Anastomotic device for conveniently fixing and releasing gasket

Abstract

The present invention discloses an anastomosis device that is convenient for fixing and releasing a gasket, and relates to the field of surgical staplers. The technical solution includes a stapler assembly, a stapler gasket, an anvil assembly, an anvil gasket, a cutting knife, and a nail-pushing slider; a limit rivet and a first limit retaining spring are respectively provided on the stapler assembly; a second limit retaining spring and a third limit retaining spring are respectively provided on the anvil assembly; the limit rivet and the first limit retaining spring respectively pass through the stapler gasket, and the second limit retaining spring and the third limit retaining spring respectively pass through the anvil gasket; the staple-pushing slider acts on the limit rivet and the first limit retaining spring in turn during the movement process to release the stapler gasket; the cutting knife acts on the second limit retaining spring and the third limit retaining spring in turn during the movement process to release the anvil gasket. The present invention can improve the positioning reliability and release smoothness of the gasket, and is easy to operate.

Description

Technical Field

[0001] The present invention relates to the field of surgical staplers, and more particularly to a stapler for facilitating the fixing and releasing of a gasket. Background Art

[0002] Stapler is a mechanical suturing device used in medicine to replace traditional manual suturing. Compared with traditional manual suturing technology, stapler has the advantages of less tissue reaction, neat arrangement of staples and equal spacing, and can effectively avoid the problems of manual suturing being too sparse or too dense, and ligation being too tight or too loose. At the same time, the mechanical suturing stapler is easy to operate and can shorten the operation time.

[0003] As the application scope of staplers continues to expand, the performance requirements for staplers are also getting higher and higher. In order to obtain a better anastomosis effect, a gasket is usually installed between the stapler and the tissue. The added gasket can cushion the patient's tissue, strengthen the tensile strength of the local tissue, improve the sealing performance of the anastomosis, prevent the occurrence of anastomotic leakage, reduce the cutting of tissues by staples, prevent the breakage and bleeding of the anastomosis, and balance the local pressure of the anastomosis, avoiding the occurrence of anastomotic fistula and stenosis caused by stress concentration and poor local blood circulation.

[0004] However, the current staplers equipped with gaskets still have problems such as unreliable gasket fixation and inability to release smoothly.

[0005] The existing Chinese patent with publication number CN109091183A discloses a surgical stapler device, which includes a staple magazine assembly, a staple anvil assembly, a drive assembly, a staple magazine gasket, anvil board gasket, a staple magazine magazine hook, anvil board hook, a first elastic fixing member and a second elastic fixing member; wherein the proximal end of the staple magazine gasket is fixed by the staple magazine magazine hook, and the distal end thereof is fixed by the first elastic fixing member; the proximal end of the anvil board gasket is fixed by the anvil board hook, and the distal end thereof is fixed by the second elastic fixing member; during the movement of the cutting knife, the staple magazine gasket and the anvil board gasket are cut and detached from the staple magazine magazine and the anvil board assembly respectively.

[0006] However, the surgical stapler device in the above patent still has the problem of inconvenient installation of the staple magazine gasket and the anvil gasket. Summary of the invention

[0007] In view of the deficiencies in the prior art, an object of the present invention is to provide an anastomosis device that is convenient for fixing and releasing a gasket, which can improve the positioning reliability and release smoothness of the gasket and is easy to operate.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] An anastomotic device for facilitating fixing and releasing a gasket, comprising:

[0010] A nail magazine assembly, wherein a nail magazine gasket is provided on the nail magazine assembly;

[0011] An anvil assembly, wherein an anvil gasket is provided on the anvil assembly;

[0012] A driving assembly, the driving assembly comprising a cutting knife and a nail-pushing slider;

[0013] The staple cartridge assembly is respectively provided with a limiting rivet for fixing the proximal end of the staple cartridge gasket, and a first limiting clamping spring for fixing the distal end of the staple cartridge gasket;

[0014] The anvil assembly is provided with a second limit spring for fixing the proximal end of the anvil gasket and a third limit spring for fixing the distal end of the anvil gasket;

[0015] Wherein, the limiting rivet and the first limiting clamp spring both pass through the nail magazine gasket respectively, and the second limiting clamp spring and the third limiting clamp spring both pass through the nail anvil gasket respectively;

[0016] The nail-pushing slider acts on the limiting rivet and the first limiting clamping spring in sequence during the movement to release the nail magazine gasket;

[0017] The cutting knife acts on the second limit clamping spring and the third limit clamping spring in sequence during the movement to release the anvil gasket.

