Hand function training device

Abstract

The utility model relates to the field of medical instruments, and discloses a hand function training device which comprises an electroencephalogram cap and a muscle stimulator, the electroencephalogram cap is electrically connected with the muscle stimulator, the electroencephalogram cap is used for collecting electroencephalogram signals, and the muscle stimulator is used for receiving the electroencephalogram signals and sending out electrical stimulation signals based on the electroencephalogram signals. According to the hand function training device, training of the hand muscles and the central nervous system of the patient can be achieved, the hand muscles of the patient are trained through the hand function training device, the autonomous training consciousness of the patient can be stimulated, brain nerve repairing and remodeling of the patient are facilitated, and the rehabilitation effect of the patient is improved.

Description

Technical Field

[0001] The present application relates to the field of medical devices, and in particular to a hand function training device. Background Art

[0002] Stroke (commonly known as stroke) is a clinical syndrome of brain dysfunction caused by sudden cerebrovascular disease. Common clinical manifestations include poor motor control of the affected upper limb, hand dysfunction, etc. At present, most of the common hand function rehabilitation equipment on the market adopts peripheral intervention treatment, and there are few direct intervention treatments on the patient's brain.

[0003] Common rehabilitation methods include external force therapy and low-frequency electrical stimulation. External force therapy is a passive rehabilitation in which an external force (therapist or mechanical equipment) pulls the patient's hand movement. It can drive muscle contraction and relaxation, but it cannot fully guide the patient's active movement intention, which is not conducive to the patient's brain nerve repair and remodeling, and the effect of rebuilding the connection between the central nervous system and the peripheral nervous system is not good enough. Low-frequency electrical stimulation applies microcurrents to depolarize motor neurons and generate excitement. The conduction of excitement causes muscle fibers to contract, exercises muscle tension and elasticity, and increases joint mobility, thereby playing a rehabilitation role. The effect of stimulating muscles and nerves is more obvious than external force traction, but this type of treatment also fails to stimulate patients to exercise autonomously. Summary of the invention

[0004] In order to improve the rehabilitation effect of patients, the present application provides a hand function training device.

[0005] The present application provides a hand function training device, which adopts the following technical solution:

[0006] A hand function training device comprises: an EEG cap and a muscle stimulator, wherein the EEG cap and the muscle stimulator are electrically connected, the EEG cap is used to collect EEG signals, and the muscle stimulator is used to receive the EEG signals and send out electrical stimulation signals based on the EEG signals.

[0007] By adopting the above technical solution, when the patient needs to train hand function, the patient wears an EEG cap and installs a muscle stimulator on the hand tendon. The patient imagines hand movement according to the voice prompt. Every time the patient imagines hand movement, the EEG cap collects the EEG signals generated during the imagination process, and the muscle stimulator receives the EEG signals collected by the EEG cap, and gives electrical stimulation to the hand muscles in the corresponding position of the patient based on the EEG signals, so as to realize the training of the patient's hand muscles and central nervous system. Training the patient's hand muscles in this way can stimulate the patient's awareness of autonomous exercise, help the patient's brain nerve repair and remodeling, and improve the rehabilitation effect.

[0008] Exemplarily, the EEG cap includes a cap body and a plurality of collecting electrodes, and the plurality of collecting electrodes are distributed inside the cap body for collecting the EEG signals.

[0009] By adopting the above technical solution, multiple collection electrodes are distributed inside the cap. After the patient wears the EEG cap, the EEG cap can monitor the EEG activities of multiple brain regions at the same time and provide more comprehensive information.

[0010] Exemplarily, the muscle stimulator includes a signal processor, an electric stimulator, and a muscle stimulation piece. The signal processor is electrically connected to the electric stimulator, and the electric stimulator and the muscle stimulation piece are electrically connected. The signal processor is used to receive the EEG signal and perform noise reduction processing on the EEG signal. The electric stimulator is used to receive the EEG signal after noise reduction processing and send an electric stimulation signal to the muscle stimulation piece based on the EEG signal after noise reduction processing.

[0011] By adopting the above technical solution, the signal processor receives the EEG signal and performs noise reduction processing on it, which can reduce interference from the environment or other noise sources, thereby improving the quality and reliability of the EEG signal. The electrical stimulator receives the EEG signal after noise reduction processing and controls the muscle stimulation piece based on these signals.

[0012] Exemplarily, the EEG cap further includes a signal amplifier, which is electrically connected to the cap body and is used to receive the EEG signals collected by the collection electrodes and amplify the EEG signals.

[0013] By adopting the above technical solution, the signal amplifier helps to enhance the strength of the collected EEG signals, thereby further improving the quality of the EEG signals.

