An elbow and wrist joint rehabilitation training device

Abstract

This utility model belongs to the field of medical device technology, and mainly relates to an elbow and wrist joint rehabilitation training device. It includes a fixation component for stabilizing the patient's elbow, a transmission component connected to the fixation component, and a rotating arm rotatably mounted on the rotating component. The rotating arm is held by the patient's hand, and the transmission component drives the rotating arm to rotate, thereby causing flexion and extension movements of the patient's wrist and elbow. The transmission component is electrically connected to a hand controller, which controls the operation of the rotating component. Through the coordinated operation of the fixation component, the transmission component, and the hand controller, the targeting and effectiveness of rehabilitation training are improved, thereby enhancing the rehabilitation training effect.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and mainly relates to an elbow and wrist joint rehabilitation training device. Background Technology

[0002] Most human activities require the use of the hands, and hand movements usually require the coordination of multiple joints such as the wrist and elbow. When accidents such as falls occur, most people are used to using their hands for support, which often causes damage to the wrist and elbow joints.

[0003] Relevant clinical medical evidence shows that correct and scientific rehabilitation training plays a very important role in the recovery and improvement of limb motor function. It can not only maintain joint range of motion and prevent joint contractures and adhesions, and prevent and reduce various complications, but also significantly improve patients' motor function. However, at present, there is a severe shortage of professional nursing staff. On the one hand, nursing staff need to carry out rehabilitation training for multiple postoperative patients, so the time spent on the same patient is very limited. On the other hand, nursing staff are easily fatigued due to repetitive rehabilitation operations, which affects the rehabilitation effect. Traditional rehabilitation treatment not only places high demands on rehabilitation physicians, but also consumes human and material resources, bringing a huge economic burden to patients, while often resulting in poor training effects. Utility Model Content

[0004] This invention provides an elbow and wrist joint rehabilitation training device to solve the problem of poor rehabilitation training effects in the prior art.

[0005] To solve the above problems, the present invention adopts the following technical solution: An elbow and wrist joint rehabilitation training device includes a fixation component for fixing the patient's elbow, a transmission component connected to the fixation component, and a rotary arm mounted on the rotary component. The rotary arm is used to be held by the patient's hand, and the transmission component drives the rotary arm to rotate so as to drive the patient's wrist and elbow to perform flexion and extension movements. The transmission assembly is electrically connected to a hand controller, which is used to control the operation of the rotating assembly.

[0006] It has the following beneficial effects: The fixation component can accurately fix the patient's elbow. Its core function is to ensure the stability of the elbow position during rehabilitation training. Stable elbow fixation can avoid secondary injury caused by limb shaking during training, and provide a stable foundation for the flexion and extension movements of the wrist and elbow. At the same time, by scientifically and reasonably fixing the elbow, it can effectively standardize the patient's training posture, so that the training force is more concentrated on the joint area that needs rehabilitation, improve the pertinence and effectiveness of rehabilitation training, and thus improve the training effect. The transmission component transmits power precisely and stably to the rotary arm, ensuring the smoothness and continuity of the rotary arm's rotation. This allows the patient's wrist and elbow to be subjected to even force during flexion and extension movements, reducing adverse stimulation to the joints caused by movement abruptness. At the same time, the transmission component can flexibly adjust the speed and intensity of movement through a hand controller according to the patient's rehabilitation stage and physical condition, meeting the training intensity needs of patients at different rehabilitation stages and helping patients to carry out rehabilitation training step by step. The hand controller is electrically connected to the transmission components, giving patients the ability to control the training process independently. Patients can start, pause, or adjust the training mode at any time based on their own real-time feelings, making the training process more humane. This autonomy and controllability not only enhances patients' training confidence and enthusiasm, but also allows them to stop training in time if they feel uncomfortable during the training process, ensuring patient safety.

[0007] Furthermore, the transmission assembly includes an electric power assist module and a reducer that is drivenly connected to the electric power assist module. The hand controller is electrically connected to the electric power assist module, and the slewing arm is drivenly connected to the reducer.

[0008] Furthermore, the electric power assist module is electrically connected to a power adapter.

[0009] It has the following beneficial effects: the power adapter is used for external power supply to provide power for the operation of the electric power assist module.

[0010] Furthermore, the slewing arm includes a connector rotatably mounted on the reducer and a grip rod connected to the connector, wherein the rotation axis of the connector is perpendicular to the extension axis of the grip rod.

