Anastomotic stoma leakage-proof device

Abstract

The invention belongs to the technical field of medical instruments, and discloses an anastomotic stoma leakage-proof device. The anastomotic stoma leakage-proof device comprises an anastomat and a leakage-proof protection structure, the anastomat comprises an anastomat body, a nail abutting seat assembly and a percussion assembly, the nail abutting seat assembly is arranged at the front end of the anastomat body and can move relative to the anastomat body, the nail abutting seat assembly comprises a nail abutting seat and a pouch supporting piece, and the pouch supporting piece is arranged on the nail abutting seat; the nail abutting seat is provided with a nail abutting groove; the leakage-proof protection structure comprises a connecting part, a protection film and a traction part, the anastomat is sleeved with the connecting part and the protection film, when the anastomat moves into the intestinal tract, the first end of the connecting part can abut against the nail abutting base assembly, and the protection film is connected to the second end of the connecting part; the first end of the traction piece is fixed to the protective film, and the second end of the traction piece is detachably connected with the anastomat. The anastomotic stoma can be completely covered, leakage of the anastomotic stoma is avoided, and in addition, the anastomotic stoma is simple in structure and convenient to operate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to an anastomotic stoma leakage prevention device. BACKGROUND

[0002] An anastomat is a device used to connect two ends of the intestinal tract together in a gastrointestinal resection surgery. When anastomosis is performed, two segments of tissue are inlaid into the anastomat, and a circular anastomotic stoma is formed on the tissue after firing, thereby reconstructing the human body passage. However, some patients may still have anastomotic stoma fistula, anastomotic stoma bleeding, and anastomotic stoma stricture after surgery, which may require reoperation, increasing the economic and psychological burden on patients.

[0003] For example, after the two ends of the intestinal tract are anastomosed by the anastomat, under the peristalsis of the intestinal tract, the intestinal contents may come into contact with the anastomotic stoma, which may release the anastomotic stoma and leak from the gap of the anastomotic stoma to the outside of the intestinal tract, resulting in the occurrence of anastomotic stoma leakage. Therefore, there is an urgent need for an anastomotic stoma leakage prevention device to solve the above technical problems. SUMMARY

[0004] The present application aims to provide an anastomotic stoma leakage prevention device that can completely cover the anastomotic stoma to avoid the occurrence of anastomotic stoma leakage. In addition, the structure of the anastomotic stoma leakage prevention device is relatively simple and convenient to operate.

[0005] To achieve this purpose, the present application adopts the following technical solutions:

[0006] An anastomotic stoma leakage prevention device comprises:

[0007] An anastomat comprises a body, a staple seating assembly, and a firing assembly. The staple seating assembly is arranged at the front end of the body and can move relative to the body. The staple seating assembly comprises a staple seating and a purse support. The purse support is arranged on the staple seating. The staple seating is provided with a staple seating groove. The firing assembly is used to move the anastomat staples in the direction of the staple seating, and the anastomat staples can abut against the staple seating groove.

[0008] A leakage prevention protection structure comprises a connecting component, a protection film, and a traction member. The connecting component and the protection film are both sleeved on the outside of the anastomat. When the anastomat moves into the intestinal tract, the first end of the connecting component can abut against the staple seating assembly, so that the staple seating assembly can drive the connecting component to move into the intestinal tract. The protection film is connected to the second end of the connecting component. The first end of the traction member is fixed to the protection film, and the second end of the traction member is detachably connected to the anastomat.

[0009] In some possible implementation manners, the leakage-proof protection structure further comprises a pull wire, the protection film and the second end of the connecting component are stitched through the pull wire, and the protection film can be separated from the connecting component when the pull wire is pulled.

[0010] In some possible implementation manners, the connecting component comprises a blocking ring, the nail abutting seat is provided with a blocking groove, and the blocking ring can abut against the blocking groove.