[0018] Furthermore, the limiting rivet comprises a positioning column, a plurality of elastic arms are arranged on the positioning column, and a pressure plate is arranged on one end of the elastic arm away from the positioning column;

[0019] The nail magazine assembly is provided with a limiting hole that cooperates with the limiting rivet;

[0020] The positioning column is embedded into the limiting hole, and the limiting rivet is continuously pressed, so that the elastic arm can be contracted and embedded into the limiting hole, so that the staple cartridge gasket is clamped between the pressing plate and the staple cartridge assembly;

[0021] The nail-pushing slider can contact and lift the positioning column during its movement, so that the elastic arm pops out from the limiting hole, and the proximal end of the nail magazine gasket is released after the pressure plate is separated from the nail magazine gasket.

[0022] Furthermore, a notch is formed on one end of the positioning column away from the elastic arm.

[0023] Furthermore, a first snap-in opening cooperating with the limiting rivet is opened at the proximal end of the nail magazine gasket, and the first snap-in opening forms an opening at the proximal side edge of the nail magazine gasket.

[0024] Furthermore, the first limit clamping spring, the second limit clamping spring and the third limit clamping spring have the same structure, and the structure includes a first spring rod, the two ends of the first spring rod are respectively provided with a second spring rod, and the end of the second spring rod away from the first spring rod is provided with a third spring rod for fixing the gasket;

[0025] The two second spring rods are arranged crosswise, so that a release opening is formed between the first spring rod and the two second spring rods.

[0026] Furthermore, after the first limit clamping spring passes through the nail magazine gasket, the nail magazine gasket is clamped between the third spring rod and the nail magazine assembly;

[0027] The nail-pushing slider can move to be embedded in the release opening and expand it, so that the third spring rod is separated from the nail magazine gasket, and the two third spring rods are contracted, and the first limiting clamping spring is disengaged from the nail magazine gasket to achieve the release of the far end of the nail magazine gasket.

[0028] Furthermore, the pin-pushing slider is provided with a first opening portion that cooperates with the release opening.

[0029] Furthermore, after the second position-limiting clamping spring passes through the anvil gasket, the proximal end of the anvil gasket is clamped between the third spring rod of the second position-limiting clamping spring and the anvil assembly;

[0030] During the movement of the cutting knife, it is embedded in the release opening of the second limit spring and expands it, so that the third spring rod is separated from the anvil gasket, and the two third spring rods are contracted to form a gap between the ends. After the second limit spring is separated from the anvil gasket, the proximal end of the anvil gasket is released, and the cutting knife passes through the gap between the two third spring rods.

[0031] Furthermore, after the third position-limiting clamping spring passes through the anvil gasket, the distal end of the anvil gasket is clamped between the third spring rod of the third position-limiting clamping spring and the anvil assembly;

[0032] The cutting knife moves to be embedded in the release opening of the third limit spring and expands it, so that the third spring rod is separated from the anvil gasket, and the two third spring rods shrink, and the third limit spring is separated from the anvil gasket to realize the release of the far end of the anvil gasket.

[0033] Furthermore, the front end and the rear end of the cutting knife along the moving direction are respectively provided with second spreading parts cooperating with the second limit clamping spring.

[0034] In summary, the present invention has the following beneficial effects:

[0035] 1. The use of limit rivets and limit springs can not only improve the positioning reliability and release smoothness of the gasket, but also facilitate the operation and installation of the gasket;

[0036] 2. The limit rivet can fix and release the nail magazine gasket by relying on its own elastic structure without the need for additional elastic parts. It has the advantages of simple structure, low cost and easy installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the overall structure of an anastomotic device that is convenient for fixing and releasing a gasket in an embodiment;

[0038] Figure 2 It is a schematic diagram of the structure of the nail magazine assembly, the nail magazine gasket, the limiting rivet and the first limiting clip spring in the embodiment;

[0039] Figure 3 It is a structural schematic diagram of a nail magazine assembly in an embodiment;

[0040] Figure 4 It is a schematic diagram of the structure of the driving assembly, the staple cartridge gasket, the limiting rivet and the first limiting spring in the embodiment;

[0041] Figure 5 This is a schematic diagram of the structure of the limiting rivet in the embodiment;

[0042] Figure 6 This is a schematic diagram of the structure of the first limit spring in the embodiment;

[0043] Figure 7 It is a schematic diagram of the structure of the anvil assembly, the anvil gasket, the first limit clamp spring and the second limit clamp spring in the embodiment;

[0044] Figure 8 It is a schematic diagram of the structure of the cutting knife, the anvil gasket, the first limiting clamping spring and the second limiting clamping spring in the embodiment.