[0014] Exemplarily, the electrical stimulation signal is a low-frequency pulse current.

[0015] By adopting the above technical solutions, low-frequency pulse current can help improve nerve and muscle function. Specifically, applying low-frequency pulse current to specific muscles can help improve muscle tension, accelerate blood circulation and lymphatic circulation, increase joint mobility, and provide the central nervous system with the body's muscle contraction and relaxation sensations, promote the reconstruction of nerve pathways and the recovery of muscle function after injury, and gradually restore the brain's control over hemiplegic muscles.

[0016] Exemplarily, the electric stimulator also includes a lead wire, and the muscle stimulation piece includes an electrode buckle, a gasket and a sticker, one side of the gasket is connected to the electrode buckle, and the other side is used to fit with the sticker, the surface of the gasket used to fit with the sticker is coated with conductive glue, and the electrode buckle is connected to the lead wire.

[0017] By adopting the above technical solution, the conductive glue coated on the gasket helps to ensure good electrical signal conduction, thereby improving the effect and efficiency of stimulation. At the same time, the conductive glue also helps to fix the muscle stimulation piece on the skin.

[0018] Exemplarily, the muscle stimulation sheets are provided in plurality.

[0019] By adopting the above technical solution, multiple muscle stimulation sheets allow multiple areas or multiple muscle groups to be stimulated simultaneously, which helps to improve the efficiency of the treatment.

[0020] Exemplarily, the collection electrode includes a mounting base and a collection head, a plurality of mounting grooves are provided inside the cap body, the collection head is connected to the mounting base, and the mounting base is detachably connected to the mounting grooves.

[0021] By adopting the above technical solution, the connection between the mounting base and the mounting slot is detachable, making it relatively easy to replace or maintain the collection electrode. If the collection electrode is damaged or needs to be repaired, it can be easily removed and replaced without replacing the entire EEG cap.

[0022] Exemplarily, the collection head is made of conductive rubber.

[0023] By adopting the above technical solution, the conductive rubber has good electrical conductivity and sufficient flexibility and elasticity. The collection head is a conductive rubber product that can effectively transmit electrical signals or currents, and can also make the collection head adapt to different head shapes and slight deformations, thereby improving the comfort of patients when wearing it.

[0024] Exemplarily, a voice announcer is also included, and the voice announcer is used to play action prompt sounds.

[0025] By adopting the above technical solution, when the patient is undergoing rehabilitation training, after the patient wears the EEG cap and installs the muscle stimulator, the voice announcer plays the action prompt sound to guide the patient to perform corresponding movement imagination according to the action prompt sound, so that the EEG cap can timely collect the EEG signals generated by the patient's spontaneous imagination of body movement, and the muscle stimulator can also convert the movement imagination into an electrical stimulation signal, giving the patient's muscles a certain stimulation, so as to achieve the training of the affected side's neuromuscular and central nervous system.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. The EEG cap collects the EEG signals generated by the patient during the imagination process. The muscle stimulator receives the EEG signals collected by the EEG cap and gives electrical stimulation to the patient's hand muscles at the corresponding position based on the EEG signals, which can exercise the patient's hand muscles and central nervous system. Training the patient's hand muscles in this way can stimulate the patient's awareness of autonomous exercise, help the patient's brain nerves repair and reshape, and improve the rehabilitation effect.

[0028] 2. By setting up multiple collection electrodes inside the cap, after the patient wears the EEG cap, the EEG cap can monitor the EEG activities of multiple brain regions at the same time and provide more comprehensive information.

[0029] 3. Electrical stimulation of the patient's hand muscles can help improve muscle tone, speed up blood and lymphatic circulation, increase joint mobility, and provide the central nervous system with the body's muscle contraction and relaxation sensations, promote the reconstruction of neural pathways and recovery of muscle function after injury, and gradually restore the brain's control over the hemiplegic muscles. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The present invention is a structural schematic diagram of a hand function training device.

[0031] Figure 2 yes Figure 1 A magnified view of point A.

[0032] Description of reference numerals:

[0033] 1. EEG cap; 11. cap body; 111. mounting slot; 12. acquisition electrode; 121. mounting base; 122. acquisition head; 13. signal amplifier; 2. muscle stimulator; 21. signal processor; 22. electrical stimulator; 23. muscle stimulator sheet; 231. electrode buckle; 232. gasket; 233. sticker; 24. lead wire. DETAILED DESCRIPTION

[0034] The present application is further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0035] The present application embodiment discloses a hand function training device. Figure 1 A hand function training device includes: an EEG cap 1 and a muscle stimulator 2, the EEG cap 1 and the muscle stimulator 2 are electrically connected, the EEG cap 1 is used to collect EEG signals, the muscle stimulator 2 is used to receive the EEG signals and send electrical stimulation signals based on the EEG signals.

