Leg bone reduction nail locking device

Abstract

The utility model relates to the technical field of medical equipment, and discloses a leg bone reduction nail locking device which comprises an arc-shaped plate, a mounting piece is arranged at the top of the arc-shaped plate, an adapter block is arranged at the top of the mounting piece, a rail rod is arranged on one side of the adapter block, a movable block is slidably connected to the outer surface of the rail rod, and the movable block is arranged on the outer surface of the arc-shaped plate. And one side of the moving block is fixedly connected with a positioning piece, and the inner wall of the positioning piece is slidably connected with a bone nail. According to the leg bone reduction nail locking device, through cooperative arrangement of the moving block, the positioning piece and the bone nail, the height and angle of the device can be flexibly adjusted according to leg bone shapes and reduction requirements of different patients, the stability and adaptability of the device are ensured, and therefore more accurate reduction of leg bones is achieved; damage to the moving block in the sliding process is reduced by adding the soft rubber mat, the positioning button is used for fixing the moving block after adjustment is completed, and the stability of the reduction process is ensured.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, specifically a leg bone reduction and locking device. Background Technology

[0002] The main function of orthopedic reduction and fixation devices is to firmly lock bone screws that have been inserted into the bone onto an orthopedic external fixator, ensuring stable and lasting fixation of the fracture site, preventing displacement of the fracture ends due to movement, helping to reduce pain, swelling, and inflammation at the fracture site, and providing a good environment for fracture healing. However, existing orthopedic reduction and fixation devices cannot flexibly adjust the angle. For fractures requiring precise alignment and reduction, the inability to adjust the angle of the device may increase the difficulty of the surgery. Surgeons need to operate within a limited space and angle range, leading to increased surgical time and risks. Therefore, a device with a flexibly adjustable angle is needed to better adapt to various complex fracture situations.

[0003] Chinese Patent Publication No. CN215458557U discloses an orthopedic reduction and fixation device, including a fixation device frame and a telescopic rod. The inner surface of the fixation device frame is movably connected to the outer surface of the telescopic rod. A fixing mechanism is fixedly connected to the top of the fixation device frame. A fixing mechanism is fixedly connected to one end of the bottom surface of both the telescopic rod and the fixing mechanism. The fixing mechanism includes a fixing leg, the top of which is fixedly connected to the bottom surface of the fixation device frame. This invention utilizes the cooperation of a handle and a gear to rotate a gear and a threaded rod. Then, the cooperation of the threaded rod and a baffle causes the baffle and suction cup to descend in the suction cup box. The suction cup is then fixed by contacting the plane. This avoids the problem that most locking devices require the doctor to hold them by hand, which not only has poor stability but also easily leads to bone screw misalignment, resulting in reduced equipment efficiency and practicality. This invention improves the efficiency and practicality of the device.

[0004] However, this utility model has the following problems in actual use:

[0005] In actual use, the angle of the locking device of this utility model is not adjustable, which makes it unable to fit tightly to the fracture site, thus affecting the stability of the fixation. Furthermore, doctors need to spend more time and effort to find a suitable fixation position during the operation, which increases the difficulty of the operation, prolongs the operation time, and increases the surgical risk for the patient. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To overcome the aforementioned shortcomings of the prior art, this utility model provides a leg bone reduction and locking device, which solves the problems in the prior art:

[0008] In practical use, the angle of the locking device of this utility model is not adjustable, which makes it unable to fit tightly to the fracture site, thus affecting the stability of the fixation. Furthermore, doctors need to spend more time and effort to find a suitable fixation position during the operation, which increases the difficulty of the operation, prolongs the operation time, and increases the surgical risks for patients.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, this utility model is implemented through the following technical solution: a leg bone realignment nailing device, comprising an arc-shaped plate, an mounting plate at the top of the arc-shaped plate, a transition block at the top of the mounting plate, a track rod on one side of the transition block, a movable block slidably connected to the outer surface of the track rod, a positioning element fixedly connected to one side of the movable block, and a bone nail slidably connected to the inner wall of the positioning element.

[0011] According to one embodiment of the present invention, a friction pad is fixedly installed on the inner wall of the arc-shaped plate, and an mounting plate is fixedly connected to the top of the arc-shaped plate.

[0012] According to one embodiment of the present invention, a telescopic rod is fixedly connected to the bottom of the mounting plate, an adjustment knob is threadedly connected to one side of the telescopic rod, and the bottom of the telescopic rod is threadedly connected to the top of the mounting plate.

[0013] According to one embodiment of the present invention, a stabilizing plate is fixedly connected to the bottom of one side of the adapter block, and a plug is fixedly connected to the other side of the adapter block. The bottom of the stabilizing plate is threadedly connected to the top of the mounting plate.

