Olecranon-shaped nail anvil of endoscope anastomat assembly

Abstract

The utility model relates to the field of medical apparatus and instruments, and discloses an olecranon-shaped nail anvil of an endoscope anastomat component, which comprises a rotating sleeve, a nail cutting board is inserted at the top end of the rotating sleeve, a nail anvil head is inserted at the right end of the nail cutting board, a sliding chute is arranged at the bottom end of the nail cutting board, a fixing mechanism is arranged on the inner wall of the sliding chute, and the fixing mechanism is connected with the rotating sleeve. And the fixing mechanism comprises a fixing assembly and an unlocking assembly, the fixing assembly comprises a fixing sleeve, the fixing sleeve slides on the inner wall of the sliding groove, the front end of the fixing sleeve is slidably connected with a fixing plate, the rear end of the fixing plate is provided with fixing teeth, and the inner wall of the fixing plate is fixedly connected with a fixing spring. According to the nail anvil, the fixing assembly is arranged, the tooth groove can be driven to be meshed with the fixing teeth by inserting the inserting block into the right end of the nail anvil plate, in this way, the nail anvil head can be fixed, the nail anvil head can be detached by adjusting the unlocking assembly during replacement, and the whole device is convenient to replace.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to an eagle-beak shaped anvil for an endoscopic anastomosis device assembly. Background Technology

[0002] The laparoscopic stapler is a medical device mainly used in minimally invasive surgery. It mainly consists of two parts: the stapler assembly and the drive assembly. The stapler assembly mainly includes a staple cartridge, a staple box, and an anvil. The anvil is mainly used to assist in fixing the bending of the staples. The anvil head is usually provided at the front end of the anvil. Common anvil heads include beak heads, teardrop heads, and round heads. Each type of anvil head has a different purpose. The beak head is tilted at the front end, which can be used to assist the device in entering the patient's body.

[0003] When using a stapler, it is necessary to select different types of anvil heads according to different surgical locations, and also to change to different shapes of eagle beak heads according to different patient incisions. Since the anvil head and the anvil plate are generally connected by bolts, special tools are required for disassembly, and the whole device is inconvenient to replace. Therefore, an eagle beak-shaped anvil for a laparoscopic stapler assembly is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an eagle-beak shaped anvil for a laparoscopic anastomosis device assembly, which aims to improve the problem in the prior art that "the existing anvil head and anvil plate are generally fixed with bolts, and special tools are required for replacement, which is inconvenient".

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a beak-shaped anvil for a laparoscopic anastomosis device assembly, comprising a rotating sleeve, an anvil plate inserted into the top of the rotating sleeve, an anvil head inserted into the right end of the anvil plate, a sliding groove at the bottom of the anvil plate, a fixing mechanism provided on the inner wall of the sliding groove, the fixing mechanism comprising a fixing component and an unlocking component, the fixing component comprising a fixing sleeve, the fixing sleeve sliding on the inner wall of the sliding groove, a fixing plate slidably connected to the front end of the fixing sleeve, a fixing tooth provided at the rear end of the fixing plate, a fixing spring fixedly connected to the inner wall of the fixing plate, the rear end of the fixing spring fixedly connected to the front end of the fixing sleeve, an insert block fixedly connected to the left end of the anvil head, the insert block being inserted into the right end of the sliding groove, and a toothed groove provided at the front end of the sliding groove.

[0006] As a further description of the above technical solution:

[0007] The unlocking component includes a slide plate, which is slidably connected to the inner wall of the slide groove, and the right end of the slide plate is fixedly connected to the left end of the fixing sleeve.

[0008] As a further description of the above technical solution:

[0009] A lever is installed at the bottom of the slide plate, and the lever is slidably connected to the bottom of the rotating sleeve.

[0010] As a further description of the above technical solution:

[0011] A return spring is fixedly connected to the left end of the slide plate, and the left end of the return spring is fixedly connected to the left end of the inner wall of the slide groove.

[0012] As a further description of the above technical solution:

[0013] A locking block is fixedly connected to the inner wall of the slide near the front end of the fixed sleeve, and the locking block is inserted into the inner wall of the fixed sleeve.

[0014] As a further description of the above technical solution:

[0015] The front end of the skateboard is provided with a sliding groove, and the fixing sleeve slides on the inner wall of the sliding groove.

[0016] As a further description of the above technical solution:

[0017] The fixed teeth are configured in a sawtooth shape, which is compatible with the tooth groove.

[0018] As a further description of the above technical solution:

[0019] The right end of the anvil head is curved.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, by setting a fixing component, inserting the plug into the right end of the nail anvil can drive the tooth groove to engage with the fixing tooth, thus fixing the nail anvil head. When replacing, the nail anvil head can be disassembled by adjusting the unlocking component. The overall device is relatively easy to replace.

