Detachable clip applier

Abstract

The utility model relates to the technical field of medical instruments, in particular to a detachable clip applier which comprises a first clip applier tube, a second clip applier tube, a first traction tube and a second traction tube, and clip appliers with various specifications, sizes and lengths can be realized by replacing the second traction tubes with different lengths and the second clip tubes matched with the second traction tubes. Compared with the prior art, blood vessels at different positions can be met by only one clip applier in the operation process, the operation cost is reduced, and the clip applier is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a detachable clip applier. Background Art

[0002] A clip applier is a commonly used medical instrument tool, which is used to fix or clamp an absorbable clip to cut off a blood vessel. During surgery, since human blood vessels are complicated and located at different depths in the body, it is necessary to replace clips of different lengths. The handle portion and the clamp tube portion of the existing clip applier are integrally formed and cannot be disassembled. Therefore, multiple clip appliers of different specifications and sizes are needed during the surgery, which not only increases the cost of the surgery, but also makes the use of the clips inconvenient due to the excessive number of clip appliers. Therefore, there is an urgent need for a detachable clip applier, which only requires one clip applier to meet the needs of blood vessels in different positions during surgery, which not only reduces the cost of the surgery but also is easy to use. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a detachable clip applier, which only needs one clip applier to meet the needs of blood vessels in different positions during surgery, which not only reduces the cost of surgery but also is easy to use.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a detachable clip applicator, comprising:

[0005] A hand-held part, the hand-held part comprises a movable handle, a pressure plate, a return spring, a fixed handle, a first clamp tube and a first traction tube, a connecting piece is fixedly provided in the first clamp tube, the connecting piece extends to one end outside the first clamp tube, a first through hole is provided on the connecting piece, the first through hole is communicated with the first clamp tube, a first external thread is provided on a section of the outer wall of the first through hole located outside the first clamp tube, a groove is provided on the inner wall of the first through hole, the fixed handle is connected to the outer wall of the first clamp tube, a return spring is provided at one end of the connecting piece away from the first external thread, the first traction tube is sleeved on the return spring, a convex block is provided on the outer wall of the first traction tube, the convex block is slidably connected to the groove, a second external thread is provided on one end of the first traction tube, the pressure plate is connected to the movable handle, the pressure plate abuts against the first traction tube, the return spring is located between the pressure plate and the connecting piece, and the movable handle is pivotally connected to the first clamp tube;

[0006] The clamping part includes a second clamp tube, a second traction tube, a rotating joint, a connecting plate, a first pivot axis, a second pivot axis, a first clamp head and a second clamp head. One end of the second clamp tube is provided with a first internal thread matching the first external thread. The connecting plate is connected to the inside of the other end of the second clamp tube. The first clamp head is pivoted to the connecting plate through the first pivot axis. The second clamp head is pivoted to the connecting plate through the second pivot axis. The axial direction of the first pivot axis is perpendicular to the connecting plate. The axial direction of the second pivot axis is parallel to the first pivot axis. The first clamp head and the second clamp head are symmetrically arranged with respect to the axial direction of the second clamp tube. A limiting part is provided on the first clamp head and the second clamp head. The second traction tube includes a first section and a second section. The first section is connected to the second section through a rotating joint. One end of the second traction tube is provided with a second internal thread matching the second external thread. The other end of the second traction tube is provided with a limiting block matching the limiting part. The limiting part cooperates with the limiting block to switch the first clamp head and the second clamp head between the first state and the second state.

[0007] In the first state, the first clamp head and the second clamp head are closed inwardly;

[0008] In the second state, the first clamp and the second clamp are opened outward.

[0009] Furthermore, a second through hole for the thumb to pass through is provided on the movable handle.

[0010] Furthermore, a spring sheet is provided between the movable handle and the fixed handle.

[0011] Furthermore, the groove is a strip-shaped groove.

[0012] Furthermore, the first pivot axis and the second pivot axis are symmetrically arranged with respect to the axial direction of the second clamp tube.

[0013] The beneficial effect of the utility model is that by replacing the second traction tube of different lengths and the second clamp tube matching the second traction tube, clips of various specifications, sizes and lengths can be realized. Compared with the prior art, only one clip is needed to meet the needs of blood vessels in different positions during the operation, which not only reduces the cost of the operation but also makes it easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of a detachable clip applier structure according to a specific embodiment of the utility model;

[0015] Figure 2 This is an enlarged view of part A of 1;

[0016] Figure 3 It is another structural schematic diagram of a detachable clip applier knot according to a specific embodiment of the utility model;

[0017] Figure 4 for Figure 3 A magnified view of part B;

[0018] Figure 5 It is a schematic diagram of the internal structure of a detachable clip applier according to a specific embodiment of the utility model;

[0019] Figure 6 for Figure 5 Enlarged view of part C;

[0020] Figure 7 for Figure 5 Enlarged view of part D.

