A correction forceps for scoliosis
By designing a correction forceps with arc rack, gear, clockwork and limit slot, the problems of hand fatigue and unstable clamping caused by artificial long clamping in the prior art are solved, and the stable and automatic clamping and loosening of the correction forceps are achieved, which improves the stability and efficiency of the surgery.
Patent Information
- Application Number
- CN202420589129.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-26
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-03-26
AI Technical Summary
In scoliosis correction surgery, existing correction forceps require manual clamping for a long time, resulting in hand fatigue, and unstable clamping affects the surgical effect.
A correction plier including the first and second plier bodies is designed. Through the structures such as arc racks, gears, clockwork and limiting slots, automatic clamping and loosening are realized, reducing manual gripping time.
The stable clamping of correction forceps is achieved, which reduces manual clamping time, reduces hand fatigue, and improves the stability and efficiency of the operation.
Smart Images
Figure CN222693619U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical instruments, in particular to a correction forceps for scoliosis. Background Art
[0002] Scoliosis refers to a spinal deformity in which the spine is laterally bent and deformed, that is, one or several segments of the spine bend to the side to form a spinal deformity with an arc, or accompanied by vertebral rotation. Scoliosis deformity often causes people to be shorter than their peers, asymmetric backs on both sides, repeated and persistent back pain, etc. Qindu's scoliosis can be observed, and severe cases require surgical treatment. In orthopedic clinical treatment, correction forceps are often required to correct the spine. In the prior art, correction forceps need to be manually clamped and fixed when in use. However, spinal correction surgery takes a long time, and manual clamping can easily cause hand fatigue, resulting in unstable clamping of the correction forceps, which affects the progress of the operation. Utility Model Content
[0003] The utility model aims to provide a correction forceps for scoliosis, which can ensure stable clamping of the correction forceps during surgery, reduce fatigue caused by long-term manual clamping, and facilitate stable surgery.
[0004] The above technical objectives of the utility model are achieved through the following technical solutions:
[0005] A corrective forceps for scoliosis, comprising a first forceps body, one end of the first forceps body is rotatably connected to a second forceps body, one end of the first forceps body and the second forceps body are both provided with a forceps head, an end of the first forceps body away from the corresponding forceps head is provided with an arc rod, a free end of the arc rod is provided with a support shell, one end of the support shell is slidably connected to a limit plate, an inner end of the support shell away from the limit plate is provided with a limit column, a gear rotatably connected to the limit column is rotatably connected to the inner part of the support shell, a spring is provided inside the gear, one end of the spring is connected to the gear, and one end of the spring is connected to the limit column;
[0006] The limit plate is provided with an annular limit groove at one end close to the gear, and a plurality of limit slots arranged at equal intervals are provided inside the annular limit groove; a plurality of limit blocks slidably connected to the annular limit groove and slidably connected to each limit slot are arranged at equal intervals at one end of the gear close to the limit plate; a support rod slidably connected to the limit column is provided at one end of the limit plate close to the limit column, and a first limit block is provided at one end of the support rod away from the limit plate; a spring is provided on the outer side of the support rod between the first limit block and the support shell, and an arc-shaped rack slidably connected to the support shell and meshing with the gear is provided at one end of the second clamp body close to the support shell.
[0007] By adopting the above technical scheme, when performing scoliosis correction surgery and using correction forceps to clamp the spine, the first clamp body and the second clamp body are held by the hands, and the second clamp body is pinched to rotate the second clamp body relative to the first clamp body, and the second clamp body drives the arc-shaped rack to slide relative to the supporting shell on the arc-shaped rod, and at the same time, the arc-shaped rack drives the gear to rotate, and the rotation of the gear drives the mainspring to contract, and the gear drives the limit block to slide relative to the limit slot in the annular limit slot, and the limit block can drive the limit plate to slide relative to the supporting shell during the sliding process relative to the limit slot, and the supporting shell drives the support rod to slide relative to the limit column, and at the same time drives The first limit block compresses the spring, and the elastic force generated by the spring can keep the limit slot and the limit block in a state of being stuck to each other at all times, so that the first clamp body and the second clamp body can be clamped stably, and there is no need to manually hold the first clamp body and the second clamp body tightly with hands all the time, reducing the fatigue of manual clamping for too long. During disassembly, it is only necessary to press the first limit block, and the first limit block compresses the spring. The first limit block drives the support rod limit column to slide, thereby driving the limit plate to slide, so that the limit slot is not stuck and the block is driven to rotate under the action of the spring elastic force, and the gear drives the arc-shaped rack to slide relative to the support, thereby releasing the spine of the first clamp body and the second clamp body.
