A new type of wrist joint external fixation support

Abstract

The utility model discloses a novel wrist joint external fixing support relates to wrist joint external fixing support technical field, including connecting rod no.

Description

Technical Field

[0001] This utility model relates to the field of external fixation braces for wrist joints, specifically a novel external fixation brace for wrist joints. Background Technology

[0002] External fixation devices for the wrist are used to stabilize wrist fractures, dislocations, or severe soft tissue injuries. They mechanically stabilize the wrist joint using an external frame made of metal or carbon fiber and steel pins inserted into the bone, preventing displacement and promoting healing. Their core value lies in stabilizing the bones and promoting healing, but close patient cooperation and follow-up are essential.

[0003] Current wrist joint external fixators on the market have limited functionality and cannot meet the needs of some surgeries, causing many problems for clinicians during surgery, affecting surgical quality and outcomes, and hindering their applicability. To address these issues, we have developed a new type of wrist joint external fixator. Utility Model Content

[0004] The purpose of this invention is to provide a novel external fixation brace for the wrist joint to solve the problems mentioned in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel wrist joint external fixation bracket, comprising a connecting rod, a handwheel, a mounting sleeve, a pin, a hexagon socket head cap screw, a hexagon socket head cap screw, and a hexagon socket head cap screw. The outer circumferential surface of the connecting rod is threadedly connected to the inner wall of the handwheel. The handwheel is engaged in a U-shaped groove in a steering block. The hexagon socket head cap screw is installed in a hole in the steering block through the connecting rod. The steering block is connected to the connecting block through the hexagon socket head cap screw, and the connecting block is connected to the connecting block through the hexagon socket head cap screw. The tight fit between the components allows the fixation bracket to rotate flexibly, thereby improving its applicability.

[0006] Preferably, a rotating shaft is inserted into the circular hole above the second connecting block. The rotating shaft is designed to remain stable due to the constraint from the second connecting block.

[0007] Preferably, the threaded hole at the center of the rotating shaft is connected to a set screw, which ensures the stability of the second steering block.

[0008] Preferably, the circular hole below the second connecting block is connected to the second steering block by a rivet. The second steering block can drive the second connecting rod to turn.

[0009] Preferably, the steering block two is connected to the connecting rod two by a pin, and the connecting rod two is inserted into the steering block two, so that the steering block two can ensure the stability of the connecting rod two.

[0010] Preferably, a mounting sleeve is fitted onto the outer circumferential surface of the connecting rod, and a steel needle is fixedly connected to the outer circumferential surface of the mounting sleeve. The steel needle is designed to penetrate the skin and pierce into the bone.

[0011] Preferably, the placement sleeve is threadedly connected to the locking bolt, and one end of the locking bolt contacts the outer circumferential surface of the first connecting rod. The first connecting rod and the second connecting rod have the same function. The outer surface of the first connecting rod can be fitted with the placement sleeve according to the actual situation of the patient. The number of placement sleeves can be changed according to the actual situation.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This application, through the arrangement of connecting rod one, handwheel, internal hex bolt one, steering block one, connecting block one, connecting block two, set screw, rotating shaft, steering block two, pin, connecting rod two, rivet, internal hex bolt two, and internal hex bolt three, enables the fixed bracket to have a flexible steering effect, allowing for the selection of a suitable angle adjustment scheme according to the patient's actual situation, and the structure of the component assembly is stable, thereby improving the scope of application.

[0014] 2. By incorporating a sleeve, steel needle, and locking bolt, this application effectively facilitates the installation and removal of steel needles, saving doctors time required to remove them and improving their work efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall planar structure of this utility model;

[0016] Figure 2 This is a top view of the overall planar structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the planar structure of the connecting rod of this utility model;

[0018] Figure 4 This is a schematic diagram of the planar structure of the handwheel of this utility model;

[0019] Figure 5 This is a schematic diagram of the planar structure of the steering block of this utility model;

[0020] Figure 6 This is a schematic diagram of the planar structure of the connecting block one of this utility model;

[0021] Figure 7 This is a schematic diagram of the planar structure of the connecting block two of this utility model;

[0022] Figure 8 This is a schematic diagram of the planar structure of the rotating shaft of this utility model;

[0023] Figure 9This is a schematic diagram of the planar structure of the steering block 2 of this utility model.