[0011] Furthermore, the fixing assembly includes a forearm fixing member and a rear arm fixing member, and the fixing height of the rear arm fixing member in the vertical direction is adjustable.

[0012] It has the following beneficial effects: The physiological structure of the elbow and hind arm varies from person to person. The height of the hind arm fixation piece is adjustable in the vertical direction, which can accurately fit the actual shape of the hind arm of different patients. For patients with longer hind arms or special muscle distribution, raising the height of the fixation piece can avoid restricting normal elbow movement due to the fixation position being too low; while for patients with shorter hind arms, lowering the height of the fixation piece can prevent the fixation from being too high and resulting in insecure fixation, ensuring that the elbow is in a stable and comfortable position during rehabilitation training, thus greatly improving the adaptability of the equipment.

[0013] Furthermore, the fixation component is provided with a heating sleeve, which is used to heat the patient's elbow.

[0014] It has the following beneficial effects: By heating the patient's elbow, the heating sleeve can dilate local blood vessels and accelerate blood flow. Good blood circulation can deliver more oxygen and nutrients to the elbow tissues and joints, which helps to repair damaged tissues. At the same time, it can remove metabolic waste in time, reduce the burden on the joints, and create more favorable physical conditions for rehabilitation training. For patients with elbow and wrist injuries, pain is a common problem. The warmth generated by the heating cap can stimulate nerve endings, inhibit the transmission of pain signals, and play a certain role in analgesia. At the same time, the warmth can also relieve pain caused by muscle tension and spasms, reducing the pain experienced by patients during training, making them more willing to cooperate with training, and improving the enthusiasm and persistence of rehabilitation training. The muscles around the elbow can be deeply relaxed under the warmth of the heating sleeve. After the muscles are relaxed, their flexibility and extensibility are enhanced. During rehabilitation training, the risk of muscle strain can be reduced, and joint movement can be smoother and more flexible. Moreover, the relaxed muscle state helps patients control training movements more accurately, improve training quality, and promote the recovery of limb function. The heat therapy of the heating cap can be used in conjunction with rehabilitation training to play a synergistic role in treatment. It can accelerate the absorption of drugs in the elbow (if combined with drug treatment) and improve the effect of rehabilitation treatment. In addition, continuous heat stimulation helps to improve the stiffness of the elbow joint. For patients with long-term illness or limited joint movement after surgery, using the heating cap before rehabilitation training can make the joint easier to move, lay a good foundation for rehabilitation training, and shorten the rehabilitation period.

[0015] Furthermore, the distance between the transmission component and the fixed component is adjustable.

[0016] It has the following beneficial effects: There are significant differences in limb length and arm span among different patients. The distance between the transmission component and the fixed component is adjustable, which allows the rehabilitation trainer to better fit the body structure of various patients. For tall patients, the distance between the two can be increased to avoid limb extension being restricted due to the distance being too close, and to ensure that the training movements can be performed completely and smoothly. For smaller patients, the distance can be shortened to prevent patients from having difficulty exerting force or experiencing postural deformation due to the distance being too large, thus ensuring the effectiveness and safety of rehabilitation training. Patients require different ranges and intensities of training movements at different stages of rehabilitation. The adjustable distance design allows patients or medical staff to flexibly adjust the distance according to the actual rehabilitation situation. For example, in the early stages of rehabilitation, when the patient's joint mobility is limited, shortening the distance between the transmission component and the fixed component allows the rotating arm to drive the joint to perform small-amplitude, low-intensity flexion and extension movements, avoiding excessive traction and injury. As rehabilitation progresses and the patient's joint function gradually recovers, increasing the distance between the two components can achieve a greater range of joint movements, further enhancing muscle strength and joint flexibility, and providing patients with a more personalized training plan that fits the rehabilitation process. The appropriate distance between the transmission components and the fixed components can reduce the pressure and discomfort caused by improper limb position during training. When the distance is adjusted to match the patient's body structure, the patient can train more naturally and relaxedly, which helps to reduce psychological pressure, improve training tolerance and compliance, and thus participate more actively in rehabilitation training, thereby improving the overall rehabilitation effect.

[0017] Furthermore, a telescopic rod is connected between the transmission component and the fixed component, and the telescopic rod extends and retracts to change the distance between the transmission component and the fixed component. Attached Figure Description

[0018] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein: Figure 1 This is a first-view structural schematic diagram of the present invention; Figure 2 This is a structural schematic diagram of the present invention from a second perspective.