[0008] The utility model is further configured as follows: each limit slot is provided with an inclined surface which is cut from top to bottom, and each limit block is provided with an inclined surface which is cut from bottom to top.
[0009] The utility model is further configured as follows: a plurality of second limit blocks are arranged at equal intervals at the lower end of the support shell, and the limit plate is provided with limit openings corresponding to and slidably connected to the second limit blocks.
[0010] Compared with the prior art, the utility model has the following beneficial effects:
[0011] First, the orthodontic forceps can always maintain a stable clamping state, reduce fatigue caused by manual clamping for too long, and ensure the stable operation. By holding the first clamp body and the second clamp body, the arc-shaped rack slides relative to the support shell, driving the gear to rotate, thereby compressing the spring. The rotation of the gear drives the limit card block relative to the limit card slot. When the first clamp body and the second clamp body are stably clamped, the spring can make the limit card slot and the limit card block always clamp each other, so that the first clamp body and the second clamp body can be stably clamped;
[0012] Secondly, the correction pliers can be easily disassembled after use. By pressing the second limit block and compressing the spring, the second limit block drives the limit plate to slide relative to the supporting shell through the support rod, so that the limit slot does not get stuck with the limit block. Under the action of the spring elastic force, the gear rotates, driving the arc-shaped rack to rotate relative to the supporting shell, so that the first pliers body and the second pliers body loosen the spine. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0014] Figure 2 It is a partial cross-sectional view of the utility model;
[0015] Figure 3 It is to demonstrate the limit card slot of the utility model;
[0016] Figure 4 The utility model is a limit card block for demonstrating the utility model.
[0017] In the figure: 1. first pliers body; 2. second pliers body; 3. arc rod; 4. support shell; 5. limit column; 6. gear; 7. spring; 8. first limit block; 9. support rod; 10. spring; 11. limit plate; 12. annular limit groove; 13. limit card groove; 14. limit card block; 15. second limit block; 16. limit opening; 17. arc rack; 18. pliers head. DETAILED DESCRIPTION
[0018] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0019] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.
[0020] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0021] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0022] Example, see Figure 1-4A corrective pliers for scoliosis comprises a first pliers body 1, a pliers head 18 is arranged at the front end of the first pliers body 1 and the second pliers body 2, an arc rod 3 is arranged at the rear end of the first pliers body 1, a support shell 4 is arranged at the left end of the arc rod 3, a limiting column 5 is vertically arranged at the center of the upper end inside the support shell 4, a gear 6 is rotatably connected to the outer side of the limiting column 5, a spring 7 is arranged inside the gear 6, one end of the spring 7 is connected to the gear 6, and the other end of the spring 7 is connected to the limiting column 5, and the spring 7 can generate force to facilitate the resetting of the gear 6.
[0023] A limit plate 11 is slidably connected to the lower end of the support shell 4, and a support rod 9 is slidably connected to the limit column 5 and the support shell 4 in the middle of the upper end of the limit plate 11. A first limit block 8 is arranged on the upper end of the support rod 9, and a spring 10 is arranged on the outer side of the support rod 9 between the first limit block 8 and the support shell 4. A circle of annular limit grooves 12 are arranged around the support rod 9 at the upper end of the limit plate 11, and a plurality of limit slots 13 arranged at equal intervals are arranged inside the annular limit groove 12. The lower end of the gear 6 is evenly spaced with a number of limit blocks 14 slidably connected to the annular limit groove 12. The limit blocks 14 correspond to the limit grooves 13 one by one and are slidably connected. The elastic force generated by the spring 10 can facilitate the limit grooves 13 and the limit blocks 14 to always be relatively stuck. Each limit groove 13 is provided with an inclined surface inclined from top to bottom, and each second limit block 15 is provided with an inclined surface inclined from bottom to top, which can facilitate the relative sliding of the limit grooves 13 and the limit blocks 14.
[0024] The rear end of the second clamp body 2 is provided with an arc-shaped rack 17 which is slidably connected to the support shell 4 and meshed with the gear 6. The lower end of the support shell 4 is provided with two slots at equal intervals. The upper end of the limit plate 11 is provided with two second limit blocks 15 which are slidably connected to the corresponding slots at equal intervals. This can prevent the limit block from rotating due to the slot when the gear 6 rotates, thereby limiting the rotation of the limit plate.
