Cutting knife of endoscope cutting anastomat

Abstract

The utility model relates to the technical field of medical cutting anastomats, and discloses a cutting knife of an endoscope cutting anastomat, which comprises an anastomat pushing plate and a pushing mounting block connected to the bottom end of the anastomat pushing plate, the bottom surface of the pushing mounting block is provided with a mounting hole, the bottom end of the pushing mounting block is provided with a connecting assembly, and the connecting assembly is connected with the anastomat pushing plate. The connecting assembly comprises a connecting block arranged on the bottom end face of the pushing mounting block, and a connecting rod is arranged in the connecting assembly. A tool apron is arranged at the bottom end of the connecting assembly, a connecting block and a connecting ring are arranged on the outer side of the connecting assembly, the connecting assembly is connected with the tool apron through the connecting block and the connecting ring, the connecting ring is connected to the outer side of the connecting block in a sleeving mode through a connecting groove, a tool bit is connected to the bottom end of the tool apron, and a blade is arranged in the tool bit. According to the cutting knife of the endoscope cutting anastomat, the cutting blade can be conveniently replaced, the knife body part is not additionally provided with a protruding connecting structure, friction abrasion of the outer surface of the knife body part is reduced, and the using effect is better.

Description

Technical Field

[0001] This utility model relates to the field of medical cutting and anastomosis technology, specifically a cutting blade for a laparoscopic cutting and anastomosis device. Background Technology

[0002] The laparoscopic stapler is one of the important instruments in laparoscopic surgery. It replaces traditional manual suturing and uses titanium staples to cut or anastomose tissue. The operation is simple and quick, which greatly shortens the operation time. The laparoscopic stapler makes the surgical field narrower, making it easier to anastomose deeper areas, and the operation is more accurate, firm and reliable. The cutting blade of the laparoscopic stapler is used to cut the tissue between the two staples.

[0003] However, most laparoscopic stapler cutters on the market still have some shortcomings in use. For example, the cutters of existing laparoscopic staplers are often connected to the stapler's pushing components by welding or other fixing methods. When the cutter wears or the edge deforms, it is not convenient to replace the blade. Moreover, the connecting parts of the blade body are mostly protruding, which makes them more prone to wear during operation, thus resulting in certain defects in use. Therefore, we propose a new cutter for laparoscopic staplers to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this utility model is to provide a cutting blade for a laparoscopic cutting anastomosis device, in order to solve the problems mentioned in the background art, where the cutting blade of the existing laparoscopic cutting anastomosis device is often connected to the anastomosis device pushing component by welding or other fixing methods, making it inconvenient to replace the blade when it is worn or the edge is deformed, and the blade body connection part is mostly protruding, making it more prone to wear during operation.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a cutting blade of a laparoscopic cutting stapler, comprising a stapler push plate and a push mounting block connected to the bottom end of the stapler push plate, wherein the bottom surface of the push mounting block is provided with a mounting hole, and the bottom end of the push mounting block is provided with a connecting component, wherein the connecting component includes a connecting block disposed on the bottom end surface of the push mounting block, and a connecting rod is disposed inside the connecting component;

[0006] The bottom end of the connecting component is provided with a tool holder, and the outer side of the connecting component is provided with a connecting block and a connecting ring. The connecting component is connected to the tool holder through the connecting block and the connecting ring. The bottom end of the tool holder is connected with a tool head, and the inside of the tool head is provided with a blade.

[0007] As a preferred embodiment of this utility model, the connecting component further includes a connecting hole and an inner recessed groove formed inside the connecting block, wherein the inner recessed groove is connected to the mounting hole through the connecting hole.

[0008] As a preferred embodiment of this utility model, the connecting assembly further includes a connecting groove formed on the outer surface of the connecting block, the connecting groove having an annular cross-section in the Z-axis direction, and the connecting rod being slidably connected to the inside of the connecting block through a connecting hole.

