Joint flexion and extension device for burn and plastic rehabilitation training

By designing a joint flexion and extension device that includes a placement frame, a support frame, a rotating ring, and an adjustment mechanism, the problem of burn patients having difficulty performing joint flexion and extension exercises on their own has been solved. This has enabled automated joint rehabilitation training, adapting to different patients and training needs, and improving rehabilitation outcomes.

CN224085650UActive Publication Date: 2026-04-07THE 969TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-03
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Burn patients often find it difficult to perform effective joint flexion and extension exercises, leading to limited joint range of motion and contractures, which affects the rehabilitation outcome.

Method used

A joint flexion and extension device was designed, comprising a placement frame, a support frame, a rotating ring, a restraint strap, and an adjustment mechanism. The device uses a servo motor to drive a threaded column and a threaded block to achieve automatic reciprocating rotation and amplitude adjustment of the joint, adapting to the arm length and training needs of different patients.

Benefits of technology

It improves the applicability and effectiveness of joint flexion and extension training, making it suitable for different patients. It can automatically adjust the range of motion of the joint to meet the needs of different training cycles and promote the recovery of joint function.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a joint flexion and extension device for burn plastic rehabilitation training, and relates to the field of rehabilitation training equipment, the joint flexion and extension device comprises two placing frames, the bottom of each placing frame is fixedly connected with a supporting frame, the top of the placing frame at the rear end is movably connected with a rotating ring through a movable pin, and the rotating ring is fixedly connected with the supporting frame. A binding belt is arranged on the front surface of the rotating ring; the placing frame and the supporting frame are arranged and used for supporting the upper arm of a patient, the rotating ring and the binding belt are arranged and used for fixing the lower arm of the patient, the fixing frame is arranged and used for supporting the adjusting mechanism and improving the stability of the adjusting mechanism in the using process, and the adjusting mechanism is arranged and used for adjusting the angle of the rotating ring. The joint of a patient can be automatically driven to rotate in a reciprocating mode, the purpose of rehabilitation training is achieved, meanwhile, the motion amplitude of the joint can be controlled by adjusting the motion amplitude of the adjusting mechanism, and then the rehabilitation training device is suitable for different training periods.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of rehabilitation training equipment, concretely is a kind of joint flexion device for burn plastic rehabilitation training. BACKGROUND

[0002] Burn plastic is a comprehensive treatment method, aims at repairing skin damage left after burn, improving function and appearance, and rehabilitation training after burn plastic is an important link of recovery function and improvement of quality of life, and the purpose of rehabilitation training is to help patient recover motor ability, reduce dysfunction, improve skin elasticity and reduce psychological trauma;

[0003] Joint flexion rehabilitation training after burn plastic is an important component part to help patient recover joint function, prevent and treat joint contracture caused by burn or plastic surgery, and skin contracture after burn can cause the range of motion of joint to be limited, and system flexion rehabilitation training can effectively recover the range of motion of joint and prevent contracture, when carrying out joint rehabilitation training to arm, since the movement of arm after burn is not flexible, patient itself is difficult to carry out joint flexion training, to affect training effect.

[0004] Therefore, the utility model provides a kind of joint flexion device for burn plastic rehabilitation training to solve above-mentioned problems. UTILITY MODEL CONTENT

[0005] To solve the above technical problems, the utility model provides the following technical scheme:

[0006] A kind of joint flexion device for burn plastic rehabilitation training, including placing rack, the quantity of the placing rack is two, the bottom of the placing rack is fixedly connected with support frame, the top of rear end placing rack is movably connected with rotating ring by activity pin, the front of rotating ring is provided with restraint belt, the quantity of the restraint belt is two, two restraint belts are movably connected by magic tape, the back of rear end placing rack is fixedly connected with fixed frame, the inner chamber of fixed frame is provided with adjusting mechanism, the adjusting mechanism includes threaded column, the threaded column is located in the inner chamber of fixed frame, and is movably connected with the inner chamber of fixed frame by bearing, the surface of threaded column is screw-connected with threaded block, the top of threaded block is movably connected with adjusting plate by pivot, the top of adjusting plate is movably connected with the back of rotating ring by pivot.

