Antiskid nail anvil of endoscope anastomat
By designing a combination structure of multiple rectangular array grooves, convex strips, rubber plates and anti-slip edges on the anti-slip anvil of the laminoscope stapler, the problem that the existing laminoscope stapler is prone to slip when clamping thicker tissue is solved, and good anti-slip effect and clamping force are achieved.
Patent Information
- Application Number
- CN202421738163.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-07-22
AI Technical Summary
The existing laminoscopic stapler is prone to slipping when clamping thicker tissue because the head is inclined, the clamping force is small, and the anti-slip design is not designed, which makes it easy to slip when clamping thicker tissue.
A laminoscope stapler anti-slip stapler anvil is designed, using the outer wall of the main body of the nail anvil to open a groove distributed in a rectangular array, and two sets of convex strips and rubber plates are fixed to each other. Multiple anti-slip edges are fixed on the rubber plate. The anti-slip edges extend to the outside of the metal plate through the installation holes and form an angle of 70-80 degrees with the head of the nail anvil.
It effectively improves the anti-slip effect of the nail anvil, avoids tissue slippage, and enhances the clamping force when clamping thicker tissue, and has a good use effect.
Smart Images
Figure CN223009186U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of laparoscopic staplers, in particular to an anti-slip anvil of a laparoscopic stapler. Background Technique
[0002] With the development of science and technology and the progress of the times, medical devices are becoming more and more advanced. A stapler is a device used in medicine to replace manual suturing. Its main working principle is to use titanium staples to sever or anastomose tissues, similar to a stapler. According to different application scopes, it can be mainly divided into skin staplers, circular staplers, rectal staplers, laparoscopic staplers, vascular staplers, lung cutting and suturing devices, etc.;
[0003] As a kind of surgical instrument, a laparoscopic stapler is a device used in medicine to replace manual suturing; the working principle of the stapler is to clamp the stapler at the lesion site for resection. While resection is being performed, the lesion is severed or anastomosed with tissues using titanium staples, similar to a stapler;
[0004] However, for the existing laparoscopic stapler in the prior art, due to the consideration that its head is of an inclined plane structure and has a small clamping force, anti-slip design at the head cannot achieve an ideal effect. Therefore, generally, the head of the anvil surface wall is not provided with an anti-slip design. This results in that when clamping thicker tissues, the tissues are prone to slip after forming compression, and other instruments need to be used to limit the tissues. At the same time, relying solely on the grooves on the surface of the anvil body for anti-slip, the anti-slip effect is average. Content of the Utility Model
[0005] The purpose of the utility model is to provide an anti-slip anvil of a laparoscopic stapler, which has the characteristics of good anti-slip effect, avoiding tissue shedding, and good use effect.
[0006] To achieve the above purpose, the utility model provides the following technical scheme: an anti-slip anvil of a laparoscopic stapler, including an anvil body, one side of the anvil body is provided with an anvil head, a plurality of grooves distributed in a rectangular array are opened on the outer wall of the anvil body, two groups of convex strips are fixedly connected to the outer wall of the anvil body, the two groups of convex strips are distributed left and right and one is arranged between every three rows of grooves, a rubber plate is fixedly connected to the outer wall of the anvil body, a plurality of anti-slip edges are fixedly connected to the outer wall of the rubber plate, a metal plate is fixedly connected to the outer wall of the rubber plate, a plurality of mounting holes are opened on the outer wall of the metal plate, and the plurality of anti-slip edges respectively extend to the outside of the metal plate through the plurality of mounting holes.
[0007] In order to avoid tissue slippage, as a preferred anti-slip anvil of a laparoscopic stapler of the utility model, the included angle between the two anti-slip edges and the anvil head is 70-80 degrees.
[0008] In order to improve the connection strength of the anti-slip ridges, as an optimization of the anti-slip anvil of the endoscopic stapler of the present utility model, the rubber plate and the anti-slip ridges are of an integral structure.
[0009] In order to improve the anti-slip effect, as an optimization of the anti-slip anvil of the endoscopic stapler of the present utility model, the raised strips are made of rubber or plastic.
