CN117357791A - Scalp electric stimulation device based on five-movement six-qi - Google Patents
Scalp electric stimulation device based on five-movement six-qi Download PDFInfo
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Abstract
The invention discloses a scalp electrical stimulation device based on five-fortune six-qi, which designs three electrodes which can move around the head according to the five-fortune six-qi acupuncture treatment theory, combines the wearable design, designs a head cover for the electrodes as a track for the electrodes to move around the head, facilitates firm electrode and head cover design, and increases the convenience and comfort of use. Compared with the traditional electric stimulation device, the device realizes man-machine interaction type electric stimulation through the upper computer and the LCD screen, can flexibly adjust waveform parameters according to the condition of a user, meets the requirements of selecting a plurality of waveforms, modulating waveform frequency and waveform amplitude, reduces side effects on human bodies caused by inaccurate parameter adjustment and unreasonable stimulation intensity through real-time feedback of stimulation information, breaks barriers that the stimulation mode of the traditional electric stimulation cannot be flexibly adjusted and cannot be fed back in real time, and ensures the safety and the effectiveness of the technology.
Description
Technical Field
The invention belongs to the technical field of design and manufacture of physiotherapy equipment, and particularly relates to a scalp electrical stimulation device based on five-movement six-qi.
Background
At present, the five-movement six-qi theory is applied to clinical treatment, and is a novel needling therapy-open-close six-qi acupuncture method of the medical genre of the dragon sand. The open-close six-air acupuncture method means: under the guidance of Gu Zhishan, the three yin and three yang opening and closing theory divides six meridians everywhere in the whole body, and according to the acquired disease image, acupuncture is performed on the corresponding six meridians. Taking the head as an example, there is a circle with the preponderance and declination of three yin and three yang in the center of the head Baihui acupoint, the yin and yang of the two sides are connected end to end, the yin and yang of the two sides are 180 degrees opposite, and the three yin and three yang are driven by the opening and closing pivot, so that the peripheral flow is not stopped. Because each meridian represents a certain operating area (or a certain operating period), the needling is performed for 2-3 meridians according to the primary and secondary aspects obtained by the practitioner. The clinical application range of the therapy is wide (internal, external, gynecological, pediatric) and the like, and the therapy has quick and definite curative effect in hundreds of hospitals, doctors and tens of clinics in Europe.
Scalp electrical stimulation is used primarily to regulate central nervous system and function, and is studied in the neurological, psychiatric and neuropsychological fields. The excitability of the neuron membrane potential is changed by directly applying electric stimulation to the relevant brain region, so that the activity of the cerebral cortex neuron cells is regulated, and the nerve regulation effect is achieved. The current research of applying transcranial electrical stimulation to human nerve and mental diseases mainly comprises chronic migraine, depression, neurodegenerative diseases, alzheimer's disease, epilepsy, limb paresis caused by stroke and the like. In recent years, medical electric stimulation therapy has been developed rapidly, and a method of combining acupoint stimulation and scalp electric stimulation technology in traditional Chinese medicine has been paid great attention. At present, domestic research teams mainly develop researches around parameter design and optimization of an electric stimulation device, convenience, practicability and the like of the device, so as to obtain a medical electric stimulation device with more flexibility and better effect.
In the prior art, acupuncture therapy (opening and closing six-seven-needle method) based on five-movement six-qi needs to be performed according to the theoretical guidance of five-movement six-qi, has certain operation requirements on the acupuncture point penetration method, and has the problems of high theoretical difficulty, high needle application technical requirement, slight skin trauma and the like; meanwhile, the patient carries out acupuncture treatment for multiple times according to the needs of the illness state, so that the time and the traffic cost of the patient are increased, the treatment difficulty is increased for the patient with inconvenient movement and farther distance, and the patient cannot be timely treated and the illness state is relieved. The traditional electric stimulation device adjusts the current according to the maximum current tolerance value of a user, can not be flexibly adjusted, and can obtain the feedback condition of the stimulation part in real time, and side effects on the human body are easily caused by inaccurate parameter adjustment and unreasonable stimulation intensity.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a scalp electric stimulation device based on five-movement-six-qi, which solves the technical problems that the prior art cannot flexibly adjust and obtain feedback conditions of stimulation parts in real time, and side effects on human bodies are easily caused by inaccurate parameter adjustment and unreasonable stimulation intensity.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
a scalp electrical stimulation device based on five fortune six qi, comprising: an electrical stimulation device and a headgear; the electric stimulation equipment is connected with the upper computer Bluetooth, the electric stimulation equipment is connected with the headgear through a connecting wire, and an LCD screen is arranged on the electric stimulation equipment; three electrodes which can move around the head are arranged on the headgear according to the five-movement six-air acupuncture treatment theory;
the electric stimulation equipment is used for receiving waveform parameters output by the upper computer, correspondingly generating electric stimulation signals and outputting the electric stimulation signals to the headgear;
the headgear is used for receiving the electric stimulation signals sent by the electric stimulation equipment and providing a running track for the electrodes.
