Wrist fixing brace

Abstract

An external fixing brace for wrist ulnar distal end joint ligament injury and ulnar distal end joint separation is characterized in that a back side module 1 (1), a back side module 2 (2) and a palmar side module (3) are connected in series through a nylon wire (5) through a wire passing hole (13) to form an annular surrounding brace surrounding a wrist joint, and tightness is adjusted, fixed and locked through a one-way locking compression bolt (4) on the palmar side module (3). And a lining soft cushion (6) is designed at the wrist joint attaching part to achieve the purpose of comfortable attaching.

Description

Technical Field

[0001] Orthopedic medical devices. Background Art

[0002] In orthopedic trauma, wrist joint loss is very common, among which distal radioulnar joint ligament injury and distal radioulnar joint separation occur from time to time. The fixation effect of sports wrist guard is relatively weak for the distal radioulnar joint. Therefore, a new type of external fixation brace is designed specifically for fixation and reduction of distal radioulnar joint ligament injury and distal radioulnar joint separation. Summary of the invention

[0003] Figure 1 It is an overall schematic diagram. Figure 2 It is a top view of the palm side module (3). Figure 3 It is a left view of the palm module (3). Figure 4 It is a schematic diagram of the back module 1 (1) and the back module 2 (2) from above. Figure 5 It is a longitudinal cross-sectional view of the fixing bolts (9) of the back module 1 (1) and the back module 2 (2). Figure 6 The left (right) view of the back module 1 (1) and the back module 2 (2). Figure 7 The figure is a schematic diagram of the one-way locking tooth (11) between the one-way locking pressure bolt (4) and the palm side module (3).

[0004] The dorsal module 1 (1), the dorsal module 2 (2), and the palmar module (3) are connected in series through the threading hole (13) using a nylon thread (5) to form a circular surrounding brace around the wrist joint. When passing through the dorsal module 1 (1) and the dorsal module 2 (2), the relative distance between the dorsal module 1 (1) and the dorsal module 2 (2) is adjusted appropriately according to the wrist circumference of different users. The nylon thread (5) passing through the dorsal module 1 (1) and the dorsal module 2 (2) is fixed using a fixing bolt (9) with a thread (10) on the dorsal module 1 (1) and the dorsal module 2 (2). (3), pass through the threading hole (13) and pass through the threading crack (12) designed for the one-way locking pressure bolt (4), the single nylon wire (5) is closed at both ends to form a loop, and the one-way locking pressure bolt (4) is installed from the palm side through the palm module (3), and the spring (7) is inserted into the one-way locking pressure bolt (4), and the knob (8) with a friction surface around and a thread (10) in the center is screwed in along the thread (10) at the end of the one-way locking pressure bolt (4), which plays a fixing role and serves as a rotating handle for the one-way locking pressure bolt (4). The one-way locking pressure bolt (4) and the palm module (3) are designed with one-way locking teeth (11) in a conical shape that are tightly engaged with each other. See for details Figure 7, so that it can pull the spring to rotate in a jump groove when rotating in one direction, and cannot rotate in the reverse direction due to the obstruction of the one-way locking tooth (11), thereby achieving a one-way locking effect. The knob (8) of the one-way locking pressure bolt (4) is pressed from the palm side to compress the spring (7), so that the one-way locking pressure bolt (4) moves toward the dorsal side, and the one-way locking teeth (11) that bite each other are completely disengaged, completing the reverse rotation and loosening the nylon line (5), completing the tightness adjustment and locking fixation. The part that fits the skin of the wrist joint is designed with an inner lining cushion (6) that surrounds the skin of the wrist joint to achieve the purpose of fitting comfort.

[0005] A detachable depth stopper of the knob (8) may be added to prevent the knob (8) from being pressed by mistake, causing the overall fixation to suddenly loosen.

[0006] The invention has the advantage of having a strong lateral closing force for the distal radioulnar joint, and is suitable for the reduction and fixation of distal radioulnar joint ligament injuries and distal radioulnar joint separations.

[0007] Each module can be made of high-strength polyethylene blocks, but is not limited to existing materials.

[0008] It can be designed in multiple sizes with equal proportions according to different groups of people, and can also be adjusted appropriately according to comfort.

Claims

1. A wrist joint external fixation brace, characterized in that it adopts a modular design, wherein the main body is composed of three modules: a dorsal module 1 (1), a dorsal module 2 (2), and a palmar module (3), and is fixed by a nylon wire (5) passing through an internal threading hole (13).

2. The unique design of the palmar module (3) is characterized in that a one-way locking pressure bolt (4) is designed on the palmar module (3), and a one-way locking tooth (11) in a conical shape that is tightly engaged with the one-way locking tooth (11) is provided, as shown in FIG. 7, which has a one-way rotation locking effect.

3. The unique design of the one-way locking pressure bolt (4) is characterized in that a thread passing slit (12) is designed thereon, and the nylon thread (5) passing therethrough can be wound and tightened when rotating. The palm side of the one-way locking pressure bolt (4) is sleeved with a spring (7), and the end is pressed with a knob (8) to fix it. The one-way rotation locking and releasing function is completed by rotation.

4. The unique design of the dorsal module 1 (1) and the dorsal module 2 (2) is characterized in that the dorsal module 1 (1) is mirror-symmetrical to the dorsal module 2 (2), and the threading hole (13) thereon is provided with a fixing bolt (9) which serves to fix the two dorsal modules so that the tightening force of the brace acts on the distal radioulnar joint.

5. The local details of the present invention are not limited to the design drawings, and can be slightly adjusted and produced according to actual usage. The production materials are not limited to a certain type. All those that conform to the structural design of the present invention are within the scope of protection of this patent right.

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