Clip applying device suitable for double-layer ligature clip

By designing a clamping device suitable for double-layer ligation clamps, the automatic operation of double-layer ligation clamps is achieved by combining the push pipe and the outer pipe, solving the problem of difficult manual operation and reducing operation risks and costs.

CN222815816UActive Publication Date: 2025-05-02JIANGSU GUANCHUANG MEDICAL TECH CO LTD
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Patent Information

Application Number
CN202421167460.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-27
Publication Date
2025-05-02
Estimated Expiration
2034-05-27

AI Technical Summary

Technical Problem

There is a lack of clamping devices suitable for double-layer ligation clamps in the prior art, which makes manual operation difficult and cannot be completed efficiently.

Method used

A clamping device including a handle part, push pipe, outer pipe and ligation clamp placement part is designed. Through the cooperation of push pipe and outer pipe, the piston is pushed by the front push rod to realize the operation of the double-layer ligation clamp, reducing the difficulty of manual operation.

Benefits of technology

This device reduces the difficulty of operating the double-layer ligation clamp, avoids direct contact with the ligation clamp of the push tube, reduces the risk of blood contamination, and makes the device reusable through the rebound structure, reducing costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of medical instruments, in particular to a clip applying device suitable for a double-layer ligature clip. Comprising a handle part, a push tube, an outer tube and a ligation clip placing part, wherein the handle part comprises a movable handle and a fixed handle; the push pipe comprises a front push rod, a connecting rod and a rear push rod; the outer pipe is sleeved outside the push pipe; a ligation clip placing part limiting structure is arranged at the far end of the outer tube; a springback structure is arranged in the outer pipe; the ligature clip placing part comprises an outer sleeve and a piston; the double-layer ligature clip can be placed in the outer sleeve by the aid of the ligature clip placing portion, the piston can be pushed by the front ejector rod, the double-layer ligature clip can be operated by the piston, and the push tube cannot be in direct contact with the ligature clip and cannot be contaminated by blood generated in an operation. The placing part limiting structure can limit the outer sleeve, and the outer sleeve is prevented from falling off in the operation process; the clip applying device can be repeatedly used due to the springback structure, so that the cost is reduced.
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Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a clamp applying device suitable for a double-layer ligation clamp. Background Art

[0002] In surgical operations, the broken blood vessels are usually clamped with hemostatic forceps and then ligated with sutures. This method is more troublesome to operate and reduces the efficiency of the operation. Another method is to block the blood flow with a ligation clamp. The ligation clamp is divided into a single ligation clamp and a double-layer ligation clamp. Compared with the single ligation clamp, the double-layer ligation clamp uses an inner clamp and an outer clamp to cooperate with each other, which has a good closure effect and is more convenient and efficient. The ligation clamp in the prior art is often very small and difficult to operate manually. It can only be operated by tools such as clamp applicators. The Chinese patent document CN218589071U discloses a clamp applicator that solves the problem of inconvenience in manually operating the ligation clamp, but this clamp applicator can only be used for single ligation clamps and cannot be applied to double-layer ligation clamps.

[0003] Therefore, there is an urgent need for a clip applying device that can be applied to a double-layer ligation clip. Utility Model Content

[0004] The utility model aims to provide a clamping device suitable for double-layer ligation clips in view of the deficiencies in the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] Provided is a clip applying device suitable for a double-layer ligation clip, comprising: a handle portion, a push tube, an outer tube, and a ligation clip placing portion;

[0007] Wherein, the handle part includes: a movable handle and a fixed handle; the top end of the fixed handle is fixedly connected to the side wall of one end of the outer tube; the top of the movable handle is rotatably connected to the top of the fixed handle;

[0008] The push tube comprises: a front push rod, a connecting rod and a rear push rod which are sequentially sleeved from the distal end of the clamping device to the proximal end of the clamping device;

[0009] The outer tube is a columnar structure with two ends open, the outer tube is sleeved outside the push tube, and the push tube moves in the outer tube along the axial direction of the outer tube; the top end of the movable handle extends into the outer tube and abuts against the proximal end of the rear push rod; the distal end of the outer tube is provided with a ligation clip placement part limiting structure; the outer tube is provided with a rebound structure;

[0010] The ligation clip placement part comprises: an outer sleeve and a piston; the outer sleeve has openings at both ends; the proximal end of the outer sleeve is detachably sleeved in the distal end of the outer tube; the piston is arranged in the outer sleeve, and the piston moves in the outer sleeve along the axial direction of the outer sleeve.

