Orthopedic bone plate fixator

Abstract

The application provides an orthopedic bone plate fixator, which comprises a fixing clamp, a steel plate clamping piece and a fixing clamp, wherein the fixing clamp comprises a first clamp arm and a second clamp arm which are symmetrical to each other and are connected through a rotating shaft, and the head end and the tail end of the first clamp arm and the second clamp arm are integrally provided with a clamp head and a handle respectively; the steel plate clamping piece comprises a mounting seat connected through a first fixing rod at one end of the rotating shaft, an adjusting screw rod vertically arranged and connected through screw threads in the middle of the mounting seat, clamping rods hingedly connected at the lower end of the mounting seat on both sides respectively, a connecting seat rotatably connected at the lower end of the adjusting screw rod, and connecting rods hingedly connected at the lower end of the connecting seat on both sides respectively, the other end of the connecting rod is hingedly connected with the inner side wall of the clamping rod on the same side, and the lower end of the adjusting screw rod is rotatably connected with the middle of the connecting seat. The application can automatically position the steel plate at the central position of the bone surface, does not need to rely on experience to press the steel plate fixing position, greatly improves the accuracy of the steel plate positioning, saves the operation time, improves the fixing effect of the steel plate, has strong practicability, is flexible to use, and saves medical resources.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an orthopedic bone plate fixator. Background Technology

[0002] Orthopedics is one of the most common departments in major hospitals, primarily studying the anatomy, physiology, and pathology of the musculoskeletal system. It utilizes medication, surgery, and physical therapy to maintain and develop the normal morphology and function of this system. With changes in the times and society, the spectrum of orthopedic injuries and diseases has changed significantly. For example, diseases such as bone and joint tuberculosis, osteomyelitis, and polio have decreased significantly, while injuries caused by traffic accidents have increased significantly. Bone plates are perforated, plate-like internal fixation devices for fractures. Clinically, they are often used in conjunction with bone screws or bone wires; the most common type of bone plate is long and narrow.

[0003] The trend towards minimally invasive orthopedics is evident, with small incisions and MIPO techniques offering limited exposure. Currently, there are no instruments to reliably control the centered position of the plate; the mainstream approach relies on experience to expose the bone surface and apply pressure to reveal the plate's fixation position. If fluoroscopy reveals that the plate is misaligned, stress cannot be distributed, and screws cannot be inserted into some holes, requiring rework and refixation of the plate, significantly increasing surgical time and the risk of tourniquet complications. Multiple drilling increases the risk of bone refracture and reduces the effectiveness of plate fixation.

[0004] In summary, there is an urgent need to design an orthopedic bone plate fixator that overcomes the above-mentioned problems. Summary of the Invention

[0005] The purpose of this invention is to provide an orthopedic bone plate fixator that overcomes the above-mentioned problems.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: an orthopedic bone plate fixator, comprising: The clamp includes a first clamp arm and a second clamp arm that are symmetrical to each other and rotatably connected by a pivot. The head and tail ends of the first clamp arm and the second clamp arm are respectively integrally formed with a clamp head and a handle. A steel plate clamping component includes a mounting base connected to one end of a rotating shaft via a first fixing rod, an adjusting screw vertically inserted and threadedly connected to the middle of the mounting base, clamping rods respectively hinged to both sides of the lower end of the mounting base, a connecting base rotatably connected to the lower end of the adjusting screw, and connecting rods respectively hinged to both sides of the lower end of the connecting base. The other end of the connecting rod is hinged to the inner wall of the clamping rod on its side, and the lower end of the adjusting screw is rotatably connected to the middle of the connecting base. One end of the first fixing rod is fixedly connected to one end of the rotating shaft, and the other end of the first fixing rod is fixedly connected to the middle of the front or rear side wall of the mounting base. The mounting base also has a first threaded hole in the middle that matches the adjusting screw.

[0007] The objectives of this invention and the technical problems it addresses can be further achieved by the following technical measures.

[0008] Furthermore, the clamping rod is a telescopic rod, which includes a second fixed rod hinged to the mounting base and a movable rod slidably disposed inside the lower end of the second fixed rod, and the lower end of the connecting rod is hinged to the inner side wall of the second fixed rod; The lower end of the second fixed rod has a sliding hole, and the movable rod is slidably disposed in the sliding hole by a slider. The bottom wall of the second fixed rod has a hole for the movable rod to slide out, and a fastening bolt is threaded through and connected to the outer wall of the lower end of the second fixed rod.

[0009] Furthermore, the lower ends of the two movable rods are respectively provided with first anti-slip textures on their opposite sidewalls.

