housing (2). One end of the sliding plate (5) is fixedly connected to a fixed rod (6), and a rack (4) is fixedly connected to the bottom of the sliding plate (5). The rack (4) meshes with the gear (11). The thrust mechanism (301) includes a slider (16), which is slidably connected to the inner wall of a fixed tube (15). Pushing grooves (13) are provided on both sides of the inner wall of the fixed tube (15). The outer surface of the slider (16) is fixedly connected to the sliding tube (1). One end of the slider (16) abuts against a fixed rod (6). A tension spring (14) is sleeved on the outer surface of the fixed rod (6) to reset the slider (16). One end of the tension spring (14) is fixedly connected to the slider (16). The tension spring (14) is located away from the slider. One end of the block (16) is fixedly connected to the inner wall of the fixed tube (15); the end of the slider (16) away from the fixed rod (6) is fixedly connected to the push rod (17); the end of the sliding tube (1) away from the slider (16) is fixedly connected to the limiting spring (38) that can reset the inclined wall (20); the end of the limiting spring (38) away from the sliding tube (1) is fixedly connected to the funnel tube (21); the funnel tube (21) is slidably connected to the outer surface of the fixed tube (15); and the limiting spring (38) is sleeved on the outer surface of the fixed tube (15). An elastic torsion spring (32) is installed between the clamping block (22) and the clamping box (23) and the fixing tube (15) to facilitate the reset of the clamping block (22) and the clamping box (23); the bottom of the clamping block (22) is provided with several nail-forming grooves (37) that can bend the titanium alloy nails inside the nail magazine (25). The disassembly mechanism (201) includes a telescopic rod (26), one side of which is fixedly connected to the inner wall of the clamp box (23), and a retractable arm (27) is fixedly connected to the inner wall of the clamp box (23); a return spring (35) is fixedly installed inside the retractable arm (27), and a pulling column (36) is fixedly connected to the inner wall of the retractable arm (27), and the return spring (35) is sleeved on the outer surface of the pulling column (36).

2. The appendix and mesentery double-cutting closure device according to claim 1, characterized in that: The clip box (23) has two sets of mounting grooves (40) inside to facilitate fixing of the nail cartridge (25).