Electrical stimulation vestibular rehabilitation system and method

Abstract

The present invention discloses an electrical stimulation vestibular rehabilitation system and method. A microprocessor receives a stimulation gating control instruction containing a target electrical stimulation channel, outputs a stimulation gating control signal to a stimulation gating circuit to control the conduction of the target electrical stimulation channel of the stimulation gating circuit; after gating, an impedance signal measured by an impedance detection module is received, and the impedance of the left / right stimulation electrode + contacting with the human body, the impedance of the left stimulation electrode - contacting with the human body, and the impedance of the right stimulation electrode - contacting with the human body are analyzed, and when the three impedance values ​​are all less than the set impedance value, information that each electrode has good contact is output; thereafter, an electrical stimulation instruction containing a target electrical stimulation waveform, frequency, and intensity is received, a waveform generation module and a constant current driving module are controlled to form an electrical stimulation signal having a target electrical stimulation waveform, a target electrical stimulation frequency, and a current corresponding to a target electrical stimulation intensity, and the signal is applied to a patient through the stimulation electrode of the target electrical stimulation channel, so as to perform electrical stimulation vestibular rehabilitation treatment on the patient.

Description

Technical Field

[0001] The present invention relates to the technical field of medical rehabilitation equipment, and in particular to an electrical stimulation vestibular rehabilitation system and method, wherein the system is specially designed to promote the recovery and reconstruction of vestibular function by means of electrical stimulation. Background Art

[0002] The vestibular system plays a vital 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 increased year by year. These disorders may cause patients to experience severe vertigo, imbalance, and difficulty in spatial orientation, seriously affecting the quality of their daily lives. Although there are some physical therapy and rehabilitation training methods, their efficacy is limited and the rehabilitation period is long. Therefore, a more effective and rapid vestibular rehabilitation solution is urgently needed. Summary of the invention

[0003] In view of the problems and shortcomings of the prior art, the present invention provides an electrical stimulation vestibular rehabilitation system and method.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] The present invention provides an electrical stimulation vestibular rehabilitation system, which is characterized in that it comprises a wearable headband, wherein a left ear positioning hole and a right ear positioning hole are respectively opened on the opposite left and right sides of the wearable headband, a left stimulation negative electrode is fixed on the inner side of the wearable headband and located next to the left ear positioning hole, a right stimulation negative electrode is fixed on the inner side of the wearable headband and located next to the right ear positioning hole, a left stimulation positive electrode and a right stimulation positive 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, and a microprocessor, a stimulation gating circuit, a waveform generation module, a constant current driver and a control module are arranged in the host shell. The microprocessor comprises a microprocessor, a waveform generating module, a constant current driving module, a stimulation gating circuit, a waveform generating module, a constant current driving module, a impedance detecting module and a wireless communication module, wherein the stimulation gating circuit, the waveform generating module and the stimulation gating circuit are all electrically connected to the constant current driving module, and the constant current driving module is electrically connected to the left stimulation electrode and the right stimulation electrode respectively, wherein the left stimulation electrode is composed of the left stimulation positive electrode and the left stimulation negative electrode, and the right stimulation electrode is composed of the right stimulation positive electrode and the right stimulation negative electrode, and the impedance detecting module is electrically connected to the left stimulation positive electrode or the right stimulation positive electrode, the left stimulation negative electrode and the right stimulation negative electrode;

[0006] The microprocessor is used to receive a stimulation gating control instruction containing a target electrical stimulation channel from a host computer through a wireless communication module, and output a stimulation gating control signal to a stimulation gating circuit to control the conduction of the target electrical stimulation channel of the stimulation gating circuit, wherein the target electrical stimulation channel is a left electrical stimulation channel containing a left stimulation electrode or a right electrical stimulation channel containing a right stimulation electrode;

[0007] The microprocessor is also used to receive the impedance signal detected by the impedance detection module after gating, analyze the impedance of the contact between the left stimulation positive electrode or the right stimulation positive electrode and the human body, the impedance of the contact between the left stimulation negative electrode and the human body, and the impedance of the contact between the right stimulation negative electrode and the human body based on the impedance signal, and when the three detected impedance values ​​are all less than the set impedance value, output the information that each electrode is in good contact and transmit it to the host computer through the wireless communication module, otherwise output the information that the electrode has poor contact and needs to be adjusted and transmit it to the host computer through the wireless communication module;

[0008] The microprocessor is also used to receive the electrical stimulation instructions containing the target electrical stimulation waveform, target electrical stimulation frequency and target electrical stimulation intensity from the host computer through the wireless communication module after the electrodes are in good contact, control the waveform generation module to generate the target electrical stimulation waveform with the target electrical stimulation frequency, and control the constant current drive module to generate the 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 stimulation electrodes of the target electrical stimulation channel, so as to perform electrical stimulation vestibular rehabilitation treatment on the patient.