[0045] In the figure: 1. nail magazine assembly; 11. limiting hole; 2. nail anvil assembly; 3. cutting knife; 31. knife plate; 32. guide plate; 33. second opening part; 4. nail pushing slider; 41. first opening part; 5. nail magazine gasket; 51. first bayonet; 52. second bayonet; 6. nail anvil gasket; 61. third bayonet; 62. fourth bayonet; 7. limiting rivet; 71. positioning column; 72. notch; 73. elastic arm; 74. pressure plate; 81. first limiting retaining spring; 811. first spring rod; 812. second spring rod; 813. third spring rod; 814. release port; 82. second limiting retaining spring; 83. third limiting retaining spring. DETAILED DESCRIPTION

[0046] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0047] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

[0048] Example:

[0049] An anastomotic device for facilitating the fixing and release of a gasket, referring to Figures 1 to 8 , which includes a nail magazine assembly 1, a nail anvil assembly 2 and a driving assembly; wherein the nail magazine assembly 1 is provided with a nail magazine gasket 5, the nail anvil assembly 2 is provided with a nail anvil gasket 6, and the driving assembly includes a cutting knife 3 and a nail pushing slider 4; in this embodiment, the nail magazine assembly 1 is respectively provided with a limiting rivet 7 for fixing the proximal end of the nail magazine gasket 5, and a first limiting clamping spring 81 for fixing the distal end of the nail magazine gasket 5; the nail anvil assembly 2 is respectively provided with a second limiting clamping spring 82 for fixing the proximal end of the nail anvil gasket 6, and a third limiting clamping spring 83 for fixing the distal end of the nail anvil gasket 6; wherein the limiting rivet 7 and the first limiting clamping spring 81 are respectively passed through the nail The magazine gasket 5, the second limit retaining spring 82 and the third limit retaining spring 83 all pass through the anvil gasket 6 respectively; during the movement of the nail pushing slider 4, it acts on the limit rivet 7 and the first limit retaining spring 81 in turn to release the nail magazine gasket 5; during the movement of the cutting knife 3, it acts on the second limit retaining spring 82 and the third limit retaining spring 83 in turn to release the anvil gasket 6; in this embodiment, the limit rivet 7, the first limit retaining spring 81, the second limit retaining spring 82 and the third limit retaining spring 83 can, on the one hand, rely on elastic force to achieve compression and fixation of the gasket, and are easy to release; on the other hand, it is easy to install the gasket and is easy to operate.

[0050] Reference Figures 1 to 5Specifically, in this embodiment, the limiting rivet 7 includes a positioning column 71, a plurality of elastic arms 73 are provided on the positioning column 71, and a pressure plate 74 is provided on the end of the elastic arm 73 away from the positioning column 71; a limiting hole 11 cooperating with the limiting rivet 7 is opened on the nail magazine assembly 1; the positioning column 71 is embedded in the limiting hole 11, and the limiting rivet 7 is continuously pressed, so that the elastic arm 73 can be contracted and embedded in the limiting hole 11, so that the nail magazine gasket 5 is clamped between the pressure plate 74 and the nail magazine assembly 1, so as to fix the proximal end of the nail magazine gasket 5; the nail pushing slider 4 is located inside the nail magazine assembly 1, and can contact the positioning column 71 during the movement of the nail pushing slider 4 The rivet 7 is then pushed up by the elastic force generated by the contraction of the multiple elastic arms 73 to enable the limiting rivet 7 to be fixed relative to the nail magazine assembly 1, thereby ensuring the reliability of the fixation of the proximal end of the nail magazine gasket 5. At the same time, when the nail pushing slider 4 pushes up the limiting rivet 7, the elastic force released when the multiple elastic arms 73 are opened causes the limiting rivet 7 to bounce up quickly, thereby improving the smoothness of the release. After being pushed up, the limiting rivet 7 is no longer in contact with the nail pushing slider 4, so the nail pushing slider 4 can continue to move.