Preferably, a main control module, a power supply module, a waveform generation module, a constant current source module and a voltage conversion module are arranged in the electric stimulation equipment;
the main control module is used for receiving waveform parameters output by the upper computer, converting the waveform parameters into corresponding instructions, sending the corresponding instructions to the waveform generation module and the voltage conversion module, receiving output voltage and current values acquired by the output end of the waveform generation module and feeding the output voltage and current values back to the upper computer and the LCD screen;
the waveform generation module is used for receiving the instruction transmitted by the main control module, generating a corresponding waveform signal and transmitting the corresponding waveform signal to the voltage conversion module;
the voltage conversion module is used for realizing waveform selection through control signals; normalizing the signal generated by the waveform generation module and the voltage value of the instruction transmitted by the main control module;
the constant current source module is used for converting voltage into current and outputting the current;
the power module is used for supplying power to the modules.
Preferably, the main control module is an STM32F407ZGT6 singlechip.
Preferably, the waveform generation module comprises a waveform generation unit and a signal conditioning unit; the waveform generation unit is an AD9106 chip and is used for receiving the instruction transmitted by the control module and generating a corresponding waveform signal; the signal conditioning unit is an ADA4891 chip for voltage conversion and driving amplification.
Preferably, the voltage conversion module comprises an ADA4891 chip and a BL1551 chip; the ADA4891 chip is used for forming a proportional amplifying circuit, the BL1551 chip is used for realizing signal switching, two input ends of the BL1551 chip are respectively connected with a waveform signal output by the main control module and a waveform signal output by the waveform generating module, and an enabling end is connected with the main control module to realize output waveform selection.
Preferably, the constant current source module is an enhanced HOWLAND current pump model and is used for realizing device constant current source output.
Preferably, the power module comprises a mobile power source and/or a storage battery.
Preferably, the electrode is a circular snap metal dry electrode.
Preferably, the headgear is made of regenerated cellulose fibre material.
Preferably, the electrical stimulation device is further provided with a knob, and the knob is used for adjusting the output current.
Compared with the prior art, the invention has the following beneficial effects:
according to the five-movement six-air acupuncture treatment theory, three electrodes which surround the head and are movable are designed, and the wearable design is combined, so that a headgear is designed for the electrodes to serve as a track for the electrodes to move around the head, the design of the electrodes and the headgear is convenient and firm, and the convenience and the comfort of use are improved. Compared with the traditional electric stimulation device, the device realizes man-machine interaction type electric stimulation through the upper computer and the LCD screen, can flexibly adjust waveform parameters according to the condition of a user, meets the requirements of selecting a plurality of waveforms, modulating waveform frequency and waveform amplitude, reduces side effects on human bodies caused by inaccurate parameter adjustment and unreasonable stimulation intensity through real-time feedback of stimulation information, breaks barriers that the stimulation mode of the traditional electric stimulation cannot be flexibly adjusted and cannot be fed back in real time, and ensures the safety and the effectiveness of the technology. The electric stimulation therapy is combined with the acupuncture therapy of five-fortune six-qi, so that the problem that wounds are generated during the acupuncture therapy is solved, the problems of high time cost and high traffic cost of the treatment of five-fortune six-qi by going to a hospital are solved, the problem that the traditional acupuncture therapy cannot be used for home use is solved, and the development of the acupuncture therapy of five-fortune six-qi is promoted to a certain extent. Compared with the traditional electric stimulation equipment, the equipment ensures the safety and accuracy of stimulation through real-time stimulation information feedback and control; the user can flexibly adjust the stimulation parameters, and the effect of the electric stimulation treatment is greatly improved. By designing the special headgear, the convenience and the comfort of a user during electric stimulation are greatly improved.
Drawings
Fig. 1 is a block diagram of a scalp electrical stimulation device;
fig. 2 is an overall schematic view of the device.
