Adjustable slip nodule plication shears

Abstract

The utility model relates to shearing force technical field discloses a kind of adjustable synovial fold shearing force, including handle one, the one end of handle one is fixedly connected with turning plate, the inside rotation of turning plate is connected with handle two, reset component is provided between handle one and handle two, the reset component is used to drive handle two reset, the one end of turning plate is rotatably connected with extension rod, the one end of extension rod is rotatably connected with hook knife and segmentation knife.The utility model in which, first through small diameter, pipe-like shearing force with scale design, allow to enter inside through very small incision, realize minimally invasive treatment, greatly reduce the trauma of operation, while not only reduce the complexity of doctor operation, can also be flexibly operated in narrow operation space, facilitate hooking synovial fold and cutting in operation, in addition, the shearing force simple structure is lower in cost, effectively reduce medical cost.

Description

Technical Field

[0001] This utility model relates to the field of shearing pliers technology, and in particular to an adjustable synovial fold shearing pliers. Background Technology

[0002] With the continuous advancement of medical technology, minimally invasive surgery has been widely applied in orthopedics, joint surgery, and other fields. Synovial plicae are tissue structures that cover the interior of a joint. Hyperplasia or lesions of some synovial plicae can lead to symptoms such as limited joint movement and pain, thus requiring surgical repair or removal. To improve the precision and efficiency of the surgery, surgeons typically use specialized surgical instruments, such as cutting forceps and hook knives, to flexibly manipulate and cut the synovial plicae within the joint cavity.

[0003] Traditional treatment for synovial folds is usually performed surgically, using scalpels to cut the synovial folds. During the surgery, the doctor uses specialized surgical instruments, such as scalpels, curved scissors, or electrocautery, under general or local anesthesia to enter the joint cavity and precisely cut or remove the abnormal synovial tissue.

[0004] Traditional treatment of synovial folds usually involves excision using conventional surgical instruments. While this method is effective, it requires a large incision, resulting in significant trauma and a long recovery time. Furthermore, the limited operating space during surgery can affect the precision of the excision. Additionally, the fixed cutting angle of some cutting forceps makes it difficult to adapt to the needs of excision of synovial folds in different locations, thus affecting the flexibility and accuracy of the surgery. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an adjustable synovial fold shearing forceps, which aims to improve the problems of existing synovial fold treatment tools that are usually too large, require a large incision, cause greater trauma, and are difficult to adapt to the needs of synovial fold resection in different locations, thus affecting the flexibility and accuracy of the operation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable synovial fold shearing pliers, comprising a handle one, a turning plate fixedly connected to one end of the handle one, a handle two rotatably connected inside the turning plate, a reset assembly provided between the handle one and the handle two, the reset assembly being used to drive the handle two to reset, an extension rod rotatably connected to one end of the turning plate, a hook blade and a dividing blade rotatably connected to one end of the extension rod, one side of the outer wall of the hook blade and one side of the outer wall of the dividing blade being slidably connected, and a driving assembly provided at one end of the handle two, the driving assembly being used to drive the hook blade to move;

[0007] The drive assembly includes a first wire harness, one end of which is fixedly connected to one end of a second handle, and the other end of which is fixedly connected to a rotating disk. A limit disk is slidably connected to the middle of the first wire harness, and a second wire harness is fixedly connected to one side of the outer wall of the rotating disk. One end of the second wire harness is fixedly connected to the outer wall of the hook knife.

[0008] Furthermore, the reset assembly includes a telescopic rod disposed between the first handle and the second handle. Both ends of the telescopic rod are fixedly connected to a rotating shaft. The outer wall of the rotating shaft is rotatably connected to the inside of the first handle and the second handle. A spring is sleeved on the outer wall of the telescopic rod.

[0009] Furthermore, one end of the extension rod is fixedly connected to a limiting shaft, and a threaded rod is rotatably connected inside the limiting shaft. One end of the threaded rod is fixedly connected to a handwheel, and a fixing component is provided on the outer wall of the threaded rod. The fixing component is used to fix the limiting shaft after rotation.

[0010] Furthermore, the fixing component includes a threaded sleeve, the inner thread of which is connected to the outer wall of the threaded rod, a push plate is rotatably connected to the outer wall of the threaded rod, and a locking block is rotatably connected to one end of the push plate.

[0011] Furthermore, the outer wall of the limiting disc is rotatably connected to the inside of the turning plate, and the limiting disc is used to guide the wire harness.

[0012] Furthermore, the outer wall of the rotating disk is rotatably connected to the inside of the extension rod, and the rotating disk is used to drive one end of the second wire harness to move.

