Children elbow joint stiffness rehabilitation training brace

Abstract

The invention designs a rehabilitation training brace for child elbow joint stiffness, which comprises a forearm supporting plate and an upper arm supporting plate, the forearm supporting plate and the upper arm supporting plate are rotatably connected through an arranged motor; a first arc-shaped groove is formed in the inner side wall of the forearm supporting plate, and an active exercise assembly is movably mounted on the first arc-shaped groove; the patient can do active exercise through the arranged active exercise assembly, and meanwhile, a spring can provide certain resistance to make the patient do exercise during active exercise; an induction strip is arranged, so that the current final motion state of the patient can be monitored by the patient and is recorded by a control module, and the patient can be reminded of increasing strength to do exercise next time through a voice broadcaster; a monitoring electrode and an electrode patch are arranged on the upper arm supporting plate; and the electrode patch is attached to the arm part of the patient, so that an electromyographic signal of the patient can be monitored, and the muscle strength condition of the patient can be acquired.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and particularly to a rehabilitation training brace for elbow joint stiffness in children. Background Art

[0002] After elbow joint surgery in children, such as supracondylar fracture of the humerus, fractures of the medial and lateral condyles of the humerus, and fractures of the radial neck, due to children's fear of exercise, untimely exercise, or incorrect exercise methods, the training effect of the elbow joint is often poor, resulting in limited flexion and extension functions of the elbow joint and affecting daily life. Children with elbow joint stiffness often have the elbow joint in a semi-flexed position. Compared with the healthy elbow, there are problems that the elbow joint cannot be fully extended and cannot be fully flexed.

[0003] Currently, there are also corresponding devices for flexion and extension exercises of the elbow joint. However, the current devices mainly focus on passive training of the forearm and upper arm. Although they can exercise to a certain extent, the current devices cannot select active training or passive training according to needs. At the same time, they cannot detect the muscle force state of the patient during exercise and remind the patient to continue to maintain or passively maintain it. There are still defects to a certain extent.

[0004] Therefore, a rehabilitation training brace for elbow joint stiffness in children is needed to solve the above technical problems. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention discloses a rehabilitation training brace for elbow joint stiffness in children. The brace can be directly worn on the arm and used. It can not only perform passive training on the stiff joint, but also be provided with a structure for the patient to perform active exercise. It can combine the recovery of passive exercise with active exercise to better achieve the exercise and recovery effect. At the same time, the brace is provided with a structure capable of monitoring the muscle force of the patient to monitor whether the patient has achieved the corresponding active exercise effect, and reminding the patient through a voice module, which can solve the problem that the current device cannot select active training or passive training according to needs.

[0006] In order to achieve the above technical effects, the present invention designs a rehabilitation training brace for elbow joint stiffness in children, including: a forearm support plate and an upper arm support plate. The forearm support plate and the upper arm support plate are rotatably connected, and they are rotatably connected through a motor provided therebetween. An active exercise component is movably installed on the inner side wall of the forearm support plate in a first arc-shaped groove.

[0007] The active exercise component comprises a rotating rod, a cross bar, a spreading rod, and a voice announcer; the rotating rod is symmetrically and movably mounted on the inner side wall of the forearm support plate; a cylindrical block is fixedly mounted on the side wall of the rotating rod close to the first arc-shaped groove, and the cylindrical block is slidably mounted on the first slide groove, a spring is also fixedly mounted inside the first slide groove, and a sensing strip is also arranged on the inner side wall of the first slide groove; the voice announcer is fixedly mounted on the side wall of the forearm support plate; the cross bar and the spreading rod are movably mounted on the ends of the rotating rod respectively; the cross bar and the spreading rod are movably connected by threads; by controlling the sliding position feedback of the cylindrical block inside the first arc-shaped slide groove, the voice announcer is controlled to give reminders to achieve different exercise purposes;

[0008] Furthermore, an arc groove is provided on the side wall of the other end of the rotating rod, and an electromagnet is fixedly provided on the inner wall of the forearm support plate corresponding to the position of the arc groove; the release or fixation of the rotating rod is controlled by controlling the on and off of the electromagnet;

[0009] Furthermore, a plurality of arc-shaped support plates are evenly and fixedly arranged at the lower end of the forearm support plate; a control module is fixedly installed on the other side of the forearm support plate opposite to the voice announcer;

[0010] Furthermore, a plurality of detection electrodes are evenly fixedly installed on the inner bottom end of the upper arm support plate, a plurality of fixing belts are fixedly installed on one side of the upper end of the upper arm support plate, an electrode patch is fixedly installed on the fixing belt, and a fixing buckle is fixedly provided on the upper end of the other side of the upper arm support plate corresponding to the position of the fixing belt;

[0011] Furthermore, a power supply is fixedly mounted on the outer side wall of the upper arm support plate, and a charging port is provided on the side wall of the upper arm support plate on one side of the power supply.