[0024] The following are the labels in the diagram: 1. Connecting rod one; 2. Handwheel; 3. Socket headstock bolt one; 4. Steering block one; 5. Connecting block one; 6. Connecting block two; 7. Set screw; 8. Rotating shaft; 9. Steering block two; 10. Pin; 11. Connecting rod two; 12. Rivet; 13. Mounting sleeve; 14. Steel needle; 15. Locking bolt; 16. Socket headstock bolt two; 17. Socket headstock bolt three. Detailed Implementation

[0025] 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.

[0026] like Figures 1-9 As shown, this utility model provides a technical solution for a novel external fixation brace for the wrist joint, including a connecting rod 1, a handwheel 2, a mounting sleeve 13, a pin 10, a hexagon socket head cap screw 3, a hexagon socket head cap screw 2 16, and a hexagon socket head cap screw 3 17. The mounting sleeve 13 is fitted onto the outer circumferential surface of the connecting rod 1. The connection between the connecting rod 1 and the mounting sleeve 13 ensures that the mounting sleeve 13 can slide freely on the connecting rod 1, ensuring its flexibility.

[0027] The mounting sleeve 13 is threadedly connected to the locking bolt 15. One end of the locking bolt 15 contacts the outer circumferential surface of the connecting rod 1. With the tight fit between the mounting sleeve 13 and the locking bolt 15, the friction between the locking bolt 15 and the connecting rod 1 can be increased, thereby ensuring that the mounting sleeve 13 can be stably positioned outside the connecting rod 1 and will not move arbitrarily.

[0028] A steel needle 14 is fixedly connected to the outer circumference of the sleeve 13. The sleeve 13 and the steel needle 14 maintain a linkage effect. The steel needle 14 can penetrate the bone percutaneously and anchor the two ends of the fracture, providing an effective function for wrist joint bone repair.

[0029] The outer circumferential surface of connecting rod 1 is threaded to the inner wall of handwheel 2, and connecting rod 1 and handwheel 2 maintain a linkage effect. The threaded connection facilitates disassembly and assembly. Handwheel 2 is engaged in the U-shaped groove of steering block 4. Steering block 4 supports handwheel 2 and provides a control effect, allowing handwheel 2 to rotate freely but not move axially.

[0030] The hex socket head cap screw 3 is installed in the hole of the steering block 4 through the connecting rod 1. The hex socket head cap screw 3 controls the position of the connecting rod 1. When the handwheel 2 is rotated, the threaded part of the connecting rod 1 slides in the hole of the steering block 4, achieving the purpose of extension and retraction of the connecting rod 1. At this time, the hex socket head cap screw 3 will slide in the long groove of the steering block 4 to prevent the connecting rod 1 from rotating during the extension and retraction process.

[0031] Steering block 14 is connected to connecting block 15 via hex bolt 216. The tight fit between steering block 14, hex bolt 216 and connecting block 15 allows steering block 14 to rotate ±45° around hex bolt 216 as an axis. Tightening hex bolt 216 can lock steering block 14.

[0032] Connecting block 15 is connected to connecting block 26 via socket head cap screw 317. The tight fit between connecting block 15, socket head cap screw 317 and connecting block 26 allows connecting block 15 to rotate ±45° around socket head cap screw 317 as the axis. Tightening socket head cap screw 317 can achieve the effect of locking connecting block 15.

[0033] The circular hole below the connecting block 2 6 is connected to the steering block 2 9 via the rivet 12. The cooperation between the connecting block 2 6, the rivet 12 and the steering block 2 9 allows the steering block 2 9 to rotate ±40° around the rivet 12 as the axis, ensuring the flexibility of the component.