[0010] In order to reduce tissue compression damage, as an optimization of the anti-slip anvil of the endoscopic stapler of the present utility model, the cross-section of the anvil body is in an arc structure and is thicker in the middle and thinner at both sides.
[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0012] A plurality of grooves distributed in a rectangular array are formed on the outer wall of the anvil body for limiting and forming the sewing nails, and at the same time, a good anti-slip effect can be achieved. Two groups of raised strips are fixedly connected to the outer wall of the anvil body. The raised strips are convex and made of rubber or plastic to improve the anti-slip property of the outer wall of the anvil body. The raised strips are arranged relatively sparsely, which can play a good anti-slip role without causing compression and damage to the tissue. A plurality of anti-slip ridges are fixedly connected to the outer wall of the rubber plate. The anti-slip ridges improve the friction force of the outer wall of the anvil head, and the anti-slip effect is good. Therefore, when clamping thicker tissue, a strong clamping force can still be maintained, avoiding tissue slippage. The rubber plate and the anti-slip ridges are of an integral structure, with high connection strength, avoiding the anti-slip ridges from falling off, and the surface is limited and fixed by a metal plate;
[0013] The included angle between the two anti-slip ridges and the anvil head is 70-80 degrees. With such a structure, when the endoscopic stapler extends towards the tissue, its direction is consistent with the inclination direction of the anti-slip ridges, so the operation is smoother and the tissue will not be damaged. When pulling the tissue, the direction is opposite to the inclination direction of the anti-slip ridges, which can play a role of hooking and avoid tissue shedding, and the use effect is good. Description of the Drawings
[0014] Figure 1 It is a side view structure diagram of the whole of the present utility model;
[0015] Figure 2 It is a front view structure diagram of the whole of the present utility model;
[0016] Figure 3 It is an enlarged structure diagram of the anvil head of the present utility model;
[0017] Figure 4 It is a cross-sectional structure diagram of the whole of the present utility model.
[0018] In the figure: 1, anvil body; 2, anvil head; 3, groove; 4, raised strip; 5, rubber plate; 6, anti-slip ridge; 7, metal plate; 8, mounting hole. Detailed Embodiment
[0019] Please refer to Figures 1 to 4 , a non-slip anvil for a laparoscopic stapler, which includes an anvil body 1. One side of the anvil body 1 is provided with an anvil head 2. A plurality of grooves 3 distributed in a rectangular array are formed on the outer wall of the anvil body 1. Two groups of convex strips 4 are fixedly connected to the outer wall of the anvil body 1. The two groups of convex strips 4 are distributed left and right, and one is arranged between every three rows of grooves 3. A rubber plate 5 is fixedly connected to the outer wall of the anvil body 1. A plurality of anti-slip ridges 6 are fixedly connected to the outer wall of the rubber plate 5. A metal plate 7 is fixedly connected to the outer wall of the rubber plate 5. A plurality of mounting holes 8 are formed on the outer wall of the metal plate 7. The plurality of anti-slip ridges 6 respectively extend to the outside of the metal plate 7 through the plurality of mounting holes 8.
[0020] In this embodiment: A plurality of grooves 3 distributed in a rectangular array are formed on the outer wall of the anvil body 1 for limiting and forming the suture nails, and at the same time, it can achieve a good anti-slip effect. Two groups of convex strips 4 are fixedly connected to the outer wall of the anvil body 1. The convex strips 4 are convex and made of rubber or plastic to improve the anti-slip property of the outer wall of the anvil body 1. The convex strips 4 are arranged relatively sparsely, which will not cause compression and damage to the tissue while achieving a good anti-slip effect. A plurality of anti-slip ridges 6 are fixedly connected to the outer wall of the rubber plate 5. The anti-slip ridges 6 improve the friction force on the outer wall of the anvil head 2, and the anti-slip effect is good. Thus, when clamping a relatively thick tissue, a strong clamping force can still be maintained to avoid tissue slippage. The rubber plate 5 and the anti-slip ridges 6 are of an integral structure, with high connection strength, avoiding the anti-slip ridges 6 from falling off, and the surface is limited and fixed by a metal plate 7.
[0021] As a technical optimization scheme of the present utility model, the included angle between two anti-slip ridges 6 and the anvil head 2 is 70 - 80 degrees.