[0011] In some possible implementation manners, the connecting component further comprises a connecting film and a connecting ring, the connecting film is fixedly connected to the blocking ring, the connecting ring is fixedly connected to the connecting film, and the connecting ring is connected to the protection film through the pull wire.

[0012] In some possible implementation manners, the blocking ring, the connecting film and the connecting ring are made of degradable materials.

[0013] In some possible implementation manners, the traction member is a traction wire.

[0014] In some possible implementation manners, the pulling end of the pull wire is stitched to the protection film through the traction member.

[0015] In some possible implementation manners, the nail abutting seat is provided with a connecting hole, and the traction member is detachably connected to the connecting hole.

[0016] In some possible implementation manners, an edge is arranged on the end of the protection film away from the connecting component.

[0017] In some possible implementation manners, the nail abutting grooves are five in number, the five nail abutting grooves are distributed at equal intervals in the circumferential direction of the nail abutting seat, and the anastomosis nails are arranged in one-to-one correspondence with the nail abutting grooves.

[0018] The present application has the following advantages:

[0019] The present application provides an anastomotic orifice leakage-proof device, which comprises an anastomat and a leakage-proof protection structure. The connecting component is sleeved on the nail abutting seat assembly, the first end of the connecting component can abut against the nail abutting seat assembly when the anastomat moves into the intestinal tract, the nail abutting seat assembly can drive the connecting component to move into the intestinal tract, the protection film is moved into the intestinal tract due to the connection between the protection film and the connecting component, the first end of the connecting component abuts against the nail abutting seat assembly, the connecting component is conveniently moved, and the nail abutting seat assembly is conveniently separated from the connecting component.

[0020] After the protective film is moved to the intestinal tract, the anvil seat assembly is moved away from the body of the device, so that the purse support is exposed from the body of the device, then a purse is punched at the intestinal tissue corresponding to the purse support, and the purse is tightened and the connecting component is tightly abutted against the outer wall of the purse support. Subsequently, the anthering needle is moved to the direction of the anvil seat through the firing assembly, so that the anthering needle passes through the connecting component and the purse and abuts against the anvil groove, thereby fixing the connecting component on the distal intestinal tract. Since the protective film is connected with the connecting component, the fixation of the protective film on the distal intestinal tract is realized. In this way, reliable fixation of the connecting component is realized, thereby realizing reliable fixation of the protective film. Fixing the protective film through the connecting component can avoid leakage of intestinal contents from the connection of the protective film.

[0021] After the protective film is fixed, the anvil seat assembly is moved towards the body of the device, and the anastomosis device is moved out of the intestinal tract, so that the anastomosis device is separated from the connecting component and the protective film, then the traction component is connected with the anvil seat, and the anastomosis device is continuously moved out. Since the first end of the traction component is fixed to the protective film, and the second end of the traction component is connected with the anastomosis device, during the movement of the anastomosis device outwards, the protective film is fully unfolded and reaches the proximal intestinal tract after passing through the anastomosis opening, so that the anastomosis opening is completely covered by the protective film, thereby avoiding the intestinal contents from unfastening the anastomosis opening and avoiding the occurrence of leakage of the anastomosis opening. In addition, the structure of the anastomosis opening leakage prevention device is relatively simple, and the operation is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural schematic diagram of the anastomosis opening leakage prevention device provided by the present application;

[0023] Figure 2 is a structural schematic diagram of the anvil seat assembly involved in the present application;

[0024] Figure 3 is a structural schematic diagram of the leakage prevention and protection structure involved in the present application;

[0025] Figure 4 is a structural schematic diagram of the intestinal tract involved in the present application;

[0026] Figure 5 is a schematic diagram of the anastomosis opening leakage prevention device of the present application passing through the diseased tissue to the distal intestinal tract;

[0027] Figure 6 is a schematic diagram of punching a purse at the intestinal tissue corresponding to the purse support;

[0028] Figure 7 is a schematic diagram of withdrawing the anastomosis device and only leaving the leakage prevention and protection structure;

[0029] Figure 8 is a schematic diagram of resecting the diseased tissue.

