Self-locking alimentary canal anastomat

Abstract

The utility model relates to the technical field of medical instruments, in particular to a self-locking alimentary canal anastomat which comprises a percussion device, an invasion device and a safety device, the invasion device and the safety device are installed on the percussion device, and the percussion device comprises a shell and a handle rotatably arranged on the shell. A clamping and embedding part and an abutting part are arranged on the face, facing the shell, of the handle, the clamping and embedding part is farther away from the shell compared with the abutting part, the safety device comprises a safety block and a limiting block, one end of the safety block is rotatably arranged on the inner wall of the shell, and the other end of the safety block can abut against the abutting part of the handle. The limiting block is installed at the end, away from the shell, of the safety block. The limiting block can be connected to the clamping and embedding part in a clamped and embedded mode and can unidirectionally move along the clamping and embedding part. According to the utility model, the safety device is arranged between the handle and the shell, and the limiting block cannot be separated from the clamping and embedding part when the handle is loosened, so that the handle is always kept in a compressed state and does not need to be compressed for a long time, and the labor intensity of operators is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a self-locking digestive tract stapler. Background Art

[0002] Stapler is a medical device used to replace traditional manual suturing. Its main working principle is to use titanium nails to separate or staple tissues, similar to a stapler. According to different application scopes, it can be mainly divided into skin staplers, digestive tract circular staplers, rectal staplers, circular hemorrhoid staplers, circumcision staplers, vascular staplers, hernia staplers, lung cutting staplers, etc. Compared with traditional manual suturing, instrument suturing is simple and convenient to operate, saves operation time, is disposable, and prevents cross infection. At the same time, titanium nails or stainless steel nails (skin staplers) are used for suturing, and the suturing is tight and moderately tight, which can effectively reduce surgical complications and shorten patient recovery time. For example, Chinese patent CN101305928A discloses a gastrointestinal tube-type stapler, including a body, a scissor head and a stapler seat; the body includes a shell, an internal control mechanism, a self-locking buckle, a wrench and a head lock; the internal control mechanism includes a spiral propulsion mechanism and a scissor head excitation device; the scissor head includes a plastic head plug, a scissor head jacket, a knife holder piston and a plastic guide cover, which are equipped with staples, a knife holder piston and an annular knife; the stapler seat is plugged into the front end of the shaft; the body is made of metal; at least two shallow boot-shaped notches are opened at the front end of the head lock, and at least two A convex pin is inserted into the aforementioned notch and can be tightened therein by rotating an angle; the anastomosis head excitation device includes a locking positioning block and a locking nut, a spring and an outer sleeve threadedly connected thereto. The above patent is a common gastrointestinal tubular stapler. When in use, the stapler needs to be inserted into the part that needs to be sutured, and then the handle is pressed to trigger the anastomosis. During the anastomosis, the doctor needs to press the handle for at least twenty seconds to ensure hemostasis and improve the anastomosis effect. During this process, the doctor needs to stay still as much as possible to maintain the anastomotic state of the stapler, which makes the operation more cumbersome and cumbersome, affecting the convenience of use.

[0003] Therefore, it is necessary for technical personnel in this field to provide a self-locking digestive tract stapler to reduce the time the operator continues to hold the handle and improve the convenience of operation. Utility Model Content

[0004] The utility model aims to provide a self-locking digestive tract stapler to solve the technical problem that the digestive tract tubular stapler in the prior art needs to be gripped for a long time during use, which affects the convenience of use.

[0005] The technical solution adopted by the present utility model to solve its technical problems is as follows: A self-locking digestive tract anastomosis device includes a firing device, an intrusion device and a safety device installed on the firing device. The firing device includes a housing and a handle rotatably arranged on the housing. A clamping part and an abutting part are provided on the side of the handle facing the housing. The clamping part is farther away from the housing than the abutting part. The safety device includes a safety block and a limiting block. One end of the safety block is rotatably arranged on the inner wall of the housing, and the other end of the safety block can abut against the abutting part of the handle. The limiting block is installed at the end of the safety block away from the housing, and the limiting block can be clamped and connected to the clamping part and can move unidirectionally along the clamping part.