[0010] Furthermore, the bottom wall of the movable rod is provided with a first serration.

[0011] Furthermore, the bottom wall of the pliers head is provided with second serrations.

[0012] Furthermore, the opposite sidewalls of the two clamp heads are respectively provided with a second anti-slip texture.

[0013] Furthermore, a compression spring is fixedly connected between the first clamp arm and the second clamp arm.

[0014] Furthermore, the two ends of the first fixing rod are detachably connected to the rotating shaft and the mounting base, respectively.

[0015] Furthermore, the shaft has a second threaded hole at its center, and the mounting base has a third threaded hole in the middle of its front or rear sidewall. The first fixing rod is a fixing bolt, which can pass through the second threaded hole and the third threaded hole in sequence to detachably install the fixing clamp on the mounting base.

[0016] The orthopedic bone plate fixator of the present invention features a fixation clamp with a steel plate clamping component consisting of a mounting base, adjusting screw, clamping rod, and connecting rod at one end of the clamp's rotating shaft. This allows the two clamping arms of the clamp to open and clamp the two clamping heads onto both sides of the bone surface. The two clamping rods on the steel plate clamping component then hold the steel plate in place on the bone surface, effectively fixing the plate's position. The two clamping arms rotate symmetrically relative to the rotating shaft, which is fixed to the center of the mounting base by the first fixing rod. When the adjusting rod is used to clamp the steel plate, the centerline of the steel plate is parallel to the centerline of the rotating shaft, allowing the steel plate to be automatically positioned centered on the bone surface. This eliminates the need for experience-based pressure to fix the plate, significantly improving the accuracy of plate positioning, saving surgical time, and enhancing the fixation effect.

[0017] The orthopedic bone plate fixator of the present invention features a telescopic clamping rod, which allows for adjustment of the length of the clamping rod according to the rotation angle of the fixation clamp. This enables the clamping rod to effectively clamp the steel plate at any angle of the fixation clamp, increasing the clamping force of the clamping rod on the steel plate and enhancing the practicality of the device.

[0018] The orthopedic bone plate fixator of the present invention increases the friction between the contact surfaces by providing a second anti-slip texture and a first anti-slip texture on the inner wall of the clamp head and the inner wall of the clamping rod, respectively, and providing a second serration and a first serration on the lower end of the clamp head and the clamping rod, respectively. This can prevent the clamp head and the clamping rod from sliding on the steel plate and bone surface, and greatly improve the fixation effect of the device on the steel plate.

[0019] The orthopedic bone plate fixator of the present invention, by setting the first fixing rod as a fixing bolt, detachably connects the rotating shaft and the mounting base through the fixing bolt, which makes the device more flexible in use. When the fixing clamp and the steel plate fixation component are used together, the position of the steel plate can be fixed and used to fix the orthopedic bone plate. When the two are separated, they can be used as fixing clamps and dispersing devices, etc., respectively, greatly improving the practicality of the device, making it flexible in use and saving medical resources. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the orthopedic bone plate fixator provided by the present invention; Figure 2 This is a schematic cross-sectional view of the connection between the second fixed rod and the movable rod in an embodiment of the present invention; Figure 3 yes Figure 1 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the overall structure of the fixing clamp in an embodiment of the present invention; Figure 5 This is a schematic diagram of the overall structure of the steel plate clamping component in an embodiment of the present invention; Explanation of reference numerals in the attached figures: Fixed clamps; 11. Rotary shaft; 111. Second threaded hole; 12. First clamp arm; 13. Second clamp arm; 14. Handle; 15. Clamp head; 151. Second serration; 152. Second anti-slip texture; 16. Compression spring; Steel plate clamping component; 21. Mounting base; 211. First threaded hole; 212. Third threaded hole; 22. Adjusting screw; 23. Clamping rod; 231. Second fixing rod; 2311. Sliding hole; 2312. Hole; 232. Movable rod; 2321. Sliding block; 2322. First anti-slip texture; 2323. First serration; 233. Fastening bolt; 24. Connecting seat; 25. Connecting rod; First fixed rod. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The descriptions of directions such as "left," "right," "front," "rear," "up," and "down" used below are defined relative to the accompanying drawings and do not represent the actual direction of use of the winding machine.