[0030] Figure 9 is a schematic view of the connection of the traction member with the connecting hole of the staple seat and the anastomosis of the distal intestine and the proximal intestine according to the present application;

[0031] Figure 10 is a schematic view of the protection film being unfolded according to the present application;

[0032] Figure 11 is a schematic view of the traction member being removed and the anastomosis being completely covered by the protection film according to the present application;

[0033] Figure 12 is a schematic view of the protection film being removed according to the present application.

[0034] In the drawings:

[0035] 1, stapler; 11, body; 12, staple seat assembly; 121, staple seat; 1211, blocking groove; 1212, connecting hole; 1213, staple blocking groove; 122, purse support; 123, clamping spring tube; 13, anastomosis nail; 14, fixed handle; 15, movable handle; 16, safety block; 17, adjusting nut;

[0036] 2, leakage-proof protection structure; 21, connecting component; 211, blocking ring; 212, connecting film; 213, connecting ring; 22, protection film; 221, hem; 23, traction member; 24, pull wire;

[0037] 100, intestine; 101, diseased tissue; 102, anastomosis. DETAILED DESCRIPTION

[0038] The present application will be further described below in conjunction with the drawings and examples. It should be understood that the specific examples described herein are intended to serve only for the purpose of explanation and are not intended to limit the present application in any manner. It should also be noted that, for the purpose of description, only the parts related to the present application are shown in the drawings rather than all the parts.

[0039] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature is "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature is "under", "below" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0041] In the description of the present embodiment, the terms "upper", "lower", "right", "left", and other orientation or position relationships are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0042] As shown in Figures 1 to 12 The present application provides an anastomotic stoma leakage prevention device, which comprises an anastomat 1 and a leakage prevention protection structure 2. The anastomat 1 comprises a body 11, a staple seat assembly 12 and a firing assembly, the staple seat assembly 12 is arranged at the front end of the body 11 and can move relative to the body 11, the staple seat assembly 12 comprises a staple seat 121 and a purse support 122, and the purse support 122 is arranged on the staple seat 121; the staple seat 121 is provided with a staple groove 1213, the firing assembly is used for moving the anastomat 1 in the direction of the staple seat 121, and the anastomat 13 can abut against the staple groove 1213. The leakage prevention protection structure 2 comprises a connecting component 21, a protection film 22 and a traction member 23, the connecting component 21 and the protection film 22 are both sleeved outside the anastomat 1, when the anastomat 1 moves into the intestinal tract 100, the first end of the connecting component 21 can abut against the staple seat assembly 12, so that the staple seat assembly 12 can drive the connecting component 21 to move into the intestinal tract 100, and the protection film 22 is connected to the second end of the connecting component 21; by arranging the protection film 22, the function of protecting the anastomotic stoma 102 is achieved, so that the intestinal contents are diverted to pass from the inside of the protection film 22. The first end of the traction member 23 is fixed to the protection film 22, and the second end of the traction member 23 is detachably connected with the anastomat 1. Optionally, in the present embodiment, the purse support 122 is a circular ring structure and is detachably connected with the staple seat 121.

[0043] By sleeving the connecting component 21 outside the staple seat assembly 12, as Figure 5As shown, when the stapler 1 moves into the intestine 100, the first end of the connecting member 21 can abut against the anvil assembly 12, allowing the anvil assembly 12 to drive the connecting member 21 into the intestine 100. Since the protective membrane 22 is connected to the connecting member 21, the protective membrane 22 is moved into the intestine 100. The abutment between the first end of the connecting member 21 and the anvil assembly 12 facilitates the movement of the connecting member 21 and also facilitates the disengagement of the anvil assembly 12 from the connecting member 21.