[0006] Further, the safety block has a square block structure, and rotating shafts are symmetrically provided on the safety block. The rotating shafts are rotatably arranged in the wall of the housing, and the safety block can rotate around the axis of the rotating shaft.

[0007] Further, the end of the safety block away from the rotating shaft abuts against the abutting part on the handle, and the safety block is vertically clamped and connected between the handle and the housing.

[0008] Further, the limiting block is made of an elastic material, has a plate-like structure and elastically abuts against the surface of the handle facing the housing, and the end of the limiting block slides along the clamping part.

[0009] Further, a clamping head is provided at the end of the limiting block, and a plurality of clamping grooves are formed on the clamping part. The clamping grooves are evenly arranged on the handle, and the clamping head can be clamped and connected in the clamping grooves.

[0010] Further, both the clamping grooves and the clamping head are in the shape of reverse teeth. The reverse teeth of the clamping head incline towards the safety block, and the reverse teeth of the clamping grooves are in the opposite direction to the reverse teeth of the clamping head. The clamping head is clamped in the clamping grooves and moves unidirectionally along the clamping grooves.

[0011] Further, a pushing device is slidably arranged in the housing, the handle is rotatably arranged in the housing, and the handle abuts against the pushing device.

[0012] Further, staples are provided in the intrusion device, the pushing device can extend into the intrusion device, and the pushing device can push the staples to move.

[0013] The beneficial effects of the present utility model are as follows: The present utility model provides a safety device between the handle and the housing. When the handle is pressed down, the limiting block is clamped and connected into the clamping part. When the handle is released, the limiting block cannot be disengaged from the clamping part, so that the handle always remains in a pressed state. The operator does not need to press the handle for a long time, thereby reducing the labor intensity of the operator. While ensuring the hemostasis effect and anastomosis effect, the use stability and convenience of the present utility model are improved. Brief Description of the Drawings

[0014] Figure 1 is the front view of the self-locking gastrointestinal anastomosis device of the present utility model.

[0015] Figure 2 is the perspective view (omitting the intrusion device) of the self-locking gastrointestinal anastomosis device of the present utility model.

[0016] Figure 3 is Figure 2 the main cross-sectional view.

[0017] Figure 4 is Figure 3 the cross-sectional view along A-A in

[0018] Figure 5 is Figure 2 the isometric schematic diagram (omitting part of the housing).

[0019] Figure 6 is Figure 5 the schematic diagram in another direction.

[0020] Figure 7 is Figure 3 the enlarged partial schematic diagram of part A in

[0021] Figure 8 is Figure 5 the enlarged partial schematic diagram of part B in

[0022] The markings of each component in the drawings are as follows: 10, firing device; 11, housing; 12, handle; 121, clamping part; 122, abutting part; 13, pushing device; 20, intrusion device; 30, safety device; 31, safety block; 311, rotating shaft; 32, limiting block. Detailed Description of the Preferred Embodiment

[0023] The present utility model will be described in detail below with reference to the drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the present utility model in a schematic manner, so it only shows the components related to the present utility model.

[0024] Please refer to Figures 1 to 3 , the present utility model provides a self-locking gastrointestinal anastomosis device, including a firing device 10, an intrusion device 20 and a safety device 30 installed on the firing device 10. The firing device 10 includes a housing 11, a handle 12 installed on the housing 11, and a pushing device 13 slidably arranged in the housing 11. The handle 12 is rotatably arranged in the housing 11, and at the same time, the handle 12 abuts against the pushing device 13 and pushes the pushing device 13 to slide in the housing 11.

[0025] The invasive device 20 is provided with a suture nail, and the pushing device 13 can extend into the invasive device 20, and the pushing device 13 can push the suture nail to move. When in use, the invasive device 20 is installed to the part that needs to be sutured, and the handle 12 is pressed to move the pushing device 13, thereby pushing the suture nail and firing the suture nail to the part that needs to be sutured to achieve suture.

