Elbow joint straightening assistive device

By designing an elbow extension assistive device, which uses elastic bands and a binding mechanism to passively extend the elbow joint of stroke patients, the problem of upper limb flexion affecting walking in stroke patients is solved, and passive extension and easy replacement of the elbow joint are achieved.

CN223601584UActive Publication Date: 2025-11-28AFFILIATED HUSN HOSPITAL OF FUDAN UNIV
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Patent Information

Application Number
CN202422820825.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-19
Publication Date
2025-11-28
Estimated Expiration
2034-11-19

AI Technical Summary

Technical Problem

Stroke patients often experience an inability to actively extend their elbows when standing due to flexion of the upper limbs, which affects their ability to walk. Current technology lacks effective assistive devices.

Method used

An elbow joint straightening aid has been designed, comprising an elastic cloth, an elastic band, a fixing block, a T-shaped joint straightening aid, a fixing ring, a disassembly mechanism, and a fastening mechanism. The elbow joint straightening aid, through the disassembly mechanism and the fastening mechanism, passively straightens the elbow joint using the elastic band and the fastening mechanism. The addition of Velcro and the disassembly mechanism facilitates replacement.

Benefits of technology

It enables passive extension of the elbow joint in stroke patients, assists in the extension of the triceps brachii, improves the patient's walking ability, and facilitates the disassembly and replacement of the device.

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Abstract

The utility model relates to an elbow joint straightening assistive device which comprises elastic cloth, two elastic bands are arranged on one face of the elastic cloth, fixing blocks fixedly connected with the elastic cloth are arranged at the two ends of each elastic band, T-shaped sliding grooves are formed in one faces of the fixing blocks, T-shaped sliding blocks are connected to the inner walls of the T-shaped sliding grooves in a sliding mode, and fixing rings are fixedly connected to one ends of the T-shaped sliding blocks. The fixing ring is fixedly connected with the elastic belt, the T-shaped sliding block is connected with the T-shaped sliding groove through a dismounting mechanism, and two binding mechanisms are arranged on the other face of the elastic cloth. According to the elbow joint straightening assistive device, the elbow joint in a buckling spasm state can be passively straightened, walking of lower limbs is facilitated in an upper limb straightening state, triceps brachii muscle can be assisted to straighten the elbow joint, the purpose of elbow joint exercise is achieved, and the elbow joint straightening assistive device is practical.
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Description

TECHNICAL FIELD

[0001] The utility model relates to medical auxiliary instrument technical field, especially a kind of elbow joint straightening auxiliary device. BACKGROUND

[0002] Stroke is divided into hemorrhagic stroke and ischemic stroke two types, is a series of clinical symptoms caused by cerebral blood vessels under the action of various factors, suddenly ruptured hemorrhage or embolism, infarction, ischemia, is a kind of disease more common in neurology department. And stroke spasm patient upper limb is often in flexion state, stroke patient stands and cannot actively complete the action of elbow extension, upper limb in flexion state is not conducive to patient walking, for this purpose, we propose a kind of elbow joint straightening auxiliary device. UTILITY MODEL CONTENT

[0003] The utility model provides a kind of elbow joint straightening auxiliary device, solve the technical problem of background technology in prior art.

[0004] The utility model solves the technical problem of the above-mentioned technical scheme as follows: including elastic cloth, one side of the elastic cloth is provided with two elastic bands, the two ends of the elastic band are provided with fixed blocks fixedly connected with the elastic cloth, a T-shaped sliding slot is formed in one side of the fixed block, a T-shaped sliding block is slidably connected to the inner wall of the T-shaped sliding slot, a fixed ring is fixedly connected to one end of the T-shaped sliding block, the fixed ring is fixedly connected with the elastic band, the T-shaped sliding block and the T-shaped sliding slot are connected by a dismounting mechanism, the other side of the elastic cloth is provided with two groups of binding mechanisms.

[0005] On the basis of the above technical scheme, the utility model can also be improved as follows.

[0006] Further, each group of the binding mechanism includes a connecting band one and a connecting band two, and the connecting band one and the connecting band two are fixedly connected with the elastic cloth.

[0007] Further, a through slot is formed on the surface of the connecting band one, and the connecting band two is slidably connected with the inside of the through slot.