[0044] After the protective membrane 22 is moved to the intestine 100, as Figure 6 As shown, the anvil assembly 12 moves away from the body 11, causing the purse-string support 122 to protrude from the body 11. Then, a purse-string is applied to the intestinal tissue 100 corresponding to the purse-string support 122 via a purse-string line, and the purse is tightened, causing the connecting member 21 to abut against the outer wall of the purse-string support 122. The purse-string support 122 serves to limit the purse's position. Subsequently, as... Figure 7 As shown, the firing assembly moves the anastomosis staple 13 toward the anastomosis seat 121, causing the staple 13 to pass through the connecting member 21 and the purse-string liner and abut against the anastomosis groove 1213. This fixes the connecting member 21 onto the distal intestinal 100. Since the protective membrane 22 is connected to the connecting member 21, the protective membrane 22 is thus fixed in the distal intestinal 100. This configuration ensures reliable fixation of the connecting member 21, thereby ensuring reliable fixation of the protective membrane 22. Furthermore, fixing the protective membrane 22 through the connecting member 21 prevents direct connection between the protective membrane 22 and the anastomosis staple 13, thus avoiding leakage of intestinal contents from the connection point of the protective membrane 22.

[0045] After securing the protective film 22, as follows Figure 7 As shown, the anvil assembly 12 is moved closer to the device body 11, and the stapler 1 is moved outward from the intestine 100, causing the stapler 1 to detach from the connecting member 21 and the protective membrane 22, as shown. Figure 9 As shown, the traction member 23 is connected to the anvil seat 121, and the stapler 1 continues to move outward. Since the first end of the traction member 23 is fixed to the protective membrane 22, and the second end of the traction member 23 is connected to the stapler 1, during the outward movement of the stapler 1, as... Figure 10 As shown, the protective membrane 22 is fully expanded and passes through the anastomosis 102 to reach the proximal intestine 100, thus completely covering the anastomosis 102 with the protective membrane 22. Therefore, intestinal contents can be prevented from detaching from the anastomosis 102, avoiding anastomotic leakage. In addition, the anastomotic leakage prevention device has a simple structure and is easy to operate.

[0046] Optionally, in the embodiment, the protective film 22 is provided with a rolled edge 221 at the end away from the connecting component 21. The rolled edge 221 is a soft film structure and can be rolled outward. When the end of the protective film 22 is fixed to the distal intestine 100 through the connecting component 21 and is unfolded, the rolled edge 221 is rolled outward to abut against the inner wall of the proximal intestine 100 to prevent the protective film 22 from being retracted into the distal intestine 100.

[0047] Optionally, in the embodiment, the leakage-proof protection structure 2 further comprises a pull wire 24. The protective film 22 and the second end of the connecting component 21 are connected through the pull wire 24. When the pull wire 24 is pulled, the protective film 22 can be separated from the connecting component 21. After the protective film 22 is placed for a period of time, the protective film 22 is separated from the connecting component 21 through the pull wire 24. Thus, the protective film 22 is convenient to take out, and the discomfort of the patient can be reduced.

[0048] Optionally, in the embodiment, the connecting component 21 comprises a blocking ring 211, and the abutting seat 121 is provided with a blocking groove 1211. The blocking ring 211 can abut against the blocking groove 1211. The blocking ring 211 and the blocking groove 1211 abut against each other to increase the contact area between the connecting component 21 and the abutting seat 121. When the connecting component 21 and the protective film 22 are moved into the intestine 100, the connecting component 21 and the protective film 22 can be stably moved, and the connecting component 21 and the protective film 22 can be prevented from moving toward the instrument body 11 and being separated from the abutting seat 121. Optionally, the blocking groove 1211 is a stepped groove. In this way, the blocking groove 1211 is convenient to process.