[0051] Reference Figures 2 to 5 , specifically, in this embodiment, a notch 72 is provided on the end of the positioning column 71 away from the elastic arm 73; in order to prevent the limiting rivet 7 from being separated from the limiting hole 11 when it pops up, preferably, the positioning column 71 and the limiting hole 11 are in contact and fit; the setting of the notch 72 allows the two pillars of the positioning column 71 to contract, thereby ensuring the smooth movement of the positioning column 71; of course, in other optional embodiments, a limiting structure can also be provided at the inner end of the positioning column 71 to prevent the limiting rivet 7 from being separated from the limiting hole 11, which is not limited here; specifically, in this embodiment, four elastic arms 73 are evenly distributed on the end of the positioning column 71, and the outer side wall of the elastic arm 73 is an arc surface, so that it can be smoothly embedded in the limiting hole 11 and improve the reliability of fixation; the limiting rivet 7 in this embodiment can achieve the fixation and release of the nail magazine gasket 5 by relying on its own elastic structure without the need for additional elastic parts, and has the advantages of simple structure, low cost and easy installation.

[0052] Reference Figures 2 to 5Specifically, in the present embodiment, two limiting rivets 7 are provided at the proximal end of the nail magazine assembly 1; the use of two limiting rivets 7 can improve the reliability of fixation on the one hand, and will not hinder the movement of the cutting knife 3 on the other hand; during the movement of the cutting knife 3, it passes through between the two limiting rivets 7; specifically, in the present embodiment, a first bayonet 51 cooperating with the limiting rivet 7 is provided at the proximal end of the nail magazine gasket 5, and the first bayonet 51 forms an opening at the proximal side of the nail magazine gasket 5; when the limiting rivet 7 is in the pop-up state, the first bayonet 51 of the nail magazine gasket 5 is opposite to the limiting rivet 7, and the limiting rivet 7 enters the first bayonet 51 during the movement of the nail magazine gasket 5. After the nail magazine gasket 5 is installed in place, the limiting rivet 7 is pressed down to fix the proximal end of the nail magazine gasket 5, which is easy to operate.

[0053] Reference Figures 2 to 8 Specifically, in this embodiment, the first limit clamping spring 81, the second limit clamping spring 82 and the third limit clamping spring 83 have the same structure and can be collectively referred to as limit clamping springs; the structure of the limit clamping spring includes a first spring rod 811, and the two ends of the first spring rod 811 are respectively provided with second spring rods 812, and the end of the second spring rod 812 away from the first spring rod 811 is provided with a third spring rod 813 for fixing the gasket; wherein, the two second spring rods 812 are arranged crosswise, so that a release port 814 is formed between the first spring rod 811 and the two second spring rods 812; in this embodiment, the first limit clamping spring 81, the second limit clamping spring 82 and the third limit clamping spring 83 have the same structure, but the lengths of the first spring rod 811, the second spring rod 812 and the third spring rod 813, the angle between the first spring rod 811 and the second spring rod 812, and the angle between the third spring rod 813 and the second spring rod 812 can be adjusted as needed, and are not limited here.

[0054] Reference Figures 2 to 6 In this embodiment, after the first limit spring 81 passes through the nail magazine gasket 5, the nail magazine gasket 5 is clamped between the third spring rod 813 and the nail magazine assembly 1; specifically, the first limit spring 81 is embedded in the nail magazine assembly 1, and the third spring rod 813 passes through the nail magazine assembly 1; in this embodiment, a second bayonet 52 cooperating with the first limit spring 81 is opened on the nail magazine gasket 5; when installing the nail magazine gasket 5, the first limit spring 81 is pressed so that the two third spring rods 813 are contracted to be able to pass through the second bayonet 52; after the first limit spring 81 passes through the second bayonet 52, the pressing of the first limit spring 81 is cancelled, and the two third spring rods 813 are reset to the open state, and the third spring rod 813 presses the nail magazine gasket 5 on the nail magazine assembly 1, thereby realizing the fixation of the distal end of the nail magazine gasket 5, which is simple to operate and can improve the reliability of the fixation; in this embodiment, the pressing and releasing of the first limit spring 18 can be assisted by tools, thereby making the operation more convenient.

