A forearm splint for bone injury care
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE THIRD AFFILIATED HOSPITAL OF HENAN UNIV OF TRADITIONAL CHINESE MEDICINE
- Filing Date
- 2025-04-02
- Publication Date
- 2026-06-30
AI Technical Summary
Existing forearm clamps cannot be adjusted according to the size differences between the two ends of the forearm, resulting in poor skin fit during clamping and inconvenience in use.
A forearm clamp was designed, comprising a cut-resistant braided layer, a covering strap, and elbow and wrist locking components. It achieves uniform clamping of forearms of different sizes through Velcro connection, tension adjustment seam, and locking knob adjustment, and is stably fixed by axial support components and auxiliary locking strips.
It improves the fit between the forearm clamp and the skin, achieving stable clamping of forearms of different sizes, and enhancing the stability and ease of use of bone injury rehabilitation.
Smart Images

Figure CN224421265U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically a forearm clamp for bone injury care. Background Technology
[0002] Orthopedics is one of the most common departments in major hospitals. It mainly studies the anatomy, physiology and pathology of the musculoskeletal system and uses drugs, surgery and physical methods to maintain and develop the normal shape and function of this system. Bone injuries require a long period of rehabilitation exercises to recover. In orthopedics, the common rehabilitation method for forearm bone injuries is to use a forearm splint to fix the injured forearm and prevent the bone injury from being difficult to heal when the forearm is in a mobile state, so as to facilitate bone injury rehabilitation.
[0003] Existing clamping devices for forearm injuries cannot be adjusted to accommodate the size differences between the two ends of the forearm, resulting in poor skin contact and inconvenience during clamping. Therefore, they do not meet current needs. To address this, we propose a forearm clamp for bone injury care. Utility Model Content
[0004] The purpose of this utility model is to provide a forearm clamp for bone injury care, in order to solve the problem mentioned in the background art that existing clamps for forearm bone injuries cannot be adjusted according to the size difference between the two ends of the forearm, resulting in poor skin contact during clamping and inconvenience.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a forearm splint for bone injury care, comprising a cut-resistant braided layer, a covering strap fixedly installed on the inner side of the cut-resistant braided layer, a tension adjustment slit provided on the surface of the cut-resistant braided layer and the covering strap, a closing strap installed on both sides of the tension adjustment slit, a plurality of axial support components installed on the inner side of the covering strap, an elbow locking component and a wrist locking component respectively installed between the upper and lower ends of the cut-resistant braided layer and the covering strap, both the elbow locking component and the wrist locking component including a tension adjustment box, and a locking knob installed in the middle of the tension adjustment box;
[0006] The elbow locking assembly also includes a first connecting wire slidably connected to one of the tension adjustment boxes, and a plurality of first auxiliary locking strips are installed on the outside of the first connecting wire. The wrist locking assembly also includes a second connecting wire slidably connected to another tension adjustment box, and a plurality of second auxiliary locking strips are installed on the outside of the second connecting wire.
[0007] Preferably, the plurality of axial support components are arranged circumferentially relative to the axis of the covering strip. Each axial support component includes a waterproof layer, a reinforcing layer is fixedly installed inside the waterproof layer, a plurality of alloy wires arranged in parallel are installed inside the reinforcing layer, a filling layer is filled between the plurality of alloy wires, and the breathable cotton layer is fixedly connected to the plurality of waterproof layers.
[0008] Preferably, the covering tape includes a nylon layer, an elastic layer is provided on the inner side of the nylon layer, a breathable cotton layer is provided on the inner side of the elastic layer, the breathable cotton layer is fixedly connected to multiple waterproof layers, and the nylon layer and the breathable cotton layer are fixedly connected through the elastic layer.
[0009] Preferably, the two closure straps are installed symmetrically relative to the tension adjustment seam, the cut-resistant braided layer is fixedly connected to the two closure straps, and the two closure straps are connected by Velcro.
[0010] Preferably, the elbow locking assembly is located at the elbow near the forearm, and the wrist locking assembly is located at the wrist near the forearm. The cross-sectional dimension of the cut-resistant braided layer near the elbow locking assembly is larger than that of the end of the cut-resistant braided layer near the wrist locking assembly. Both ends of the first connecting wire and the second connecting wire are inserted between the two tension adjustment boxes and the locking knob. The locking knob and the tension adjustment box are connected by threads. Both ends of the cut-resistant braided layer are fixedly connected to the two tension adjustment boxes.
