Stretching device for elbow flexion spasticity

Abstract

The utility model discloses a stretching training device for elbow joint flexion spasm, including frame body, the frame body includes connecting arm and frame body adjusting spare, and set up on the frame body: swing spare, with frame body rotatablely connected, upper arm fixed part, fix to frame body, be used for fixing patient upper arm, wrist fixed part, be located swing spare end, be used for fixing patient wrist, stretching spare, for elastic member, connect wrist fixed part and frame body adjusting spare, connecting arm connects upper arm fixed part and frame body adjusting spare. The utility model in view of hemiplegic patient upper limb flexion spasm and wrist hand dysfunction's condition, designed special elbow joint flexion spasm's stretching training device, through wrist fixed part to patient wrist fixed, utilize the tensile force of stretching rope to patient spasm elbow joint and exert the sustained small dose of stretching force, thereby alleviating the flexion spasm of elbow joint.

Description

Technical Field

[0001] This utility model belongs to the field of rehabilitation medical device technology, and in particular relates to a stretching training device for elbow joint flexion spasticity. Background Technology

[0002] Elbow flexion spasticity is a major challenge faced by stroke patients during rehabilitation. It significantly limits the active range of motion and flexion / extension of the elbow joint, and in severe cases, can lead to stiffness and even irreversible damage. This condition not only hinders patients' daily activities but can also have long-term impacts on their quality of life. Treatment for spasticity encompasses various approaches, including medication, exercise therapy, orthotic assistance, and surgery. Among these methods, orthotic assistance plays an indispensable role as a key rehabilitation intervention due to its simplicity, non-invasiveness, ease of use, and low cost. By providing appropriate support and stretching, it helps patients relieve spasticity symptoms and promote functional recovery.

[0003] The prior patent, “A Portable Elbow Joint Flexion and Extension Traction and Training Device” (Publication No.: CN219557960U), combines a forearm fixation plate, an upper arm fixation plate, and a fixation seat to bind and fix the patient’s forearm and upper arm respectively, and uses latex tension ropes to perform elbow joint flexion and extension traction and training.

[0004] However, this device is primarily designed for elbow injuries caused by trauma, and its use presupposes that the patient's wrist and hand function remain normal, with sufficient grip strength and stability. During use, the patient needs to grip the handles and maintain a certain degree of wrist stability to achieve the stretching effect. Unfortunately, this design is not suitable for hemiplegic patients, as their elbow flexion spasticity is often accompanied by wrist and hand dysfunction. Due to this dysfunction, hemiplegic patients cannot perform effective gripping movements, therefore the original device's structure is unsuitable for their needs. Therefore, it is necessary to design a new upper limb flexion spasticity stretching training device specifically for hemiplegic patients to better meet their rehabilitation needs. Utility Model Content

[0005] In view of the shortcomings of existing technology, and considering the upper limb flexion spasticity in hemiplegic patients, this utility model provides a stretching training device for elbow joint flexion spasticity. The technical solution implemented by this utility model is as follows:

[0006] A stretching training device for elbow flexion spasticity includes a frame, the frame including a connecting arm and a frame adjustment component, and components mounted on the frame:

[0007] The swing element is rotatably connected to the frame.

[0008] Upper arm fixation device, fixed to the frame, used to fix the patient's upper arm;

[0009] A wrist fixation device, located at the end of the swinging component, is used to fix the patient's wrist.

[0010] The tension member, an elastic component, connects the wrist fixation member and the frame adjustment member;

[0011] The connecting arm connects the upper arm fixing component and the frame adjustment component.

[0012] In this embodiment of the utility model, the swinging component is a swing arm, one end of which is hinged to the frame, the hinge point is located on the connecting arm, and the other end of the swing arm is provided with a wrist fixing component.

[0013] The upper arm fixation device is curved to fit the shape of the patient's upper arm.

[0014] To accommodate the dimensions of the upper arm fixing component and the frame adjustment component, the connecting arm has an irregular shape, converging from the upper arm fixing component towards the frame adjustment component.

[0015] In this embodiment of the utility model, the tensioning member is a tension rope. In order to adjust the tension angle, the frame adjustment member is provided with several adjustment holes for the tension rope to pass through. A tension rope fixing member is also provided for fixing the tension rope, including a screw that passes through the frame adjustment member and a rope threading member at the end of the screw. The rope threading member includes at least two holes. After the tension rope passes through the adjustment holes, it passes through the two holes of the rope threading member and then wraps around the screw. The screw is tightened to fix the tension rope.

[0016] In this embodiment of the invention, the wrist fastener includes either a fixing plate or a wrist fixing ring, and a tension rope fixing seat. The tension rope fixing seat includes a seat body fixedly connected to the fixing plate or the wrist fixing ring, and a wrist fixing bolt connected to the seat body. The tension rope is tied to the wrist fixing bolt, and then the wrist fixing bolt is tightened to fix the tension rope. A bolt fixing seat is provided on the side of the fixing plate or the wrist fixing ring. Straps are provided at both ends of the fixing plate or the wrist fixing ring.