[0011] Preferably, a connecting rod limiting portion is provided inside the distal end of the rear push rod, and the proximal end of the connecting rod is sleeved in the connecting rod limiting portion and fixedly connected to the connecting rod limiting portion.

[0012] Preferably, a front push rod limiting portion is provided inside the distal end of the connecting rod, and the proximal end of the front push rod is sleeved in the front push rod limiting portion and fixedly connected to the front push rod limiting portion.

[0013] Preferably, a guide structure is disposed on the outer sleeve of the connecting rod; and the outer wall of the guide structure is fixedly connected to the inner wall of the outer tube.

[0014] Preferably, a sealing cap is provided at the proximal end of the outer tube, and a distal end of the sealing cap is sleeved inside the proximal end of the outer tube.

[0015] Preferably, the proximal outer sleeve of the outer tube is provided with an anti-slip portion.

[0016] Preferably, the limiting structure of the ligation clamp placement part includes: a torsion spring and a limiting plate; the torsion spring is arranged in the middle part of the limiting plate, and the limiting plate is movably arranged on the side wall of the outer tube through the torsion spring; a pressing part is provided at the proximal end of the limiting plate; and a limiting block extending along the radial direction of the outer tube is provided at the distal end of the limiting plate.

[0017] More preferably, along the axial direction of the outer sleeve, a pair of through grooves and a pair of limiting grooves matching the limiting blocks are sequentially opened at the proximal end of the outer sleeve.

[0018] Preferably, the rebound structure includes: a spring and a spring stop sleeve; the spring stop sleeve is sleeved outside the connecting rod, and the outer wall of the spring stop sleeve is fixedly connected to the inner wall of the outer tube; the spring sleeve is sleeved outside the connecting rod, the distal end of the spring is fixedly connected to the proximal end of the spring stop sleeve, and the proximal end of the spring is fixedly connected to the distal end of the rear push rod.

[0019] Preferably, a ligation clip placement portion positioning block is further provided on the inner wall of the distal end of the outer tube.

[0020] The utility model adopts the above technical solution, and compared with the prior art, has the following technical effects:

[0021] The utility model provides a ligation clamp placement part so that the double-layer ligation clamp can be placed in the outer sleeve, and the front push rod can push the piston, thereby enabling the piston to operate the double-layer ligation clamp. There is no need for manual direct clamping operation on the double-layer ligation clamp, which reduces the difficulty of operation. At the same time, the push tube will not directly contact the ligation clamp and will not be contaminated by blood generated during the operation. The placement part limiting structure provided at the far end of the outer tube can limit the outer sleeve to prevent the outer sleeve from falling off during the operation, thereby reducing the incidence of medical accidents. The rebound structure allows the clamping device to be repeatedly used, which reduces the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a basic structural schematic diagram of a clipping device in one embodiment of the utility model;

[0023] Figure 2 for Figure 1 A magnified view of point A;

[0024] Reference numerals in the figures include:

[0025] Handle portion 1; movable handle 11; fixed handle 12; push tube 2; front push rod 21; connecting rod 22; front push rod limiting portion 221; guide structure 222; rear push rod 23; connecting rod limiting portion 231; outer tube 3; sealing cap 31; anti-slip portion 32; torsion spring 33; limiting block 34; spring 35; spring stop sleeve 36; positioning block 37; ligation clamp placement portion 4; outer sleeve 41; piston 42; outer layer clamp 5; inner layer clamp 6. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0028] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0029] Example

[0030] This embodiment provides a clip applying device suitable for a double-layer ligation clip, comprising: a handle portion 1, a push tube 2, an outer tube 3 and a ligation clip placement portion 4;

[0031] The handle portion 1 includes: a movable handle 11 and a fixed handle 12; the top of the fixed handle 12 is fixedly connected to the side wall of one end of the outer tube 3; the top of the movable handle 11 is rotatably connected to the top of the fixed handle 12;

[0032] The push tube 2 includes: a front push rod 21, a connecting rod 22 and a rear push rod 23 which are sequentially sleeved from the distal end to the proximal end of the clamping device; a connecting rod limiting portion 231 is provided inside the distal end of the rear push rod 23, and the proximal end of the connecting rod 22 is sleeved in the connecting rod limiting portion 231 and fixedly connected to the connecting rod limiting portion 231; a front push rod limiting portion 221 is provided inside the distal end of the connecting rod 22, and the proximal end of the front push rod 21 is sleeved in the front push rod limiting portion 221 and fixedly connected to the front push rod limiting portion 221; a guide structure 222 is provided on the outer sleeve of the connecting rod 22; the outer wall of the guide structure 222 is fixedly connected to the inner wall of the outer tube 3;