[0009] The present invention also provides an electrical stimulation vestibular rehabilitation method, which is characterized in that it is implemented by using the above-mentioned electrical stimulation vestibular rehabilitation system, and the electrical stimulation vestibular rehabilitation method comprises the following steps:

[0010] Step 1: The microprocessor receives a stimulation gating control instruction containing a target electrical stimulation channel from a host computer through a wireless communication module, and outputs a stimulation gating control signal to a stimulation gating circuit to control the conduction of the target electrical stimulation channel of the stimulation gating circuit, wherein the target electrical stimulation channel is a left electrical stimulation channel containing a left stimulation electrode or a right electrical stimulation channel containing a right stimulation electrode;

[0011] Step 2: After being selected, the microprocessor receives the impedance signal detected by the impedance detection module, and analyzes the impedance of the contact between the left stimulation positive electrode or the right stimulation positive electrode and the human body, the impedance of the contact between the left stimulation negative electrode and the human body, and the impedance of the contact between the right stimulation negative electrode and the human body based on the impedance signal. When the three detected impedance values ​​are all less than the set impedance value, the information that each electrode is in good contact is output and transmitted to the host computer through the wireless communication module. Otherwise, the information that the electrode contact is poor and the wearing needs to be adjusted is output and transmitted to the host computer through the wireless communication module;

[0012] Step three: After all electrodes are in good contact, the microprocessor receives an electrical stimulation instruction containing a target electrical stimulation waveform, a target electrical stimulation frequency and a target electrical stimulation intensity from the host computer through the wireless communication module, controls the waveform generation module to generate a target electrical stimulation waveform with a target electrical stimulation frequency, and controls the constant current drive module to generate a current matching the target electrical stimulation intensity, thereby forming an electrical stimulation signal having a current corresponding to the target electrical stimulation waveform, target electrical stimulation frequency and target electrical stimulation intensity, and applies the signal to the patient through the stimulation electrode of the target electrical stimulation channel, so as to perform electrical stimulation vestibular rehabilitation treatment on the patient.

[0013] The positive and progressive effects of the present invention are:

[0014] The electrical stimulation vestibular rehabilitation system and method provided by the present invention provide effective stimulation to the vestibular organs through precisely controlled electrical stimulation technology, so as to accelerate the recovery and reconstruction of vestibular function.

[0015] The present invention accelerates the rehabilitation process: through a personalized and systematic electrical stimulation treatment program, the rehabilitation period is effectively shortened.

[0016] The present invention improves the quality of life: helps patients quickly recover vestibular function, alleviates symptoms of vertigo and imbalance, and improves the quality of life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the structure of a wearable headband according to a preferred embodiment of the present invention.

[0018] Figure 2 This is a control principle diagram of the electrical stimulation vestibular rehabilitation system of a preferred embodiment of the present invention.

[0019] Figure 3 Detailed circuit diagram of the stimulation gating circuit of a preferred embodiment of the present invention.

[0020] Figure 4 Detailed circuit diagram of a constant current driving module according to a preferred embodiment of the present invention.

[0021] Figure 5 FIG. 4 is a specific circuit diagram of an impedance detection module according to a preferred embodiment of the present invention.

[0022] Figure 6 This is a schematic diagram of a stimulating electrode stimulating the vestibular area in a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] like Figure 1-6 As shown, the present embodiment provides an electrical stimulation vestibular rehabilitation system, which includes a wearable headband 100, wherein a left ear positioning hole 1 and a right ear positioning hole 2 are respectively opened on the opposite left and right sides of the wearable headband 100, a left stimulation negative electrode 3 is fixed on the inner side of the wearable headband 100 and next to the left ear positioning hole 1, a right stimulation negative electrode 4 is fixed on the inner side of the wearable headband 100 and next to the right ear positioning hole 2, a left stimulation positive electrode 5 and a right stimulation positive electrode 6 are fixed on the inner side of the front of the wearable headband 100, and a host shell 7 is fixed on the outer side of the front of the wearable headband 100, and a microprocessor 8, a stimulation gating circuit 9, a waveform generation module 10, a constant current drive module 11, a current detection module 12, an impedance detection module 13, a posture sensor 14 and a wireless communication module 15 are arranged in the host shell 7.