[0008] Further, a Velcro hook face and a Velcro fleece face are fixedly connected to the back of the connecting band two.

[0009] Further, the dismounting mechanism includes a cylinder fixedly connected with the fixed block, and a limiting ring is slidably connected inside the cylinder.

[0010] Further, a positioning rod is fixedly connected inside the limiting ring, the positioning rod penetrates the cylinder and the positioning block and is slidably connected with the penetrated part, and the positioning rod is slidably connected with a positioning hole formed on the surface of the T-shaped sliding block.

[0011] Further, a spring is arranged inside the cylinder, the spring is sleeved on the surface of the positioning rod, and the two ends of the spring are fixedly connected with the cylinder and the limiting ring respectively.

[0012] The beneficial effects of this utility model are as follows: This utility model provides an elbow joint extension assistive device, which has the following advantages:

[0013] Through the coordinated action of the elastic cloth, elastic band, fixing block, T-shaped slider, T-shaped groove, fixing ring, disassembly mechanism, and tightening mechanism, the patient can wear the entire device on their arm, which passively straightens the elbow joint in a flexed spastic state. The straightened upper limb facilitates walking of the lower limb. On the other hand, it can help the triceps brachii to straighten the elbow joint, achieving the purpose of elbow joint exercise. Moreover, the elastic band is easy to disassemble and replace, which improves its practicality.

[0014] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the structure of an elbow joint extension assist device provided in an embodiment of the present invention;

[0017] Figure 2 for Figure 1 A schematic diagram of the structure of an elbow extension device is provided from the left side.

[0018] Figure 3 for Figure 1 A top view schematic diagram of the structure of an elbow joint extension assistive device is provided.

[0019] Figure 4 for Figure 2 A partial structural cross-sectional diagram of an elbow extension assistive device is provided.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Positioning rod; 2. Cylinder; 3. Fixing block; 4. T-shaped slider; 5. T-shaped groove; 6. Fixing ring; 7. Elastic band; 8. Elastic cloth; 9. Connecting band one; 10. Through groove; 11. Connecting band two; 12. Velcro rough side; 13. Velcro hook side; 14. Spring; 15. Limiting ring; 16. Positioning hole. Detailed Implementation

[0022] The following is in conjunction with the appendix Figures 1-4 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0023] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] like Figures 1-4 As shown, this utility model provides an elbow joint extension assistive device, including an elastic cloth 8. Two elastic bands 7 are provided on one side of the elastic cloth 8. Each end of the elastic band 7 is provided with a fixing block 3 that is fixedly connected to the elastic cloth 8. A T-shaped groove 5 is opened on one side of the fixing block 3. A T-shaped slider 4 is slidably connected to the inner wall of the T-shaped groove 5. A fixing ring 6 is fixedly connected to one end of the T-shaped slider 4. The fixing ring 6 is fixedly connected to the elastic band 7. The T-shaped slider 4 and the T-shaped groove 5 are connected by a disassembly mechanism. Two sets of binding mechanisms are provided on the other side of the elastic cloth 8.

[0026] Preferably, each of the binding mechanisms includes a first connecting strap 9 and a second connecting strap 11, both of which are fixedly connected to the elastic fabric 8.

[0027] Preferably, the surface of the connecting strap 9 is provided with a through groove 10, and the connecting strap 11 is slidably connected to the inside of the through groove 10. The through groove 10 facilitates the connecting strap 11 to pass through the through groove 10 to tightly bind the patient's arm.

[0028] Preferably, the connecting band two 11 back surface is fixedly connected with the magic hook face 13 and the magic tape 12.

[0029] Preferably, the dismounting mechanism includes a cylinder 2 fixedly connected with the fixed block 3, and a limiting ring 15 is slidably connected in the cylinder 2, and the limiting ring 15 is arranged to compress the spring 14.

[0030] Preferably, the limiting ring 15 is fixedly connected with a positioning rod 1 inside the limiting ring 15, the positioning rod 1 penetrates the cylinder 2 and the positioning block and is slidably connected with the penetrating part, and the positioning rod 1 is slidably connected with a positioning hole 16 arranged on the surface of the T-shaped sliding block 4.

