Angle-adjustable upper limb fixing brace

By designing an adjustable-angle upper limb fixation brace, the problem of the brace being unable to maintain forearm supination while allowing elbow joint movement was solved, enabling patients to perform normal rehabilitation activities, avoiding joint stiffness and muscle atrophy, and improving rehabilitation outcomes.

CN223504398UActive Publication Date: 2025-11-04THE SECOND HOSPITAL OF SHANDONG UNIV
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Patent Information

Application Number
CN202422949845.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-02
Publication Date
2025-11-04
Estimated Expiration
2034-12-02

AI Technical Summary

Technical Problem

Existing braces cannot maintain forearm supination while allowing normal elbow joint movement, leading to problems such as joint stiffness and muscle atrophy during rehabilitation.

Method used

An adjustable upper limb fixation brace was designed, comprising an upper arm fixation plate, a forearm fixation plate, a hand fixation plate, an elbow adjustment joint, and a wrist adjustment joint. It is made of low-temperature heat-shrinkable sheet material and equipped with Velcro for fastening. The rotation scale of the elbow adjustment joint is less than 30 degrees, and an airbag is set on the wrist adjustment joint to achieve comfortable movement.

Benefits of technology

This method allows patients to maintain normal elbow joint movement during immobilization, preventing joint stiffness and muscle atrophy, and improving rehabilitation efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an angle-adjustable upper limb fixing brace which comprises an upper arm fixing plate, a forearm fixing plate, a hand fixing plate, an elbow adjusting joint and a wrist adjusting joint, and the elbow adjusting joint comprises a first connecting plate, a second connecting plate and a chuck; the wrist adjusting joint comprises a movable hinge and a fixing plate, the movable hinge and the fixing plate are arranged in parallel, the upper ends of the movable hinge and the fixing plate are fixedly connected with the bottom of the forearm fixing plate, the lower ends of the movable hinge and the fixing plate are fixedly connected with the bottom of the hand fixing plate, the palm faces upwards after fixing, and the fixing plate is detachable. The elbow joint supporting tool has the advantages that a patient can do normal movement of the elbow joint while wearing the supporting tool, so that movement limitation possibly brought by a traditional supporting tool is avoided, rehabilitation efficiency is improved, and complications such as joint stiffness and amyotrophy possibly caused by long-time wearing of the traditional supporting tool are avoided.
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Description

Technical Field

[0001] This utility model relates to the field of fixed braces, specifically to an adjustable-angle upper limb fixed brace. Background Technology

[0002] Standard fixation techniques for traumatic triangular fibrocartilage complex (TFCC) injuries are crucial, directly impacting the patient's rehabilitation process and eventual functional recovery. During fixation, the patient's forearm should first be positioned with the palm facing upwards, a position known as "supination." This posture helps maintain the wrist's natural physiological structure and reduces additional stress or injury caused by improper positioning.

[0003] Maintaining elbow mobility is also a crucial aspect of immobilization. Moderate elbow movement promotes blood circulation and prevents joint stiffness and muscle atrophy. Prolonged immobilization that restricts elbow movement can lead to elbow stiffness, making it difficult for patients to perform normal elbow flexion and extension movements after rehabilitation. Furthermore, muscle atrophy is another serious consequence of long-term immobilization, causing decreased muscle strength and affecting overall wrist and arm function.

[0004] However, premature removal of the immobilization also carries risks. If the TFCC injury is not fully healed, allowing the patient to move their wrist too early can lead to secondary injury, significantly increasing the risk of re-injury. This not only prolongs recovery time but may also cause more serious damage, even requiring surgery. Therefore, there is an urgent need for a brace that can meet the requirements of fixed posture, elbow range of motion, and immobilization time to maximize the user's recovery. Utility Model Content

[0005] To address the issue that braces cannot maintain forearm supination while allowing normal elbow joint movement;

[0006] This utility model provides an adjustable upper limb fixation brace, including an upper arm fixation plate, a forearm fixation plate, and a hand fixation plate, and also includes an elbow adjustment joint and a wrist adjustment joint. The elbow adjustment joint includes a first connecting plate, a second connecting plate, and a chuck. The first connecting plate is fixedly connected to the lower turntable of the chuck, the second connecting plate is fixedly connected to the upper turntable of the chuck, the first connecting plate is fixedly connected to the side of the upper arm fixation plate, and the second connecting plate is fixedly connected to the side of the forearm fixation plate.