[0026] It can be understood that the self-locking gastrointestinal stapler in this case is a common tubular stapler on the market. The specific structure can be found in Chinese patent CN101305928A which discloses a gastrointestinal tubular stapler. The specific structures of the firing device 10 and the intrusion device 20 in the self-locking gastrointestinal stapler in this case are not described in detail here.

[0027] See also Figures 4 to 8 One end of the handle 12 is rotatably connected to the inner wall of the housing 11, and the other end of the handle 12 extends to the outside of the housing 11. The handle 12 is provided with a locking portion 121 and a contact portion 122 on one side facing the housing 11. The locking portion 121 is farther away from the housing 11 than the contact portion 122.

[0028] The safety device 30 includes a safety block 31 and a limit block 32. One end of the safety block 31 is rotatably arranged on the inner wall of the shell 11, and the other end of the safety block 31 can abut against the abutment portion 122 of the handle 12. The limit block 32 is installed on the end of the safety block 31 away from the shell 11. The limit block 32 can be snap-fitted and connected to the snap-fit ​​portion 121 and can move unidirectionally along the snap-fit ​​portion 121.

[0029] Specifically, the safety block 31 is roughly in a square block structure, and a rotating shaft 311 is symmetrically provided on the safety block 31. The rotating shaft 311 is rotatably arranged in the wall of the shell 11, so that the safety block 31 can rotate around the axis of the rotating shaft 311, and then the end of the safety block 31 away from the rotating shaft 311 is abutted against the abutment 122 on the handle 12, so that the safety block 31 is vertically embedded and connected between the handle 12 and the shell 11, so that the handle 12 cannot be pressed to prevent accidental touching. When in use, it is only necessary to rotate the safety block 31 around the rotating shaft 311 so that the end of the safety block 31 away from the rotating shaft 311 is separated from the abutment 122 on the handle 12, so as to remove the safety and press the handle 12.

[0030] The limit block 32 is made of elastic material, such as spring steel, and has a plate-like structure and elastically abuts against the surface of the handle 12 facing the housing 11, and the end of the limit block 32 slides along the locking portion 121. An locking head (not shown) is provided at the end of the limit block 32, and a plurality of locking grooves (not shown) are formed on the locking portion 121, and the locking grooves are evenly arranged on the handle 12, and the locking head can be locked and connected in the locking grooves.

[0031] When in use, the safety block 31 disengages from the abutment portion 122, and at the same time, the limit block 32 abuts against the locking portion 121 on the handle 12. The operator presses the handle 12, and the limit block 32 slides along the locking portion 121, so that the locking head is locked and connected in the locking groove. At this time, the operator releases the handle 12, and the limit block 32 cannot disengage from the locking portion 121, so that the handle 12 remains in a clamped state. The operator does not need to press the handle 12 for a long time, thereby reducing the operator's labor intensity and improving convenience of use.

[0032] In this embodiment, the embedding groove and the embedding head are both in the shape of inverted teeth, the inverted teeth of the embedding head are inclined toward the safety block 31, and the inverted teeth of the embedding groove are opposite to the inverted teeth of the embedding head, so that the embedding head can be unidirectionally embedded in the embedding groove to prevent it from coming out, and at the same time, the embedding head can slide unidirectionally along the multiple embedding grooves under the pressure of the handle 12, so that the embedding head is continuously and unidirectionally embedded in the embedding grooves in sequence, thereby ensuring the stability of the connection. When the embedding head is embedded in the embedding groove, the safety block 31 is manually moved, and the elastic material of the limit block 32 is used to make the embedding head disengage from the embedding groove, completing the disassembly and releasing the handle 12.