[0025] The stimulation gating circuit 9, the waveform generating module 10, the constant current driving module 11, the current detecting module 12, the impedance detecting module 13, the posture sensor 14 and the wireless communication module 15 are all electrically connected to the microprocessor 8, the waveform generating module 10 and the stimulation gating circuit 9 are all electrically connected to the constant current driving module 11, the constant current driving module 11 is electrically connected to the left stimulation electrode and the right stimulation electrode respectively, the left stimulation electrode is composed of the left stimulation positive electrode 5 and the left stimulation negative electrode 3, the right stimulation electrode is composed of the right stimulation positive electrode 6 and the right stimulation negative electrode 4, the impedance detecting module 13 is electrically connected to the left stimulation positive electrode 5 or the right stimulation positive electrode 6, the left stimulation negative electrode 3 and the right stimulation negative electrode 4, and the constant current driving module 11 is electrically connected to the current detecting module 12.

[0026] The microprocessor 8 is used to receive the stimulation gating control instructions containing the target electrical stimulation channel from the host computer through the wireless communication module 15, and output the stimulation gating control signal to the stimulation gating circuit 9 to control the conduction of the target electrical stimulation channel of the stimulation gating circuit 9, and the target electrical stimulation channel is the left electrical stimulation channel containing the left stimulation electrode or the right electrical stimulation channel containing the right stimulation electrode.

[0027] The microprocessor 8 is also used to receive the impedance signal detected by the impedance detection module 13 after selection, and analyze the impedance of the left stimulation positive electrode 5 or the right stimulation positive electrode 6 at the contact with the human body, the impedance of the left stimulation negative electrode 3 at the contact with the human body, and the impedance of the right stimulation negative electrode 4 at the contact with the human body based on the impedance signal. When the three detected impedance values ​​are all less than the set impedance values, the information that each electrode is in good contact is output and transmitted to the host computer through the wireless communication module 15. Otherwise, the information that the electrode contact is poor and the wearing needs to be adjusted is output and transmitted to the host computer through the wireless communication module 15.

[0028] The microprocessor 8 is also used to receive the electrical stimulation instructions containing the target electrical stimulation waveform, target electrical stimulation frequency and target electrical stimulation intensity from the host computer through the wireless communication module 15 after the electrodes are in good contact, control the waveform generation module 10 to generate the target electrical stimulation waveform with the target electrical stimulation frequency, and control the constant current drive module 11 to generate the 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 stimulation electrodes of the target electrical stimulation channel, so as to perform electrical stimulation vestibular rehabilitation treatment on the patient.

[0029] The microprocessor 8 is also used to control the current detection module 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 15, and control the posture sensor 14 to monitor the patient's head displacement changes during electrical stimulation and transmit it to the host computer through the wireless communication module 15.

[0030] The microprocessor 8 is also used to obtain the patient's head displacement changes at the initial stage and the final stage of an electrical stimulation vestibular rehabilitation therapy cycle. When the patient's head displacement changes at the final stage do not change significantly relative to the patient's head displacement changes at the initial stage, the target electrical stimulation frequency and / or target electrical stimulation intensity are adjusted to increase in the next electrical stimulation vestibular rehabilitation therapy cycle. Otherwise, the original target electrical stimulation frequency and target electrical stimulation intensity are maintained in the next electrical stimulation vestibular rehabilitation therapy cycle.

[0031] Among them, the stimulation gating circuit 9 includes: 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.

[0032] See Figure 3The left stimulation gating circuit includes: port 1 of the photoelectric isolation chip U4 is electrically connected to the IO port of the microprocessor 8 for receiving the stimulation gating control signal output by the IO port of the microprocessor 8, and is also connected to the power supply VCC through a resistor R7, port 2 of the photoelectric isolation chip U4 is grounded, and port 3 is connected to the power supply VCCF1 through a resistor R8, and port 4 of the photoelectric isolation chip U4 is electrically connected to the base of the transistor Q1 through a resistor R9, and the collector of the transistor Q1 outputs the left electrical stimulation gating signal to the constant current drive module 11, and 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, and the power module can be placed in the host housing 7, or it can be set separately from the wearable headband 100.

