Puncture stitching instrument with good stability

Abstract

The utility model discloses a puncture stitching instrument with good stability, which belongs to the technical field of medical instruments and comprises a rod body, a push block is assembled in the rod body in a sliding manner, an inner gear is rotatably mounted in the rod body, a connecting rod is fixedly connected to the peripheral surface of the inner gear, and the connecting rod is fixedly connected with the push block. One end of the outer side of the connecting rod is fixedly connected to one side of the push block, four rotating shafts which are circumferentially and uniformly distributed at equal intervals are rotatably mounted in the rod body, outer gears fixedly sleeve the peripheral surfaces of the rotating shafts, four directional rods which are circumferentially and uniformly distributed at equal intervals are arranged on the inner wall of the rod body, and rack plates are slidably assembled on the peripheral surfaces of the directional rods; one end of each rack plate is fixedly connected with an arc-shaped plate, the four outer gears are all meshed with the inner gears, the outer gears are meshed with the corresponding rack plates respectively, and the effects of improving the stability of the operation and fixing more conveniently are achieved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a puncture and suturing device with good stability. Background Technology

[0002] Currently, a puncture suture device is a medical device consisting of a puncture cannula, a puncture device, and a suture hook device. It is mainly used for puncture and suturing of deep fascia, playing a particularly important role in laparoscopic surgery. Chinese patent CN219147798U specifically discloses an inflatable puncture suture device with an anti-leakage structure. This patent, through the design of an internal airbag and medical-grade silicone material, effectively improves the stability and airtightness during surgery, preventing the puncture suture device from falling off and leaking air. However, after fixing the rod and removing the puncture device, this patent cannot better adapt to various types of suture hook devices. If some thinner suture devices are used for puncture, they cannot better follow the direction of the rod for suturing, which may cause errors and complications during the operation, resulting in poor stability.

[0003] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0004] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a puncture suture device with good stability, so as to improve the stability of the operation and make fixation more convenient.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a puncture and suturing device with good stability, including a rod body, a push block slidably assembled inside the rod body, an internal gear rotatably installed inside the rod body, a connecting rod fixedly connected to the outer circumferential surface of the internal gear, and one outer end of the connecting rod fixedly connected to one side of the push block;

[0006] The rod body has four circumferentially evenly distributed rotating shafts inside, and external gears are fixedly sleeved on the outer circumferential surface of each rotating shaft. The inner wall of the rod body has four circumferentially evenly distributed directional rods, and rack plates are slidably mounted on the outer circumferential surface of each directional rod. An arc-shaped plate is fixedly connected to one end of each rack plate. The four external gears mesh with the internal gears, and the external gears mesh with the corresponding rack plates.

[0007] Furthermore, a push rod and a locking block are slidably assembled inside the push block, with one end of the push rod fixedly connected to the top of the locking block.

[0008] Furthermore, the rod body is provided with an arc-shaped groove corresponding to the push block, and the inner wall of the arc-shaped groove is provided with a number of equally spaced locking holes.

[0009] Furthermore, the push block has a slot corresponding to the card block, and a return spring is fixedly connected between the inner walls of the card block and the card slot.

[0010] Furthermore, the rod body has a through groove inside, a middle tube inside the through groove, a puncture end on the middle tube, an air port on the outer circumference of the rod body, and an air injection switch on the air port.

[0011] Furthermore, the outer circumferential surface of the rod is provided with anti-slip texture, and several raised strips are fixedly connected to the outer circumferential surface of the push block.

[0012] The beneficial effects of this application are as follows: by using the internal gear to drive the external gear to rotate, and through the design of mechanical structures such as the rack plate, arc plate, locking block and locking hole, more precise and stable control of the puncture suturing device is achieved. This design not only enables the suturing device to move stably along the direction of the rod, but also enhances the overall stability through the restriction of the locking block and locking hole, preventing the suturing device from shifting during the operation. The design of raised strips and anti-slip textures makes it easier and more stable for medical staff to operate the puncture suturing device. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This utility model Figure 1 Enlarged view of section A (marked with Chinese character A);

[0016] Figure 3 This is a schematic diagram of the internal and external gears of this utility model;

[0017] Figure 4 This utility model Figure 3 Enlarged view of section B (Chinese character symbol B).

[0018] In the diagram: 1. Rod body; 2. Anti-slip texture; 3. Push block; 4. Internal gear; 5. Connecting rod; 6. Rotating shaft; 7. External gear; 8. Rack plate; 9. Directional rod; 10. Arc plate; 11. Locking block; 12. Push rod; 13. Return spring; 14. Raised strip; 15. Locking hole; 16. Intermediate tube; 17. Air port. Detailed Implementation

[0019] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0020] like Figure 1-4 As shown, this application provides a puncture suture device with good stability, including a rod body 1. A push block 3 is slidably assembled inside the rod body 1. An internal gear 4 is rotatably installed inside the rod body 1. A connecting rod 5 is fixedly connected to the outer circumferential surface of the internal gear 4. One end of the connecting rod 5 is fixedly connected to one side of the push block 3. Four circumferentially evenly distributed rotating shafts 6 are rotatably installed inside the rod body 1. External gears 7 are fixedly sleeved on the outer circumferential surface of each rotating shaft 6. Four circumferentially evenly distributed directional rods 9 are provided on the inner wall of the rod body 1. A rack plate 8 is slidably assembled on the outer circumferential surface of each directional rod 9. An arc plate 10 is fixedly connected to one end of the rack plate 8. All four external gears 7 mesh with the internal gears 4, and the external gears 7 mesh with the corresponding rack plates 8.