[0017] The fixation plate is suitable for cases where the forearm tension is normal, while the wrist fixation ring is used when the patient has excessive muscle tension. In such cases, the patient's forearm is rotated, and the fixation plate provides poor comfort.

[0018] The tension rope is an elastic rope.

[0019] In this embodiment of the utility model, the wrist fixing member is bolted to the swing arm, and a swing arm adjustment hole is provided on the swing arm. The bolt passes through the swing arm adjustment hole and is tightened to the bolt fixing seat on the side of the wrist fixing member.

[0020] To improve the bolt fixing firmness, a cylindrical channel is fixed on the swing arm adjustment hole, and the cylindrical channel can be provided with threads adapted to the bolt to prevent the bolt from being misaligned.

[0021] To accommodate patients with different arm lengths, the swing arm has several hinge holes at one end near the frame, and the swing arm adjustment holes are several arranged on the swing arm.

[0022] The frame and upper arm fixing components are designed with openwork to reduce the overall weight of the device and improve user comfort.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] (1) This utility model is designed for the loss of strength in the hands and wrists of hemiplegic patients. It is a special stretching training device for elbow flexion spasm. The wrist is fixed by a wrist fixation device, and the tension of the stretching rope is used to apply a continuous small dose of stretching force to the elbow joint, thereby relieving elbow flexion spasm.

[0025] (2) For hemiplegic patients, whose forearms rotate and cannot be stretched in the anatomical position, the wrist joint fixation structure has been further improved. A ring-shaped wrist fixation device is used to fix the patient's wrist, which improves the stability of the fixation and the comfort of the patient.

[0026] (3) This device achieves lightweight design: the frame includes connecting arms connecting both ends, and both ends are hollowed out to reduce the overall weight of the device and improve user comfort. Attached Figure Description

[0027] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0028] Figure 1 A schematic diagram of the overall structure of the stretching training device for elbow flexion spasm provided in Embodiment 1 of this utility model;

[0029] Figure 2 This is a schematic diagram of the orthographic projection angle of the stretching training device for elbow flexion spasm provided in Embodiment 2 of this utility model.

[0030] Figure 3 A schematic diagram of the overall structure of the stretching training device for elbow flexion spasm provided in Embodiment 2 of this utility model;

[0031] Figure 4 This is a schematic diagram of the wrist fixation component in the stretching training device for elbow flexion spasm provided in Embodiment 2 of this utility model.

[0032] Among them, 1-frame, 2-swing arm, 3-wrist fixation piece, 4-connecting arm, 5-frame adjustment piece, 6-upper arm fixation piece, 7-tension rope, 8-strap;

[0033] 201 - Swing arm adjustment hole; 202 - Hinge hole;

[0034] 301-Fixing plate, 302-Base, 303-Wrist fixing bolt, 304-Bolt fixing seat, 305-Wrist fixing ring;

[0035] 501 - Adjustment hole, 502 - Tension rope fixing component. Detailed Implementation

[0036] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, 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.

[0037] The anatomical position described in this utility model refers to the state of standing with the palm facing forward or lying flat with the palm facing upward.

[0038] Example 1,

[0039] Stretching training devices for elbow flexion spasticity, such as Figure 1 As shown, the device includes a frame 1, a swing arm 2 mounted on the frame 1, and a wrist fixation member 3 mounted on the swing arm 2. The frame 1 includes an upper arm fixation member 6 for fixing the upper arm, a connecting arm 4, and a frame adjustment member 5. The upper arm fixation member 6 and the frame adjustment member 5 are connected by the connecting arm 4. To adapt to the shape of the patient's upper arm, the upper arm fixation member 6 is arc-shaped. The frame adjustment member 5 is a flat structure and is fixedly connected to the connecting arm 4 or integrally formed. To adapt to the size of the upper arm fixation member 6 and the frame adjustment member 5, the connecting arm 4 is an irregular structure that converges from the upper arm fixation member 6 towards the frame adjustment member 5. The frame adjustment member 5 is provided with several adjustment holes 501 for the tension rope 7 to pass through. It is also provided with a tension rope fixation member 502. The tension rope fixation member 502 is fixed on the frame adjustment member 5 and has internal threads. The screw is screwed into the tension rope fixation member 502 through the threads to tighten and fix the tension rope.

[0040] One end of the swing arm 2 is hinged to the frame 1, with the hinge point located on the connecting arm 4. The other end of the swing arm 2 is equipped with a wrist fixing member 3, such as... Figure 1As shown, the wrist fixation component 3 includes a fixation plate 301 and a tension rope fixing seat. The tension rope fixing seat includes a seat body 302 fixedly connected to the fixation plate 301 and a wrist fixing bolt 303 connected to the seat body 302. The tension rope is tied to the wrist fixing bolt 303, and then the wrist fixing bolt 303 is tightened to fix the tension rope. A bolt fixing seat 304 is provided on the side of the fixation plate 301. To improve patient comfort, the fixation plate 301 is slightly curved. Both ends of the fixation plate 301 are provided with straps 8 and through holes for fixing the straps 8.