[0049] Optionally, in the embodiment, the connecting component 21 further comprises a connecting film 212 and a connecting ring 213. The connecting film 212 is fixedly connected to the blocking ring 211, and the connecting ring 213 is fixedly connected to the connecting film 212. The connecting ring 213 is connected to the protective film 22 through the pull wire 24. The connecting film 212 is soft and elastic, and the abutting seat assembly 12 can pass through the inside of the connecting film 212 and the anastomosis needle 13. The connecting ring 213 is convenient to connect the pull wire 24.

[0050] Optionally, in the embodiment, the pulling end of the pull wire 24 is sewn to the protective film 22 through the traction member 23. The pulling end of the pull wire 24 is sewn to the protective film 22 to prevent the pull wire 24 from being pulled out by mistake. When the abutting seat 121 drives the traction member 23 to move outward, the traction member 23 is removed after the protective film 22 is completely unfolded. At this time, the pulling end of the pull wire 24 is free. The pulling end of the pull wire 24 is pulled to release the snap connection, and the protective film 22 is separated from the connecting component 21. Specifically, the pulling end of the pull wire 24 is sewn to the rolled edge 221 through the traction member 23.

[0051] Optionally, in the embodiment, the traction member 23 is a traction line. In this way, the structure is simple, and the parts are easy to obtain. Figure 9 As shown, optionally, in the embodiment, the nail abutting seat 121 is provided with a connecting hole 1212, and the traction member 23 is detachably connected with the connecting hole 1212. When the traction member 23 is connected with the nail abutting seat 121, the nail abutting seat 121 pulls the traction member 23 to move, and no other components interfere with the traction member 23, which facilitates the traction of the traction member 23 and facilitates the unfolding of the protective film 22. Specifically, the sharp part of the nail abutting seat 121 is provided with the connecting hole 1212. In this way, the traction is more convenient. In other embodiments, the traction member 23 can also be detachably connected with the device body 11, and the movement of the traction member 23 and the unfolding of the protective film 22 can be realized, which is not limited to the embodiment.

[0052] Optionally, in the embodiment, the blocking ring 211, the connecting film 212, and the connecting ring 213 are all made of degradable materials. After the protective film 22 is separated from the connecting ring 213 by pulling the pull line 24, as the anastomotic stoma 102 heals, since the blocking ring 211, the connecting film 212, and the connecting ring 213 are all made of degradable materials, the blocking ring 211, the connecting film 212, and the connecting ring 213 gradually degrade and break and can be discharged out of the body, which can reduce the foreign body sensation in the later period. Specifically, the blocking ring 211 is made of hard degradable material, which has high hardness and prevents the blocking ring 211 from being pulled out of the blocking groove 1211, so that the blocking ring 211 moves towards the device body 11. The connecting film 212 is made of soft degradable material, such as a bioabsorbable film, which facilitates the passage of the nail abutting seat assembly 12 from the inside. In the embodiment, the material of the protective film 22 is silicone, polytetrafluoroethylene, or TPU material, which has good leak-proof protection effect. In addition, the material of the anastomotic nail 13 is degradable, which can reduce the foreign body sensation in the later period. Specifically, the material of the anastomotic nail 13 is magnesium alloy.

[0053] Optionally, in the embodiment, the nail abutting groove 1213 is provided with five, and the five nail abutting grooves 1213 are distributed at equal intervals along the circumference of the nail abutting seat 121, and the anastomotic nails 13 are arranged one by one with the nail abutting grooves 1213. In this way, the number of the nail abutting grooves 1213 is less than that of the existing nail abutting seat 121, which does not affect the blood supply of the tissue after the anastomotic nails 13 pass through the connecting component 21 and the purse to fix the protective film 22, and can also ensure that the distal intestinal tract 100 and the proximal intestinal tract 100 are not pulled off after being anastomosed. In addition, the nail abutting grooves 1213 are distributed at equal intervals along the circumference of the nail abutting seat 121, so that the nail abutting grooves 1213 are uniformly distributed, which can disperse the force of the intestinal contents on the anastomotic stoma 102.

