Push rod anti-falling mechanism of clip applier

Abstract

The utility model provides a push rod anti-dropping mechanism of a clip applier, which relates to the technical field of clip appliers, and comprises a push rod body, a clip body is arranged on one side of the push rod body, one end of the clip body is fixedly connected with a cylinder body, one side of the clip body is fixedly connected with a handle body, and the handle body is fixedly connected with the cylinder body. A holding rod is rotationally connected to one side of the clamp body, a first spring is arranged at the top end of the holding rod, the two ends of the first spring are fixedly connected with one side of the top end of the holding rod and one side of the inner wall of the barrel, an anti-disengaging assembly is arranged at the end, away from the clamp body, of the push rod body, and a positioning assembly is arranged at the top end of the clamp body. By arranging the anti-disengaging assembly, the L-shaped block is pressed at the top end of the clamp body in the storage and transportation process, the angle between the groove block and the clamp body and the angle between the push rod body and the clamp body are limited, and the situation that the push rod body accidentally rotates, so that the protruding block is clamped into the rectangular groove, and the push rod body slides out of the clamp body is avoided as much as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of clip applicators, in particular to an anti - detachment mechanism for the push rod of a clip applicator. Background Art

[0002] A clip applicator is a common surgical instrument, mainly used for grasping, fixing and controlling tissues, blood vessels and other structures for surgical operations. When using a clip applicator, the movement of the push rod is controlled by adjusting the handle to push the ligating clip inside the clip applicator to the jaws, and the ligating clip is closed and clamped on the tissue by the jaws.

[0003] Using a detachable clip applicator can facilitate the comprehensive disinfection and cleaning of the internal structure of the clip applicator. However, for the detachable push rod in the clip applicator, during transportation or storage, the push rod and other structures of the clip applicator are prone to accidental separation due to external force shaking or impact, thus affecting the normal use of the clip applicator. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problem that the detachable push rod in the clip applicator is prone to accidental separation from other structures of the clip applicator due to external force shaking or impact during transportation or storage, thus affecting the normal use of the clip applicator, and to propose an anti - detachment mechanism for the push rod of a clip applicator.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: an anti - detachment mechanism for the push rod of a clip applicator, including a push rod body, on one side of the push rod body there is a jaw body, one end of the jaw body is fixedly connected with a cylinder body, the push rod slides on the inner wall of the cylinder body, on one side of the jaw body there is a handle body fixedly connected, on one side of the jaw body there is a grip rod rotatably connected, at the top of the grip rod there is a first spring, and both ends of the first spring are fixedly connected with one side of the top of the grip rod and one side of the inner wall of the cylinder body. An anti - detachment component is arranged at one end of the push rod body away from the jaw body, and a positioning component is arranged at the top of the jaw body.

[0006] The effects achieved by the above components are as follows: When using the clip applicator, the grip rod is pushed to rotate to compress the first spring, so that the push rod body slides on the inner wall of the cylinder body to push the ligating clip inside the cylinder body to the jaws. When the grip rod is released, the first spring will return to its original state and push the grip rod and the push rod body back to their original positions. The anti - detachment component can prevent the push rod body from falling off when using the clip applicator.

[0007] Preferably, the anti-slip assembly includes two protrusions, which are respectively fixedly connected to two sides of the push rod body, and rectangular grooves are provided at the top end of the inner wall of the grip rod and the top end of the inner wall of the clamp body. One end of the push rod body is fixedly connected to a groove block, and the inner wall of the groove block is slidably connected to an L-shaped block. A second spring is provided inside the groove block, and the upper and lower ends of the second spring are respectively fixedly connected to one side of the bottom end of the L-shaped block and the bottom end of the inner wall of the groove block.