[0007] Further, in the utility model, the bottom of rear end support frame is fixedly connected with servo motor, the output shaft of servo motor penetrates to the inner chamber of fixed frame, and is drivingly connected with the front end of threaded column.

[0008] Further, in the utility model, the back of the rotating ring is slidably connected with a movable ring, the front of the movable ring is fixedly connected with the back of the limiting sleeve.

[0009] Further, in the utility model, the back of the rotating ring is slidably connected with a movable ring, the front of the movable ring is fixedly connected with the back of the limiting sleeve.

[0010] Further, in the utility model, the back of the rotating ring is slidably connected with a movable ring, the front of the movable ring is fixedly connected with the back of the limiting sleeve.

[0011] Further, in the utility model, the upper end and the lower end of the back of the rotating ring are fixedly connected with support blocks, a threaded rod is movably connected between the two support blocks through a bearing, and the threaded rod is screwedly connected with the inner cavity of the movable ring.

[0012] Beneficial effects, the utility model has following beneficial effects:

[0013] The utility model discloses a placing frame and support frame are set up for the upper arm of the patient, and the distance between the front and back two placing frames and support frames can be adjusted, so the device is suitable for different patients, the rotating ring and the restraint belt are set up for fixing the lower arm of the patient, and the height of the restraint belt can be adjusted, so even if the length of the patient's arm is different, the device can be adapted to the arm of the patient by adjusting the position, thereby improving the practicability of the device, the fixed frame is set up for supporting the adjusting mechanism, improving the stability of the adjusting mechanism during use, the adjusting mechanism is set up for adjusting the angle of the rotating ring, thereby the joint of the patient can be automatically reciprocatingly rotated, achieving the purpose of rehabilitation training, and the movement amplitude of the adjusting mechanism can be adjusted to control the activity amplitude of the joint, thereby being suitable for different training periods. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the front structure schematic diagram of the utility model;

[0015] Figure 2 It is the connecting structure schematic diagram of the placing frame, support frame and positioning column of the utility model;

[0016] Figure 3 It is the front structure schematic diagram of the restraint belt of the utility model;

[0017] Figure 4 It is the front plane structure schematic diagram of the support frame of the utility model.

[0018] Fig.:

[0019] 1, the rack; 2, the support frame; 3, the rotating ring; 4, the restraint belt; 5, the fixed frame; 6, the adjusting mechanism; 601, the threaded column; 602, the threaded block; 603, the adjusting plate; 604, the servo motor; 7, the positioning column; 8, the anti-drop block; 9, the limiting column; 10, the limiting sleeve; 11, the movable ring; 12, the supporting block; 13, the threaded rod. DETAILED DESCRIPTION

[0020] In order to better understand the technical content of the utility model, specific embodiments are described below with the accompanying drawings. In the present disclosure, aspects of the utility model are described with reference to the accompanying drawings, which show many embodiments of the description. The embodiments of the present disclosure are not necessarily defined in all aspects of the utility model. It should be understood that the above-mentioned various concepts and embodiments, as well as those described in more detail below, can be implemented in any one of many ways, because the concepts and embodiments disclosed by the utility model are not limited to any implementation. In addition, some aspects of the utility model can be used alone, or used in any appropriate combination with other aspects of the utility model.

[0021] Example 1

[0022] As Figures 1-4 shown, the first embodiment of the utility model provides a joint flexion and extension device for burn plastic rehabilitation training, which comprises a rack 1, the number of racks 1 is two, the bottom of the rack 1 is fixedly connected with a support frame 2, the top of the rear end rack 1 is movably connected with a rotating ring 3 through a movable pin, the front of the rotating ring 3 is provided with a restraint belt 4, the number of restraint belts 4 is two, two restraint belts 4 are movably connected through magic tape, the back of the rear end rack 1 is fixedly connected with a fixed frame 5, the inner cavity of the fixed frame 5 is provided with an adjusting mechanism 6, the adjusting mechanism 6 comprises a threaded column 601, the threaded column 601 is located in the inner cavity of the fixed frame 5 and movably connected with the inner cavity of the fixed frame 5 through a bearing, the surface of the threaded column 601 is threadedly connected with a threaded block 602, the top of the threaded block 602 is movably connected with an adjusting plate 603 through a rotating shaft, and the top of the adjusting plate 603 is movably connected with the back of the rotating ring 3 through a rotating shaft.