[0033] The microprocessor 8 is used to receive the stimulation gating control instruction containing the target electrical stimulation channel through the IO port, and when the target electrical stimulation channel is the left electrical stimulation channel, output the stimulation gating control signal to the left stimulation gating circuit, after being isolated by the photoelectric isolation chip U4 in the left stimulation gating circuit, connected to the base of the transistor Q1 in the left stimulation gating circuit to control the conduction of the transistor Q1, and after the transistor Q1 is turned on, output the left electrical stimulation gating signal to the constant current drive module 11; when the target electrical stimulation channel is the right electrical stimulation channel, output the stimulation gating control signal to the right stimulation gating circuit, after being isolated by the photoelectric isolation chip U4 in the right stimulation gating circuit, connected to the base of the transistor Q1 in the right stimulation gating circuit to control the conduction of the transistor Q1, and after the transistor Q1 is turned on, output the right electrical stimulation gating signal to the constant current drive module 11.

[0034] The constant current driving module 11 includes: a left constant current driving circuit and a right constant current driving circuit. The circuit structures of the left constant current driving circuit and the right constant current driving circuit are the same. 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.

[0035] See Figure 4The left constant current driving circuit includes: port 1 of the photoelectric 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, the port 2 of the photoelectric isolation chip U1 is grounded, the 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 the resistor R2, the 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 the resistor R3, and is also grounded through the 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 the resistor R5, and the drain is electrically connected to the port 2 of the electrical stimulation output interface J1, the port 3 of the electrical stimulation output interface J1 is connected to the power supply VCCF2 through the resistor R4, and the 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.

[0036] The microprocessor 8 is also used to output a start control signal to the left constant current drive circuit through the DA port when the target electrical stimulation channel is the left electrical stimulation channel, so as to control the conduction of the left constant current drive circuit, and to output a start control signal to the right constant current drive circuit through the DA port when the target electrical stimulation channel is the right electrical stimulation channel, so as to control the conduction of the right constant current drive circuit.

[0037] The microprocessor 8 is also used to, when the target electrical stimulation channel is the left electrical stimulation channel, receive an electrical stimulation instruction containing a target electrical stimulation waveform, a target electrical stimulation frequency, and a target electrical stimulation intensity, control the waveform generation module 10 to generate a target electrical stimulation waveform of the target electrical stimulation frequency, and control the left constant current drive circuit to generate a current matching the target electrical stimulation intensity, thereby forming an electrical stimulation signal having a target electrical stimulation waveform, a target electrical stimulation frequency, and a current corresponding to the target electrical stimulation intensity, and applying it to the patient through the left stimulation electrode; when the target electrical stimulation channel is the right electrical stimulation channel, receive an electrical stimulation instruction containing a target electrical stimulation waveform, a target electrical stimulation frequency, and a target electrical stimulation intensity, control the waveform generation module 10 to generate a target electrical stimulation waveform of the target electrical stimulation frequency, and control the right constant current drive circuit to generate a current matching the target electrical stimulation intensity, thereby forming an electrical stimulation signal having a target electrical stimulation waveform, a target electrical stimulation frequency, and a current corresponding to the target electrical stimulation intensity, and applying it to the patient through the right stimulation electrode.

[0038] See Figure 5The impedance detection module 13 includes: one end of the positive impedance is connected to the left stimulation positive electrode or the right stimulation positive electrode, and the other end is electrically connected to the X1 interface of the electronic switch U5; one end of the first negative impedance is connected to the left stimulation negative electrode, and the other end is electrically connected to the X2 interface of the electronic switch U5; one end of the second negative impedance is connected to the right stimulation negative electrode, and the other end is electrically connected to the Y0 interface of the electronic switch U5; the A interface and the B interface of the electronic switch U5 are both electrically connected to the IO port of the microprocessor; the VDD interface of the electronic switch U5 is connected to the power supply VCCF1, and the VSS interface is grounded; the Y interface of the electronic switch U5 is electrically connected to the positive input terminal of the operational amplifier; the negative input terminal of the operational amplifier is electrically connected to the output terminal of the operational amplifier through the resistor R13 and is also grounded through the resistor R12; the output terminal of the operational amplifier is electrically connected to the AD port of the microprocessor.