[0013] Furthermore, both ends of the spring are fixedly connected to the outer wall of the rotating shaft.

[0014] Furthermore, the outer wall of the locking block is slidably connected to the inside of the turning plate, and the locking block is used to fix the limiting shaft.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the small-diameter, cylindrical, graduated cutting forceps allow entry into the body through a very small incision, enabling minimally invasive treatment and greatly reducing surgical trauma. Then, pulling the second handle causes the spring to contract, driving the movement of the first and second wire harnesses, which in turn rotates the hook blade at one end of the extension rod. This, in conjunction with the dividing blade, cuts the synovial folds. After cutting, releasing the second handle causes the spring to return to its original position, facilitating future use. This not only reduces the complexity of the doctor's operation but also allows for flexible operation in confined surgical spaces, making it easy to hook and cut the synovial folds during surgery. Furthermore, the cutting forceps have a simple structure and low cost, effectively reducing medical costs.

[0017] 2. In this utility model, the threaded rod is rotated by driving the handle. The threaded relationship between the threaded rod and the threaded sleeve is used to make the threaded sleeve move inside the limiting shaft, thereby driving the push plate to push the locking block to slide. When the locking block is fully inside the limiting shaft, the extension rod can be pulled to rotate around the limiting shaft inside the turning plate to achieve angle adjustment. After the adjustment is completed, the handle is reversed to fix the locking block back inside the turning plate, ensuring angle stability and improving the applicability and flexibility of the instrument. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of an adjustable synovial fold shearing clamp proposed in this utility model;

[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 This is a schematic diagram of the internal structure of the turning plate of an adjustable synovial fold shearing clamp proposed in this utility model.

[0021] Figure 4 This is a schematic diagram of the internal structure of the extension rod of an adjustable synovial fold shearing clamp proposed in this utility model.

[0022] Figure 5 This is a schematic diagram of the extension rod end of an adjustable synovial fold shearing clamp proposed in this utility model.

[0023] Figure 6 for Figure 5 Enlarged view of section B in the middle.

[0024] Legend:

[0025] 1. Handle 1; 2. Handle 2; 3. Turning plate; 4. Rotating shaft; 5. Telescopic rod; 6. Spring; 7. Wire harness 1; 8. Limiting plate; 9. Extension rod; 10. Rotating plate; 11. Wire harness 2; 12. Hook knife; 13. Dividing knife; 14. Limiting shaft; 15. Threaded rod; 16. Threaded sleeve; 17. Push plate; 18. Locking block; 19. Handwheel. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figures 1-4 This utility model provides an embodiment of an adjustable synovial fold shearing forceps, including a handle 1. One end of the handle 1 is fixedly connected to a turning plate 3. The inside of the turning plate 3 is rotatably connected to a handle 2. The handle 1 and handle 2 are convenient for doctors to use during surgery. A reset component is provided between the handle 1 and handle 2. The reset component is used to drive the handle 2 to reset, improving ease of use and efficiency. One end of the turning plate 3 is rotatably connected to an extension rod 9. The extension rod 9 is made of a high-strength and lightweight material, which can reduce the weight of the instrument while maintaining its sturdiness. One end of the extension rod 9 is rotatably connected to a hook blade 12 and a dividing blade 13. One side of the outer wall of the hook blade 12 is slidably connected to one side of the outer wall of the dividing blade 13. The hook blade 12 and the dividing blade 13 achieve precise cooperation to achieve shearing. One end of the handle 2 is provided with a drive component, which is used to drive the hook blade 12 to move.

[0028] The drive assembly includes a wiring harness 7, one end of which is fixedly connected to one end of a handle 2, and the other end of which is fixedly connected to a rotating disk 10. A limit disk 8 is slidably connected to the middle of the wiring harness 7. A wiring harness 11 is fixedly connected to one side of the outer wall of the rotating disk 10, and one end of the wiring harness 11 is fixedly connected to the outer wall of the hook knife 12. The reset assembly includes a telescopic rod 5, which is located between the handle 1 and the handle 2. Both ends of the telescopic rod 5 are fixedly connected to a rotating shaft 4. The outer wall of the rotating shaft 4 is rotatably connected to the inside of the handle 1 and the handle 2. A spring 6 is sleeved on the outer wall of the telescopic rod 5 to ensure the stability and reliability of its reset.