[0021] Description of symbols

[0022] 1. Hand-held part; 11. Movable handle; 111. Second through hole; 12. Pressing plate; 13. Reset spring; 14. Fixed handle; 15. First clamp tube; 151. Connecting piece; 1511. First through hole; 1512. First external thread; 1513. Groove; 16. First traction tube; 161. Bump; 162. Second external thread; 2. Clamping part; 21. Second clamp tube; 211. First internal thread; 22. Second traction tube; 221. Second internal thread; 222. Stop block; 23. Rotary joint; 24. Connecting plate; 25. First pivot axis; 26. Second pivot axis; 27. First clamp head; 28. Second clamp head; 29. ​​Stop part; 3. Shrapnel. DETAILED DESCRIPTION

[0023] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0024] Please refer to Figures 1 to 7 , a detachable clip applier, comprising:

[0025] The handheld part 1 includes a movable handle 11, a pressure plate 12, a return spring 13, a fixed handle 14, a first clamp tube 15 and a first traction tube 16. A connecting piece 151 is fixedly provided in the first clamp tube 15. The connecting piece 151 extends to one end outside the first clamp tube 15. A first through hole 1511 is provided on the connecting piece 151. The first through hole 1511 is connected to the first clamp tube 15. A first external thread 1512 is provided on a section of the outer wall of the first through hole 1511 outside the first clamp tube 15. A groove 1513 is provided on the inner wall of the first through hole 1511. The fixed handle 14 is connected to the outer wall of the first clamp tube 15, a reset spring 13 is provided at one end of the connecting member 151 away from the first external thread 1512, the first traction tube 16 is sleeved on the reset spring 13, a convex block 161 is provided on the outer wall of the first traction tube 16, the convex block 161 is slidably connected with the groove 1513, a second external thread 162 is provided at one end of the first traction tube 16, the pressing plate 12 is connected to the movable handle 11, the pressing plate 12 abuts against the first traction tube 16, the reset spring 13 is located between the pressing plate 12 and the connecting member 151, and the movable handle 11 is pivotally connected to the first clamp tube 15;

[0026] The clamping part 2 includes a second clamp tube 21, a second traction tube 22, a rotary joint 23, a connecting plate 24, a first pivot shaft 25, a second pivot shaft 26, a first clamp head 27 and a second clamp head 28. One end of the second clamp tube 21 is provided with a first internal thread 211 matching the first external thread 1512. The connecting plate 24 is connected to the inside of the other end of the second clamp tube 21. The first clamp head 27 is pivoted to the connecting plate 24 through the first pivot shaft 25. The second clamp head 28 is pivoted to the connecting plate 24 through the second pivot shaft 26. The axial direction of the first pivot shaft 25 is perpendicular to the connecting plate 24. The axial direction of the second pivot shaft 26 is perpendicular to the connecting plate 24. Parallel to the first pivot axis 25, the first clamp head 27 and the second clamp head 28 are symmetrically arranged with respect to the axial direction of the second clamp tube 21, and a limiting portion 29 is provided on the first clamp head 27 and the second clamp head 28. The second traction tube 22 includes a first section and a second section, and the first section is connected to the second section through a rotary joint 23. One end of the second traction tube 22 is provided with a second internal thread 221 matching the second external thread 162, and the other end of the second traction tube 22 is provided with a limiting block 222 matching the limiting portion 29. The limiting portion 29 cooperates with the limiting block 222 to switch the first clamp head 27 and the second clamp head 28 between the first state and the second state.

[0027] In the first state, the first clamp 27 and the second clamp 28 are closed inwardly;

[0028] In the second state, the first clamp 27 and the second clamp 28 are opened outwards;