[0007] The wrist adjustment joint includes a movable hinge and a fixing plate, which are arranged in parallel. The upper end of the movable hinge and the fixing plate is fixedly connected to the bottom of the forearm fixing plate, and the lower end of the movable hinge and the fixing plate is fixedly connected to the bottom of the hand fixing plate. After fixing, the palm faces upward, and the fixing plate is detachable.

[0008] As a preferred embodiment, the upper arm fixing plate, forearm fixing plate, and hand fixing plate are made of low-temperature heat shrinkable board.

[0009] As a preferred embodiment, the upper arm is fixedly secured with multiple annular upper arm fastening Velcro straps on the outer side of the upper arm fixing plate.

[0010] As a preferred embodiment, the forearm is fixedly secured with multiple annular forearm fastening Velcro straps on the outer side of the forearm fixing plate.

[0011] As a preferred embodiment, multiple annular hand-fixing Velcro straps are fixedly provided on the outer side of the hand fixing plate to fix the hand.

[0012] As a preferred embodiment, bolts and nuts are provided at both ends of the fixing plate to connect the forearm fixing plate and the hand fixing plate.

[0013] As a preferred embodiment, the minimum rotation scale of the chuck is no greater than 30 degrees.

[0014] As a preferred embodiment, an airbag is provided above the wrist adjustment joint, and the airbag is positioned inside the forearm fixation plate and the hand fixation plate to wrap around the wrist.

[0015] The beneficial effects of this utility model are as follows:

[0016] This invention allows patients to perform normal elbow joint movements while wearing a brace, thus avoiding the movement restrictions that traditional braces may cause, improving rehabilitation efficiency, and avoiding complications such as joint stiffness and muscle atrophy that may result from wearing traditional braces for a long time. Attached Figure Description

[0017] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein...

[0018] Figure 1 This is a schematic diagram of the structure of the present invention.

[0019] Figure 2 A schematic diagram of the wrist adjustment joint of this utility model.

[0020] The numbers in the attached diagram are:

[0021] 1. Upper arm fixation plate; 11. Upper arm fixation hook and loop fastener; 2. Forearm fixation plate; 21. Forearm fixation hook and loop fastener; 3. Hand fixation plate; 31. Hand fixation hook and loop fastener; 4. Elbow adjustment joint; 41. First connecting plate; 42. Second connecting plate; 43. Chuck; 5. Wrist adjustment joint; 51. Movable hinge; 52. Fixation plate; 6. Airbag. Detailed Implementation

[0022] To illustrate the features of this utility model, the following description, in conjunction with the accompanying drawings and embodiments, will further explain this utility model.

[0023] Example:

[0024] Please see Figure 1 and Figure 2 This utility model embodiment provides an adjustable-angle upper limb fixation brace, including an upper arm fixation plate 1, a forearm fixation plate 2, and a hand fixation plate 3;

[0025] It also includes an elbow adjustment joint 4 and a wrist adjustment joint 5. The elbow adjustment joint 4 includes a first connecting plate 41, a second connecting plate 42 and a chuck 43. The first connecting plate 41 is fixedly connected to the lower turntable of the chuck 43, the second connecting plate 42 is fixedly connected to the upper turntable of the chuck 43, the first connecting plate 41 is fixedly connected to the side of the upper arm fixing plate 1, and the second connecting plate 42 is fixedly connected to the side of the forearm fixing plate 2.

[0026] The wrist adjustment joint 5 includes a movable hinge 51 and a fixing plate 52. The movable hinge 51 and the fixing plate 52 are arranged in parallel. The upper end of the movable hinge 51 and the fixing plate 52 is fixedly connected to the bottom of the forearm fixing plate 2, and the lower end of the movable hinge 51 and the fixing plate 52 is fixedly connected to the bottom of the hand fixing plate 3. After fixing, the palm faces upward, and the fixing plate 52 is detachable.

[0027] Preferably, in this embodiment, the upper arm fixing plate 1, forearm fixing plate 2, and hand fixing plate 3 are made of low-temperature heat shrinkable board, which has better portability, good breathability, waterproofness, and high adaptability.