[0033] The outer tube 3 is a columnar structure with two ends open, the outer tube 3 is sleeved outside the push tube 2, and the push tube 2 moves in the outer tube 3 along the axial direction of the outer tube 3; the top end of the movable handle 11 extends into the outer tube 3 and abuts against the proximal end of the rear push rod 23; the proximal end of the outer tube 3 is provided with a sealing cap 31, and the distal end of the sealing cap 31 is sleeved in the proximal end of the outer tube 3; the proximal end of the outer tube 3 is provided with an anti-slip portion 32; the inner wall of the distal end of the outer tube 3 is also provided with a ligation clip placement portion positioning block 37; the distal end of the outer tube 3 is provided with a ligation clip placement portion limiting structure; a rebound structure is provided in the outer tube 3;

[0034] The limiting structure of the ligation clip placement part includes: a torsion spring 33 and a limiting plate; the torsion spring 33 is arranged in the middle of the limiting plate, and the limiting plate is movably arranged on the side wall of the outer tube 3 through the torsion spring 33; a pressing part is arranged at the proximal end of the limiting plate; and a limiting block 34 extending along the radial direction of the outer tube 3 is arranged at the distal end of the limiting plate;

[0035] The rebound structure includes: a spring 35 and a spring stopper sleeve 36; the spring stopper sleeve 36 is sleeved outside the connecting rod 22, and the outer wall of the spring stopper sleeve 36 is fixedly connected to the inner wall of the outer tube 3; the spring 35 is sleeved outside the connecting rod 22, the distal end of the spring 35 is fixedly connected to the proximal end of the spring stopper sleeve 36, and the proximal end of the spring 35 is fixedly connected to the distal end of the rear push rod 23;

[0036] The ligation clip placement part 4 includes: an outer sleeve 41 and a piston 42; the outer sleeve 41 is open at both ends; the proximal end of the outer sleeve 41 is detachably sleeved in the distal end of the outer tube 3; the piston 42 is arranged in the outer sleeve 41, and the piston 42 moves in the outer sleeve 41 along the axial direction of the outer sleeve 41; along the axial direction of the outer sleeve 41, the proximal end of the outer sleeve 41 is sequentially provided with a pair of through grooves and a pair of limit grooves matching the limit block 34.

[0037] When in use, the user presses the outer clip 5 and the inner clip 6 Figure 2 The ligation clamp placement part 4 is placed in the direction and position shown, and the pressing part at the proximal end of the limiting plate is pressed into the outer tube 3, so that the limiting block 34 at the distal end of the limiting plate is tilted. The user inserts the proximal end of the ligation clamp placement part 4 into the distal end of the outer tube 3 until the proximal end of the ligation clamp placement part 4 hits the positioning block 37, indicating that it is installed in place. After installation, the user releases the pressing part to reset the limiting block 34 at the distal end of the limiting plate and snap it into the limiting groove at the proximal end of the outer sleeve 41 to ensure that the ligation clamp placement part 4 will not fall off; if the ligation clamp placement part 4 needs to be removed, the user only needs to press the pressing part again to make the limiting block 34 tilted, and the ligation clamp placement part 4 can be withdrawn from the outer tube 3;

[0038] After placement is completed, the user holds the handle portion 1 and pinches the handle portion 1 toward himself, so that the bottom end of the movable handle 11 moves toward the user's own direction, and then the top end of the movable handle 11 moves toward the patient, thereby pushing the rear push rod 23, the rear push rod 23 moves toward the patient and pushes the connecting rod 22, the connecting rod 22 moves toward the patient and pushes the front push rod 21, after the front push rod 21 moves toward the patient, the distal end of the front push rod 21 extends into the outer sleeve 41 and pushes the piston 42, the piston 42 moves and pushes the outer layer clamp 5, so that the outer layer clamp 5 pushes the inner layer clamp 6 and causes the inner layer clamp 6 to deform, thereby realizing the ligation function;

[0039] After the ligation operation is completed, the user releases the handle portion 1. Under the action of the spring 35, the rear push rod 23 moves toward the user, thereby driving the connecting rod 22 and the front push rod 21 to move toward the user. At the same time, the proximal end of the rear push rod 23 drives the top end of the movable handle 11 to move toward the user, thereby driving the bottom end of the movable handle 11 to return to its initial state.