[0022] 2. In this utility model, by setting a locking block, when the locking block is inserted into the inside of the fixing sleeve, the fixing plate will be fixed and cannot move forward. In this way, the fixing teeth will not be able to disengage from the tooth groove, and the insert block will not be able to separate from the nail anvil. This ensures a high degree of stability in the connection between the nail anvil head and the nail anvil. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;

[0024] Figure 2 This is a three-dimensional structural breakdown diagram of the rotating sleeve and nail cutting board in this utility model;

[0025] Figure 3This is a three-dimensional structural disassembly diagram of the fixing mechanism in this utility model;

[0026] Figure 4 This is a three-dimensional cross-sectional diagram of the fixing mechanism in this utility model.

[0027] Legend:

[0028] 1. Rotating sleeve; 2. Nail cutting board; 21. Slide groove; 3. Nail cutting head; 31. Insert block; 4. Fixing mechanism; 41. Pulley; 42. Return spring; 43. Slide plate; 44. Fixing plate; 45. Fixing sleeve; 46. Fixing tooth; 47. Tooth groove; 48. Fixing spring; 49. Locking block; 410. Slide groove. Detailed Implementation

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of a beak-shaped anvil for a laparoscopic anastomosis device assembly, including a rotating sleeve 1 for rotating an anvil plate 2. An anvil plate 2, used to compress and deform a fixation pin, is inserted into the top of the rotating sleeve 1. An anvil head 3, used to facilitate the passage of a pin plate through an incision on the patient's skin surface, is inserted into the right end of the anvil plate 2. A groove 21, used to accommodate a fixation mechanism 4, is provided at the bottom of the anvil plate 2. The inner wall of the groove 21 is provided with a fixation mechanism 4 for fixing the anvil head 3. The fixation mechanism 4 includes a fixing component for fixing the anvil head 3 and an unlocking component for releasing the fixation of the anvil head 3. The fixing component includes a fixing sleeve 45 for supporting the sliding of a fixation plate 44. The fixing sleeve 45 slides within the groove 21. The inner wall of the fixed sleeve 45 can slide left and right on the inner wall of the slide groove 21. The front end of the fixed sleeve 45 is slidably connected to a fixed plate 44 for moving the fixed tooth 46. The fixed plate 44 can slide back and forth on the inner wall of the fixed sleeve 45. The rear end of the fixed plate 44 is provided with a fixed tooth 46 for fixing the insert 31. The inner wall of the fixed plate 44 is fixedly connected to a fixed spring 48 for pulling the fixed plate 44. The rear end of the fixed spring 48 is fixedly connected to the front end of the fixed sleeve 45. The fixed spring 48 will pull the fixed plate 44 at all times. The left end of the nail anvil 3 is fixedly connected to an insert 31 for fixing the nail anvil 3. The insert 31 is inserted into the right end of the slide groove 21. The front end of the slide groove 21 is provided with a tooth groove 47 for accommodating the fixed tooth 46.

[0031] Reference Figure 2 - Figure 4 The unlocking component includes a slide plate 43 for moving the fixed sleeve 45. The slide plate 43 is slidably connected to the inner wall of the slide groove 21. The slide plate 43 can only slide left and right on the inner wall of the slide groove 21. The right end of the slide plate 43 is fixedly connected to the left end of the fixed sleeve 45. When the slide plate 43 slides left and right, it will drive the fixed sleeve 45 to slide left and right synchronously. The bottom end of the slide plate 43 is equipped with a lever 41 for the operator to move the slide plate 43. The lever 41 passes through and is slidably connected to the bottom end of the rotating sleeve 1. When installing the lever 41, the nail anvil 2 can be inserted into the inside of the rotating sleeve 1 first, and then the lever 41 can be installed at the bottom end of the slide plate 43 from the bottom. The lever 41 and the slide plate 43 are installed with bolts. The left end of the slide plate 43 is fixedly connected to a return spring 42 for pulling the slide plate 43. The left end of the return spring 42 is fixedly connected to the left end of the inner wall of the slide groove 21. The return spring 42 will pull the slide plate 43 to the left at all times.

[0032] Reference Figure 2 - Figure 4 The inner wall of the slide 21 is fixedly connected to the front end of the fixed sleeve 45 with a locking block 49 for fixing the fixed plate 44. The locking block 49 is inserted into the inner wall of the fixed sleeve 45. When the locking block 49 is inserted into the inside of the fixed sleeve 45, the fixed plate 44 will be blocked and cannot move forward. The front end of the slide plate 43 is provided with a sliding groove 410 for accommodating the locking block 49. The fixed sleeve 45 slides on the inner wall of the sliding groove 410. When the slide plate 43 moves left and right, the locking block 49 will move inside the sliding groove 410. The fixing tooth 46 is set in a sawtooth shape. When the inclined surface of the fixing tooth 46 is squeezed, the fixing tooth 46 will be forced to move forward, so that the fixing tooth 46 and the tooth groove 47 are matched. When the left end of the insert 31 is completely attached to the inner wall of the fixed sleeve 45, the fixing tooth 46 will be completely engaged with the tooth groove 47. The right end of the nail anvil head 3 is set in an arc shape.