[0008] The effect achieved by the above components is: by setting the anti-slip assembly, when the clamp is used normally, the L-shaped block is pulled to slide upward on the inner wall of the groove block and the second spring is stretched, and then the groove block is pushed to control the push rod body to rotate so that the protrusions on both sides of the push rod body are perpendicular to the rectangular groove inside the grip clamp body, and the groove block and the rectangular groove are parallel to each other; the L-shaped block is released and the L-shaped block is pulled by the second spring to slide downward on the inner wall of the groove block to press one side of the L-shaped block on the top of the clamp body; when the push rod body is controlled to move by the grip rod, one side of the L-shaped block will slide on the top of the clamp body When the push rod body needs to be taken out, pull the L-shaped block away from the clamp body and then push the slot block to rotate so that the slot block and the rectangular slot are perpendicular to each other. At this time, the convex block and the rectangular slot are parallel to each other. Pull the slot block so that the convex block on the outer surface of the push rod body passes through the rectangular slot at the top of the grip rod and the rectangular slot at the top of the clamp body and slides outward to take out the push rod body. During storage and transportation, the L-shaped block is used to limit the angle between the slot block, the push rod body and the clamp body to avoid accidental rotation of the push rod body, which may cause the convex block to be stuck in the rectangular slot and the push rod body to slide out from the inside of the clamp body.

[0009] Preferably, two grooves are provided on a side of the outer surface of the push rod body close to the groove block, and convex strips are fixedly connected to the inner walls of the grooves.

[0010] The effect achieved by the above components is that when the push rod body is inside the clamp body, the relative position of the protrusion on the outer surface of the push rod body and the rectangular groove at the top of the grip can be more accurately determined by observing the angle between the protrusion at the groove and the clamp body.

[0011] Preferably, a plurality of rectangular bars are fixedly connected to one side of the L-shaped block, and the rectangular bars are linearly distributed on the outer surface of the L-shaped block.

[0012] The effect achieved by the above components is: pinching the rectangular groove on the outer surface of the L-shaped block and pulling the L-shaped block can increase the friction when the hand contacts the outer surface of the L-shaped block, making it more convenient to pull the L-shaped block and less likely to slip.

[0013] Preferably, a round rod is fixedly connected to the bottom end of the L-shaped block, the outer surface of the round rod slides on the inner wall of the groove block, and the round rod is located inside the second spring.

[0014] The effect achieved by the above-mentioned components is that when the L-shaped block moves up and down on the inner wall of the groove block, the round rod will slide on the inner wall of the groove block and move inside the second spring. The round rod can limit and reinforce the angle between the L-shaped block and the groove block and the internal shape of the second spring, thereby avoiding as much as possible the deviation of the angle between the L-shaped block and the groove block and the lateral deformation of the second spring.

[0015] Preferably, a fastening assembly is provided on one side of the slot block to further fix the position of the L-shaped block, and the fastening assembly includes a screw, one end of which is fixedly connected to one side of the L-shaped block, and the outer surface of the screw is threadedly connected to a threaded ring, and a sliding groove is provided on one side of the slot block, and the outer surface of the screw slides on the inner wall of the sliding groove.

[0016] The effect achieved by the above components is: when the L-shaped block is pulled to slide on the inner wall of the groove block, the screw will slide on the inner wall of the slide groove. By clamping the L-shaped block at the top of the clamp body to prevent the push rod body from falling off, the threaded ring on the outer surface of the screw can be rotated to make the threaded ring move on the outer surface of the screw in the direction of the groove block, and one side of the threaded ring is pressed against one side of the groove block, which further fixes the position of the L-shaped block and improves the effect of the anti-slip assembly.

[0017] Preferably, a positioning assembly is provided at the top of the clamp body, and the positioning assembly includes a U-shaped rod, both ends of the U-shaped rod are rotatably connected to both sides of the top of the clamp body, a rubber belt is provided on one side of the U-shaped rod, and a slot is opened on one side of the top of the L-shaped block.