[0036] Specifically, the EEG cap 1 includes a cap body 11 and a plurality of collection electrodes 12, and the plurality of collection electrodes 12 are distributed inside the cap body 11 for collecting EEG signals. When the human body imagines different parts of the body moving, the activated brain areas are also different. The plurality of collection electrodes 12 are distributed inside the cap body 11 to obtain EEG signals from different brain areas. In different embodiments, the collection electrode 12 can be connected to the EEG cap 1 in different ways. As an example, in the embodiment of the present application, the collection electrode 12 is detachably connected to the EEG cap 1. The detachable connection between the collection electrode 12 and the EEG cap 1 makes it relatively easy to replace and maintain the collection electrode 12, and when the collection electrode 12 is damaged and the EEG cap 1 cannot work normally, the collection electrode 12 is disassembled and replaced, which reduces the maintenance cost of the EEG cap 1. Further, the collection electrode 12 disclosed in the embodiment of the present application includes a mounting base 121 and a collection head 122, and a plurality of mounting grooves 111 are provided inside the cap body 11, and the collection head 122 is connected to the mounting base 121, and the mounting base 121 is detachably connected to the mounting groove 111. In different embodiments, the mounting base 121 and the mounting groove 111 may be detachably connected in different ways. The mounting base 121 and the mounting groove 111 may be detachably connected by a threaded connection or by a magnetic connection.

[0037] In order to improve the comfort of wearing the EEG cap 1, the acquisition head 122 is made of conductive rubber. In different embodiments, the structure of the acquisition head 122 can be in different shapes, such as a semi-spherical shape, an ellipsoidal shape, or an air cushion electrode with multiple contacts.

[0038] Furthermore, in order to improve the quality of the collected EEG signals, the EEG cap 1 also includes a signal amplifier 13, which is electrically connected to the cap body 11 and is used to receive the EEG signals collected by the collection electrodes 12 and amplify the EEG signals to enhance the strength of the collected EEG signals.

[0039] It is worth mentioning that the cap body 11 also includes a voice announcer (not shown in the figure), which is used to play action prompt sounds. When the patient is undergoing rehabilitation training, after the patient wears the EEG cap 1 and installs the muscle stimulator 2, the voice announcer plays the action prompt sound to guide the patient to imagine the corresponding movement according to the action prompt sound, so that the EEG cap 1 can timely collect the EEG signals generated by the patient's spontaneous imagination of body movement, and further enable the muscle stimulator 2 to convert the EEG signals generated by the movement imagination into electrical stimulation signals, giving the patient's muscles a certain stimulation, so as to achieve the training of the affected side's neuromuscular and central nervous system.

[0040] Continue to refer to Figure 1The muscle stimulator 2 includes a signal processor 21, an electric stimulator 22, and a muscle stimulation piece 23. The signal processor 21 is electrically connected to the electric stimulator 22, and the electric stimulator 22 is electrically connected to the muscle stimulation piece 23. The signal processor 21 is used to receive the EEG signal and perform noise reduction processing on the EEG signal. The electric stimulator 22 is used to receive the EEG signal after noise reduction processing, and send an electric stimulation signal to the muscle stimulation piece 23 based on the EEG signal after noise reduction processing. The muscle stimulation piece 23 is used to be attached to the patient's skin to electrically stimulate the patient's skin. Specifically, the electric stimulation signal is a low-frequency pulse current. Applying a low-frequency pulse current to a specific muscle helps to improve muscle tension, accelerate blood circulation and lymphatic circulation, increase joint mobility, and at the same time provide the central nervous system with the body's muscle contraction and relaxation sensations, promote the reconstruction of neural pathways and the recovery of muscle function after injury, and gradually restore the brain's control over the hemiplegic muscles.

[0041] Reference Figure 1 and Figure 2 In different embodiments, the muscle stimulation piece 23 can have different structures. For example, in the embodiment of the present application, the electrical stimulator 22 is provided with a lead wire 24. The muscle stimulation piece 23 includes an electrode buckle 231, a gasket 232 and a sticker 233. One side of the gasket 232 is connected to the electrode buckle 231, and the other side is used to fit with the sticker 233. The surface of the gasket 232 used to fit with the sticker 233 is coated with conductive glue, and the electrode buckle 231 is connected to the lead wire 24. Specifically, the gasket 232 and the sticker 233 have the same shape. When not in use, the gasket 232 and the sticker 233 are completely fitted. The gasket 232 can have different shapes, such as an ellipse, a triangle, or a rectangle. In different embodiments, the gasket 232 can be made of different materials. For example, the gasket 232 can be made of foam material. The gasket 232 is made of foam material, which can reduce the discomfort of the muscle stimulation piece 23 against the skin and can fit the surface of the skin well, so that the conductive adhesive can be firmly adhered to the skin during use.