[0021] like Figure 1-4 As shown, push rod 12 and locking block 11 are slidably assembled inside push block 3, and one end of push rod 12 is fixedly connected to the top of locking block 11.

[0022] like Figure 1-2 As shown, the rod body 1 has an arc-shaped groove corresponding to the push block 3, and the inner wall of the arc-shaped groove has several equally spaced locking holes 15.

[0023] like Figure 1-4 As shown, the push block 3 has a slot corresponding to the card block 11, and a return spring 13 is fixedly connected between the inner wall of the card block 11 and the card slot.

[0024] like Figure 1 As shown, the rod body 1 has a through groove inside, and a middle tube 16 is provided inside the through groove. The middle tube 16 has a puncture end. An air port 17 is installed on the outer circumferential surface of the rod body 1, and an air injection switch is provided on the air port 17.

[0025] like Figure 1-2 As shown, anti-slip texture 2 is provided on the outer circumferential surface of the rod 1, and several raised strips 14 are fixedly connected to the outer circumferential surface of the push block 3.

[0026] The working principle of this utility model is as follows: The rod body 1 and the intermediate tube 16 are inserted into the human body along the puncture end. Then the intermediate tube 16 is pulled out and the push block 3 is pushed. The connecting rod 5 drives the internal gear 4 to rotate, which in turn drives the external gear 7 to rotate. The external gear 7 drives the internal gear 4 to rotate, and the internal gear 4 drives the rack plate 8 to move. Restricted by the directional rod 9, the rack plate 8 drives the arc plate 10 to move horizontally towards the center position. Then the suturing device passes through the center position of the arc plate 10 and moves along the rod body 1 to perform the suturing operation. This makes the suturing device move in the same direction at the same angle, avoiding its shaking from affecting the accuracy of the suturing operation.

[0027] Furthermore, the protruding strip 14 and anti-slip texture 2 make it easier for medical staff to push the push block 3 and more stably pick up the rod 1, push the push rod 12, and drive the locking block 11 to move upward, so that the locking block 11 is no longer stuck inside the locking hole 15, and then push the push block 3. After releasing the push rod 12, the reset spring 13 resets and drives the locking block 11 to reset and lock into the locking hole 15, ensuring the stability of the push block 3, thereby ensuring the stability of the arc plate 10, and ensuring that the surgery is more stable and more accurate.

[0028] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A puncture suture device with high stability, characterized by, Includes a rod body (1), a push block (3) is slidably assembled inside the rod body (1), an internal gear (4) is rotatably installed inside the rod body (1), a connecting rod (5) is fixedly connected to the outer circumferential surface of the internal gear (4), and one end of the connecting rod (5) is fixedly connected to one side of the push block (3). The rod body (1) is internally mounted with four circumferentially equidistant rotating shafts (6). External gears (7) are fixedly fitted on the outer circumferential surface of each rotating shaft (6). Four circumferentially equidistant directional rods (9) are provided on the inner wall of the rod body (1). A rack plate (8) is slidably mounted on the outer circumferential surface of each directional rod (9). An arc plate (10) is fixedly connected to one end of the rack plate (8). The four external gears (7) mesh with the internal gears (4). The external gears (7) mesh with the corresponding rack plates (8).

2. The puncture suture device according to claim 1, wherein: The push block (3) is equipped with a push rod (12) and a locking block (11) that slide inside it respectively, and one end of the push rod (12) is fixedly connected to the top of the locking block (11).

3. The puncture suture device according to claim 1, wherein: The rod (1) has an arc-shaped groove corresponding to the push block (3), and the inner wall of the arc-shaped groove has a number of equally spaced card holes (15).

4. The puncture suture device according to claim 2, wherein: The push block (3) has a slot corresponding to the card block (11), and a return spring (13) is fixedly connected between the inner wall of the card block (11) and the card slot.

5. The puncture suture device according to claim 1, wherein: The rod (1) has a through groove inside, and a middle tube (16) is provided inside the through groove. A puncture end is provided on the middle tube (16). An air port (17) is installed on the outer circumferential surface of the rod (1). An air injection switch is provided on the air port (17).

6. The puncture suture device according to claim 1, wherein: The outer circumferential surface of the rod (1) is provided with anti-slip texture (2), and a number of protruding strips (14) are fixedly connected to the outer circumferential surface of the push block (3).

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