[0040] In summary, the utility model provides a ligation clamp placement part so that the double-layer ligation clamp can be placed in the outer sleeve, and the front push rod can push the piston, thereby allowing the piston to operate the double-layer ligation clamp. There is no need for manual direct clamping operation on the double-layer ligation clamp, which reduces the difficulty of operation. At the same time, the push tube will not directly contact the ligation clamp and will not be contaminated by blood generated during the operation; the placement part limiting structure provided at the distal end of the outer tube can limit the outer sleeve to prevent the outer sleeve from falling off during operation, thereby reducing the incidence of medical accidents; the rebound structure allows the clamping device to be reused, reducing costs.

[0041] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A clip applicator device suitable for a double-layer ligation clip, characterized in that: include: A handle portion (1), a push tube (2), an outer tube (3) and a ligation clip placement portion (4); The handle portion (1) comprises: a movable handle (11) and a fixed handle (12); the top end of the fixed handle (12) is fixedly connected to a side wall of one end of the outer tube (3); the top of the movable handle (11) is rotatably connected to the top of the fixed handle (12); The push tube (2) comprises: a front push rod (21), a connecting rod (22) and a rear push rod (23) which are sequentially sleeved from the distal end of the clamping device to the proximal end of the clamping device; The outer tube (3) is a columnar structure with two ends open. The outer tube (3) is sleeved outside the push tube (2), and the push tube (2) moves inside the outer tube (3) along the axial direction of the outer tube (3); the top end of the movable handle (11) extends into the outer tube (3) and abuts against the proximal end of the rear push rod (23); the distal end of the outer tube (3) is provided with a ligation clamp placement portion limiting structure; and a rebound structure is provided inside the outer tube (3); The ligation clamp placement part (4) comprises: an outer sleeve (41) and a piston (42); the outer sleeve (41) is open at both ends; the proximal end of the outer sleeve (41) is detachably sleeved inside the distal end of the outer tube (3); the piston (42) is arranged inside the outer sleeve (41), and the piston (42) moves inside the outer sleeve (41) along the axial direction of the outer sleeve (41).

2. The clip applier device according to claim 1, wherein: A connecting rod limiting portion (231) is provided inside the distal end of the rear push rod (23), and the proximal end of the connecting rod (22) is sleeved in the connecting rod limiting portion (231) and fixedly connected to the connecting rod limiting portion (231).

3. The clip applier device according to claim 1, wherein: A front push rod limiting portion (221) is provided inside the distal end of the connecting rod (22), and the proximal end of the front push rod (21) is sleeved in the front push rod limiting portion (221) and fixedly connected to the front push rod limiting portion (221).

4. The clip applier device according to claim 1, wherein: The outer sleeve of the connecting rod (22) is provided with a guide structure (222); the outer wall of the guide structure (222) is fixedly connected to the inner wall of the outer tube (3).

5. The clip applier device according to claim 1, wherein: The proximal end of the outer tube (3) is provided with a sealing cap (31), and the distal end of the sealing cap (31) is sleeved inside the proximal end of the outer tube (3).

6. The clip applier device according to claim 1, wherein: The proximal outer cover of the outer tube (3) is provided with an anti-slip portion (32).

7. The clip applier device according to claim 1, wherein: The limiting structure of the ligation clamp placement part comprises: a torsion spring (33) and a limiting plate; the torsion spring (33) is arranged in the middle part of the limiting plate, and the limiting plate is movably arranged on the side wall of the outer tube (3) through the torsion spring (33); a pressing part is arranged at the proximal end of the limiting plate; and a limiting block (34) extending along the radial direction of the outer tube (3) is arranged at the distal end of the limiting plate.

8. The clip applier device according to claim 7, wherein: Along the axial direction of the outer sleeve (41), the proximal end of the outer sleeve (41) is sequentially provided with a pair of through grooves and a pair of limiting grooves matching the limiting block (34).

9. The clip applier device according to claim 1, wherein: The rebound structure comprises: a spring (35) and a spring stop sleeve (36); the spring stop sleeve (36) is sleeved outside the connecting rod (22), and the outer wall of the spring stop sleeve (36) is fixedly connected to the inner wall of the outer tube (3); the spring (35) is sleeved outside the connecting rod (22), the distal end of the spring (35) is fixedly connected to the proximal end of the spring stop sleeve (36), and the proximal end of the spring (35) is fixedly connected to the distal end of the rear push rod (23).

10. The clip applier device of claim 1, wherein: The inner wall at the distal end of the outer tube (3) is also provided with a ligation clip placement portion positioning block (37).