Electrical stimulation device for vestibular rehabilitation treatment

Abstract

The utility model discloses an electrical stimulation device for vestibular rehabilitation treatment. The electrical stimulation device comprises a wearable head band, left and right ear positioning holes formed in the left and right opposite sides of the wearable head band, a left stimulation electrode fixed on the inner side of the wearable head band and beside the left ear positioning hole, and a right stimulation electrode fixed on the inner side of the wearable head band and beside the right ear positioning hole, left and right stimulation electrodes + are fixed to the inner side of the front face of the wearable head band, a host shell is fixed to the outer side of the front face of the wearable head band, and a microprocessor, a stimulation gating circuit, a waveform generation circuit, a constant-current driving module and a wireless communication module are arranged in the host shell. The stimulation gating circuit, the waveform generation circuit, the constant current driving module and the wireless communication module are connected with the microprocessor, the waveform generation circuit and the stimulation gating circuit are connected with the constant current driving module, and the constant current driving module is electrically connected with the left side stimulation electrode and the right side stimulation electrode. The left / right side stimulating electrode is composed of a left / right side stimulating electrode + and a left / right side stimulating electrode-.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical stimulation devices, and particularly relates to an electrical stimulation device for vestibular rehabilitation therapy. Background Technique

[0002] The vestibular system plays a crucial role in human balance and spatial orientation. With the aging of the population, the increase in accidental injuries, and the occurrence of various inner ear diseases, the number of patients with vestibular dysfunction has been increasing year by year. These disorders may cause severe dizziness, balance disorders, and difficulties in spatial orientation in patients, seriously affecting the quality of life of patients. Although there are some physical therapy and rehabilitation training methods, their curative effects are limited and the rehabilitation period is long. Therefore, there is an urgent need for a more effective and rapid vestibular rehabilitation solution. Content of the Utility Model

[0003] The utility model aims at the problems and deficiencies existing in the prior art, and provides an electrical stimulation device for vestibular rehabilitation therapy.

[0004] The utility model solves the above technical problems through the following technical solutions:

[0005] The utility model provides an electrical stimulation device for vestibular rehabilitation therapy, which is characterized in that it includes a wearable headband. The left and right sides of the wearable headband are respectively provided with a left ear positioning hole and a right ear positioning hole. A left stimulating electrode - is fixed inside the wearable headband and beside the left ear positioning hole. A right stimulating electrode - is fixed inside the wearable headband and beside the right ear positioning hole. A left stimulating electrode + and a right stimulating electrode + are fixed on the inner side of the front of the wearable headband. A main body housing is fixed on the outer side of the front of the wearable headband. A microprocessor, a stimulation gating circuit, a waveform generation circuit, a constant current driving module, and a wireless communication module are arranged inside the main body housing. The stimulation gating circuit, the waveform generation circuit, the constant current driving module, and the wireless communication module are all electrically connected to the microprocessor. The waveform generation circuit and the stimulation gating circuit are both electrically connected to the constant current driving module. The constant current driving module is respectively electrically connected to the left stimulating electrode and the right stimulating electrode. The left stimulating electrode is composed of the left stimulating electrode + and the left stimulating electrode -. The right stimulating electrode is composed of the right stimulating electrode + and the right stimulating electrode -.

[0006] By using the electrical stimulation device for vestibular rehabilitation therapy of the utility model, when this electrical stimulation device is worn on the head of a patient, the vestibular organ can be effectively stimulated through electrical stimulation technology, so as to accelerate the recovery and reconstruction of vestibular function, help the patient quickly recover vestibular function, relieve symptoms of dizziness and balance disorders, and improve the quality of life. Description of the Drawings

[0007] Figure 1 Schematic diagram of the structure of the wearable headband according to the preferred embodiment of the present invention.

[0008] Figure 2 Schematic diagram of the stimulation electrode stimulating the vestibular region according to the preferred embodiment of the present invention.

[0009] Figure 3 Schematic diagram of the control principle of the electrical stimulation device for vestibular rehabilitation therapy according to the preferred embodiment of the present invention.

[0010] Figure 4 Specific circuit diagram of the stimulation gating circuit according to the preferred embodiment of the present invention.

[0011] Figure 5 Specific circuit diagram of the constant current drive module according to the preferred embodiment of the present invention. Specific implementation mode

[0012] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0013] As Figures 1-5 shown, this embodiment provides an electrical stimulation device for vestibular rehabilitation therapy, which includes a wearable headband 100. Left ear positioning holes 1 and right ear positioning holes 2 are respectively provided on the relative left and right sides of the wearable headband 100. A left stimulation electrode - 3 is fixed inside the wearable headband 100 and beside the left ear positioning hole 1. A right stimulation electrode - 4 is fixed inside the wearable headband 100 and beside the right ear positioning hole 2. A left stimulation electrode + 5 and a right stimulation electrode + 6 are fixed on the inner side of the front of the wearable headband 100. A main body housing 7 is fixed on the outer side of the front of the wearable headband 100. A microprocessor 8, a stimulation gating circuit 9, a waveform generation circuit 10, a constant current drive module 11, a current detection circuit 12, a wireless communication module 13, and an attitude sensor 14 are arranged inside the main body housing 7.