[0029] Specifically, first, place the hook blade 12 on one side of the membrane. At this point, adjust the initial angle of the hook blade 12 according to the target location to ensure precise cutting. Then, pull the handle 2 towards the handle 1, causing the spring 6 to contract. Simultaneously, the spring 6 provides a smooth rebound force to the handle 2 through the telescopic rod 5, ensuring smooth operation. At this time, one end of the handle 2 will rotate inside the turning plate 3. This rotating structure ensures the handle's flexibility and durability. Then, the rotation of the handle 2 drives one end of the wire harness 7 to move. During this movement, the wire harness 7 is guided by the limiting disc 8, ensuring smooth sliding inside the extension rod 9. Then, the wire harness 7... The other end drives the rotating disk 10 to rotate. At this time, the rotation of the rotating disk 10 drives one end of the second wire harness 11 to move. At the same time, the other end of the second wire harness 11 provides additional control precision through the sliding connection between the hook knife 12 and the dividing knife 13. Then, the other end of the second wire harness 11 pulls the hook knife 12 to rotate at one end of the extension rod 9, and works with the dividing knife 13 to cut the membrane. During the cutting process, the precise cooperation between the hook knife 12 and the dividing knife 13 can effectively reduce damage to the surrounding tissue. After cutting, the handle 2 is released. At this time, the spring 6 is no longer under force and rebounds. It returns to its original shape through its own elasticity, thereby driving the handle 2 to reset, which is convenient for the next use and avoids fatigue of the handle due to overuse.

[0030] Reference Figure 1 , Figure 5 and Figure 6 One end of the extension rod 9 is fixedly connected to the limiting shaft 14. The inside of the limiting shaft 14 is rotatably connected to the threaded rod 15. One end of the threaded rod 15 is fixedly connected to the handwheel 19. The handwheel 19 adopts an anti-slip structure that conforms to the human grip design to improve the comfort of the doctor's operation. The outer wall of the threaded rod 15 is provided with a fixing component. The fixing component is used to fix the limiting shaft 14 after rotation to prevent loosening from affecting the surgical operation. The fixing component includes a threaded sleeve 16. The inside of the threaded sleeve 16 is threadedly connected to the outer wall of the threaded rod 15. The outer wall of the threaded rod 15 is rotatably connected to the push plate 17. One end of the push plate 17 is rotatably connected to the locking block 18. The outer wall of the limiting plate 8 is rotatably connected to the inside of the turning plate 3. The limiting plate 8 is used to guide the first wire harness 7. The outer wall of the rotating plate 10 is rotatably connected to the inside of the extension rod 9. The rotating plate 10 is used to drive one end of the second wire harness 11 to move. Both ends of the spring 6 are fixedly connected to the outer wall of the rotating shaft 4. The outer wall of the locking block 18 is slidably connected to the inside of the turning plate 3. The locking block 18 is used to fix the limiting shaft 14.

[0031] Specifically, the drive handwheel 19 drives the threaded rod 15 to rotate. The rotation of the threaded rod 15 achieves precise transmission through the internal threaded connection of the threaded sleeve 16. The threaded relationship between the threaded rod 15 and the threaded sleeve 16 allows the threaded sleeve 16 to move within the limiting shaft 14 as the threaded rod 15 rotates. During this movement, the threaded sleeve 16 ensures the reliability of the entire device through its stable mechanical structure. The movement of the threaded sleeve 16 then drives one end of the push plate 17 to move. Simultaneously, the movement of one end of the push plate 17 evenly transmits force to the other end, which in turn pushes the locking block 18 against the limiting shaft 14. The extension rod 9 slides inside the turning plate 3. During this sliding process, the locking block 18 relies on its surface design to fit against the inner wall of the limiting shaft 14, thus achieving stability during angle adjustment. When the locking block 18 is completely moved inside the limiting shaft 14, the extension rod 9 can be pulled to rotate inside the turning plate 3 with the limiting shaft 14 as the center to adjust the angle. This adjustment process is both precise and flexible. After the angle is adjusted, the handwheel 19 is driven in the opposite direction, so that the locking block 18 moves back inside the turning plate 3, ensuring that the angle of the extension rod 9 is fixed, thereby achieving the effect of angle adjustment, while avoiding the angle after adjustment from shifting due to accidental vibration or external force.