[0009] As a preferred embodiment of this utility model, the surface of the mounting hole is provided with an internal thread, the connecting rod is provided with an external thread, and the connecting rod is connected to the push mounting block through the mounting hole to form a threaded connection.

[0010] As a preferred embodiment of this utility model, a gasket is fitted onto the outer side of the connecting rod, and the gasket is disposed inside the connecting assembly.

[0011] As a preferred embodiment of this invention, the connecting ring is fitted onto the outside of the connecting block via a connecting groove.

[0012] As a preferred technical solution of this utility model, the connecting ring is fixedly connected to the tool holder through a connecting block, and two sets of connecting blocks are symmetrically arranged between the connecting ring and the tool holder.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the cutting blade of the laparoscopic cutting stapler solves the problem that the cutting blade of the existing laparoscopic cutting stapler is often connected to the stapler pushing part by welding or other fixed methods, which makes it inconvenient to replace the blade when the cutting blade is worn or the edge is deformed, and the blade body connection part is mostly protruding, which makes it more prone to wear during operation.

[0014] 1. By pushing the bottom of the mounting block to provide a connecting component, the connecting rod is threaded to the pushing mounting block through the mounting hole, which can press the connecting block against the lower end of the pushing mounting block. Since the connecting ring is fixedly connected to the tool holder through the connecting block, and the connecting ring is sleeved on the outside of the connecting component, the blade and tool holder can be quickly separated by removing the connecting ring from the outside of the connecting block, making the operation more convenient.

[0015] 2. The connecting groove on the outer surface of the connecting block is annular in the Z-axis direction. Since the connecting ring is connected to the outside of the connecting block through the connecting groove, the overall outer cylindrical circumference of the mounting block, connecting ring and tool holder is made flatter, without any extra protruding connecting parts, thus reducing the wear on the outer surface. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0018] Figure 3This is a schematic diagram of the overall structure of the connecting component and the connecting ring of this utility model in the connection state;

[0019] Figure 4 This is a schematic diagram of the overall structure of the connecting component of this utility model in cross-section.

[0020] In the diagram: 1. Anastomosis device push plate, 2. Push mounting block, 201. Mounting hole, 301. Connecting block, 302. Connecting hole, 303. Inner recess, 304. Connecting groove, 4. Connecting rod, 5. Gasket, 6. Blade holder, 7. Blade head, 8. Blade, 9. Connecting ring, 10. Connecting block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a cutting blade for a laparoscopic anastomosis device, including an anastomosis device push plate 1 and a push mounting block 2 connected to the bottom end of the push plate 1. The bottom surface of the push mounting block 2 has a mounting hole 201, and the surface of the mounting hole 201 has an internal thread. A connecting assembly is provided at the bottom end of the push mounting block 2. The connecting assembly includes a connecting block 301 disposed on the bottom end surface of the push mounting block 2, and further includes a connecting hole 302 and an inner groove 303 opened inside the connecting block 301. A connecting rod 4 is disposed inside the connecting assembly, and the connecting rod 4 is slidably connected to the inside of the connecting block 301 through the connecting hole 302. Specifically, as shown... Figure 1 and Figure 2 As shown, the inner recess 303 is connected to the mounting hole 201 through the connecting hole 302, and the connecting rod 4 is threadedly connected to the push mounting block 2 through the mounting hole 201, so that the connecting block 301 can be pressed against the lower end of the push mounting block 2;

[0023] Specific examples Figure 1 and Figure 2 As shown, a gasket 5 is provided inside the connecting assembly, and the gasket 5 fits onto the outside of the connecting rod 4. The gasket 5 prevents wear between the connecting rod 4 and the connecting 3. A tool holder 6 is provided at the bottom of the connecting assembly, and a tool head 7 is connected to the bottom of the tool holder 6. A blade 8 is provided inside the tool head 7, as detailed below. Figure 4 As shown, the connecting assembly also includes a connecting groove 304 formed on the outer surface of the connecting block 301, and the Z-axis cross section of the connecting groove 304 is arranged in annular shape;