[0034] Steering block 2 9 is connected to connecting rod 2 11 by pin 10. Connecting rod 2 11 is inserted into steering block 2 9. Connecting rod 2 11 is inserted into steering block 2 9 to achieve a preliminary limiting effect. Then, using pin 10, connecting rod 2 11 can be stably placed in steering block 2 9 to maintain stability.

[0035] A rotating shaft 8 is inserted into the round hole above the connecting block 2 6. A set screw 7 is threaded into the threaded hole in the center of the rotating shaft 8. The rotating shaft 8 is restricted by the connecting block 2 6, so the rotating shaft 8 and the set screw 7 are tightly fitted. When the set screw 7 rotates, the set screw 7 itself will move, thereby pressing against the steering block 2 9, so that the steering block 2 9 remains fixed at a specified angle.

[0036] Working principle: During use, depending on the patient's specific wrist fracture condition, the placement sleeve 13, along with the steel needle 14 and locking bolt 15, can be manually pushed to slide on the connecting rod 1. Adjusting the insertion position of the steel needle 14 and tightening the locking bolt 15 fixes the placement sleeve 13 on the connecting rod 1. Then, manually turning the handwheel 2 causes it to rotate in place under the constraint of the steering block 4. At this time, the connecting rod 1 can only perform translational movement under the action of the hexagonal socket screw 3. Therefore, the rotation of the handwheel 2 drives the connecting rod 1 to translate, allowing it to extend and retract. Then, under the action of the hexagonal socket screw 16, the steering block... Connecting block 15 can rotate ±45°, ensuring the flexibility of the bracket. Tightening the hex bolt 317 allows connecting block 15 and connecting block 26 to connect, enabling connecting block 15 to rotate ±45° around hex bolt 317. Finally, pin 10 securely mounts connecting rod 21 into steering block 29. Steering block 29, via rivet 12, can rotate ±40°, and the set screw 7 ensures it remains fixed after movement. This design makes the bracket simple in structure, easy to use, portable, and suitable for a wide range of users, while also ensuring structural stability.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A novel external fixation brace for the wrist joint, comprising a connecting rod (1), a handwheel (2), a mounting sleeve (13), a pin (10), a hexagon socket head cap screw (3), a hexagon socket head cap screw (16), and a hexagon socket head cap screw (17), characterized in that: The outer circumferential surface of the connecting rod (1) is threaded to the inner wall of the handwheel (2). The handwheel (2) is engaged in the U-shaped groove of the steering block (4). The internal hex bolt (3) is installed in the hole of the steering block (4) through the connecting rod (1). The steering block (4) is connected to the connecting block (5) through the internal hex bolt (2) (16). The connecting block (5) is connected to the connecting block (6) through the internal hex bolt (3) (17).

2. A new type of wrist external fixator according to claim 1, characterized in that: A rotating shaft (8) is inserted into the round hole above the connecting block 2 (6).

3. A new type of wrist external fixator according to claim 2, characterized in that: The threaded hole at the center of the rotating shaft (8) is connected to a set screw (7).

4. A new type of wrist external fixator according to claim 1, characterized in that: The circular hole below the connecting block 2 (6) is connected to the steering block 2 (9) by a rivet (12).

5. A new type of wrist external fixator according to claim 4, characterized in that: The steering block 2 (9) is connected to the connecting rod 2 (11) by a pin (10), and the connecting rod 2 (11) is inserted into the steering block 2 (9).

6. A new type of wrist external fixator according to claim 1, characterized in that: The outer circumferential surface of the connecting rod (1) is fitted with a mounting sleeve (13), and a steel needle (14) is fixedly connected to the outer circumferential surface of the mounting sleeve (13).

7. A new type of wrist external fixator according to claim 6, characterized in that: The mounting sleeve (13) is threadedly connected to the locking bolt (15), and one end of the locking bolt (15) is in contact with the outer circumferential surface of the connecting rod (1).

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