[0022] In this embodiment: The included angle between two anti-slip ridges 6 and the anvil head 2 is 70 - 80 degrees. In this structure, when the laparoscopic stapler extends towards the tissue, its direction is the same as the inclination direction of the anti-slip ridges 6, so the operation is smoother and the tissue will not be damaged. When pulling the tissue, it is opposite to the inclination direction of the anti-slip ridges 6, which can play a role of hooking and avoid tissue shedding, and the use effect is good.
[0023] As a technical optimization scheme of the present utility model, the rubber plate 5 and the anti-slip ridges 6 are of an integral structure.
[0024] In this embodiment: The rubber plate 5 and the anti-slip ridges 6 are of an integral structure, with high connection strength, avoiding the anti-slip ridges 6 from falling off, and the surface is limited and fixed by a metal plate 7.
[0025] As a technical optimization scheme of the present utility model, the convex strips 4 are made of rubber or plastic.
[0026] In this embodiment: The convex strips 4 are made of rubber or plastic to improve the anti-slip property of the outer wall of the anvil body 1.
[0027] As a technical optimization solution of the present utility model, the cross-section of the anvil main body 1 is in an arc structure and is thicker in the middle and thinner at both sides.
[0028] In this embodiment: The cross-section of the anvil main body 1 is in an arc structure and is thicker in the middle and thinner at both sides. When cooperating with the staple cartridge, the distance between the two ends is larger, so that tissue squeezing damage can be effectively reduced when clamping the tissue.
[0029] Working principle: A plurality of grooves 3 distributed in a rectangular array are formed on the outer wall of the anvil main body 1 for limiting and forming the suture nails, and at the same time, a good anti-slip effect can be achieved. Two groups of convex strips 4 are fixedly connected to the outer wall of the anvil main body 1. The convex strips 4 protrude and are made of rubber or plastic to improve the anti-slip property of the outer wall of the anvil main body 1. The convex strips 4 are arranged relatively sparsely, which will not cause compression and damage to the tissue while achieving a good anti-slip effect. A plurality of anti-slip ridges 6 are fixedly connected to the outer wall of the rubber plate 5. The anti-slip ridges 6 improve the friction force of the outer wall of the anvil head 2, and the anti-slip effect is good. Therefore, when clamping thicker tissue, a strong clamping force can still be maintained to prevent the tissue from slipping. The rubber plate 5 and the anti-slip ridges 6 are of an integral structure, with high connection strength to prevent the anti-slip ridges 6 from falling off, and the surface is limited and fixed by a metal plate 7.
[0030] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.
Claims
1. A non-slip anvil for a laparoscopic stapler, comprising an anvil body (1), characterized in that: A nail anvil head (2) is provided on one side of the nail anvil body (1); a plurality of grooves (3) distributed in a rectangular array are provided on the outer wall of the nail anvil body (1); two groups of convex strips (4) are fixedly connected to the outer wall of the nail anvil body (1); the two groups of convex strips (4) are distributed on the left and right and one is provided between every three rows of grooves (3); a rubber plate (5) is fixedly connected to the outer wall of the nail anvil body (1); a plurality of anti-slip edges (6) are fixedly connected to the outer wall of the rubber plate (5); a metal plate (7) is fixedly connected to the outer wall of the metal plate (7); a plurality of mounting holes (8) are provided on the outer wall of the metal plate (7); and the plurality of anti-slip edges (6) extend to the outer side of the metal plate (7) through the plurality of mounting holes (8) respectively.
2. The anti-slip nail anvil of a laparoscopic stapler according to claim 1, characterized in that: The angle between the two anti-slip edges (6) and the anvil head (2) is 70-80 degrees.
3. The anti-slip nail anvil of a laparoscopic stapler according to claim 1, characterized in that: The rubber plate (5) and the anti-slip edge (6) are an integrated structure.
4. The anti-slip nail anvil of a laparoscopic stapler according to claim 1, characterized in that: The convex strip (4) is made of rubber or plastic.
5. The anti-slip nail anvil of a laparoscopic stapler according to claim 1, characterized in that: The cross section of the anvil body (1) is an arc-shaped structure and is thicker in the middle and thinner at both sides.