[0039] The microprocessor 8 is also used to output control signals RT1 and RT2 to control the electronic switch U5 after being selected, so as to select the positive electrode impedance, the first negative electrode impedance or the second negative electrode impedance corresponding to the electrode to be connected to the impedance test circuit to output the corresponding voltage value, and complete the impedance test of the left stimulation positive electrode 5 or the right stimulation positive electrode 6, the left stimulation negative electrode 3 and the right stimulation negative electrode 4. Based on the output three voltage values, the impedance value of the left stimulation positive electrode 5 or the right stimulation positive electrode 6 in contact with the human body, the impedance value of the left stimulation negative electrode 3 in contact with the human body and the impedance value of the right stimulation negative electrode 4 in contact with the human body are analyzed and calculated. When the three impedance values ​​are all less than the set impedance values, the information that each electrode is in good contact is output and transmitted to the host computer through the wireless communication module 15, wherein when the target electrical stimulation channel is the left electrical stimulation channel, the first negative electrode impedance is used as the negative electrode impedance, and the second negative electrode impedance is used as the ground impedance. When the target electrical stimulation channel is the right electrical stimulation channel, the second negative electrode impedance is used as the negative electrode impedance, and the first negative electrode impedance is used as the ground impedance.

[0040] This embodiment also provides an electrical stimulation vestibular rehabilitation method, which is implemented using the above-mentioned electrical stimulation vestibular rehabilitation system. The electrical stimulation vestibular rehabilitation method includes the following steps:

[0041] Step 1: The microprocessor 8 receives the stimulation gating control instruction containing the target electrical stimulation channel from the host computer through the wireless communication module 15, and outputs the stimulation gating control signal to the stimulation gating circuit 9 to control the conduction of the target electrical stimulation channel of the stimulation gating circuit 9, and the target electrical stimulation channel is the left electrical stimulation channel containing the left stimulation electrode or the right electrical stimulation channel containing the right stimulation electrode.

[0042] Step 2: After being selected, the microprocessor 8 receives the impedance signal detected by the impedance detection module 13, and analyzes the impedance of the left stimulation positive electrode 5 or the right stimulation positive electrode 6 at the contact with the human body, the impedance of the left stimulation negative electrode 3 at the contact with the human body, and the impedance of the right stimulation negative electrode 4 at the contact with the human body based on the impedance signal. When the three detected impedance values ​​are all less than the set impedance values, the information that each electrode is in good contact is output and transmitted to the host computer through the wireless communication module 15. Otherwise, the information that the electrode contact is poor and the wearing needs to be adjusted is output and transmitted to the host computer through the wireless communication module 15.

[0043] Step three: After all electrodes are in good contact, the microprocessor 8 receives the electrical stimulation instruction containing the target electrical stimulation waveform, target electrical stimulation frequency and target electrical stimulation intensity from the host computer through the wireless communication module 15, controls the waveform generation module 10 to generate the target electrical stimulation waveform with the target electrical stimulation frequency, and controls the constant current drive module 11 to generate the 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 applies it to the patient through the stimulation electrode of the target electrical stimulation channel, so as to perform electrical stimulation vestibular rehabilitation treatment on the patient.

[0044] In step three, the microprocessor 8 controls the current detection module 12 to detect and feedback the current output by the constant current drive module 11 and transmits it to the host computer through the wireless communication module 15, and controls the posture sensor 14 to monitor the patient's head displacement changes during electrical stimulation and transmits it to the host computer through the wireless communication module 15.

[0045] Step 4: The microprocessor 8 obtains the patient's head displacement changes at the initial stage and the final stage of an electrical stimulation vestibular rehabilitation treatment cycle. When the patient's head displacement changes at the final stage do not change significantly relative to the patient's head displacement changes at the initial stage, the target electrical stimulation frequency and / or target electrical stimulation intensity are adjusted to increase in the next electrical stimulation vestibular rehabilitation treatment cycle. Otherwise, the original target electrical stimulation frequency and target electrical stimulation intensity are maintained in the next electrical stimulation vestibular rehabilitation treatment cycle.

[0046] In this solution, electrical stimulation signals of various waveforms, frequencies and intensities can be generated to meet different treatment needs; the posture sensor 14 is used to monitor the patient's head displacement changes in real time to provide accurate data support for electrical stimulation; the left stimulation negative electrode 3, the right stimulation negative electrode 4, the left stimulation positive electrode 5, and the right stimulation positive electrode 6 are all made of medical-grade silicone material, which has good biocompatibility and electrode conductivity, and is designed to be in close contact with the patient's ear vestibular area and forehead area to ensure effective transmission of electrical stimulation; the microprocessor uses a high-performance, low-power microprocessor chip, equipped with sufficient computing power to process sensor data and control electrical stimulation.