[0055] Reference Figures 2 to 6Specifically, the nail pushing slider 4 can move to the embedded release opening 814 and expand it, so that the third spring rod 813 is separated from the nail magazine gasket 5, and the two third spring rods 813 are contracted, and the first limit spring 81 is separated from the nail magazine gasket 5 to realize the release of the far end of the nail magazine gasket 5; specifically, the two third spring rods 813 are contracted to be able to pass through the second bayonet 52, and in this embodiment, the nail pushing slider 4 is embedded in the release opening 814 and does not return, then the nail magazine gasket 5 can be smoothly separated from the first limit spring 81 and attached to the tissue by the nail, thereby improving the smoothness of the release; preferably, the front end of the nail pushing slider 4 in the moving direction is protruded and provided with a first support portion 41 cooperating with the release opening 814, so that timely release can be achieved.

[0056] Reference Figure 6 and Figure 7 Specifically, in this embodiment, the second limit spring 82 is embedded in the proximal end of the anvil assembly 2, and the third spring rod 813 of the second limit spring 82 passes through the anvil assembly 2; the third limit spring 83 is embedded in the distal end of the anvil assembly 2, and the third spring rod 813 of the third limit spring 83 passes through the anvil assembly 2; the anvil gasket 6 is respectively provided with a third bayonet 61 that cooperates with the second limit spring 82, and a fourth bayonet 62 that cooperates with the third limit spring 83.

[0057] Reference Figure 6 and Figure 7 Specifically, when installing the anvil gasket 6, the second limit spring 82 is pressed, so that the two third spring rods 813 are contracted to the point where they can pass through the third bayonet 61; after the second limit spring 82 passes through the third bayonet 61, the pressing on the second limit spring 82 is canceled, and the two third spring rods 813 are reset to the open state, and the third spring rod 813 presses the anvil gasket 6 against the anvil assembly 2, thereby fixing the proximal end of the anvil assembly 2. The operation is simple and the reliability of the fixation can be improved. Similarly, the distal end of the anvil assembly 2 is fixed by the third limit spring 83.

[0058] Reference Figure 1 ,as well as Figures 6 to 8In the present embodiment, during the movement of the cutting knife 3, it is first embedded in the release opening 814 of the second limit clamping spring 82 and expands it, so that the third spring rod 813 is separated from the anvil gasket 6, and the two third spring rods 813 are contracted to form a gap between the ends and can pass through the third clamping opening 61; after the second limit clamping spring 82 is separated from the anvil gasket 6, the proximal end of the anvil gasket 6 is released, and the cutting knife 3 passes through the gap between the two third spring rods 813 to ensure the smooth movement of the cutting knife 3; the cutting knife 3 continues to move until it is embedded in the third limit clamping spring 83 The third spring rod 813 is inserted into the release opening 814 and expands it, so that the third spring rod 813 is separated from the anvil gasket 6, and the two third spring rods 813 are contracted to be able to pass through the fourth bayonet 62, and the third limiting clamping spring 83 is separated from the anvil gasket 6 to realize the release of the far end of the anvil gasket 6; specifically, in this embodiment, when the anvil gasket 6 is nailed to the tissue, the second limiting clamping spring 82 and the third limiting clamping spring 83 respectively cancel the limitation on the anvil gasket 6, thereby improving the smoothness of the release and ensuring that the anvil gasket 6 can be smoothly nailed to the tissue.

[0059] Reference Figure 1 and 8 In this embodiment, the cutting knife 3 includes a knife plate 31, and guide plates 32 are respectively provided at both ends of the knife plate 31; one of the guide plates 32 is embedded in the nail magazine assembly 1, and the other guide plate 32 is embedded in the nail anvil assembly 2, so that the cutting knife 3 can drive the nail magazine assembly 1 and the nail anvil assembly 2 to close during movement; in this embodiment, the front end and the rear end of the cutting knife 3 along the moving direction are respectively provided with a second opening portion 33 that cooperates with the second limit clamping spring 82, and of course, the second opening portion 33 can also cooperate with the third limit clamping spring 83; specifically, the guide plate 32 of the cutting knife 3 located in the nail anvil assembly 2, and its front and rear ends are respectively extended to form the second opening portion 33, and the lengths of the two second opening portions 33 can be adjusted as needed; during the forward movement of the cutting knife 3, the second opening portion 33 at the front end acts on the second limit clamping spring 82 and the third limit clamping spring 83 in sequence, and during the backward movement of the cutting knife 3, the second opening portion 33 at the rear end acts on the second limit clamping spring 82, so that the cutting knife 3 can pass through the second limit clamping spring 82 to achieve reset.