[0019] Explanation of reference numerals in the attached figures: 1. Hand controller; 2. Electric power assist module; 3. Reducer; 4. Connector; 5. Grip bar; 6. Forearm fixing component; 7. Rear arm fixing component; 8. Telescopic bar; 9. Power adapter; 10. Heating sleeve; 11. Rotary arm; 12. Fixing component; 13. Transmission component. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] The following describes various non-limiting embodiments of this utility model. Any number of elements in the accompanying drawings is for illustrative purposes only and not for limitation, and any naming is for distinction only and has no limiting meaning. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] like Figure 1 , Figure 2 As shown, an elbow and wrist joint rehabilitation training device includes a fixation component 12 for stabilizing the patient's elbow, a transmission component 13 connected to the fixation component 12, and a rotary arm 11 rotatably mounted on the rotary component. The rotary arm 11 is held by the patient's hand, and the transmission component 13 drives the rotary arm 11 to rotate, thereby causing the patient's wrist and elbow to perform flexion and extension movements. The transmission component 13 is electrically connected to a hand controller 1, which controls the operation of the rotary component. In this embodiment, the hand controller 1 controls the rotation angle range, treatment time, speed, etc. of the rotary arm 11 through the transmission component 13.

[0023] In this embodiment, the fixation component 12 can precisely fix the patient's elbow, and its core function is to ensure the stability of the elbow position during rehabilitation training. Stable elbow fixation can avoid secondary injuries caused by limb swaying during training and provide a stable foundation for the flexion and extension movements of the wrist and elbow. At the same time, by scientifically and reasonably fixing the elbow, the patient's training posture can be effectively standardized, so that the training force is more concentrated on the joint area that needs rehabilitation, improving the pertinence and effectiveness of rehabilitation training, thereby improving the training effect.

[0024] The transmission assembly 13 transmits power precisely and stably to the rotary arm 11, ensuring the smoothness and continuity of the rotary arm 11's rotation. This allows the patient's wrist and elbow to receive even force during flexion and extension movements, reducing adverse stimulation to the joints caused by movement abruptness. Simultaneously, the transmission assembly 13 can be flexibly adjusted in terms of movement speed and intensity via the hand controller 1, according to the patient's rehabilitation stage and physical condition. This meets the training intensity needs of patients at different rehabilitation stages, helping them to gradually progress in their rehabilitation training.

[0025] The rotary arm 11 is specifically designed for patient hand grip, with an ergonomic shape that provides a comfortable grip, reduces hand fatigue, and allows patients to perform rehabilitation training for longer periods. Driven by the transmission component 13, the rotary arm 11 moves the patient's wrist and elbow in flexion and extension movements. By simulating everyday joint activities, it effectively strengthens the muscles around the joint, improves joint range of motion and flexibility, and promotes the recovery of limb function. Moreover, the movement trajectory of the rotary arm 11 is scientifically designed to ensure standardized rehabilitation training movements and help patients establish correct movement patterns.

[0026] The hand controller 1 is electrically connected to the transmission assembly 13, giving the patient the ability to autonomously control the training process. The patient can start, pause, or adjust the training mode at any time based on their real-time sensations using the hand controller 1, making the training process more user-friendly. This autonomy and controllability not only enhances the patient's confidence and enthusiasm for training but also allows for timely cessation of training if discomfort occurs, ensuring patient safety.

[0027] The hand controller 1 can also be used and controlled by people other than the patient.

[0028] Specifically, the transmission assembly 13 includes an electric power assist module 2 and a reducer 3 that is driven by the electric power assist module 2. The hand controller 1 is electrically connected to the electric power assist module 2, and the slewing arm 11 is driven by the reducer 3. The electric power assist module 2 drives the reducer 3, and the reducer 3 drives the slewing arm 11 to rotate. The electric power assist module 2 is electrically connected to a power adapter 9. The power adapter 9 provides power from an external power source to power the operation of the electric power assist module 2.

[0029] Specifically, the slewing arm 11 includes a connector 4 rotatably mounted on the reducer 3 and a handle 5 connected to the connector 4, wherein the rotation axis of the connector 4 is perpendicular to the extension axis of the handle 5.

[0030] Specifically, the fixing component 12 includes a forearm fixing member 6 and a rear arm fixing member 7, and the fixing height of the rear arm fixing member 7 in the vertical direction is adjustable.