[0011] Preferably, the plurality of first auxiliary locking strips and second auxiliary locking strips are arranged circumferentially relative to the axis of the cut-resistant braided layer. The upper ends of the plurality of first auxiliary locking strips are fitted onto the outside of the first connecting wire, and the lower ends of the plurality of second auxiliary locking strips are fitted onto the outside of the second connecting wire. The lower ends of the plurality of first auxiliary locking strips and the upper ends of the second auxiliary locking strips are fixedly connected to the surface of the cut-resistant braided layer. The installation directions of the first auxiliary locking strips and the second auxiliary locking strips are opposite, and the plurality of first auxiliary locking strips and the second auxiliary locking strips are arranged alternately on the surface of the cut-resistant braided layer.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This invention uses Velcro to seal the tension adjustment seam between two connecting straps, facilitating ventilation and condition checks of the forearm skin through the seam. The cut-resistant braided layer and wrapping strap, along with multiple axial support components, wrap around the outside of the forearm. By pulling and rotating the first and second connecting wires and the locking knob, the first and second connecting wires are locked to the two tension adjustment boxes. This allows the first and second connecting wires to swing and adjust multiple first and second auxiliary locking strips relative to the cut-resistant braided layer. The first and second auxiliary locking strips are installed in opposite directions, allowing adjustment of the cross-sectional dimensions at both ends of the cut-resistant braided layer. This enables the cut-resistant braided layer and wrapping strap, through multiple circumferentially arranged axial support components, to uniformly clamp forearms of different sizes, improving the stability of the forearm after bone injury. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a cross-sectional structural diagram of the entire utility model;
[0016] Figure 3 This is a schematic diagram of the installation structure of the covering tape of this utility model;
[0017] Figure 4 This is a partial cross-sectional structural diagram of the axial support component of this utility model.
[0018] In the diagram: 1. Cut-resistant braided layer; 2. Closing strap; 3. Elbow locking assembly; 301. Tension adjustment box; 302. Locking knob; 303. First connecting wire; 304. First auxiliary locking strip; 4. Wrist locking assembly; 401. Second connecting wire; 402. Second auxiliary locking strip; 5. Covering strap; 501. Nylon layer; 502. Elastic layer; 503. Breathable cotton layer; 6. Axial support assembly; 601. Waterproof layer; 602. Reinforcing layer; 603. Filling layer; 604. Alloy wire; 7. Tension adjustment seam. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] Please see Figure 1 and Figure 3One embodiment of this utility model is a forearm splint for bone injury care, including a cut-resistant braided layer 1. The surface of the cut-resistant braided layer 1 and the covering strip 5 is provided with an elastic adjustment seam 7. Two closing straps 2 are installed on both sides of the elastic adjustment seam 7. The two closing straps 2 are installed symmetrically with respect to the elastic adjustment seam 7. The cut-resistant braided layer 1 is fixedly connected to the two closing straps 2. The two closing straps 2 are connected by Velcro, which facilitates ventilation and condition inspection of the forearm skin through the elastic adjustment seam 7.
[0021] Please see Figure 2 and Figure 4 The inner side of the cut-resistant braided layer 1 is fixedly installed with a covering tape 5. The covering tape 5 includes a nylon layer 501, an elastic layer 502 is provided on the inner side of the nylon layer 501, and a breathable cotton layer 503 is provided on the inner side of the elastic layer 502. The breathable cotton layer 503 is fixedly connected to multiple waterproof layers 601. The nylon layer 501 and the breathable cotton layer 503 are fixedly connected through the elastic layer 502. The covering tape 5 facilitates the stable installation of multiple axial support components 6 and facilitates skin protection.
[0022] Multiple axial support components 6 are installed on the inner side of the covering tape 5. The multiple axial support components 6 are arranged circumferentially relative to the axis of the covering tape 5. The axial support components 6 include a waterproof layer 601. A reinforcing layer 602 is fixedly installed inside the waterproof layer 601. Multiple alloy wires 604 arranged in parallel are installed inside the reinforcing layer 602. A filling layer 603 is filled between the reinforcing layer 602 and the multiple alloy wires 604. A breathable cotton layer 503 is fixedly connected to the multiple waterproof layers 601. The multiple axial support components 6 can provide uniform fit and support for the forearm and maintain the stability of the forearm.