[0023] As Figures 1-4As shown, the placement frame 1 and the support frame 2 are used for supporting the upper arm of the patient, while the distance between the front and rear placement frame 1 and the support frame 2 can be adjusted, so it is suitable for different patients, the rotating ring 3 and the restraint belt 4 are used for fixing the lower arm of the patient, while the height of the restraint belt 4 can be adjusted, so even if the length of the patient's arm is different, the device can be adapted to the patient's arm by adjusting the position, the fixing frame 5 is used for supporting the adjusting mechanism 6, the adjusting mechanism 6 is used for adjusting the angle of the rotating ring 3, which can automatically drive the patient's joint reciprocating rotation, so as to achieve the purpose of rehabilitation training, and the movement amplitude of the adjusting mechanism 6 can be adjusted to control the activity amplitude of the joint, and then it is suitable for different training periods.

[0024] Embodiment 2

[0025] Referring to Figure 2 and 4 , this is the second embodiment of the utility model, which is based on the previous embodiment.

[0026] In this embodiment, the bottom of the rear support frame 2 is fixedly connected with a servo motor 604, the output shaft of the servo motor 604 penetrates into the inner cavity of the fixed frame 5, and is in transmission connection with the front end of the threaded column 601.

[0027] The back surface of the front placement frame 1 and the support frame 2 is fixedly connected with a positioning column 7, the rear end of the upper and lower positioning columns 7 penetrates into the inner cavity of the rear placement frame 1 and the support frame 2 respectively, and is in sliding connection with the inner cavity thereof, and the back surface of the positioning column 7 is fixedly connected with an anti-dropping block 8.

[0028] As shown in Figure 2 and 4 , the servo motor 604 is used to drive the threaded column 601 to rotate, and when the threaded column 601 rotates, it can drive the threaded block 602 to move in the inner cavity of the fixed frame 5, and when the threaded block 602 moves, it can adjust the position of the lower end of the adjusting plate 603, so as to adjust the angle of the adjusting plate 603, and when the angle of the adjusting plate 603 deviates, it can adjust the angle of the rotating ring 3, so as to control the joint to achieve the purpose of rehabilitation training.

[0029] Embodiment 3

[0030] Referring to Figure 3 , this is the third embodiment of the utility model, which is based on the previous two embodiments.

[0031] In this embodiment, the front surface of the rotating ring 3 is fixedly connected with a limiting column 9 on both sides, the surface of the limiting column 9 is slidingly connected with a limiting sleeve 10, and the sides away from each other of the two restraint belts 4 are fixedly connected with the sides close to each other of the two limiting sleeves 10 respectively.

[0032] A movable ring 11 is slidably connected to the back of the rotating ring 3, and the front of the movable ring 11 is fixedly connected to the back of the limiting sleeve 10.

[0033] Support blocks 12 are fixedly connected to the upper and lower ends of the back of the rotating ring 3. A threaded rod 13 is movably connected between the two support blocks 12 through a bearing. The threaded rod 13 is threadedly connected to the inner cavity of the movable ring 11.

[0034] like Figure 3 As shown, the limiting post 9 is used to limit the limiting sleeve 10, and the limiting sleeve 10 is used to fix the restraint strap 4. The two restraint straps 4 work together to fix the patient's lower arm and fix it in the inner cavity of the rotating ring 3 so that the patient's upper arm can rotate with the rotation of the rotating ring 3 to achieve the purpose of rehabilitation training. By rotating the threaded rod 13, the height of the restraint strap 4 can be controlled in conjunction with the limiting sleeve 10 and the movable ring 11, so that the height of the restraint strap 4 can be adjusted.