[0031] Each person's elbow and hindarm physiological structure is different. The hindarm fixation piece 7 has an adjustable height in both vertical directions, which can precisely fit the actual shape of different patients' hindarms. For patients with longer hindarms or special muscle distribution, raising the height of the fixation piece can prevent the elbow from being restricted due to the fixation position being too low. For patients with shorter hindarms, lowering the height of the fixation piece can prevent the fixation from being too high and resulting in insecure fixation, ensuring that the elbow is in a stable and comfortable position during rehabilitation training, thus greatly improving the adaptability of the equipment.

[0032] Properly adjusting the height of the posterior arm fixation device can effectively mitigate training risks. During rehabilitation training, if the posterior arm fixation device (7) is not at the correct height, uneven force distribution during wrist and elbow flexion and extension movements may lead to joint dislocation or muscle strain. By flexibly adjusting the fixation height, the patient's limbs can distribute force evenly during training, maintaining correct posture, reducing the likelihood of accidents, and providing a safer rehabilitation training environment.

[0033] Patients at different stages of rehabilitation have varying joint mobility and rehabilitation goals. In the early stages of rehabilitation, patients have limited joint mobility. Lowering the height of the posterior arm fixation device (7) can restrict the range of motion, allowing for low-amplitude, low-intensity rehabilitation training and preventing injury from overexertion. As rehabilitation progresses and joint function gradually recovers, raising the fixation device height allows for a wider range of motion, further enhancing joint flexibility and muscle strength, enabling personalized rehabilitation training programs, and improving rehabilitation outcomes.

[0034] The height-adjustable posterior arm fixation device 7 effectively reduces patient discomfort during training. When the fixation height matches the patient's body characteristics, the patient's posterior arm will not experience pain or numbness due to pressure from the fixation device, allowing them to participate in training in a more relaxed state. A comfortable training experience helps alleviate patient psychological stress, improves their acceptance and cooperation with rehabilitation training, and promotes a smooth rehabilitation process.

[0035] The adjustable height of the posterior arm fixation component 7 allows the rehabilitation trainer to be suitable for patients of different ages and body types. Whether the patient is a child, teenager, or adult, tall or short, they can adjust the height of the fixation component to make the rehabilitation trainer effective. This effectively reduces the cost of purchasing multiple rehabilitation devices due to individual patient differences, and improves the efficiency and application range of the equipment.

[0036] In this embodiment, the fixation component 12 is equipped with a heating sleeve 10, which is used to heat the patient's elbow. The heating sleeve 10 heats the patient's elbow, causing local vasodilation and accelerating blood flow. Improved blood circulation delivers more oxygen and nutrients to the elbow tissues and joints, aiding in the repair of damaged tissues. It also removes metabolic waste, reducing the burden on the joint and creating more favorable physical conditions for rehabilitation training.

[0037] Pain is a common problem for patients with elbow and wrist injuries. The warmth generated by the heating sleeve 10 can stimulate nerve endings, inhibit the transmission of pain signals, and play a certain role in pain relief. At the same time, the warmth can also relieve pain caused by muscle tension and spasms, reducing the pain experienced by patients during training, making them more willing to cooperate with the training, and improving their enthusiasm and persistence in rehabilitation training.

[0038] The muscles around the elbow can be deeply relaxed under the warmth of the heating sleeve 10. After relaxation, the muscles become more flexible and extensible, reducing the risk of muscle strain during rehabilitation training and making joint movement smoother and more flexible. Moreover, the relaxed muscle state helps patients control training movements more precisely, improving training quality and promoting the recovery of limb function.

[0039] The warmth provides patients with both psychological and physical comfort. Especially in cold environments or when patients have poor blood circulation, the heating cap 10 can effectively dispel the cold, allowing patients to perform rehabilitation training in a comfortable state. This reduces resistance caused by discomfort, enhances patients' acceptance and cooperation with rehabilitation training, and thus helps them better complete the rehabilitation training plan.

[0040] The thermotherapy provided by the heating cap 10 can be used in conjunction with rehabilitation training to achieve a synergistic therapeutic effect. It can accelerate the absorption of medication in the elbow (if used in conjunction with medication), thus enhancing the effectiveness of rehabilitation. In addition, continuous heat stimulation helps improve stiffness in the elbow joint. For patients with long-term illness or limited joint mobility after surgery, using the heating cap 10 before rehabilitation training can make the joint more mobile, laying a good foundation for rehabilitation training and shortening the rehabilitation period.