[0023] Please see Figures 1 to 3 Elbow locking assembly 3 and wrist locking assembly 4 are respectively installed between the upper and lower ends of the cut-resistant braided layer 1 and the wrapping band 5. The elbow locking assembly 3 is located at the elbow near the forearm, and the wrist locking assembly 4 is located at the wrist near the forearm. The end cross-sectional dimension of the cut-resistant braided layer 1 near the elbow locking assembly 3 is larger than the end cross-sectional dimension of the cut-resistant braided layer 1 near the wrist locking assembly 4, so that the cut-resistant braided layer 1 and the wrapping band 5 can perform uniform clamping operation on the forearms of patients of different sizes through multiple axial support assemblies 6 arranged in a circle.
[0024] Both the elbow locking assembly 3 and the wrist locking assembly 4 include a tension adjustment box 301. A locking knob 302 is installed in the middle of the tension adjustment box 301. The two ends of the first connecting wire 303 and the second connecting wire 401 are inserted between the two tension adjustment boxes 301 and the locking knob 302. The locking knob 302 and the tension adjustment box 301 are connected by threads. The two ends of the cut-resistant braided layer 1 are fixedly connected to the two tension adjustment boxes 301. The locking knob 302 can lock the first connecting wire 303 and the second connecting wire 401 to the two tension adjustment boxes 301, so that the first connecting wire 303 and the second connecting wire 401 can fix the multiple first auxiliary locking strips 304 and the second auxiliary locking strips 402 relative to the cut-resistant braided layer 1, which can meet the clamping of forearms of different sizes.
[0025] The elbow locking assembly 3 also includes a first connecting wire 303 slidably connected to one of the tension adjustment boxes 301. Multiple first auxiliary locking strips 304 are mounted on the outer side of the first connecting wire 303. The wrist locking assembly 4 also includes a second connecting wire 401 slidably connected to another tension adjustment box 301. Multiple second auxiliary locking strips 402 are mounted on the outer side of the second connecting wire 401. The multiple first auxiliary locking strips 304 and the second auxiliary locking strips 402 are arranged circumferentially relative to the axis of the cut-resistant braided layer 1. The upper ends of the multiple first auxiliary locking strips 304 are all fitted onto the first connecting wire. On the outside of 303, the bottom ends of multiple second auxiliary locking strips 402 are all fitted onto the outside of the second connecting wire 401. The bottom ends of multiple first auxiliary locking strips 304 and the upper ends of the second auxiliary locking strips 402 are fixedly connected to the surface of the cut-resistant braided layer 1. The installation directions of the first auxiliary locking strips 304 and the second auxiliary locking strips 402 are opposite. The multiple first auxiliary locking strips 304 and the second auxiliary locking strips 402 are arranged alternately on the surface of the cut-resistant braided layer 1. By adjusting the tightness of the first connecting wire 303 and the second connecting wire 401, the clamping force at both ends of the forearm can be adjusted.
[0026] When in use, when protecting and clamping the forearm of a patient with a fracture, the cut-resistant braided layer 1 and the covering strap 5 drive multiple axial support components 6 to cover the outside of the forearm, so that one end of the cut-resistant braided layer 1 with the elbow locking component 3 is close to the elbow of the forearm, and one end of the cut-resistant braided layer 1 with the wrist locking component 4 is close to the wrist of the forearm, and the tightness of the first connecting wire 303 and the second connecting wire 401 is adjusted.
[0027] Specifically, both ends of the first connecting wire 303 and the second connecting wire 401 are inserted between the two tension adjustment boxes 301 and the locking knob 302. By pulling the first connecting wire 303 and the second connecting wire 401 and rotating the locking knob 302, the locking knob 302 is connected to the tension adjustment box 301 by threads. This allows the locking knob 302 to lock the first connecting wire 303 and the second connecting wire 401 to the two tension adjustment boxes 301, thereby enabling the first connecting wire 303 and the second connecting wire 401 to swing and adjust the multiple first auxiliary locking strips 304 and the second auxiliary locking strips 402 relative to the cut-resistant braided layer 1.