[0014] The stimulus gating circuit 9, waveform generation circuit 10, constant current drive module 11, current detection circuit 12, attitude sensor 14, and wireless communication module 13 are all electrically connected to the microprocessor 8. The waveform generation circuit 10 and the stimulus gating circuit 9 are both electrically connected to the constant current drive module 11. The constant current drive module 11 is respectively electrically connected to the left stimulus electrode and the right stimulus electrode. The left stimulus electrode is composed of left stimulus electrode +5 and left stimulus electrode -3, and the right stimulus electrode is composed of right stimulus electrode +6 and right stimulus electrode -4. The constant current drive module 11 and the current detection circuit 12 are electrically connected.

[0015] The microprocessor 8 uses an existing microprocessor chip with high performance and low power consumption. The waveform generation circuit 10 uses an existing waveform generation circuit. The current detection circuit 12 uses an existing current detection circuit. The wireless communication module 13 can use a Bluetooth module.

[0016] Which specific port pins of the microprocessor the various electronic devices (stimulus gating circuit 9, waveform generation circuit 10, constant current drive module 11, current detection circuit 12, attitude sensor 14, and wireless communication module 13) are electrically connected to is a conventional setting for those skilled in the art and is prior art.

[0017] In this embodiment, the waveform generation circuit 10, current detection circuit 12, wireless communication module 13, attitude sensor 14, and microprocessor selected according to actual needs are all existing commercially available products, and their structures have not been improved and are all existing structures. Then, the specific structures, circuit designs, and working principles of the waveform generation circuit 10, current detection circuit 12, wireless communication module 13, attitude sensor 14, and controller are all publicly known prior art. In the specification, only these electronic devices are used to achieve certain functions, and there is no need to describe in detail the specific structures, circuit designs, and working principles of these existing electronic devices. The entire solution is also clear.

[0018] Among them, the stimulus gating circuit 9 includes: a left stimulus gating circuit and a right stimulus gating circuit. The circuit structures of the left stimulus gating circuit and the right stimulus gating circuit are the same. The left stimulus gating circuit outputs a left electrical stimulus gating signal, and the right stimulus gating circuit outputs a right electrical stimulus gating signal.

[0019] See Figure 4, the left - hand side stimulation gating circuit includes: The port 1 of the opto - isolator chip U4 is electrically connected to the IO port of the micro - processor 8 for receiving the stimulation gating control signal output by the IO port of the micro - processor 8, and is also connected to the power supply VCC through the resistor R7. The port 2 of the opto - isolator chip U4 is grounded, the port 3 is connected to the power supply VCCF1 through the resistor R8. The port 4 of the opto - isolator chip U4 is electrically connected to the base of the triode Q1 through the resistor R9. The collector of the triode Q1 outputs the left - hand side electrical stimulation gating signal to the constant - current drive module 11, is also connected to the power supply VCCF1 through the resistor R10, and is also grounded through the capacitor C2. The emitter of the triode Q1 is grounded through the resistor R11. Among them, the power supply VCC is the non - isolated power supply provided by the power supply module, the power supply VCCF1 is the isolated power supply provided by the power supply module. The power supply module can be placed inside the mainframe housing 7 or can be separately arranged from the wearable headband 100. The power supply module uses an existing power supply module.

[0020] After the IO port of the micro - processor 8 receives the stimulation gating control instruction containing the target electrical stimulation channel transmitted from the host computer through the wireless communication module 13, when the target electrical stimulation channel is the left - hand side electrical stimulation channel, it outputs the stimulation gating control signal to the left - hand side stimulation gating circuit. After being isolated by the opto - isolator chip U4 in the left - hand side stimulation gating circuit, it is connected to the base of the triode Q1 in the left - hand side stimulation gating circuit to control the conduction of the triode Q1. After the triode Q1 conducts, it outputs the left - hand side electrical stimulation gating signal to the constant - current drive module 11; when the target electrical stimulation channel is the right - hand side electrical stimulation channel, it outputs the stimulation gating control signal to the right - hand side stimulation gating circuit. After being isolated by the opto - isolator chip U4 in the right - hand side stimulation gating circuit, it is connected to the base of the triode Q1 in the right - hand side stimulation gating circuit to control the conduction of the triode Q1. After the triode Q1 conducts, it outputs the right - hand side electrical stimulation gating signal to the constant - current drive module 11. Among them, the target electrical stimulation channel is the left - hand side electrical stimulation channel containing the left - hand side stimulation electrode or the right - hand side electrical stimulation channel containing the right - hand side stimulation electrode.