[0033] The specific usage of the utility model is as follows: the intrusion device 20 is installed to the part that needs to be sutured, and then the safety block 31 is separated from the abutment portion 122, and the handle 12 is pressed to move the pushing device 13, thereby pushing the suture nail and firing the suture nail to the part that needs to be sutured, and at the same time, the embedding head is embedded in the embedding groove. At this time, the operator releases the handle 12 so that the handle 12 remains in a compressed state. After twenty seconds, the safety block 31 is manually moved to disengage the embedding head from the embedding groove, and the handle 12 is released to complete the suturing.

[0034] The utility model sets a safety device 30 between the handle 12 and the shell 11, and the limit block 32 is embedded in the embedding portion 121 when the handle 12 is pressed down. When the handle 12 is released, the limit block 32 cannot be separated from the embedding portion 121, so that the handle 12 is always kept in a compressed state. The operator does not need to compress the handle 12 for a long time, thereby reducing the labor intensity of the operator. While ensuring the hemostatic effect and the anastomotic effect, the use stability and convenience of the utility model are improved.

[0035] It can be understood that the present utility model is described by means of some embodiments. Those skilled in the art will be aware that, without departing from the spirit and scope of the present utility model, various changes or equivalent substitutions can be made to these features and embodiments. Additionally, under the teaching of the present utility model, these features and embodiments can be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present utility model.

Claims

1. A self-locking gastrointestinal anastomosis device, comprising a firing device (10), an invasive device (20) and a safety device (30) mounted on the firing device (10), characterized in that, The firing device (10) includes a housing (11) and a handle (12) rotatably provided on the housing (11). On one side of the handle (12) facing the housing (11), there are a clamping portion (121) and an abutting portion (122). The clamping portion (121) is farther from the housing (11) than the abutting portion (122). The safety device (30) includes a safety block (31) and a limiting block (32). One end of the safety block (31) is rotatably provided on the inner wall of the housing (11), and the other end of the safety block (31) can abut against the abutting portion (122) of the handle (12). The limiting block (32) is installed at one end of the safety block (31) away from the housing (11), and the limiting block (32) can be snap-connected to the clamping portion (121) and can move unidirectionally along the clamping portion (121).

2. The self-locking digestive tract stapler according to claim 1, wherein The safety block (31) has a square block structure. Symmetrically provided on the safety block (31) are rotating shafts (311). The rotating shafts (311) are rotatably provided in the wall body of the housing (11), and the safety block (31) can rotate around the axis of the rotating shafts (311).

3. The self-locking digestive tract stapler according to claim 2, wherein, One end of the safety block (31) away from the rotating shafts (311) abuts against the abutting portion (122) on the handle (12), and the safety block (31) is vertically snap-connected between the handle (12) and the housing (11).

4. The self-lockable digestive tract stapler according to claim 1, wherein The limiting block (32) is made of an elastic material. The limiting block (32) has a plate-like structure and elastically abuts against the surface of the handle (12) facing the housing (11), and the end of the limiting block (32) slides along the clamping portion (121).

5. The self-lockable digestive tract stapler according to claim 4, wherein, A clamping head is provided at the end of the limiting block (32). A plurality of clamping grooves are formed on the clamping portion (121). The clamping grooves are evenly distributed on the handle (12), and the clamping head can be snap-connected into the clamping grooves.

6. The self-locking gastrointestinal anastomosis stapler according to claim 5, wherein, Both the clamping grooves and the clamping head are in the shape of reverse teeth. The reverse teeth of the clamping head incline towards the safety block (31), and the reverse teeth of the clamping grooves are in the opposite direction to the reverse teeth of the clamping head. The clamping head is snap-connected into the clamping grooves and moves unidirectionally along the clamping grooves.

7. The self-lockable digestive tract stapler according to claim 1, wherein, A pushing device (13) is slidably provided in the housing (11). The handle (12) is rotatably provided in the housing (11), and the handle (12) abuts against the pushing device (13).

8. The self-locking digestive tract stapler according to claim 7, characterized in that, The intrusion device (20) is provided with sutures. The pushing device (13) can extend into the intrusion device (20), and the pushing device (13) can push the sutures to move.

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