[0018] The effect achieved by the above-mentioned components is that when the clamping pliers are transported, the L-shaped block of the anti-slip assembly is stuck at the top of the clamp body to prevent the push rod body from falling off, so that the U-shaped rod can be pushed to rotate at the top of the clamp body, one end of the U-shaped rod is pressed against one side of the L-shaped block, and then the rubber belt is pulled to deform and the rubber belt is stuck in the slot at the top of the L-shaped block, thereby further fixing the position of the L-shaped block at the top of the clamp body, and avoiding as much as possible the clamping pliers from being hit or shaken during transportation, which may cause the L-shaped block to rotate accidentally and affect the anti-slip effect of the anti-slip assembly on the push rod body.

[0019] Compared with the prior art, the advantages and positive effects of the utility model are:

[0020] In the utility model, an anti-slip assembly is provided, and an L-shaped block is pressed on the top of the clamp body during storage and transportation to limit the angle between the slot block and the push rod body and the clamp body, thereby avoiding as much as possible the push rod body from accidentally rotating, causing the protrusion to be stuck in the rectangular slot and the push rod body to slide out of the inside of the clamp body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2 This is a schematic perspective view of a partial cross-section of the handle body of the present utility model;

[0023] Figure 3 For the present utility model Figure 2 Schematic perspective view of a partial enlarged structure at location A of;

[0024] Figure 4 This is a schematic perspective view of a partial structure of the push rod body of the present utility model.

[0025] Legend: 1. Clamp body; 2. Anti-detachment component; 3. Positioning component; 4. Cylinder body; 5. Handle body; 6. Grip rod; 7. Push rod body; 8. First spring; 21. Rectangular groove; 22. Protrusion; 23. Grooved block; 24. L-shaped block; 25. Second spring; 26. Rectangular strip; 27. Round rod; 28. Fastening component; 281. Slide groove; 282. Screw; 283. Threaded ring; 29. Rib; 31. Card slot; 32. U-shaped rod; 33. Rubber band. Detailed implementation manners

[0026] Example 1, as Figures 1-3 shown, a push rod anti-detachment mechanism for a clip applicator, including a push rod body 7, a clamp body 1 is arranged on one side of the push rod body 7, one end of the clamp body 1 is fixedly connected to a cylinder body 4, the push rod slides on the inner wall of the cylinder body 4, a handle body 5 is fixedly connected to one side of the clamp body 1, a grip rod 6 is rotatably connected to one side of the clamp body 1, a first spring 8 is arranged at the top of the grip rod 6, and both ends of the first spring 8 are fixedly connected to one side of the top of the grip rod 6 and one side of the inner wall of the cylinder body 4. An anti-detachment component 2 is arranged at one end of the push rod body 7 away from the clamp body 1, and a positioning component 3 is arranged at the top of the clamp body 1. When using the clip applicator, push the grip rod 6 to rotate and compress the first spring 8, so that the push rod body 7 slides on the inner wall of the cylinder body 4 to push the ligating clip inside the cylinder body 4 to the clamp, and release the grip rod 6, the first spring 8 will return to its original state to push the grip rod 6 and the push rod body 7 back to their original positions. The anti-detachment component 2 can prevent the push rod body 7 from falling off when using the clip applicator.