[0047] Although the specific embodiments of the present invention are 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. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. An electrical stimulation vestibular rehabilitation system, characterized in that: The wearable headband comprises 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 stimulating negative electrode is fixed on the inner side of the wearable headband and next to the left ear positioning hole, a right stimulating negative electrode is fixed on the inner side of the wearable headband and next to the right ear positioning hole, a left stimulating positive electrode and a right stimulating positive electrode are fixed on the inner side of the front of the wearable headband, a host housing is fixed on the outer side of the front of the wearable headband, and a microprocessor, a stimulation gating circuit, a waveform generating module, a constant current driving module, an impedance detecting module and A wireless communication module, wherein the stimulation gating circuit, the waveform generation module, the constant current driving module, the impedance detection module and the wireless communication module are all electrically connected to the microprocessor, the waveform generation module 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 a left stimulation positive electrode and a left stimulation negative electrode, the right stimulation electrode is composed of a right stimulation positive electrode and a right stimulation negative electrode, and the impedance detection module is electrically connected to the left stimulation positive electrode or the right stimulation positive electrode, the left stimulation negative electrode and the right stimulation negative electrode; The microprocessor is used to receive a stimulation gating control instruction containing a target electrical stimulation channel from a host computer through a wireless communication module, and output a stimulation gating control signal to a stimulation gating circuit to control the conduction of the target electrical stimulation channel of the stimulation gating circuit, wherein the target electrical stimulation channel is a left electrical stimulation channel containing a left stimulation electrode or a right electrical stimulation channel containing a right stimulation electrode; The microprocessor is also used to receive the impedance signal detected by the impedance detection module after gating, analyze the impedance of the contact between the left stimulation positive electrode or the right stimulation positive electrode and the human body, the impedance of the contact between the left stimulation negative electrode and the human body, and the impedance of the contact between the right stimulation negative electrode and the human body based on the impedance signal, and when the three detected impedance values ​​are all less than the set impedance value, output the information that each electrode is in good contact and transmit it to the host computer through the wireless communication module, otherwise output the information that the electrode has poor contact and needs to be adjusted and transmit it to the host computer through the wireless communication module; The microprocessor is also used to receive the electrical stimulation instructions containing the target electrical stimulation waveform, target electrical stimulation frequency and target electrical stimulation intensity from the host computer through the wireless communication module after the electrodes are in good contact, control the waveform generation module to generate the target electrical stimulation waveform with the target electrical stimulation frequency, and control the constant current drive module to generate the 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 stimulation electrodes of the target electrical stimulation channel, so as to perform electrical stimulation vestibular rehabilitation treatment on the patient.

2. The electrical stimulation vestibular rehabilitation system according to claim 1, characterized in that: A current detection module and a posture sensor are also provided in the host housing, the current detection module and the posture sensor are both electrically connected to the microprocessor, and the constant current drive module is electrically connected to the current detection module; The microprocessor is also used to control the current detection module 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, and control the posture sensor to monitor the patient's head displacement changes during electrical stimulation and transmit it to the host computer through the wireless communication module.

3. The electrical stimulation vestibular rehabilitation system according to claim 2, characterized in that: The microprocessor is also used to obtain the patient's head displacement changes at the initial stage and the final stage of an electrical stimulation vestibular rehabilitation therapy cycle. When the patient's head displacement changes at the final stage do not change significantly relative to the patient's head displacement changes at the initial stage, the target electrical stimulation frequency and / or target electrical stimulation intensity are adjusted to increase in the next electrical stimulation vestibular rehabilitation therapy cycle. Otherwise, the original target electrical stimulation frequency and target electrical stimulation intensity are maintained in the next electrical stimulation vestibular rehabilitation therapy cycle.

4. The electrical stimulation vestibular rehabilitation system 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 photoelectric 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 photoelectric isolation chip U4 is grounded, port 3 is connected to the power supply VCCF1 through a resistor R8, port 4 of the photoelectric 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; The microprocessor is used to receive a stimulation gating control instruction containing a target electrical stimulation channel through an IO port, and when the target electrical stimulation channel is a left electrical stimulation channel, output a stimulation gating control signal to a left stimulation gating circuit, which is isolated by a photoelectric isolation chip U4 in the left stimulation gating circuit and connected to the base of transistor Q1 in the left stimulation gating circuit to control the conduction of transistor Q1. After transistor Q1 is turned on, the left electrical stimulation gating signal is output to a constant current drive module; when the target electrical stimulation channel is a right electrical stimulation channel, output a stimulation gating control signal to a right stimulation gating circuit, which is isolated by a photoelectric isolation chip U4 in the right stimulation gating circuit and connected to the base of transistor Q1 in the right stimulation gating circuit to control the conduction of transistor Q1. After transistor Q1 is turned on, the right electrical stimulation gating signal is output to a constant current drive module.