[0022] Please see Figures 1 to 5 An orthopedic bone plate fixator, comprising: The clamp 1 includes a first clamp arm 12 and a second clamp arm 13 that are symmetrical to each other and rotatably connected by a pivot 11. The head end and the tail end of the first clamp arm 12 and the second clamp arm 13 are respectively integrally formed with a clamp head 15 and a handle 14. The steel plate clamping component 2 includes a mounting base 21 connected to one end of the rotating shaft 11 via a first fixing rod 3, an adjusting screw 22 vertically inserted and threadedly connected to the middle of the mounting base 21, clamping rods 23 respectively hinged to both sides of the lower end of the mounting base 21, a connecting seat 24 rotatably connected to the lower end of the adjusting screw 22, and connecting rods 25 respectively hinged to both sides of the lower end of the connecting seat 24. The other end of the connecting rod 25 is hinged to the inner wall of the clamping rod 23 on its side. The lower end of the adjusting screw 22 is rotatably connected to the middle of the connecting seat 24. Twisting the adjusting screw 22 can move the connecting seat 24 up and down, thereby causing the two connecting rods 25 to push outward or pull inward simultaneously, thereby causing the two clamping rods 23 to move towards each other or away from each other, so as to clamp the steel plate or adjust its spacing. The center of the two clamping rods 23 coincides with the center line of the steel plate. One end of the first fixing rod 3 is fixedly connected to one end of the rotating shaft 11, and the other end of the first fixing rod 3 is fixedly connected to the middle of the front or rear side wall of the mounting base 21. The middle of the mounting base 21 is also provided with a first threaded hole 211 that matches the adjusting screw 22.

[0023] Specifically, when it is necessary to fix the position of the steel plate, the doctor can hold the two handles 14 with one hand to open the two clamp arms of the fixation clamp 1 and clamp the two clamp heads 15 on both sides of the bone surface. Then, by turning the adjusting screw 22 with the other hand, the two clamping rods 23 clamp the two sides of the steel plate, which can fix the position of the steel plate on the bone surface. The two clamp arms are symmetrically rotated and opened relative to the rotating shaft 11, and the rotating shaft 11 is fixed in the middle of the mounting base 21 by the first fixing rod 3. When the adjusting screw is used to make the clamping rods 23 clamp the steel plate, the center line of the steel plate is parallel to the center line of the rotating shaft 11, so the steel plate can be automatically positioned in the center of the bone surface without relying on experience to press the steel plate to fix its position.

[0024] like Figure 1 and Figure 2 As shown, the clamping rod 23 is a telescopic rod, which includes a second fixed rod 231 hinged to the mounting base 21 and a movable rod 232 slidably disposed inside the lower end of the second fixed rod 231. The lower end of the connecting rod 25 is hinged to the inner side wall of the second fixed rod 231. Making the clamping rod 23 a telescopic rod makes it easy to adjust the length of the clamping rod 23 according to the rotation and opening angle of the fixing clamp 1, so that the clamping rod 23 can effectively clamp the steel plate at any angle of the fixing clamp 1, which increases the clamping force of the clamping rod 23 on the steel plate and also increases the practicality of the device.

[0025] The lower end of the second fixed rod 231 has a sliding hole 2311. The movable rod 232 is slidably disposed in the sliding hole 2311 by a slider 2321. The bottom wall of the second fixed rod 231 has a hole 2312 for the movable rod 232 to slide out. A fastening bolt 233 is threaded through and connected to the outer wall of the lower end of the second fixed rod 231.

[0026] When the doctor clamps the clamp head 15 of the fixation clamp 1 on both sides of the bone surface, loosen the fastening bolt 233. Under the action of gravity, the movable rod 232 will always be in contact with the bone surface or the surface of the steel plate. Then, adjust the distance between the two clamping rods 23 by adjusting the adjusting screw 22 so that they are located on both sides of the steel plate. After tightening the fastening bolt 233 to fix the height of the clamping rods 23, tighten the adjusting screw 22 again to ensure that the two clamping rods 23 clamp the steel plate, thus completing the fixation of the steel plate.

[0027] Preferably, the lower ends of the two movable rods 232 are respectively provided with first anti-slip textures 2322 on their opposite sidewalls to increase the friction between the movable rods 232 and the steel plate and prevent slippage.

[0028] Preferably, the bottom wall of the movable rod 232 is provided with a first serration 2323 to increase the friction between the movable rod 232 and the bone surface, prevent the steel plate from sliding on the bone surface, and improve the stability of the clamping rod 23.

[0029] Preferably, the bottom wall of the pliers head 15 is provided with second serrations 151 to prevent the pliers head 15 from slipping on the bone surface.

[0030] Preferably, the opposite sidewalls of the two clamp heads 15 are provided with second anti-slip textures 152 to improve the stability of the clamp heads 15 on the bone surface.