[0032] Working principle: When the adjustable pleated membrane cutting pliers are needed, first place the hook blade 12 on one side of the membrane, then pull the handle 2 towards the handle 1, causing the spring 6 to contract. At this time, one end of the handle 2 will rotate inside the turning plate 3. The rotation of the handle 2 will then drive one end of the wire harness 7 to move. With the guidance of the limiting plate 8, the wire harness 7 can slide inside the extension rod 9. The other end of the wire harness 7 will then drive the rotating plate 10 to rotate. The rotation of the rotating plate 10 will then drive one end of the wire harness 11 to move. The other end of the wire harness 11 will then pull the hook blade 12 to rotate at one end of the extension rod 9. With the help of the dividing blade 13, the membrane is cut. After cutting, release the handle 2. At this time, the spring 6 will no longer be under force and will rebound, thereby driving the handle 2 to reset for the next use.

[0033] Furthermore, the drive handwheel 19 drives the threaded rod 15 to rotate. In conjunction with the threaded relationship between the threaded rod 15 and the threaded sleeve 16, the threaded sleeve 16 moves inside the limiting shaft 14 as the threaded rod 15 rotates. The movement of the threaded sleeve 16 then drives one end of the push plate 17 to move, and the other end of the push plate 17 pushes the locking block 18 to slide inside the limiting shaft 14 and the turning plate 3. When the locking block 18 has completely moved inside the limiting shaft 14, the extension rod 9 can be pulled to rotate inside the turning plate 3 with the limiting shaft 14 as the center for angle adjustment. After the angle is adjusted, the drive handwheel 19 is reversed, so that the locking block 18 moves back inside the turning plate 3 and is fixed, thus achieving the effect of angle adjustment.

[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. An adjustable synovial fold shearing clamp, comprising a handle (1), characterized in that: One end of the first handle (1) is fixedly connected to a turning plate (3), and the inside of the turning plate (3) is rotatably connected to a second handle (2). A reset component is provided between the first handle (1) and the second handle (2). The reset component is used to drive the second handle (2) to reset. One end of the turning plate (3) is rotatably connected to an extension rod (9). One end of the extension rod (9) is rotatably connected to a hook knife (12) and a dividing knife (13). One side of the outer wall of the hook knife (12) is slidably connected to one side of the outer wall of the dividing knife (13). One end of the second handle (2) is provided with a driving component. The driving component is used to drive the hook knife (12) to move. The drive assembly includes a first wire harness (7), one end of which is fixedly connected to one end of the second handle (2), and the other end of which is fixedly connected to a rotating disk (10). A limit disk (8) is slidably connected to the middle of the first wire harness (7). A second wire harness (11) is fixedly connected to one side of the outer wall of the rotating disk (10), and one end of the second wire harness (11) is fixedly connected to the outer wall of the hook knife (12).

2. The adjustable synovial fold shearing clamp according to claim 1, characterized in that: The reset assembly includes a telescopic rod (5), which is disposed between the first handle (1) and the second handle (2). Both ends of the telescopic rod (5) are fixedly connected to a rotating shaft (4). The outer wall of the rotating shaft (4) is rotatably connected to the inside of the first handle (1) and the second handle (2). A spring (6) is sleeved on the outer wall of the telescopic rod (5).

3. The adjustable synovial fold shearing clamp according to claim 1, characterized in that: One end of the extension rod (9) is fixedly connected to a limiting shaft (14), and a threaded rod (15) is rotatably connected inside the limiting shaft (14). One end of the threaded rod (15) is fixedly connected to a handwheel (19), and a fixing component is provided on the outer wall of the threaded rod (15). The fixing component is used to fix the limiting shaft (14) after rotation.

4. The adjustable synovial fold shearing clamp according to claim 3, characterized in that: The fixing component includes a threaded sleeve (16), the inside of which is threadedly connected to the outer wall of the threaded rod (15), and a push plate (17) is rotatably connected to the outer wall of the threaded rod (15), with a locking block (18) rotatably connected to one end of the push plate (17).

5. The adjustable synovial fold shearing clamp according to claim 1, characterized in that: The outer wall of the limiting disk (8) is rotatably connected to the inside of the turning plate (3), and the limiting disk (8) is used to guide the wire harness (7).

6. The adjustable synovial fold shearing clamp according to claim 1, characterized in that: The outer wall of the rotating disk (10) is rotatably connected to the inside of the extension rod (9), and the rotating disk (10) is used to drive one end of the wire harness (11) to move.

7. An adjustable synovial fold shearing clamp according to claim 2, characterized in that: Both ends of the spring (6) are fixedly connected to the outer wall of the rotating shaft (4).

8. An adjustable synovial fold shearing clamp according to claim 4, characterized in that: The outer wall of the locking block (18) is slidably connected to the inside of the turning plate (3), and the locking block (18) is used to fix the limiting shaft (14).

Images