[0035] In use, first adjust the distance between the two placement frames 1 according to the length of the patient's upper arm. Then rotate the threaded rod 13. When the threaded rod 13 rotates, it can control the height of the movable ring 11. The movable ring 11, together with the limiting sleeve 10, controls the height of the restraint strap 4 until it reaches the height of the patient's wrist. Then place the wrist between the two restraint straps 4 and fix it with Velcro. Then start the servo motor 604. The servo motor 604 can drive the threaded column 601 to rotate. When the threaded column 601 rotates, it can drive the threaded block 602 to move in the inner cavity of the fixed frame 5. When the threaded block 602 moves, it can adjust the position of the lower end of the adjusting plate 603, thereby adjusting the angle of the adjusting plate 603. When the angle of the adjusting plate 603 deflects, it can adjust the angle of the rotating ring 3, thereby achieving the purpose of controlling the joint for rehabilitation training. The range of motion of the joint is controlled by controlling the speed of the servo motor 604.

[0036] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0037] Although the utility model has disclosed as above with preferable embodiments, it is not used to limit the utility model. Those skilled in the art to which the utility model belongs can make various changes and decorations without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model is accurate according to the definition of the claims.

Claims

1. A joint flexion and extension device for burn and plastic surgery rehabilitation training, comprising a placement frame (1), characterized in that: The number of the placement racks (1) is two. The bottom of the placement rack (1) is fixedly connected to the support frame (2). The top of the rear placement rack (1) is movably connected to the rotating ring (3) through a movable pin. The front of the rotating ring (3) is provided with a binding strap (4). The number of binding straps (4) is two. The two binding straps (4) are movably connected by Velcro. The back of the rear placement rack (1) is fixedly connected to the fixing frame (5). The inner cavity of the fixing frame (5) is provided with an adjustment mechanism (6). The adjustment mechanism (6) includes a threaded post (601). The threaded post (601) is located in the inner cavity of the fixing frame (5) and is movably connected to the inner cavity of the fixing frame (5) through a bearing. The surface of the threaded post (601) is threadedly connected to a threaded block (602). The top of the threaded block (602) is movably connected to an adjustment plate (603) through a rotating shaft. The top of the adjustment plate (603) is movably connected to the back of the rotating ring (3) through a rotating shaft.

2. The joint flexion and extension device for burn and plastic surgery rehabilitation training as described in claim 1, characterized in that: A servo motor (604) is fixedly connected to the bottom of the support frame (2) at the rear end. The output shaft of the servo motor (604) passes through the inner cavity of the fixed frame (5) and is connected to the front end of the threaded column (601) for transmission.

3. The joint flexion and extension device for burn and plastic surgery rehabilitation training as described in claim 1, characterized in that: Positioning posts (7) are fixedly connected to the back of the front-end placement frame (1) and support frame (2). The rear ends of the two positioning posts (7) at the upper and lower ends respectively penetrate into the inner cavity of the rear-end placement frame (1) and support frame (2) and slide in connection with their inner cavities. Anti-detachment blocks (8) are fixedly connected to the back of the positioning posts (7).

4. The joint flexion and extension device for burn and plastic surgery rehabilitation training as described in claim 1, characterized in that: Limiting posts (9) are fixedly connected to both sides of the front of the rotating ring (3). Limiting sleeves (10) are slidably connected to the surface of the limiting posts (9). The two binding straps (4) are fixedly connected to the side of the two limiting sleeves (10) respectively.

5. The joint flexion and extension device for burn and plastic surgery rehabilitation training as described in claim 4, characterized in that: The rotating ring (3) has a movable ring (11) slidably connected to its back side, and the front side of the movable ring (11) is fixedly connected to the back side of the limiting sleeve (10).

6. The joint flexion and extension device for burn and plastic surgery rehabilitation training as described in claim 5, characterized in that: Support blocks (12) are fixedly connected to the upper and lower ends of the back of the rotating ring (3). A threaded rod (13) is movably connected between the two support blocks (12) through a bearing. The threaded rod (13) is threadedly connected to the inner cavity of the movable ring (11).