[0029] In the above embodiment, the medical staff fixes the second traction tube 22 and the first traction tube 16 through threaded connection, and then sleeves the second clamp tube 21 on the second traction tube 22 and threadedly connects it with the first clamp tube 15. It should be noted that a baffle is provided at one end of the first traction tube close to the pressure plate, and the baffle is used to limit the return spring. At this time, the movable handle 11 is rotated to make the pressure plate 12 squeeze the baffle, and the baffle squeezes the return spring 13, so that the first traction tube 16 slides in the groove 1513 along the axial direction of the second clamp tube 21, so that the limit block 222 cooperates with the limit part 29 to open the first clamp head 27 and the second clamp head 28, and then aligns them with the absorbable fixing clip, releases the movable handle 11, and the return spring returns to its original position due to elastic potential energy, and the baffle abuts against the pressure plate. When the clamp head 28 is closed, the absorbable fixation clamp is clamped. The limiting portion 29 includes a first surface, a second surface, a third surface and a fourth surface. The first surface is parallel to the second surface. The two sides of the limiting block 222 respectively abut against the first surface and the second surface, so that the first clamp head 27 and the second clamp head 28 are closed. The third surface has an angle with the first surface, and the fourth surface has an angle with the second surface. The angles are the same. The two sides of the limiting block 222 abut against the third surface and the fourth surface, so that the first clamp head 27 and the second clamp head 28 are opened outward. Then, by replacing the second traction tube 22 of different lengths and the second clamp tube 21 matching the second traction tube 22, clamps of various specifications and lengths can be realized. Compared with the prior art, only one clamp is needed to meet the needs of blood vessels in different positions during the operation, which not only reduces the cost of the operation but also is easy to use.

[0030] As an optional implementation, the movable handle 11 is provided with a second through hole 111 for the thumb to pass through.

[0031] As an optional implementation, a spring piece 3 is provided between the movable handle 11 and the fixed handle 14 .

[0032] In the above embodiment, by providing the spring sheet 3 , the first clamp head 27 and the second clamp head 28 can be returned to the closed state by loosening the movable handle 11 .

[0033] As an optional implementation, the groove 1513 is a strip-shaped groove.

[0034] In the above embodiment, by providing the strip groove, when the first traction tube 16 and the second traction tube 22 are threadedly connected, the first traction tube 16 will not rotate relative to the second traction tube 22 .

[0035] As an optional implementation, the first pivot axis 25 and the second pivot axis 26 are symmetrically arranged with respect to the axial direction of the second clamp tube 21 .

[0036] In the above embodiment, the opening and closing angles of the first clamp 27 and the second clamp 28 can be made the same, so as to better loosen and clamp the absorbable fixing clamp.

[0037] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A detachable clip applier, characterized in that: include: A hand-held part, the hand-held part comprises a movable handle, a pressure plate, a return spring, a fixed handle, a first clamp tube and a first traction tube, a connecting piece is fixedly provided in the first clamp tube, the connecting piece extends to one end outside the first clamp tube, a first through hole is provided on the connecting piece, the first through hole is communicated with the first clamp tube, a first external thread is provided on a section of the outer wall of the first through hole located outside the first clamp tube, a groove is provided on the inner wall of the first through hole, the fixed handle is connected to the outer wall of the first clamp tube, a return spring is provided at one end of the connecting piece away from the first external thread, the first traction tube is sleeved on the return spring, a convex block is provided on the outer wall of the first traction tube, the convex block is slidably connected to the groove, a second external thread is provided on one end of the first traction tube, the pressure plate is connected to the movable handle, the pressure plate abuts against the first traction tube, the return spring is located between the pressure plate and the connecting piece, and the movable handle is pivotally connected to the first clamp tube; The clamping part includes a second clamp tube, a second traction tube, a rotating joint, a connecting plate, a first pivot axis, a second pivot axis, a first clamp head and a second clamp head. One end of the second clamp tube is provided with a first internal thread matching the first external thread. The connecting plate is connected to the inside of the other end of the second clamp tube. The first clamp head is pivoted to the connecting plate through the first pivot axis. The second clamp head is pivoted to the connecting plate through the second pivot axis. The axial direction of the first pivot axis is perpendicular to the connecting plate. The axial direction of the second pivot axis is parallel to the first pivot axis. The first clamp head and the second clamp head are symmetrically arranged with respect to the axial direction of the second clamp tube. A limiting part is provided on the first clamp head and the second clamp head. The second traction tube includes a first section and a second section. The first section is connected to the second section through a rotating joint. One end of the second traction tube is provided with a second internal thread matching the second external thread. The other end of the second traction tube is provided with a limiting block matching the limiting part. The limiting part cooperates with the limiting block to switch the first clamp head and the second clamp head between the first state and the second state. In the first state, the first clamp head and the second clamp head are closed inwardly; In the second state, the first clamp and the second clamp are opened outward.

2. The detachable clip applier according to claim 1, characterized in that: The movable handle is provided with a second through hole for the thumb to pass through.

3. The detachable clip applier according to claim 1, wherein: A spring sheet is arranged between the movable handle and the fixed handle.

4. The detachable clip applier according to claim 1, wherein: The groove is a strip-shaped groove.

5. The detachable clip applier according to claim 1, wherein: The first pivot axis and the second pivot axis are symmetrically arranged with respect to the axial direction of the second clamp tube.

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