[0021] The constant - current drive module 11 includes: a left - hand side constant - current drive circuit and a right - hand side constant - current drive circuit. The circuit structures of the left - hand side constant - current drive circuit and the right - hand side constant - current drive circuit are the same. The left - hand side constant - current drive circuit is electrically connected to the left - hand side stimulation electrode, and the right - hand side constant - current drive circuit is electrically connected to the right - hand side stimulation electrode.

[0022] See Figure 5, the left constant current drive circuit includes: Port 1 of the opto-isolation chip U1 is electrically connected to the DA port of the microprocessor 8, and is also electrically connected to the left stimulation gating circuit for receiving the left electrical stimulation gating signal output by the left stimulation gating circuit, and is also connected to the power supply VCC through the resistor R1. Port 2 of the opto-isolation chip U1 is grounded. Port 3 of the opto-isolation chip U1 is electrically connected to the positive input terminal of the operational amplifier, and is also connected to the power supply VCCF1 through the resistor R2. Port 4 of the opto-isolation chip U1 is electrically connected to the negative input terminal of the operational amplifier. The pull-up control terminal of the operational amplifier is connected to the power supply VCCF1, and the pull-down control terminal is grounded. The output terminal of the operational amplifier is connected to the power supply VCCF1 through the resistor R3, is also grounded through the capacitor C1, and is also electrically connected to the gate of the MOS transistor U3. The source of the MOS transistor U3 is grounded through the resistor R5, and the drain is electrically connected to port 2 of the electrical stimulation output interface J1. Port 3 of the electrical stimulation output interface J1 is connected to the power supply VCCF2 through the resistor R4, and port 1 is electrically connected to the left stimulation electrode, where the power supply VCCF2 is the maximum operating voltage corresponding to the stimulation provided by the power supply module.

[0023] When the target electrical stimulation channel is the left electrical stimulation channel, the microprocessor 8 outputs a start control signal to the left constant current drive circuit through the DA port to control the left constant current drive circuit to conduct. When the target electrical stimulation channel is the right electrical stimulation channel, the microprocessor 8 outputs a start control signal to the right constant current drive circuit through the DA port to control the right constant current drive circuit to conduct.

[0024] When the target electrical stimulation channel is the left electrical stimulation channel, the microprocessor 8 receives the electrical stimulation instruction containing the target electrical stimulation waveform, target electrical stimulation frequency, and target electrical stimulation intensity transmitted from the upper computer through the wireless communication module 13, controls the waveform generation circuit 10 to generate the target electrical stimulation waveform with the target electrical stimulation frequency, controls the left constant current drive circuit to generate a current matching the target electrical stimulation intensity, thereby forming an electrical stimulation signal with the target electrical stimulation waveform, target electrical stimulation frequency, and current corresponding to the target electrical stimulation intensity and applying it to the patient through the left stimulation electrode to perform electrical stimulation vestibular rehabilitation treatment on the patient; when the target electrical stimulation channel is the right electrical stimulation channel, the microprocessor 8 receives the electrical stimulation instruction containing the target electrical stimulation waveform, target electrical stimulation frequency, and target electrical stimulation intensity transmitted from the upper computer through the wireless communication module 13, controls the waveform generation circuit 10 to generate the target electrical stimulation waveform with the target electrical stimulation frequency, controls the right constant current drive circuit to generate a current matching the target electrical stimulation intensity, thereby forming an electrical stimulation signal with the target electrical stimulation waveform, target electrical stimulation frequency, and current corresponding to the target electrical stimulation intensity and applying it to the patient through the right stimulation electrode to perform electrical stimulation vestibular rehabilitation treatment on the patient.

[0025] The microprocessor 8 controls the current detection circuit 12 to detect and feedback the current output by the constant current drive module and transmit it to the host computer through the wireless communication module 13, and controls the attitude sensor 14 to monitor the head displacement change of the patient during the electrical stimulation process and transmit it to the host computer through the wireless communication module 13.

[0026] In this solution, electrical stimulation signals with various waveforms, frequencies, and intensities can be generated to meet different treatment requirements; the current detection circuit 12 is used to detect and feedback the current output by the constant current drive module, and the attitude sensor 13 is used to monitor the head displacement change of the patient in real time, providing accurate data support for electrical stimulation; the left stimulation electrode -3, right stimulation electrode -4, left stimulation electrode +5, and right stimulation electrode +6 all adopt medical-grade silicone materials, with good biocompatibility and electrode conductivity, and are designed to be in close contact with the patient's ear vestibular area and forehead area to ensure the effective transmission of electrical stimulation.