[0027] Refer to Figures 2-4As shown, in this embodiment: the anti-slip component 2 includes two protrusions 22, and the two protrusions 22 are fixedly connected to the two sides of the push rod body 7 respectively. A rectangular groove 21 is provided at the top of the inner wall of the grip rod 6 and the top of the inner wall of the clamp body 1. One end of the push rod body 7 is fixedly connected with a groove block 23, and the inner wall of the groove block 23 is slidably connected with an L-shaped block 24. A second spring 25 is arranged inside the groove block 23, and the upper and lower ends of the second spring 25 are respectively fixedly connected to one side of the bottom end of the L-shaped block 24 and the bottom end of the inner wall of the groove block 23. By setting the anti-slip component 2, when the clamp is used normally, the L-shaped block 24 is pulled to slide upward on the inner wall of the groove block 23 and the second spring 25 is stretched, and then the groove block 23 is pushed to control the push rod body 7 to rotate so that the protrusions 22 on both sides of the push rod body 7 and the rectangular groove 21 inside the grip rod 6 clamp body 1 are perpendicular to each other, and the groove block 23 and the rectangular groove 21 are parallel to each other. The L-shaped block 24 is released through the second spring 25 Pull the L-shaped block 24 to slide downward on the inner wall of the groove block 23 to press one side of the L-shaped block 24 on the top of the clamp body 1. When the push rod body 7 is controlled to move by the grip 6, one side of the L-shaped block 24 will slide on the top of the clamp body 1. When the push rod body 7 needs to be taken out, pull the L-shaped block 24 away from the clamp body 1 and then push the groove block 23 to rotate so that the groove block 23 and the rectangular groove 21 are perpendicular to each other. At this time, the protrusion 22 and the rectangular groove 21 are parallel to each other. Pull the groove block 23 to make the protrusion 22 on the outer surface of the push rod body 7 pass through the rectangular groove 21 at the top of the grip 6 and the rectangular groove 21 at the top of the clamp body 1 and slide outward to take out the push rod body 7. During storage and transportation, the L-shaped block 24 is used to limit the angle between the groove block 23, the push rod body 7 and the clamp body 1 to avoid the push rod body 7 from accidentally rotating as much as possible, causing the protrusion 22 to be stuck in the rectangular groove 21 and the push rod body 7 to slide out from the inside of the clamp body 1.

[0028] Reference Figures 2-4As shown, in this embodiment: two grooves are provided on one side of the outer surface of the push rod body 7 close to the groove block 23, and a convex strip 29 is fixedly connected to the inner wall of the groove. When the push rod body 7 is inside the clamp body 1, the relative position of the convex strip 22 on the outer surface of the push rod body 7 and the rectangular groove 21 at the top of the grip rod 6 can be more accurately judged by observing the angle between the convex strip 29 at the groove and the clamp body 1. One side of the L-shaped block 24 is fixedly connected to a plurality of rectangular strips 26, and the rectangular strips 26 are linearly distributed on the outer surface of the L-shaped block 24. Pinching the rectangular groove 21 on the outer surface of the L-shaped block 24 and pulling the L-shaped block 24 can increase the contact between the hand and the outer surface of the L-shaped block 24. The friction force when touching makes it more convenient to pull the L-shaped block 24 and it is not easy to slip. The bottom end of the L-shaped block 24 is fixedly connected with a round rod 27. The outer surface of the round rod 27 slides on the inner wall of the groove block 23. The round rod 27 is located inside the second spring 25. When the L-shaped block 24 moves up and down on the inner wall of the groove block 23, the round rod 27 will slide on the inner wall of the groove block 23 and move inside the second spring 25. The round rod 27 can limit and reinforce the angle between the L-shaped block 24 and the groove block 23 and the internal shape of the second spring 25, so as to avoid the angle between the L-shaped block 24 and the groove block 23 from being deflected and the second spring 25 from being deformed laterally as much as possible.

[0029] Refer to the figure Figures 2-4 As shown, in this embodiment: a fastening assembly 28 is provided on one side of the groove block 23 to further fix the position of the L-shaped block 24, and the fastening assembly 28 includes a screw 282, one end of which is fixedly connected to one side of the L-shaped block 24, and a threaded ring 283 is threadedly connected to the outer surface of the screw 282. A sliding groove 281 is provided on one side of the groove block 23, and the outer surface of the screw 282 slides on the inner wall of the sliding groove 281. When the L-shaped block 24 is pulled to slide on the inner wall of the groove block 23, the screw 282 will slide on the inner wall of the sliding groove 281. By clamping the L-shaped block 24 at the top end of the clamp body 1 to prevent the push rod body 7 from falling off, the threaded ring 283 on the outer surface of the screw 282 can be rotated to make the threaded ring 283 move on the outer surface of the screw 282 in the direction of the groove block 23, and one side of the threaded ring 283 is pressed against one side of the groove block 23, so as to further fix the position of the L-shaped block 24 and improve the effect of the anti-slip assembly 2.