[0014] According to one embodiment of the present invention, limiting plates are fixedly connected to both ends of the outer surface of the track rod, and docking holes are provided at both ends of the track rod, with the inner wall of the docking hole being inserted into the inner wall of the plug connector.

[0015] According to one embodiment of the present invention, soft rubber pads are fixedly installed at both ends of the movable block, and a positioning button is threadedly connected to the top of the movable block.

[0016] According to one embodiment of the present invention, the outer surface of the positioning member is threaded with a screw, and one end of the screw is fixedly connected with an anti-slip plate.

[0017] According to one embodiment of the present invention, an anti-dislodgement piece is fixedly connected to the top of the bone nail, and a lifting ring is fixedly connected to the top of the anti-dislodgement piece.

[0018] (III) Beneficial Effects

[0019] This utility model provides a leg bone reduction and locking device, which has the following beneficial effects:

[0020] This leg bone reduction and fixing device, through the coordinated arrangement of a moving block, a positioning component, and bone screws, allows for flexible adjustment of height and angle according to the leg bone shape and reduction needs of different patients. This ensures the stability and adaptability of the device, enabling more precise reduction of the leg bone. The addition of soft rubber pads reduces damage to the moving block during sliding, while the positioning button is used to fix the moving block after adjustment, ensuring stability during the reduction process. The design of the screw and anti-slip plate allows medical personnel to easily adjust and fix the position of the bone screws, while the lifting ring facilitates the removal and lifting of the bone screws. The arc-shaped plate ensures that the device fits snugly against the patient's leg, and the friction pad further enhances the friction between the device and the patient's leg, effectively preventing the device from slipping or moving during the reduction process. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the adapter block structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the track rod structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the movable block structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the bone nail structure of this utility model.

[0026] In the diagram: 1. Arc-shaped plate; 2. Mounting plate; 3. Adapter block; 4. Track rod; 5. Moving block; 6. Positioning component; 7. Bone nail; 8. Friction pad; 9. Mounting plate; 10. Telescopic rod; 11. Adjustment knob; 12. Stabilizing plate; 13. Connector; 14. Limiting plate; 15. Docking hole; 16. Soft rubber pad; 17. Positioning button; 18. Screw; 19. Anti-slip plate; 20. Anti-detachment plate; 21. Lifting ring. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0028] Example 1:

[0029] Please see Figure 1 and Figure 2 To improve the flexibility and stability of the device, an arc-shaped plate 1 and a mounting plate 2 are provided;

[0030] The device includes an arc-shaped plate 1, with a mounting plate 2 on its top. A friction pad 8 is fixedly mounted on the inner wall of the arc-shaped plate 1. A mounting plate 9 is fixedly connected to the top of the arc-shaped plate 1. A telescopic rod 10 is fixedly connected to the bottom of the mounting plate 2. An adjustment knob 11 is threadedly connected to one side of the telescopic rod 10. The bottom of the telescopic rod 10 is threadedly connected to the top of the mounting plate 9. Therefore, the friction pad 8 is used to increase the friction force of the device on the patient's leg when the arc-shaped plate 1 is pressed against the patient's leg. The mounting plate 9 is used to fix the telescopic rod 10 and the arc-shaped plate 1 to ensure the stability of the entire device. The telescopic rod 10 allows the track rod 4 to be adjusted up and down within a certain range to adapt to different leg bone shapes and restoration needs of patients. The adjustment knob 11 is used to adjust the length of the telescopic rod 10, thereby realizing the height adjustment of the track rod 4.

[0031] Example 2:

[0032] Please see Figure 3 In order to facilitate the movement and adjustment of the position during use, a transition block 3 and a track rod 4 are provided;

[0033] The mounting plate 2 has a top adapter block 3, a track rod 4 on one side, a stabilizing plate 12 fixedly connected to the bottom of one side of the adapter block 3, and a connector 13 fixedly connected to the other side of the adapter block 3. The bottom of the stabilizing plate 12 is threadedly connected to the top of the mounting plate 2. Limiting plates 14 are fixedly connected to both ends of the outer surface of the track rod 4. Both ends of the track rod 4 have mating holes 15. The inner wall of the mating hole 15 is inserted into the inner wall of the connector 13. Therefore, the stabilizing plate 12 is used to ensure the stability of the adapter block 3, the connector 13 is used to connect the track rod 4 to the adapter block 3 to ensure that the track rod 4 can be stably installed on the adapter block 3, the limiting plate 14 is used to limit the displacement distance of the moving block 5 to prevent the moving block 5 from excessively displacing to both sides, and the mating hole 15 is used to connect the track rod 4 to the connector 13 to ensure that the track rod 4 can be stably installed on the adapter block 3.

[0034] Example 3:

[0035] Please see Figure 4 and Figure 5 In order to allow for flexible adjustment of the position and angle of the device when using it, a moving block 5, a positioning element 6, and a bone nail 7 are provided.