5. The electrical stimulation vestibular rehabilitation system 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; The microprocessor is also used to output a start control signal to the left constant current drive circuit through the DA port when the target electrical stimulation channel is the left electrical stimulation channel, so as to control the left constant current drive circuit to be turned on, and to output a start control signal to the right constant current drive circuit through the DA port when the target electrical stimulation channel is the right electrical stimulation channel, so as to control the right constant current drive circuit to be turned on; The microprocessor is also used to, when the target electrical stimulation channel is the left electrical stimulation channel, receive an electrical stimulation instruction containing a target electrical stimulation waveform, a target electrical stimulation frequency, and a target electrical stimulation intensity, control the waveform generation module to generate a target electrical stimulation waveform of the target electrical stimulation frequency, and control the left constant current drive circuit to generate a current matching the target electrical stimulation intensity, thereby forming an electrical stimulation signal having a current corresponding to the target electrical stimulation waveform, the target electrical stimulation frequency, and the target electrical stimulation intensity, and applying it to the patient through the left stimulation electrode; when the target electrical stimulation channel is the right electrical stimulation channel, receive an electrical stimulation instruction containing a target electrical stimulation waveform, a target electrical stimulation frequency, and a target electrical stimulation intensity, control the waveform generation module to generate a target electrical stimulation waveform of the target electrical stimulation frequency, and control the right constant current drive circuit to generate a current matching the target electrical stimulation intensity, thereby forming an electrical stimulation signal having a current corresponding to the target electrical stimulation waveform, the target electrical stimulation frequency, and the target electrical stimulation intensity, and applying it to the patient through the right stimulation electrode.

6. The electrical stimulation vestibular rehabilitation system according to claim 1, characterized in that: The impedance detection module includes: one end of the positive impedance is connected to the left stimulation positive electrode or the right stimulation positive electrode, and the other end is electrically connected to the X1 interface of the electronic switch U5; one end of the first negative impedance is connected to the left stimulation negative electrode, and the other end is electrically connected to the X2 interface of the electronic switch U5; one end of the second negative impedance is connected to the right stimulation negative electrode, and the other end is electrically connected to the Y0 interface of the electronic switch U5; the A interface and the B interface of the electronic switch U5 are both electrically connected to the IO port of the microprocessor; the VDD interface of the electronic switch U5 is connected to the power supply VCCF1, and the VSS interface is grounded; the Y interface of the electronic switch U5 is electrically connected to the positive input terminal of the operational amplifier; the negative input terminal of the operational amplifier is electrically connected to the output terminal of the operational amplifier through the resistor R13 and is also grounded through the resistor R12; the output terminal of the operational amplifier is electrically connected to the AD port of the microprocessor; The microprocessor is also used to output control signals RT1 and RT2 to control the electronic switch U5 after being selected, so as to select the positive electrode impedance, the first negative electrode impedance or the second negative electrode impedance corresponding to the electrode to be connected to the impedance test circuit to output the corresponding voltage value, and complete the impedance test of the left stimulation positive electrode or the right stimulation positive electrode, the left stimulation negative electrode and the right stimulation negative electrode. Based on the output three voltage values, the impedance value of the left stimulation positive electrode or the right stimulation positive electrode in contact with the human body, the impedance value of the left stimulation negative electrode in contact with the human body and the impedance value of the right stimulation negative electrode in contact with the human body are analyzed and calculated. When the three impedance values ​​are all less than the set impedance values, the information that each electrode is in good contact is output and transmitted to the host computer through the wireless communication module. When the target electrical stimulation channel is the left electrical stimulation channel, the first negative electrode impedance is used as the negative electrode impedance, and the second negative electrode impedance is used as the ground impedance. When the target electrical stimulation channel is the right electrical stimulation channel, the second negative electrode impedance is used as the negative electrode impedance, and the first negative electrode impedance is used as the ground impedance.

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