[0030] Reference Figures 2-4As shown, in the present embodiment: a positioning assembly 3 is provided at the top of the clamp body 1, and the positioning assembly 3 includes a U-shaped rod 32, and both ends of the U-shaped rod 32 are rotatably connected to both sides of the top of the clamp body 1, a rubber belt 33 is provided on one side of the U-shaped rod 32, and a slot 31 is opened on one side of the top of the L-shaped block 24. When the clamp is transported, the L-shaped block 24 of the anti-slip assembly 2 is stuck at the top of the clamp body 1 to prevent the push rod body 7 from falling off. The U-shaped rod 32 can be pushed to rotate at the top of the clamp body 1, and one end of the U-shaped rod 32 is pressed against one side of the L-shaped block 24, and then the rubber belt 33 is pulled to deform and stick the rubber belt 33 in the slot 31 at the top of the L-shaped block 24, so as to further fix the position of the L-shaped block 24 at the top of the clamp body 1, and to avoid the clamp being hit or shaken during transportation as much as possible, causing the L-shaped block 24 to rotate accidentally, affecting the anti-slip effect of the anti-slip assembly 2 on the push rod body 7.

[0031] Working principle: Before the clip applicator is used, during transportation and storage, the L-shaped block 24 is pulled to slide upward along the inner wall of the groove block 23 to stretch the second spring 25, and then the groove block 23 is pushed to control the rotation of the push rod body 7 so that the convex blocks 22 on both sides of the push rod body 7 are perpendicular to the rectangular grooves 21 inside the grip rod 6 and the clamp body 1, and the groove block 23 is parallel to the rectangular groove 21. After releasing the L-shaped block 24, the second spring 25 pulls the L-shaped block 24 to slide downward along the inner wall of the groove block 23 to press one side of the L-shaped block 24 against the top end of the clamp body 1. Then, the threaded ring 283 is rotated so that the threaded ring 283 moves along the outer surface of the screw rod 282 towards the chute 281, and one side of the threaded ring 283 is pressed against one side of the clamp body 1 to further fix the position of the L-shaped block 24. Finally, the U-shaped rod 32 is pushed to rotate at the top end of the clamp body 1 so that one end of the U-shaped rod 32 abuts against one side of the L-shaped block 24, and the rubber band 33 is pulled to deform and the rubber band 33 is stuck inside the card slot 31 at the top end of the L-shaped block 24 to further fix the position of the L-shaped block 24 at the top end of the clamp body 1. The angle between the groove block 23 and the push rod body 7 and the clamp body 1 is restricted by the L-shaped block 24 to prevent the push rod body 7 from falling off during transportation. When the clip applicator is used normally, the rubber band 33 is taken out from inside the card slot 31, the U-shaped rod 32 is pushed away from the L-shaped block 24, the threaded ring 283 is rotated away from the groove block 23 to release the fixation of the position of the L-shaped block 24, and then the L-shaped block 24 is pulled to slide upward along the inner wall of the groove block 23, and the groove block 23 is pushed to control the rotation of the push rod body 7 so that the convex blocks 22 on both sides of the push rod body 7 are perpendicular to the rectangular grooves 21 inside the grip rod 6 and the clamp body 1, and the groove block 23 is parallel to the rectangular groove 21. After releasing the L-shaped block 24, the second spring 25 pulls the L-shaped block 24 to slide downward along the inner wall of the groove block 23 to press one side of the L-shaped block 24 against the top end of the clamp body 1. When the push rod body 7 is controlled to move by the grip rod 6, one side of the L-shaped block 24 will slide at the top end of the clamp body 1. When the push rod body 7 needs to be taken out, the L-shaped block 24 is pulled away from the clamp body 1 and then the groove block 23 is pushed to rotate so that the groove block 23 is perpendicular to the rectangular groove 21. At this time, the convex block 22 is parallel to the rectangular groove 21. By pulling the groove block 23, the convex block 22 on the outer surface of the push rod body 7 slides out through the rectangular groove 21 at the top end of the grip rod 6 and the rectangular groove 21 at the top end of the clamp body 1, and the push rod body 7 can be taken out.