[0025] Usage: When performing scoliosis correction surgery, when using correction forceps to clamp the spine, by holding the first clamp body 1 and the second clamp body 2, pinching the second clamp body 2, the second clamp body 2 is rotated relative to the first clamp body 1, and the second clamp body 2 drives the arc rack 17 to slide relative to the support shell 4 on the arc rod 3. At the same time, the arc rack 17 drives the gear 6 to rotate, and the rotation of the gear 6 drives the clockwork 7 to contract, and the gear 6 drives the limit block 14 to slide relative to the limit slot 13 in the annular limit slot 12. During the sliding process of the limit block 14 relative to the limit slot 13, it can drive the limit plate 11 to slide relative to the support shell 4, and the limit plate 1 1 drives the limiting opening 16 to slide relative to the second limiting block 15, which can prevent the limiting plate 11 from rotating relative to the supporting shell 4. The supporting shell 4 drives the support rod 9 to slide relative to the limiting column 5, and at the same time drives the first limiting block 8 to compress the spring 10. The elastic force generated by the spring 10 can make the limiting card slot 13 and the limiting card block 14 always in a state of being stuck to each other. The inclined surface on the limiting card slot 13 and the inclined surface on the limiting card block 14 can facilitate the relative sliding of the limiting card slot 13 and the second card opening, so that the first clamp body 1 and the second clamp body 2 can be clamped stably, and there is no need for manual hands to always hold the first clamp body 1 and the second clamp body 2 tightly, thereby reducing the fatigue of manual clamping for too long.
[0026] When disassembling, it is only necessary to press the first limit block 8, the first limit block 8 compresses the spring 10, and the first limit block 8 drives the support rod 9 to limit the column 5 to slide, thereby driving the limit plate 11 to slide, so that the limit slot 13 is not stuck and the block is allowed to rotate under the action of the elastic force of the spring 7, and the gear 6 drives the arc rack 17 to slide relative to the support, so that the first clamp body 1 and the second clamp body 2 loosen the spine.
[0027] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.
Claims
1. A pliers for correcting scoliosis, comprising a first pliers body (1), characterized in that: One end of the first clamp body (1) is rotatably connected to the second clamp body (2), one end of the first clamp body (1) and the second clamp body (2) are both provided with a clamp head (18), an end of the first clamp body (1) away from the corresponding clamp head (18) is provided with an arc rod (3), a free end of the arc rod (3) is provided with a support shell (4), one end of the support shell (4) is slidably connected to a limit plate (11), an end of the support shell (4) away from the limit plate (11) is provided with a limit column (5), the support shell (4) is rotatably connected to a gear (6) rotatably connected to the limit column (5), a spring (7) is provided inside the gear (6), one end of the spring (7) is connected to the gear (6), and one end of the spring (7) is connected to the limit column (5); The limiting plate (11) is provided with an annular limiting groove (12) at one end close to the gear (6), and a plurality of limiting card grooves (13) are provided inside the annular limiting groove (12) at equal intervals. The gear (6) is provided with a plurality of limiting card blocks (14) slidably connected to the annular limiting groove (12) and slidably connected to each limiting card groove (13) at one end close to the limiting plate (11). The limiting plate (11) is provided with a support rod (9) slidably connected to the limiting column (5) at one end close to the limiting column (5), and a first limiting block (8) is provided at one end of the support rod (9) away from the limiting plate (11). A spring (10) is provided on the outer side of the support rod (9) between the first limiting block (8) and the supporting shell (4), and an arc-shaped rack (17) slidably connected to the supporting shell (4) and meshing with the gear (6) is provided at one end of the second clamp body (2) close to the supporting shell (4).
2. The scoliosis correction forceps according to claim 1, characterized in that: Each limiting card slot (13) is provided with an inclined surface that is cut from top to bottom, and each limiting card block (14) is provided with an inclined surface that is cut from bottom to top.
3. The scoliosis correction forceps according to claim 1, characterized in that: A plurality of second limit blocks (15) are arranged at equal intervals at the lower end of the support shell (4), and the limit plate (11) is provided with limit openings (16) corresponding one-to-one to the second limit blocks (15) and slidably connected thereto.