[0042] Furthermore, in order to stimulate multiple areas or multiple muscle groups at the same time to improve the efficiency of treatment, the electrical stimulator 22 is provided with multiple lead wires 24, and the muscle stimulation pieces 23 are also provided with multiple lead wires 24, and the muscle stimulation pieces 23 are connected one by one with the lead wires 24. As an example, in the embodiment of the present application, two muscle stimulation pieces 23 are provided, and two lead wires 24 are also provided.

[0043] The implementation principle of the embodiment of the present application: EEG signals are a collection of electrical signals of cerebral cortical cell activity, which contain the current active state of the brain and physiological information. Compared with the traditional passive rehabilitation method, the hand function training device disclosed in the present application recognizes the EEG signals generated by the patient's spontaneous imagination of body movement, converts the patient's movement imagination intention into control instructions for rehabilitation peripherals, and realizes "central-peripheral-central" closed-loop rehabilitation with active brain participation, which has a better effect on rebuilding the neural connection between the patient's hand and brain.

[0044] Specifically, when the patient needs to train hand function, the patient wears the EEG cap 1 and installs the muscle stimulator 2 on the hand tendon, and imagines hand movements according to voice prompts. Each time the patient imagines hand movements, the EEG cap 1 collects the EEG signals generated during the imagination process, and the muscle stimulator 2 receives the EEG signals collected by the EEG cap 1, and based on the EEG signals, gives electrical stimulation to the hand muscles in the corresponding position of the patient, so as to achieve training of the patient's hand muscles and central nervous system. Training the patient's hand muscles in this way can stimulate the patient's awareness of autonomous exercise, help the patient's brain nerves repair and reshape, and improve the rehabilitation effect.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A hand function training device, characterized in that: include: An EEG cap (1) and a muscle stimulator (2), wherein the EEG cap (1) and the muscle stimulator (2) are electrically connected, the EEG cap (1) is used to collect EEG signals, and the muscle stimulator (2) is used to receive the EEG signals and send out electrical stimulation signals based on the EEG signals; The EEG cap (1) comprises a cap body (11) and a plurality of collecting electrodes (12), wherein the plurality of collecting electrodes (12) are distributed inside the cap body (11) and are used to collect the EEG signals; Also included is a voice announcer, which is used to play action prompt sounds; The muscle stimulator (2) comprises a signal processor (21), an electrical stimulator (22), and a muscle stimulation sheet (23); the signal processor (21) is electrically connected to the electrical stimulator (22); the electrical stimulator (22) and the muscle stimulation sheet (23) are electrically connected; the signal processor (21) is used to receive the electroencephalogram signal and perform noise reduction processing on the electroencephalogram signal; the electrical stimulator (22) is used to receive the electroencephalogram signal after the noise reduction processing and send a signal to the muscle stimulation sheet (23) based on the electroencephalogram signal after the noise reduction processing. The muscle stimulation piece (23) emits an electrical stimulation signal; the electrical stimulation device (22) further comprises a lead wire (24); the muscle stimulation piece (23) comprises an electrode buckle (231), a gasket (232) and a sticker (233); one side of the gasket (232) is connected to the electrode buckle (231) and the other side is attached to the sticker (233); the side of the gasket (232) for attaching to the sticker (233) is coated with conductive glue; the electrode buckle (231) is connected to the lead wire (24); The collecting electrode (12) comprises a mounting base (121) and a collecting head (122); a plurality of mounting grooves (111) are provided inside the cap body (11); the collecting head (122) is connected to the mounting base (121); and the mounting base (121) is detachably connected to the mounting grooves (111).

2. The hand function training device according to claim 1, characterized in that: The EEG cap (1) further comprises a signal amplifier (13), wherein the signal amplifier (13) is electrically connected to the cap body (11) and is used for receiving the EEG signal collected by the collection electrode (12) and amplifying the EEG signal.

3. The hand function training device according to claim 1, characterized in that: The electrical stimulation signal is a low-frequency pulse current.

4. The hand function training device according to claim 1, characterized in that: The muscle stimulation sheets (23) are provided in plurality.

5. The hand function training device according to claim 1, characterized in that: The collection head (122) is made of conductive rubber.

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