[0054] Optionally, the anastomat 1 further comprises a cutting assembly, after the lesion tissue 101 between the distal intestine 100 and the proximal intestine 100 is cut, the distal intestine 100 and the proximal intestine 100 need to be cut and anastomosed by the anastomat 1, the two end tissues are clamped and contained by the anvil assembly 12 and the body 11, the excess tissues contained in the distal intestine 100 and the proximal intestine 100 are cut by the cutting assembly when the distal intestine 100 and the proximal intestine 100 are anastomosed, and the anastomat 1 is moved to the direction of the anvil 121 by the firing assembly, so that the two end tissues contained are anastomosed. The cutting assembly is a mature technology in the related field, and this embodiment will not be described here.

[0055] In addition, the firing assembly comprises a fixed handle 14, a movable handle 15 and a safety block 16, in operation, the safety block 16 is first opened, then the movable handle 15 and the fixed handle 14 are gripped, the movable handle 15 is moved to be close to the fixed handle 14, and then the anastomat 13 is penetrated through the connecting component 21 and the purse and abuts against the anvil 121. The movable handle 15 drives the anastomat 13 to move through the first transmission structure, and the first transmission structure is a mature technology in the related field, and this embodiment will not be described here. In addition, the body 11 is provided with an adjusting nut 17 and a guide shaft, the adjusting nut 17 is in transmission connection with the guide shaft, the anvil assembly 12 further comprises a snap spring tube 123, the snap spring tube 123 is fixed to the anvil 121, the purse supporting piece 122 is annularly arranged outside the snap spring tube 123, and the snap spring tube 123 is inserted into the guide shaft. By rotating the adjusting nut 17, the guide shaft can be driven to move, and then the anvil 121 can be driven to extend or retract. The adjusting nut 17 drives the guide shaft to move through the second transmission structure, and the second transmission structure is a mature technology in the related field, and this embodiment will not be described here.

[0056] When the anastomotic leakage prevention device is used, as shown in Figure 5 and Figure 6 , first, the anastomotic leakage prevention device is moved to the distal intestine 100 beyond the lesion tissue 101, the adjusting nut 17 is rotated, the anvil assembly 12 is moved away from the body 11, the purse supporting piece 122 is exposed from the body 11, and at this time the connecting film 212 completely covers the purse supporting piece 122. Then, the purse is punched at the tissue of the intestine 100 corresponding to the purse supporting piece 122, and the purse is tightened and abutted against the outer wall of the purse supporting piece 122. Subsequently, as shown in Figure 7 , the anastomat 13 is moved to the direction of the anvil 121 by the firing assembly, so that the anastomat 13 is penetrated through the connecting component 21 and the purse and abutted against the anvil slot 1213.

[0057] Then, the anvil assembly 12 is moved to be close to the body 11, and the anastomat 1 is moved out of the intestine 100, so that the anastomat 1 is separated from the connecting component 21 and the protective film 22, and then the anastomat 1 is withdrawn and only the leakage prevention protection structure 2 is reserved. Then, as shown in Figure 8As shown, the lesion tissue 101 is cut off, and after the lesion tissue 101 is cut off, the distal intestine 100 and the proximal intestine 100 are subjected to a stapling operation. Figure 9 As shown, the traction member 23 is connected with the connecting hole 1212 of the nail abutment 121, and the distal intestine 100 and the proximal intestine 100 are subjected to a stapling operation.

[0058] After the stapling operation is completed, as shown, Figure 10 and Figure 11 The stapler 1 is moved out of the intestine 100, and when the protective film 22 is completely stretched, the traction member 23 is removed, at this time, the pull wire 24 is free, and the anastomotic stoma 102 is completely covered by the protective film 22, so that the intestinal contents are prevented from being discharged from the anastomotic stoma 102, and the occurrence of anastomotic leakage is avoided.