[0031] Preferably, a compression spring 16 is fixedly connected between the first clamp arm 12 and the second clamp arm 13, which can make the two clamp arms open more smoothly and also make it easier for doctors to control the gripping force on the handle 14.

[0032] Preferably, the two ends of the first fixing rod 3 are detachably connected to the rotating shaft 11 and the mounting base 21, respectively, which makes the device more flexible to use and facilitates separate cleaning and disinfection.

[0033] Preferably, the shaft 11 has a second threaded hole 111 at its center, and the mounting base 21 has a third threaded hole 212 in the middle of its front or rear sidewall. The first fixing rod 3 is a fixing bolt that can pass through the second threaded hole 111 and the third threaded hole 212 in sequence to detachably mount the fixing clamp 1 onto the mounting base 21. When the fixing clamp 1 and the steel plate fixation component 2 are used together, they can fix the position of the steel plate and be used as a fixation for orthopedic bone plates. When the two are separated, they can be used as fixing clamps and spreading devices, respectively, greatly improving the practicality of the device, making it flexible to use and saving medical resources.

[0034] The present invention has been further described above with reference to the embodiments, but the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An orthopedic bone plate fixator, characterized in that, It includes: The fixed clamp (1) includes a first clamp arm (12) and a second clamp arm (13) that are symmetrical to each other and rotatably connected by a pivot (11). The head end and the tail end of the first clamp arm (12) and the second clamp arm (13) are respectively integrally formed with a clamp head (15) and a handle (14). The steel plate clamping component (2) includes a mounting base (21) connected to one end of the rotating shaft (11) via a first fixing rod (3), an adjusting screw (22) vertically inserted and threadedly connected to the middle of the mounting base (21), clamping rods (23) respectively hinged to both sides of the lower end of the mounting base (21), a connecting seat (24) rotatably connected to the lower end of the adjusting screw (22), and connecting rods (25) respectively hinged to both sides of the lower end of the connecting seat (24). The other end of the connecting rod (25) is hinged to the inner wall of the clamping rod (23) on its side, and the lower end of the adjusting screw (22) is rotatably connected to the middle of the connecting seat (24). One end of the first fixing rod (3) is fixedly connected to one end of the rotating shaft (11), and the other end of the first fixing rod (3) is fixedly connected to the middle of the front or rear side wall of the mounting base (21). The mounting base (21) is also provided with a first threaded hole (211) that matches the adjusting screw (22).

2. The orthopedic bone plate fixator according to claim 1, characterized in that: The clamping rod (23) is a telescopic rod, which includes a second fixed rod (231) hinged to the mounting base (21) and a movable rod (232) slidably disposed inside the lower end of the second fixed rod (231). The lower end of the connecting rod (25) is hinged to the inner wall of the second fixed rod (231). The lower end of the second fixed rod (231) is provided with a sliding hole (2311), the movable rod (232) is slidably disposed in the sliding hole (2311) by a slider (2321), and the bottom wall of the second fixed rod (231) is provided with a hole (2312) for the movable rod (232) to slide out. A fastening bolt (233) is threaded through and connected to the outer wall of the lower end of the second fixed rod (231).

3. The orthopedic bone plate fixator according to claim 2, characterized in that, The lower ends of the two movable rods (232) are respectively provided with first anti-slip texture (2322) on opposite sidewalls.

4. The orthopedic bone plate fixator according to claim 3, characterized in that, The bottom wall of the movable rod (232) is provided with a first serration (2323).

5. The orthopedic bone plate fixator according to claim 1 or 2, characterized in that, The bottom wall of the pliers (15) is provided with second serrations (151).

6. The orthopedic bone plate fixator according to claim 5, characterized in that, The two pliers (15) are provided with second anti-slip textures (152) on their opposite sidewalls.

7. The orthopedic bone plate fixator according to claim 1, characterized in that, A compression spring (16) is also fixedly connected between the first clamp arm (12) and the second clamp arm (13).

8. The orthopedic bone plate fixator according to claim 1, characterized in that, The two ends of the first fixing rod (3) are detachably connected to the rotating shaft (11) and the mounting base (21), respectively.

9. The orthopedic bone plate fixator according to claim 8, characterized in that, The shaft (11) has a second threaded hole (111) at its center, and the mounting base (21) has a third threaded hole (212) in the middle of its front or rear sidewall. The first fixing rod (3) is a fixing bolt that can pass through the second threaded hole (111) and the third threaded hole (212) in sequence to detachably install the fixing clamp (1) on the mounting base (21).

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