[0041] The tension rope is an elastic rope.

[0042] The wrist fixation component 3 is bolted to the swing arm 2. To adjust the position of the wrist fixation component 3, a swing arm adjustment hole 201 is provided on the swing arm 2. The bolt passes through the swing arm adjustment hole 201 and is tightened to the bolt fixing seat 304 on the side of the wrist fixation component 3. To improve the bolt fixing firmness, a cylindrical channel is fixed on the swing arm adjustment hole 201. The cylindrical channel can be provided with threads adapted to the bolt to prevent the bolt from being misaligned.

[0043] To accommodate patients with different arm lengths, the swing arm 2 is provided with several hinge holes 202 at one end near the frame, and the swing arm adjustment holes 201 are several arranged on the swing arm 2.

[0044] The frame 1 and upper arm fixing 6 adopt a hollow design to reduce the overall weight of the device and improve user comfort.

[0045] Example 2,

[0046] For hemiplegic patients, whose forearms rotate and cannot be stretched in an anatomical position, the wrist joint fixation structure was further improved based on Example 1 to accommodate this type of patient.

[0047] like Figure 2 and Figure 3 , Figure 4 As shown, the wrist fixing component 3 includes a wrist fixing ring 305, a bolt fixing seat 304 is provided on the side of the wrist fixing ring 305 for fixing to the swing arm 2, and a tension rope fixing seat is provided at the bottom end.

[0048] The wrist fixing ring 305 can be a ring or a half-ring with a notch, and the notch is provided with a through hole for fixing the strap.

[0049] The wrist fixation ring can be a circular ring or a ring with other curvature angles to take into account the forearm rotation angle.

[0050] like Figure 4As shown, the side wall of the seat 302 is provided with a through hole for the elastic rope to pass through. The surface of the seat 302 facing the wrist fixing bolt 303 is provided with a textured surface 306. After the wrist fixing bolt 303 is tightened, the friction between the elastic rope and the seat 302 can be increased.

[0051] When in use, adjust the connection position between the swing arm 2 and the frame 1, and adjust the connection position between the wrist fixation piece 3 and the swing arm 2. Fix the patient's upper arm to the upper arm fixation piece 6, which can be fixed with a strap. Fix the patient's wrist to the wrist fixation piece 3, which can be fixed with a strap. Fix one end of the tension rope to the swing arm 2, and adjust the length of the other end to fix it to the frame adjustment piece 5. The elastic rope is used for long-term small-dose stretching to relieve elbow joint flexion spasm.

[0052] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A stretching training device for elbow flexion spasm, characterized in that, The frame includes a connecting arm and a frame adjustment component, as well as components mounted on the frame: A swinging component is rotatably connected to the frame; the swinging component is a swing arm, one end of which is hinged to the frame, the hinge point is located on the connecting arm, and the other end of the swing arm is provided with a wrist fixing component; Upper arm fixation device, fixed to the frame, used to fix the patient's upper arm; A wrist fixation device, located at the end of the swinging component, is used to fix the patient's wrist. The tension member, being an elastic element, connects the wrist fixation member and the frame adjustment member; the tension member is a tension rope. The connecting arm connects the upper arm fixing component and the frame adjustment component; The frame adjustment component has several adjustment holes for the tension rope to pass through, and also has a tension rope fixing component. The tension rope fixing component is fixed on the frame adjustment component and has internal threads. The screw is screwed into the tension rope fixing component through the threads to tighten and fix the tension rope.

2. The stretching device for elbow flexion contracture according to claim 1, wherein The upper arm fixing component is arc-shaped; the connecting arm is an irregular structure that converges from the upper arm fixing component towards the frame adjustment component.

3. The stretching device for elbow flexion contracture according to claim 2, wherein The wrist fastener includes either a fixing plate or a wrist fixing ring, and a tension rope fixing seat. The tension rope fixing seat includes a seat body fixedly connected to the fixing plate or the wrist fixing ring and a wrist fixing bolt connected to the seat body. Straps are attached to both ends of the fixing plate or wrist fixing ring.

4. The stretching training device for elbow flexion spasticity according to claim 3, characterized in that, The wrist fastener is bolted to the swing arm, and a swing arm adjustment hole is provided on the swing arm. The bolt passes through the swing arm adjustment hole and is tightened to the bolt fixing seat on the side of the wrist fastener.

5. The stretching training device for elbow flexion spasticity according to claim 4, characterized in that, A cylindrical channel is fixed on the swing arm adjustment hole, and the cylindrical channel is provided with the thread of the matching bolt.

6. The stretching training device for elbow flexion spasticity according to claim 5, characterized in that, The swing arm has several hinge holes at one end near the frame, and the swing arm adjustment holes are several arranged on the swing arm.

7. The stretching training device for elbow flexion spasm according to claim 6, characterized in that, The frame and upper arm fixing components are designed with openwork.

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