[0059] After the protective film 22 is placed for a period of time, because the protective film 22 and the second end of the connecting member 21 are connected through the pull wire 24, as shown, Figure 12 When the pull wire 24 is pulled, the snap connection is released, at this time, the connecting ring 213 is separated from the protective film 22, and then the protective film 22 is taken out. With the healing of the anastomotic stoma 102, the blocking ring 211, the connecting film 212 and the connecting ring 213 are gradually degraded and broken, and can be discharged out of the body, reducing the foreign body sensation in the later period.

[0060] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is not necessary and impossible to exhaust all the implementation modes. Any modification, equivalent substitution and improvement within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. An anastomotic leakage prevention device, characterized in that, The application relates to an anastomat (1) and a leakage-proof protection structure (2) thereof. The anastomat (1) comprises a body (11), a staple butt seat assembly (12) arranged at the front end of the body (11) and movable relative to the body (11), and a firing assembly, wherein the staple butt seat assembly (12) comprises a staple butt seat (121) and a purse support (122), the purse support (122) is arranged on the staple butt seat (121), the staple butt seat (121) is provided with a staple butt groove (1213), the firing assembly is used for moving anastomat staples (13) in the direction of the staple butt seat (121), and the anastomat staples (13) can abut against the staple butt groove (1213). The leakage-proof protection structure (2) comprises a connecting component (21), a protection film (22) and a traction member (23), the connecting component (21) and the protection film (22) are both sleeved on the anastomat (1), when the anastomat (1) moves into an intestinal tract (100), the first end of the connecting component (21) can abut against the staple butt seat assembly (12), so that the staple butt seat assembly (12) can drive the connecting component (21) to move into the intestinal tract (100), and the protection film (22) is connected to the second end of the connecting component (21); the first end of the traction member (23) is fixed to the protection film (22), and the second end of the traction member (23) is detachably connected to the anastomat (1).

2. The anastomotic leakage prevention device according to claim 1, wherein The leakage-proof protection structure (2) further comprises a pull line (24), the protection film (22) and the second end of the connecting component (21) are sutured by the pull line (24), when the pull line (24) is pulled, the protection film (22) can be separated from the connecting component (21).

3. The anastomotic leakage prevention device according to claim 2, wherein The connecting component (21) comprises a blocking ring (211), the staple butt seat (121) is provided with a blocking groove (1211), and the blocking ring (211) can abut against the blocking groove (1211).

4. The anastomotic leakage prevention device according to claim 3, characterized in that The connecting component (21) further comprises a connecting film (212) and a connecting ring (213), the connecting film (212) is fixedly connected to the blocking ring (211), the connecting ring (213) is fixedly connected to the connecting film (212), and the connecting ring (213) is connected to the protection film (22) through the pull line (24).

5. The anastomotic leakage prevention device according to claim 4, wherein The materials of the blocking ring (211), the connecting film (212) and the connecting ring (213) are all degradable materials.

6. The anastomotic leakage prevention device according to claim 2, wherein The traction member (23) is a traction line.

7. The anastomotic leakage prevention device according to claim 6, characterized in that The pulling end of the pull line (24) is sutured to the protection film (22) through the traction member (23).

8. The anastomotic leakage prevention device according to claim 6, wherein The staple butt seat (121) is provided with a connecting hole (1212), and the traction member (23) is detachably connected to the connecting hole (1212).

9. The anastomotic leakage prevention device according to any one of claims 1-8, characterized in that, One end of the protection film (22) away from the connecting component (21) is provided with a rolled edge (221).

10. The anastomotic leakage prevention device according to any one of claims 1-8, characterized in that, The staple butt groove (1213) is provided with five staple butt grooves (1213), the five staple butt grooves (1213) are distributed at equal intervals along the circumference of the staple butt seat (121), and the anastomat staples (13) are arranged in one-to-one correspondence with the staple butt grooves (1213).

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