[0027] Although the specific implementation manners of the present invention have been described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Without departing from the principle and essence of the present invention, those skilled in the art can make various changes or modifications to these implementation manners, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. An electrical stimulation device for vestibular rehabilitation therapy, characterized in that: The invention discloses a wearable headband, wherein a left ear positioning hole and a right ear positioning hole are respectively provided on the opposite left and right sides of the wearable headband, a left stimulation electrode - is fixed on the inner side of the wearable headband and next to the left ear positioning hole, a right stimulation electrode - is fixed on the inner side of the wearable headband and next to the right ear positioning hole, a left stimulation electrode + and a right stimulation electrode + are fixed on the inner side of the front of the wearable headband, a host shell is fixed on the outer side of the front of the wearable headband, a microprocessor, a stimulation gating circuit, a waveform generating circuit, a constant current driving module and a wireless communication module are arranged in the host shell, the stimulation gating circuit, the waveform generating circuit, the constant current driving module and the wireless communication module are all electrically connected to the microprocessor, the waveform generating circuit and the stimulation gating circuit are all electrically connected to the constant current driving module, the constant current driving module is electrically connected to the left stimulation electrode and the right stimulation electrode respectively, the left stimulation electrode is composed of the left stimulation electrode + and the left stimulation electrode -, and the right stimulation electrode is composed of the right stimulation electrode + and the right stimulation electrode -.

2. The electrical stimulation device for vestibular rehabilitation therapy according to claim 1, characterized in that: A current detection circuit is also arranged in the host housing, the input end of the current detection circuit is electrically connected to the output end of the constant current driving module, and the output end of the current detection circuit is electrically connected to the microprocessor.

3. The electrical stimulation device for vestibular rehabilitation therapy according to claim 1, characterized in that: A posture sensor is also arranged in the mainframe housing, and the posture sensor is electrically connected to the microprocessor.

4. The electrical stimulation device for vestibular rehabilitation therapy according to claim 1, characterized in that: The stimulation gating circuit comprises: a left stimulation gating circuit and a right stimulation gating circuit, the circuit structures of the left stimulation gating circuit and the right stimulation gating circuit are the same, the left stimulation gating circuit outputs a left electrical stimulation gating signal, and the right stimulation gating circuit outputs a right electrical stimulation gating signal; The left stimulation gating circuit includes: port 1 of the optoelectronic isolation chip U4 is electrically connected to the IO port of the microprocessor for receiving the stimulation gating control signal output by the IO port of the microprocessor, and is also connected to the power supply VCC through a resistor R7, port 2 of the optoelectronic isolation chip U4 is grounded, and port 3 is connected to the power supply VCCF1 through a resistor R8, port 4 of the optoelectronic isolation chip U4 is electrically connected to the base of the transistor Q1 through a resistor R9, the collector of the transistor Q1 outputs the left electrical stimulation gating signal to the constant current drive module, is also connected to the power supply VCCF1 through a resistor R10, and is also grounded through a capacitor C2, and the emitter of the transistor Q1 is grounded through a resistor R11, wherein the power supply VCC is the power supply before isolation provided by the power module, and the power supply VCCF1 is the power supply after isolation provided by the power module.

5. The electrical stimulation device for vestibular rehabilitation therapy according to claim 4, characterized in that: The constant current driving module comprises: a left constant current driving circuit and a right constant current driving circuit, the left constant current driving circuit and the right constant current driving circuit have the same circuit structure, the left constant current driving circuit is electrically connected to the left stimulation electrode, and the right constant current driving circuit is electrically connected to the right stimulation electrode; The left constant current driving circuit includes: port 1 of the photoelectric isolation chip U1 is electrically connected to the DA port of the microprocessor, and is also electrically connected to the left stimulation gating circuit for receiving the left electrical stimulation gating signal output by the left stimulation gating circuit, and is also connected to the power supply VCC through a resistor R1, port 2 of the photoelectric isolation chip U1 is grounded, port 3 of the photoelectric isolation chip U1 is electrically connected to the positive input terminal of the operational amplifier, and is also connected to the power supply VCCF1 through a resistor R2, port 4 of the photoelectric isolation chip U1 is electrically connected to the negative input terminal of the operational amplifier, the pull-up control terminal of the operational amplifier is connected to the power supply VCCF1, and the pull-down control terminal is grounded, the output terminal of the operational amplifier is connected to the power supply VCCF1 through a resistor R3, is also grounded through a capacitor C1, and is also electrically connected to the gate of the MOS tube U3, the source of the MOS tube U3 is grounded through a resistor R5, and the drain is electrically connected to port 2 of the electrical stimulation output interface J1, port 3 of the electrical stimulation output interface J1 is connected to the power supply VCCF2 through a resistor R4, and port 1 is electrically connected to the left stimulation electrode, wherein the power supply VCCF2 is the maximum working voltage corresponding to the stimulation provided by the power module.

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