[0028] In addition, to ensure the fixation of the arm, the fixation device in this embodiment is optimized. Specifically, multiple annular upper arm fixing hook and loop fasteners 11 are fixedly installed on the outer side of the upper arm fixing plate 1 to fix the upper arm; multiple annular forearm fixing hook and loop fasteners 21 are fixedly installed on the outer side of the forearm fixing plate 2 to fix the forearm; and multiple annular hand fixing hook and loop fasteners 31 are fixedly installed on the outer side of the hand fixing plate 3 to fix the hand.

[0029] To ensure easy assembly and disassembly of the fixing plate 52, bolts and nuts are provided at both ends of the fixing plate 52 in this embodiment to connect the forearm fixing plate 2 and the hand fixing plate 3.

[0030] In order to ensure that the rotation angle of the chuck 43 meets the patient's comfort needs, the minimum rotation scale of the chuck 43 is no more than 30 degrees, and an airbag 6 is set above the wrist adjustment joint 5. The airbag 6 is set inside the forearm fixation plate 2 and the hand fixation plate 3 to wrap around the wrist. The airbag 6 can be equipped with an air pump and a one-way valve. After wrapping around the arm, it can be pressed and then inflated to protect the wrist.

[0031] The above embodiments and accompanying drawings are only used to illustrate the technical solutions of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions, or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model. Other related technical structures not disclosed in detail in this utility model are existing technologies in the art.

Claims

1. An adjustable-angle upper limb fixation brace, comprising an upper arm fixation plate (1), a forearm fixation plate (2), and a hand fixation plate (3), characterized in that: It also includes an elbow adjustment joint (4) and a wrist adjustment joint (5). The elbow adjustment joint (4) includes a first connecting plate (41), a second connecting plate (42) and a chuck (43). The first connecting plate (41) is fixedly connected to the lower turntable of the chuck (43), and the second connecting plate (42) is fixedly connected to the upper turntable of the chuck (43). The first connecting plate (41) is fixedly connected to the side of the upper arm fixing plate (1), and the second connecting plate (42) is fixedly connected to the side of the forearm fixing plate (2). The wrist adjustment joint (5) includes a movable hinge (51) and a fixing plate (52). The movable hinge (51) and the fixing plate (52) are arranged in parallel. The upper end of the movable hinge (51) and the fixing plate (52) is fixedly connected to the bottom of the forearm fixing plate (2), and the lower end of the movable hinge (51) and the fixing plate (52) is fixedly connected to the bottom of the hand fixing plate (3). After fixing, the palm faces upward, and the fixing plate (52) is detachable.

2. The adjustable-angle upper limb fixation brace according to claim 1, characterized in that: The upper arm fixing plate (1), forearm fixing plate (2) and hand fixing plate (3) are low-temperature heat shrinkable plates.

3. The adjustable-angle upper limb fixation brace according to claim 1, characterized in that: Multiple ring-shaped upper arm fixing Velcro straps (11) are fixedly installed on the outer side of the upper arm fixing plate (1) to fix the upper arm.

4. The adjustable-angle upper limb fixation brace according to claim 1, characterized in that: Multiple ring-shaped forearm fixing Velcro straps (21) are fixedly installed on the outside of the forearm fixing plate (2) to fix the forearm.

5. The adjustable-angle upper limb fixation brace according to claim 1, characterized in that: Multiple ring-shaped hand-fixing Velcro straps (31) are fixedly installed on the outside of the hand fixing plate (3) to fix the hand.

6. The adjustable-angle upper limb fixation brace according to claim 1, characterized in that: The fixing plate (52) is provided with bolts and nuts at both ends to connect the forearm fixing plate (2) and the hand fixing plate (3).

7. The adjustable-angle upper limb fixation brace according to claim 1, characterized in that: The minimum rotation increment of the chuck (43) is no more than 30 degrees.

8. The adjustable-angle upper limb fixation brace according to claim 1, characterized in that: An airbag (6) is provided above the wrist adjustment joint (5). The airbag (6) is located inside the forearm fixation plate (2) and the hand fixation plate (3) to wrap around the wrist.