[0036] A movable block 5 is slidably connected to the outer surface of the track rod 4. A positioning element 6 is fixedly connected to one side of the movable block 5. A bone nail 7 is slidably connected to the inner wall of the positioning element 6. Soft rubber pads 16 are fixedly installed at both ends of the movable block 5. A positioning button 17 is threadedly connected to the top of the movable block 5. A screw 18 is threadedly connected to the outer surface of the positioning element 6. An anti-slip plate 19 is fixedly connected to one end of the screw 18. An anti-detachment plate 20 is fixedly connected to the top of the bone nail 7. A lifting ring 21 is fixedly connected to the top of the anti-detachment plate 20. Therefore, the soft rubber pad 16 is used to reduce the friction between the movable block 5 and the limiter during the sliding process. Damage caused by impact to piece 14; positioning button 17 is used to fix moving block 5 after the angle and position of moving block 5 are adjusted by turning positioning button 17; screw 18 is used to fix the position of bone nail 7 by rotating anti-slip plate 19 after the bone nail 7 is adjusted up and down by sliding anti-slip plate 19; anti-slip plate 19 is used to increase the friction force when medical staff rotate it; anti-dislodgement plate 20 is used to ensure that bone nail 7 will not fall off from positioning piece 6 when it is adjusted down by sliding; lifting ring 21 is used to facilitate lifting bone nail 7 during disassembly.

[0037] In this invention, the working steps of the device are as follows:

[0038] First, place the arc-shaped plate 1 on the patient's leg. Use the friction pad 8 on the inner wall of the arc-shaped plate 1 to increase the friction with the patient's leg and ensure stable fixation. Adjust the length of the telescopic rod 10 by adjusting the knob 11, so that the telescopic rod 10 drives the track rod 4 to move up and down to adjust to the appropriate position. Then, slide the moving block 5 to adjust the left and right position of the bone nail 7, and swing the moving block 5 back and forth to adjust the insertion angle of the bone nail 7. Tighten the positioning knob 17 to fix the moving block 5 in the required position for subsequent bone nail 7 positioning operations. After adjusting the insertion length of the bone nail 7 by sliding, rotate the anti-slip plate 19 to drive the screw 18 to fix the position of the bone nail 7. Finally, when it is necessary to disassemble the device, rotate the anti-slip plate 19 to drive the screw 18 to loosen the bone nail 7, and pull out the bone nail 7 by lifting the lifting ring 21.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A leg bone reduction locking device, comprising an arc-shaped plate (1), characterized in that: The top of the arc plate (1) is provided with a mounting plate (2), the top of the mounting plate (2) is provided with a transition block (3), a track rod (4) is provided on one side of the transition block (3), a moving block (5) is slidably connected to the outer surface of the track rod (4), a positioning component (6) is fixedly connected to one side of the moving block (5), and a bone nail (7) is slidably connected to the inner wall of the positioning component (6).

2. The leg bone reduction locking device according to claim 1, characterized in that: A friction pad (8) is fixedly installed on the inner wall of the arc plate (1), and an mounting plate (9) is fixedly connected to the top of the arc plate (1).

3. The leg bone reduction locking device according to claim 2, characterized in that: The bottom of the mounting plate (2) is fixedly connected to a telescopic rod (10), and an adjustment knob (11) is threadedly connected to one side of the telescopic rod (10). The bottom of the telescopic rod (10) is threadedly connected to the top of the mounting plate (9).

4. The leg bone reduction locking device according to claim 1, characterized in that: A stabilizing plate (12) is fixedly connected to one side of the bottom of the adapter block (3), and a plug (13) is fixedly connected to the other side of the adapter block (3). The bottom of the stabilizing plate (12) is threadedly connected to the top of the mounting plate (2).

5. A leg bone reduction locking device according to claim 4, characterized in that: Limiting plates (14) are fixedly connected to both ends of the outer surface of the track rod (4). Both ends of the track rod (4) are provided with docking holes (15), and the inner wall of the docking hole (15) is inserted into the inner wall of the plug (13).

6. The leg bone reduction locking device according to claim 1, characterized in that: Both ends of the movable block (5) are fixedly installed with soft rubber pads (16), and the top of the movable block (5) is threaded with a positioning button (17).

7. The leg bone reduction locking device according to claim 1, characterized in that: The outer surface of the positioning component (6) is threaded with a screw (18), and one end of the screw (18) is fixedly connected with an anti-slip plate (19).

8. The leg bone reduction locking device according to claim 1, characterized in that: The top of the bone nail (7) is fixedly connected to an anti-dislodgement piece (20), and the top of the anti-dislodgement piece (20) is fixedly connected to a lifting ring (21).

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