[0031] Preferably, the cylinder 2 is provided with a spring 14 inside the cylinder 2, the spring 14 is sleeved on the surface of the positioning rod 1, and the two ends of the spring 14 are fixedly connected with the cylinder 2 and the limiting ring 15 respectively.

[0032] The specific working principle and use method of the utility model are as follows:

[0033] The utility model provides a kind of elbow joint straightening auxiliary tool, when using, the two groups of binding mechanism of one side of elastic cloth 8 are respectively bound tightly on the lower arm and upper arm of patient, and after binding, the arm of patient can be passively straightened under the action of elastic band 7, so as to make elbow joint in flexion spasm state passive straightening, and upper limb straightening state is beneficial to lower limb walking, and patient can make elbow joint flexion by arm power, at this time, elastic band 7 is stretched, then patient will make the force of elbow joint flexion to be released, at this time, elastic band 7 is reset under the action of its own reset force, so as to make elbow joint passive straightening again, so as to assist triceps brachii to straighten elbow joint, play elbow joint exercise purpose, subsequent can be separated by pulling positioning rod 1, positioning rod 1 is separated from positioning hole 16, after separation, T-shaped sliding block 4 can be taken out from T-shaped sliding slot 5, elastic band 7 can be disassembled and replaced, when installing, T-shaped sliding block 4 is slid into T-shaped sliding slot 5, by loosening positioning rod 1, limiting ring 15 drives positioning rod 1 to reset and move under the action of reset force of spring 14, so that positioning rod 1 is slid into positioning hole 16, and T-shaped sliding block 4 is limited in T-shaped sliding slot 5, so as to complete the limiting installation of elastic band 7, and the disassembly and replacement of elastic band 7 are facilitated.

[0034] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in any form; any person skilled in the art can smoothly implement the present application according to the drawings shown in the specification and the above description; however, any person skilled in the art can make slight changes, modifications and equivalent changes of the present application within the scope of the technical scheme of the present application, and the equivalent embodiments of the present application are still within the protection scope of the technical scheme of the present application.

Claims

1. An elbow joint extension aid comprising an elastic cloth (8), characterized in that, The elastic cloth (8) is provided with two elastic bands (7) on one side, and the two ends of the elastic band (7) are provided with fixed blocks (3) fixedly connected with the elastic cloth (8), one side of the fixed block (3) is provided with a T-shaped sliding groove (5), the inner wall of the T-shaped sliding groove (5) is slidably connected with a T-shaped sliding block (4), one end of the T-shaped sliding block (4) is fixedly connected with a fixed ring (6), the fixed ring (6) is fixedly connected with the elastic band (7), the T-shaped sliding block (4) and the T-shaped sliding groove (5) are connected through a dismounting mechanism, and the other side of the elastic cloth (8) is provided with two groups of binding mechanisms.

2. The elbow extension assist of claim 1, wherein Each group of the binding mechanism comprises a connecting belt one (9) and a connecting belt two (11), and the connecting belt one (9) and the connecting belt two (11) are fixedly connected with the elastic cloth (8).

3. The elbow extension assist of claim 2, wherein, The connecting belt one (9) is provided with a through groove (10) on the surface, and the connecting belt two (11) is slidably connected with the inside of the through groove (10).

4. The elbow extension assist of claim 3, wherein, The connecting belt two (11) is fixedly connected with a Velcro hook face (13) and a Velcro wool face (12) on the back.

5. The elbow extension assist of claim 1, wherein, The dismounting mechanism comprises a cylinder (2) fixedly connected with the fixed block (3), and the cylinder (2) is slidably connected with a limiting circular ring (15) inside.

6. The elbow extension assist of claim 5, wherein, The limiting circular ring (15) is fixedly connected with a positioning rod (1) inside, the positioning rod (1) penetrates the cylinder (2) and the positioning block and is slidably connected with the penetrating part, and the positioning rod (1) is slidably connected with a positioning hole (16) formed on the surface of the T-shaped sliding block (4).

7. The elbow extension assist of claim 6, wherein, The cylinder (2) is provided with a spring (14) inside, the spring (14) is sleeved on the surface of the positioning rod (1), and the two ends of the spring (14) are fixedly connected with the cylinder (2) and the limiting circular ring (15).