[0041] In this embodiment, the distance between the reducer 3 and the forearm fixing member 6 is adjustable. Specifically, a telescopic rod 8 is connected between the reducer 3 and the forearm fixing member 6, and the telescopic rod 8 extends and retracts to change the distance between the reducer 3 and the forearm fixing member 6.

[0042] Significant differences exist in limb length and arm span among patients. The adjustable distance between the reducer 3 and the forearm fixation component 6 allows the rehabilitation trainer to better conform to the body structure of various patients. For tall patients, the distance can be increased to avoid restricted limb extension due to excessive closeness, ensuring that training movements can be performed completely and smoothly. For smaller patients, the distance can be shortened to prevent difficulty in exerting force or postural deformation during training, ensuring the effectiveness and safety of rehabilitation training. Patients require varying ranges and intensities of training movements at different stages of rehabilitation. The adjustable distance design allows patients or healthcare professionals to flexibly adjust the distance based on their individual rehabilitation progress. For example, in the early stages of rehabilitation, when joint mobility is limited, shortening the distance between the reducer 3 and the forearm fixation piece 6 allows the rotating arm 11 to perform small-amplitude, low-intensity flexion and extension movements, preventing overstretching and potential injury. As rehabilitation progresses and joint function gradually recovers, increasing the distance between the two components enables greater joint movement, further enhancing muscle strength and joint flexibility, and providing patients with a more personalized training plan tailored to their rehabilitation process. A suitable distance between the reducer 3 and the forearm fixation component 6 can reduce the pressure and discomfort experienced by the patient during training due to improper limb positioning. When the distance is adjusted to match the patient's body structure, the patient can train more naturally and relaxedly, which helps reduce psychological stress, improve training tolerance and compliance, and thus participate more actively in rehabilitation training, thereby enhancing the overall rehabilitation effect.

[0043] By adjusting the distance between the reducer 3 and the forearm fixation piece 6, a rehabilitation training device can be used for patients of different ages and body types. This reduces the cost for medical institutions or families to purchase multiple rehabilitation devices due to individual patient differences, while also improving the efficiency and utilization of the device, allowing the rehabilitation training device to play its maximum value in different scenarios.

[0044] The working process of this utility model is as follows: The elbow is fixed by the fixation component 12, and the patient's hand holds the handle 5 of the rotary arm 11. The rotation angle, rotation speed and rotation treatment time of the rotary arm 11 are controlled by the hand controller 1.

Claims

1. A wrist rehabilitation training device, characterized in that, It includes a fixation component for stabilizing the patient's elbow, a transmission component connected to the fixation component, and a rotary arm mounted on the rotary component. The rotary arm is used to be held by the patient's hand, and the transmission component drives the rotary arm to rotate so as to drive the patient's wrist and elbow to perform flexion and extension movements. The transmission assembly is electrically connected to a hand controller, which is used to control the operation of the rotating assembly.

2. The elbow-wrist joint rehabilitation training device according to claim 1, characterized in that, The transmission assembly includes an electric power assist module and a reducer that is driven by the electric power assist module. The hand controller is electrically connected to the electric power assist module, and the slewing arm is driven by the reducer.

3. The elbow-wrist joint rehabilitation trainer according to claim 2, characterized in that, The electric power assist module is electrically connected to a power adapter.

4. The elbow-wrist joint rehabilitation trainer according to claim 3, characterized in that, The slewing arm includes a connector rotatably mounted on a reducer and a handle connected to the connector, wherein the rotation axis of the connector is perpendicular to the extension axis of the handle.

5. The elbow-wrist joint rehabilitation trainer according to claim 4, characterized in that, The fixing components include a forearm fixing member and a rear arm fixing member, and the fixing height of the rear arm fixing member in the vertical direction is adjustable.

6. The elbow-wrist joint rehabilitation trainer according to claim 5, characterized in that, The fixation component is equipped with a heating sleeve, which is used to heat the patient's elbow.

7. The elbow-wrist joint rehabilitation training device according to any one of claims 1-6, characterized in that, The distance between the transmission component and the fixed component is adjustable.

8. The elbow-wrist joint rehabilitation trainer according to claim 7, characterized in that, A telescopic rod connects the transmission component and the fixed component, and the telescopic rod extends and retracts to change the distance between the transmission component and the fixed component.

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