[0012] The beneficial effects of the present invention are:

[0013] The present invention designs a rehabilitation training brace for children with stiff elbow joints, comprising: a forearm support plate and an upper arm support plate, wherein the forearm support plate and the upper arm support plate are rotatably connected to each other, and the two are rotatably connected via a motor; a first arc-shaped groove is provided on the inner side wall of the forearm support plate, and an active exercise component is movably installed on the first arc-shaped groove; the active exercise component allows the patient to actively exercise, and the spring can provide a certain resistance during the active exercise to allow the patient to exercise, and the induction bar can also allow the patient to monitor the patient's current final exercise state and record it by the control module, so that the voice announcer can be used to remind the patient to increase the intensity of exercise next time;

[0014] In addition, monitoring electrodes and electrode patches are arranged on the upper arm support plate. The electrodes are attached to the patient's arm to monitor the patient's electromyographic signals and collect the patient's muscle force, so as to judge whether the patient has truly achieved the effect of exercise, so as to remind the patient through the voice announcer. This can solve the problem that the current device cannot select active training or passive training according to needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings required for describing the embodiment are briefly introduced below.

[0016] Figure 1 This is a schematic diagram of the overall structure of a children's elbow stiffness rehabilitation training brace;

[0017] Figure 2 It is another overall structural schematic diagram of the rehabilitation training brace for children with stiff elbow joints;

[0018] Figure 3 It is a top view of a rehabilitation training brace for children’s elbow stiffness;

[0019] Figure 4 This is an exploded view of a rehabilitation training brace for children with elbow stiffness;

[0020] Figure 5 It is a structural schematic diagram of the side wall of the forearm support plate of a rehabilitation training brace for children with stiff elbow joints.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1-forearm support plate, 11-first arc-shaped slide groove, 12-spring, 13-sensing strip, 14-arc-shaped support plate, 15-electromagnet, 2-upper arm support plate, 21-monitoring electrode, 22-fixing buckle, 23-fixing belt, 231-electrode patch, 232-charging port, 24-power supply, 3-motor, 4-control module, 5-active exercise component, 51-rotating rod, 52-second arc-shaped slide groove, 53-cross bar, 54-spreading rod, 6-voice announcer, 55-cylindrical block. DETAILED DESCRIPTION

[0023] Example 1

[0024] A rehabilitation training brace for children with stiff elbow joints comprises: a forearm support plate 1 and an upper arm support plate 2, wherein the forearm support plate 1 and the upper arm support plate 2 are rotationally connected to each other and are rotationally connected via a motor 3; a first arc-shaped groove is provided on the inner side wall of the forearm support plate 1, and an active exercise component 5 is movably mounted on the first arc-shaped groove; both the forearm support plate 1 and the upper arm support plate 2 are arc-shaped structures and the surfaces are covered with a cushion layer, wherein the cushion layer may be made of silicone rubber or fur.

[0025] The active exercise component 5 can allow the patient to perform active exercise. At the same time, the spring 12 can provide a certain resistance for the patient to exercise during active exercise. The induction strip 13 can also monitor the patient's current final exercise state and record it by the control module 4, so that the patient can be reminded to increase the intensity of exercise through the voice announcer 6 next time; specifically, the active exercise component 5 includes a rotating rod 51, a cross bar 53, a spreading rod 54, and a voice announcer 6; the rotating rod 51 is symmetrically and movably mounted on the inner wall of the forearm support plate 1; an arc groove is provided on the side wall of the other end of the rotating rod 51, and an electromagnet 15 is fixedly provided on the inner wall of the forearm support plate 1 corresponding to the position of the arc groove; the release or Fixed; a cylindrical block 5 is fixedly installed on the side wall of the rotating rod 51 close to the first arc groove, and the cylindrical block 5 is slidably installed on the first slide groove. A spring 12 is also fixedly installed inside the first slide groove, and a sensor strip 13 is also provided on the inner wall of the first slide groove; the voice announcer 6 is fixedly installed on the side wall of the forearm support plate 1; the ends of the rotating rod 51 are movably installed with the cross bar 53 and the spread rod 54; the cross bar 53 and the spread rod 54 are movably connected by threads; by controlling the sliding position feedback of the cylindrical block 5 inside the first arc slide groove 11, the voice announcer 6 is controlled to remind, so as to achieve different exercise purposes, and a control module 4 is fixedly installed on the other side of the forearm support plate 1 opposite to the voice announcer 6; when in use, the user first unlocks the active exercise component 5 through the control module 4. Specifically, the electromagnet 15 is controlled to be powered off so that the electromagnet 15 no longer has an attractive effect and the active exercise component 5 is released; then the patient holds the cross bar 53 and the spreader bar 54; then the elbow joint can be flexed while the cylindrical block 5 slides on the first arc-shaped slide groove 11, and the sliding of the cylindrical block 5 will contact the sensing bar 13. When in contact, the patient's maximum movement distance during exercise will be recorded by the control module 4. Specifically, the sensing bar 13 can be in the form of a resistance bar; the control module 4 records the current maximum flexion angle (maintaining the same resistance for a long time, or increasing the resistance for multiple times will be recorded as the maximum elbow flexion angle); the control module 4 compares the flexion movement record with the last time the patient exercises; the comparison is used to remind the patient whether a better exercise effect has been achieved compared with the last exercise.