[0024] Combination Figure 1 and Figure 3 As shown, the connecting ring 9 is fitted to the outside of the connecting block 301 through the connecting groove 304. The connecting ring 9 is fixedly connected to the tool holder 6 through the connecting block 10. Two sets of connecting blocks 10 are symmetrically arranged between the connecting ring 9 and the tool holder 6. The connecting block 10 and the connecting ring 9 connect the connecting assembly and the tool holder 6. The connecting ring 9 is made of silicone material and has a certain deformation capacity.

[0025] The working principle of this utility model is as follows: When using the cutting blade of this laparoscopic anastomosis device, firstly, the connecting assembly is connected to the bottom end of the push mounting block 2 via the connecting rod 4. The connecting rod 4 is threadedly connected to the mounting hole 201, so that the connecting rod 4 presses against the connecting block 301. Conversely, by rotating and separating the connecting rod 4 from the push mounting block 2, the connecting block 301 can be separated from the push mounting block 2. The connecting ring 9 is sleeved on the outside of the connecting block 301 through the connecting groove 304, so that the blade holder 6 can be connected to the connecting block 301. Conversely, by removing the connecting ring 9 from the connecting groove 304, the blade holder 6 and the connecting block 301 can be quickly separated, and the blade holder 6, the cutting head 7, and the blade 8 can be replaced.

[0026] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cutting blade of a laparoscopic stapler, comprising a stapler push plate (1) and a push mounting block (2) connected to the bottom end of the stapler push plate (1), characterized in that: The bottom surface of the push mounting block (2) is provided with a mounting hole (201), and the bottom end of the push mounting block (2) is provided with a connecting component. The connecting component includes a connecting block (301) provided on the bottom end surface of the push mounting block (2), and a connecting rod (4) is provided inside the connecting component. The bottom end of the connecting component is provided with a knife holder (6), and the outer side of the connecting component is provided with a connecting block (10) and a connecting ring (9). The connecting component is connected to the knife holder (6) through the connecting block (10) and the connecting ring (9). The bottom end of the knife holder (6) is connected with a knife head (7), and the inside of the knife head (7) is provided with a blade (8).

2. The cutting blade of the laparoscopic cutting anastomosis device according to claim 1, characterized in that: The connecting assembly also includes a connecting hole (302) and an inner recess (303) formed inside the connecting block (301), wherein the inner recess (303) is connected to the mounting hole (201) through the connecting hole (302).

3. The cutting blade of the laparoscopic cutting anastomosis device according to claim 2, characterized in that: The connecting assembly also includes a connecting groove (304) formed on the outer surface of the connecting block (301). The connecting groove (304) has an annular cross section in the Z-axis direction. The connecting rod (4) is slidably connected to the inside of the connecting block (301) through the connecting hole (302).

4. The cutting blade of a laparoscopic cutting anastomosis device according to claim 3, characterized in that: The mounting hole (201) has an internal thread on its surface, and the connecting rod (4) has an external thread. The connecting rod (4) is connected to the push mounting block (2) through the mounting hole (201) by a thread.

5. The cutting blade of a laparoscopic cutting anastomosis device according to claim 4, characterized in that: A gasket (5) is fitted onto the outer side of the connecting rod (4), and the gasket (5) is located inside the connecting assembly.

6. The cutting blade of a laparoscopic cutting anastomosis device according to claim 3, characterized in that: The connecting ring (9) is fitted onto the outside of the connecting block (301) through the connecting groove (304).

7. The cutting blade of a laparoscopic cutting anastomosis device according to claim 6, characterized in that: The connecting ring (9) is fixedly connected to the tool holder (6) through the connecting block (10), and two sets of connecting blocks (10) are symmetrically arranged between the connecting ring (9) and the tool holder (6).

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