[0033] Working principle: When it is necessary to replace the anvil head 3, the lever 41 can be turned to the right to move the slide plate 43 to the right. The movement of the slide plate 43 to the right will cause the fixing sleeve 45 to move to the right. Since the locking block 49 does not move, the locking block 49 will be forced to leave the inside of the fixing sleeve 45. At this time, the fixing plate 44 will be unobstructed and can move back and forth. Then, the anvil head 3 can be pulled outward to move the insertion block 31 to the right. The insertion block 31 will squeeze the fixing teeth 46 through the tooth groove 47, causing the fixing plate 44 to move forward. After the anvil head 3 is separated from the anvil plate 2, the anvil head 3 that meets the size requirements can be installed according to the instructions. Insert the insert 31 into the nail anvil 2 along the original path. As the insert 31 enters the nail anvil 2, it will also press the fixing teeth 46 to move it forward. When the insert 31 is fully inserted, the fixing spring 48 will pull the fixing plate 44 to move it forward, causing the fixing teeth 46 to fit into the tooth groove 47. Then the release plate 41 can be released. The return spring 42 will pull the slide plate 43 to move it to the left. The slide plate 43 moving to the left will pull the fixing sleeve 45, causing the fixing plate 44 to move to the left and reset. At the same time, the fixing plate 44 will pull the insert 31 to insert it into the slide groove 21. In this way, the replacement of the nail anvil head 3 can be completed.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is 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 beak-shaped anvil for a laparoscopic anastomosis device assembly, comprising a rotating sleeve (1), characterized in that: A nail anvil (2) is inserted into the top of the rotating sleeve (1), and a nail anvil head (3) is inserted into the right end of the nail anvil (2). A groove (21) is provided at the bottom end of the nail anvil (2), and a fixing mechanism (4) is provided on the inner wall of the groove (21). The fixing mechanism (4) includes a fixing component and an unlocking component. The fixing component includes a fixing sleeve (45), which slides on the inner wall of the groove (21). The front of the fixing sleeve (45) A fixed plate (44) is slidably connected to the end of the fixed plate (44), and a fixed tooth (46) is provided at the rear end of the fixed plate (44). A fixed spring (48) is fixedly connected to the inner wall of the fixed plate (44), and the rear end of the fixed spring (48) is fixedly connected to the front end of the fixed sleeve (45). A plug (31) is fixedly connected to the left end of the nail anvil (3), and the plug (31) is inserted into the right end of the slide groove (21). A toothed groove (47) is provided at the front end of the slide groove (21).

2. The beak-shaped anvil of a laparoscopic anastomosis device assembly according to claim 1, characterized in that: The unlocking component includes a slide plate (43), which is slidably connected to the inner wall of the slide groove (21), and the right end of the slide plate (43) is fixedly connected to the left end of the fixing sleeve (45).

3. The beak-shaped anvil of a laparoscopic anastomosis device assembly according to claim 2, characterized in that: A lever (41) is installed at the bottom end of the slide plate (43), and the lever (41) passes through and is slidably connected to the bottom end of the rotating sleeve (1).

4. The beak-shaped anvil of a laparoscopic anastomosis device assembly according to claim 2, characterized in that: A return spring (42) is fixedly connected to the left end of the slide plate (43), and the left end of the return spring (42) is fixedly connected to the left end of the inner wall of the slide groove (21).

5. The beak-shaped anvil of a laparoscopic anastomosis device assembly according to claim 4, characterized in that: A locking block (49) is fixedly connected to the inner wall of the slide (21) near the front end of the fixed sleeve (45), and the locking block (49) is inserted into the inner wall of the fixed sleeve (45).

6. The beak-shaped anvil of a laparoscopic anastomosis device assembly according to claim 5, characterized in that: The front end of the slide plate (43) is provided with a sliding groove (410), and the fixing sleeve (45) slides on the inner wall of the sliding groove (410).

7. The beak-shaped anvil of a laparoscopic anastomosis device assembly according to claim 1, characterized in that: The fixed tooth (46) is configured as a sawtooth shape, which is adapted to the tooth groove (47).

8. The beak-shaped anvil of a laparoscopic anastomosis device assembly according to claim 1, characterized in that: The right end of the anvil head (3) is set in an arc shape.

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