[0026] At the same time, in this embodiment, a plurality of arc-shaped support plates 14 are evenly and fixedly arranged at the lower end of the forearm support plate 1; the arc-shaped support plate 14 can support the patient's arm, and the structure of the support plate conforms to the biological anatomical structure of the human arm and can adapt to the patient's arm.

[0027] Example 2

[0028] In this embodiment, based on the upper arm support plate 2 described in Embodiment 1, a number of detection electrodes are uniformly and fixedly installed at the inner bottom end of the upper arm support plate 2. A number of fixing straps 23 are fixedly installed on one side of the upper end of the upper arm support plate 2. An electrode patch 231 is fixedly installed on the fixing strap 23. On the other side of the upper end of the upper arm support plate 2 corresponding to the position of the fixing strap 23, a fixing buckle 22 is fixedly provided. The fixing buckle 22 and the fixing strap 23 are fixed to each other, so that the entire device can be fixed on the patient's arm. The detection electrodes and the electrode patch 231 are mainly used to be attached to the patient's skin to detect the surface electromyogram signal of the patient to reflect the patient's exercise condition. By being pasted on the surface of the human skin and being in close contact with the skin, the electrical signals generated by muscle activities can be collected.

[0029] Specifically, during the acquisition process, a good electrical contact is formed between the electrode patch area on the electrode piece and the human skin. When the arm muscles move, the potential changes inside the muscles will be transmitted to the electrode piece through the contact between the skin and the electrode piece, and then captured and recorded by the acquisition device. After these signals are amplified, filtered and other processed, they can be used to analyze the characteristics of muscle activities, specifically the contraction intensity and duration of the muscles. By judging the contraction intensity and duration of the muscles, it can be determined whether the patient's multiple exercises have achieved the corresponding effects. At the same time, the electrode patch 231 is prior art and will not be elaborated here too much. However, when the fixing strap 23 is fixed, it is necessary to ensure good contact between the electrode patch 231 and the skin.

[0030] In addition, in this embodiment, a power supply 24 is fixedly installed on the outer side wall of the upper arm support plate 2. The setting of the power supply 24 enables the entire brace to have the function of being used mobilely. At the same time, a charging port 232 is provided on the side wall of the upper arm support plate 2 on one side of the power supply 24, and the power can be supplied through the charging port 232.

[0031] The above-disclosed preferred embodiments of the present invention are only used to help explain the present invention. The preferred embodiments do not elaborate all the details, nor limit the invention to the specific embodiments described.

Claims

1. A rehabilitation training brace for elbow joint stiffness in children, characterized in that, The forearm support plate comprises a forearm support plate and an upper arm support plate, wherein the forearm support plate and the upper arm support plate are rotatably connected to each other and are rotatably connected to each other through a motor; a first arc-shaped groove is formed on the inner side wall of the forearm support plate, and an active exercise component is movably mounted on the first arc-shaped groove; The active exercise component includes a rotating rod, a cross bar, a spreading rod, and a voice announcer; the rotating rod is symmetrically and movably mounted on the inner wall of the forearm support plate; a cylindrical block is fixedly mounted on the side wall of the rotating rod close to the first arc-shaped groove, and the cylindrical block is slidably mounted on the first slide groove, a spring is also fixedly mounted inside the first slide groove, and a sensing strip is also provided on the inner wall of the first slide groove; the voice announcer is fixedly mounted on the side wall of the forearm support plate; the cross bar and the spreading rod are movably mounted on the ends of the rotating rod respectively; the cross bar and the spreading rod are movably connected by threads; by controlling the sliding position feedback of the cylindrical block inside the first arc-shaped slide groove, the voice announcer is controlled to give reminders to achieve different exercise purposes.

2. The rehabilitation training brace for elbow joint stiffness in children according to claim 1, characterized in that, An arc groove is provided on the side wall of the other end of the rotating rod, and an electromagnet is fixedly arranged on the inner wall of the forearm support plate corresponding to the position of the arc groove; the release or fixation of the rotating rod is controlled by controlling the on and off of the electromagnet.

3. The rehabilitation training brace for elbow joint stiffness in children according to claim 1, characterized in that, A plurality of arc-shaped support plates are evenly and fixedly arranged at the lower end of the forearm support plate; a control module is fixedly installed on the other side of the forearm support plate opposite to the voice announcer.

4. The rehabilitation training brace for elbow joint stiffness in children according to claim 1, characterized in that, A number of detection electrodes are evenly fixedly installed on the inner bottom end of the upper arm support plate, a number of fixing belts are fixedly installed on one side of the upper end of the upper arm support plate, electrode patches are fixedly installed on the fixing belts, and a fixing buckle is fixedly provided on the upper end of the other side of the upper arm support plate corresponding to the position of the fixing belt.

5. The rehabilitation training brace for elbow joint stiffness in children according to claim 1, characterized in that, A power source is fixedly mounted on the outer side wall of the upper arm support plate, and a charging port is arranged on the side wall of the upper arm support plate on one side of the power source.

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