[0032] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present utility model, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model still belong to the protection scope of the technical solution of the present utility model. In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

Claims

1. A push rod anti-drop mechanism for a clip applier, comprising a push rod body (7), characterized in that: A clamp body (1) is provided on one side of the push rod body (7), one end of the clamp body (1) is fixedly connected to a cylinder (4), the push rod slides on the inner wall of the cylinder (4), a handle body (5) is fixedly connected to one side of the clamp body (1), one side of the clamp body (1) is rotatably connected to a gripping rod (6), a first spring (8) is provided at the top end of the gripping rod (6), two ends of the first spring (8) are fixedly connected to one side of the top end of the gripping rod (6) and one side of the inner wall of the cylinder (4), an anti-slip assembly (2) is provided at one end of the push rod body (7) away from the clamp body (1), and a positioning assembly (3) is provided at the top end of the clamp body (1).

2. The push rod anti-drop mechanism of the clip applier according to claim 1, characterized in that: The anti-slip assembly (2) comprises two protrusions (22), the two protrusions (22) are respectively fixedly connected to the two sides of the push rod body (7), the top of the inner wall of the grip rod (6) and the top of the inner wall of the clamp body (1) are provided with a rectangular groove (21), one end of the push rod body (7) is fixedly connected to a groove block (23), the inner wall of the groove block (23) is slidably connected to an L-shaped block (24), a second spring (25) is arranged inside the groove block (23), and the upper and lower ends of the second spring (25) are respectively fixedly connected to one side of the bottom end of the L-shaped block (24) and the bottom end of the inner wall of the groove block (23).

3. The push rod anti-drop mechanism of the clip applier according to claim 2, characterized in that: Two grooves are formed on one side of the outer surface of the push rod body (7) close to the groove block (23), and a convex strip (29) is fixedly connected to the inner wall of the groove.

4. The push rod anti-drop mechanism of the clip applier according to claim 3, characterized in that: A plurality of rectangular strips (26) are fixedly connected to one side of the L-shaped block (24), and the rectangular strips (26) are linearly distributed on the outer surface of the L-shaped block (24).

5. The push rod anti-drop mechanism of the clip applier according to claim 4, characterized in that: The bottom end of the L-shaped block (24) is fixedly connected to a round rod (27), the outer surface of the round rod (27) slides on the inner wall of the groove block (23), and the round rod (27) is located inside the second spring (25).

6. The push rod anti-drop mechanism of the clip applier according to claim 5, characterized in that: A fastening assembly (28) is provided on one side of the slot block (23) for further fixing the position of the L-shaped block (24).

7. The push rod anti-drop mechanism of the clip applier according to claim 6, characterized in that: The fastening assembly (28) comprises a screw rod (282), one end of which is fixedly connected to one side of the L-shaped block (24), the outer surface of the screw rod (282) is threadedly connected to a threaded ring (283), one side of the groove block (23) is provided with a sliding groove (281), and the outer surface of the screw rod (282) slides on the inner wall of the sliding groove (281).

8. The push rod anti-drop mechanism of the clip applier according to claim 2, characterized in that: A positioning assembly (3) is provided at the top end of the clamp body (1), and the positioning assembly (3) comprises a U-shaped rod (32), both ends of the U-shaped rod (32) are rotatably connected to both sides of the top end of the clamp body (1), a rubber belt (33) is provided on one side of the U-shaped rod (32), and a slot (31) is provided on one side of the top end of the L-shaped block (24).

Images