[0028] Furthermore, the first auxiliary locking strip 304 and the second auxiliary locking strip 402 are installed in opposite directions, which allows for adjustment of the cross-sectional dimensions of both ends of the cut-resistant braided layer 1. This facilitates the uniform clamping of the cut-resistant braided layer 1 and the covering strip 5 to patients with different sizes through multiple axial support components 6 arranged in a circular pattern, thereby improving the stability of the injured forearm. The two closing strips 2 are connected by Velcro to seal the tension adjustment seam 7, which facilitates ventilation and condition checks of the forearm skin through the tension adjustment seam 7.
[0029] 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 forearm splint for bone injury care, comprising a cut-resistant braided layer (1), characterized in that: A covering strap (5) is fixedly installed on the inner side of the cut-resistant braided layer (1). A tension adjustment seam (7) is provided on the surface of the cut-resistant braided layer (1) and the covering strap (5). A closing strap (2) is installed on both sides of the tension adjustment seam (7). Multiple axial support components (6) are installed on the inner side of the covering strap (5). An elbow locking component (3) and a wrist locking component (4) are respectively installed between the upper and lower ends of the cut-resistant braided layer (1) and the covering strap (5). Both the elbow locking component (3) and the wrist locking component (4) include a tension adjustment box (301). A locking knob (302) is installed in the middle of the tension adjustment box (301). The elbow locking assembly (3) further includes a first connecting wire (303) slidably connected to one of the tension adjustment boxes (301), and a plurality of first auxiliary locking strips (304) are installed on the outside of the first connecting wire (303). The wrist locking assembly (4) further includes a second connecting wire (401) slidably connected to another tension adjustment box (301), and a plurality of second auxiliary locking strips (402) are installed on the outside of the second connecting wire (401).
2. A forearm splint for bone injury care according to claim 1, characterized in that: The plurality of axial support components (6) are arranged circumferentially relative to the axis of the covering strip (5). The axial support components (6) include a waterproof layer (601), a reinforcing layer (602) is fixedly installed inside the waterproof layer (601), a plurality of alloy wires (604) arranged in parallel are installed inside the reinforcing layer (602), and a filler layer (603) is filled between the reinforcing layer (602) and the plurality of alloy wires (604).
3. A forearm splint for bone injury care according to claim 2, characterized in that: The covering tape (5) includes a nylon layer (501), an elastic layer (502) is provided on the inner side of the nylon layer (501), a breathable cotton layer (503) is provided on the inner side of the elastic layer (502), the breathable cotton layer (503) is fixedly connected to multiple waterproof layers (601), and the nylon layer (501) and the breathable cotton layer (503) are fixedly connected through the elastic layer (502).
4. A forearm splint for bone injury care according to claim 1, characterized in that: The two closure straps (2) are installed symmetrically relative to the tension adjustment seam (7), the cut-resistant braided layer (1) is fixedly connected to the two closure straps (2), and the two closure straps (2) are connected by Velcro.
5. A forearm splint for bone injury care according to claim 1, characterized in that: The elbow locking assembly (3) is located near the elbow of the forearm, and the wrist locking assembly (4) is located near the wrist of the forearm. The cross-sectional dimension of the cut-resistant braided layer (1) near the elbow locking assembly (3) is larger than the cross-sectional dimension of the cut-resistant braided layer (1) near the wrist locking assembly (4). Both ends of the first connecting wire (303) and the second connecting wire (401) are inserted between the two tension adjustment boxes (301) and the locking knob (302). The locking knob (302) and the tension adjustment box (301) are connected by threads. Both ends of the cut-resistant braided layer (1) are fixedly connected to the two tension adjustment boxes (301).
6. A forearm splint for bone injury care according to claim 5, characterized in that: Multiple first auxiliary locking strips (304) and second auxiliary locking strips (402) are arranged circumferentially relative to the axis of the cut-resistant braided layer (1). The upper ends of multiple first auxiliary locking strips (304) are fitted onto the outside of the first connecting wire (303), and the bottom ends of multiple second auxiliary locking strips (402) are fitted onto the outside of the second connecting wire (401). The bottom ends of multiple first auxiliary locking strips (304) and the upper ends of multiple second auxiliary locking strips (402) are fixedly connected to the surface of the cut-resistant braided layer (1). The installation directions of the first auxiliary locking strips (304) and the second auxiliary locking strips (402) are opposite, and multiple first auxiliary locking strips (304) and second auxiliary locking strips (402) are arranged alternately on the surface of the cut-resistant braided layer (1).