Claims

1. An anastomotic device for facilitating fixing and releasing a gasket, comprising: A nail magazine assembly, wherein a nail magazine gasket is provided on the nail magazine assembly; An anvil assembly, wherein an anvil gasket is provided on the anvil assembly; A driving assembly, the driving assembly comprising a cutting knife and a nail-pushing slider; Features: The staple cartridge assembly is respectively provided with a limiting rivet for fixing the proximal end of the staple cartridge gasket, and a first limiting clamping spring for fixing the distal end of the staple cartridge gasket; The anvil assembly is provided with a second limit spring for fixing the proximal end of the anvil gasket and a third limit spring for fixing the distal end of the anvil gasket; Wherein, the limiting rivet and the first limiting clamp spring both pass through the nail magazine gasket respectively, and the second limiting clamp spring and the third limiting clamp spring both pass through the nail anvil gasket respectively; The nail-pushing slider acts on the limiting rivet and the first limiting clamping spring in sequence during the movement to release the nail magazine gasket; The cutting knife acts on the second limit clamping spring and the third limit clamping spring in sequence during the movement to release the anvil gasket; The first limit clamping spring, the second limit clamping spring and the third limit clamping spring have the same structure, and the structure includes a first spring rod, the two ends of the first spring rod are respectively provided with a second spring rod, and the end of the second spring rod away from the first spring rod is provided with a third spring rod for fixing the gasket; Wherein, the two second spring rods are arranged crosswise, so that a release opening is formed between the first spring rod and the two second spring rods; After the first limit clamping spring passes through the nail magazine gasket, the nail magazine gasket is clamped between the third spring rod and the nail magazine assembly; The nail-pushing slider can move to be embedded in the release opening and expand it, so that the third spring rod is separated from the nail magazine gasket, and the two third spring rods are contracted, and the first limit clamping spring is separated from the nail magazine gasket to realize the release of the distal end of the nail magazine gasket; After the second position-limiting clamping spring passes through the anvil gasket, the proximal end of the anvil gasket is clamped between the third spring rod of the second position-limiting clamping spring and the anvil assembly; During the movement of the cutting knife, the cutting knife is embedded in the release opening of the second limit spring and expands it, so that the third spring rod is separated from the anvil gasket, and the two third spring rods are contracted to form a gap between the ends. After the second limit spring is separated from the anvil gasket, the proximal end of the anvil gasket is released, and the cutting knife passes through the gap between the two third spring rods; After the third position-limiting clamping spring passes through the anvil gasket, the distal end of the anvil gasket is clamped between the third spring rod of the third position-limiting clamping spring and the anvil assembly; The cutting knife moves to be embedded in the release opening of the third limit spring and expands it, so that the third spring rod is separated from the anvil gasket, and the two third spring rods are contracted, and the third limit spring is separated from the anvil gasket to realize the release of the far end of the anvil gasket; The pin-pushing slider is provided with a first opening portion that cooperates with the release opening of the first limit clamping spring; The front end and the rear end of the cutting knife along the moving direction are respectively provided with a second opening portion cooperating with the second position-limiting clamping spring, and the second opening portion can also cooperate with the third position-limiting clamping spring.

2. The anastomotic device for facilitating the fixing and releasing of a gasket according to claim 1, characterized in that: The limiting rivet comprises a positioning column, a plurality of elastic arms are arranged on the positioning column, and a pressing plate is arranged on one end of the elastic arm away from the positioning column; The nail magazine assembly is provided with a limiting hole that cooperates with the limiting rivet; The positioning column is embedded into the limiting hole, and the limiting rivet is continuously pressed, so that the elastic arm can be contracted and embedded into the limiting hole, so that the staple cartridge gasket is clamped between the pressing plate and the staple cartridge assembly; The nail-pushing slider can contact and lift the positioning column during its movement, so that the elastic arm pops out from the limiting hole, and the proximal end of the nail magazine gasket is released after the pressure plate is separated from the nail magazine gasket.

3. The anastomotic device for facilitating the fixing and releasing of a gasket according to claim 2, characterized in that: A notch is formed on one end of the positioning column away from the elastic arm.

4. The anastomotic device for facilitating the fixing and releasing of a gasket according to claim 2, characterized in that: A first bayonet that cooperates with the limiting rivet is formed at the proximal end of the staple cartridge gasket, and the first bayonet forms an opening at the proximal side of the staple cartridge gasket.

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