Wherein: 1-a power plug; 2-LCD screen; 3-an electrical stimulation device; 4-connecting wires; 5-headgear; 6-electrode 7-knob.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The invention is described in further detail below with reference to the attached drawing figures:
referring to fig. 2, the present application discloses a scalp electrical stimulation device based on five fortune six qi, comprising: an electro-stimulation device 3 and a headgear 5; the electric stimulation equipment 3 is connected with the upper computer Bluetooth, the electric stimulation equipment 3 is connected with the head cover 5 through the connecting wire 4, and the LCD screen 2 is arranged on the electric stimulation equipment 3; three electrodes 6 which can move around the head are arranged on the headgear 5 according to the five-movement six-air acupuncture treatment theory;
the electric stimulation equipment 3 is used for receiving waveform parameters output by the upper computer and correspondingly generating electric stimulation signals to output to the headgear 5;
the head cover 5 is used for receiving the electric stimulation signals sent by the electric stimulation device 3 and providing a running track for the electrode 6.
The scalp electric stimulation device based on the five-fortune six-qi theory is designed by combining the advanced five-fortune six-qi acupuncture theory of traditional Chinese medicine and the hardware technology. The device is connected with the upper computer, so that a user can perform scalp electrical stimulation treatment at home, and the requirements of people on treatment at home are met. In addition, according to five fortune six gas acupuncture treatment theory, design three and encircle the mobilizable electrode of head to combine wearable design, designed the headgear as the track that the electrode was encircleed the head for the electrode, convenient and firm electrode and headgear design have increased convenience and the travelling comfort of use. Compared with the traditional electric stimulation device, the device realizes man-machine interaction type electric stimulation through the upper computer and the LCD screen, can flexibly adjust waveform parameters according to the condition of a user, meets the requirements of selecting a plurality of waveforms, modulating waveform frequency and waveform amplitude, reduces side effects on human bodies caused by inaccurate parameter adjustment and unreasonable stimulation intensity through real-time feedback of stimulation information, breaks barriers that the stimulation mode of the traditional electric stimulation cannot be flexibly adjusted and cannot be fed back in real time, and ensures the safety and the effectiveness of the technology.
In this application, the host computer carries out information transmission through bluetooth with the stimulation signal generation platform. After the stimulation waveform parameters are selected on the upper computer, the stimulation waveform parameters are transmitted to the electric stimulation equipment 3 through Bluetooth, and the corresponding waveform signals are generated by the electric stimulation equipment 3 and then applied to the scalp through leads and electrodes. The internal system architecture of the electrical stimulation equipment 3 is shown in fig. 1, and a main control module, a power supply module, a waveform generation module, a constant current source module and a voltage conversion module are arranged in the electrical stimulation equipment 3;
the main control module is used for receiving waveform parameters output by the upper computer, converting the waveform parameters into corresponding instructions, sending the corresponding instructions to the waveform generation module and the voltage conversion module, receiving output voltage and current values acquired by the output end of the waveform generation module and feeding the output voltage and current values back to the upper computer and the LCD screen 2;
the waveform generation module is used for receiving the instruction transmitted by the main control module, generating a corresponding waveform signal and transmitting the corresponding waveform signal to the voltage conversion module;
the voltage conversion module is used for realizing waveform selection through control signals; normalizing the signal generated by the waveform generation module and the voltage value of the instruction transmitted by the main control module;
the constant current source module is used for converting voltage into current and outputting the current;
the power module is used for supplying power to the modules.
The main control module adopts STM32F407ZGT6 singlechip chip to realize the output control of the device. The singlechip is in communication interaction with the human-computer interface, receives output waveform parameters transmitted by the Bluetooth module, converts the output waveform parameters into corresponding instructions, sends the corresponding instructions to the waveform generation module and the voltage conversion module, and simultaneously receives output voltage and current values acquired by the output end of the waveform generation module and feeds the output voltage and current values back to the upper computer and the LCD screen, so that real-time control of output signals and stimulus states is realized. The main control module is a central center of the whole device, and provides a guarantee for stable and efficient operation of the device.
The waveform generation module adopts an ADI waveform generator AD9106 chip and a low-cost CMOS amplifier ADA4891 chip. The AD9106 chip is mainly used for receiving data such as working state commands, working modes, waveform parameters and the like transmitted by the singlechip and generating corresponding waveform signals. The ADA4891 chip has the functions of voltage conversion and driving amplification so as to meet the requirement of subsequent output.
The voltage conversion module adopts an ADA4891 chip and a BL1551 chip of Bei Ling company. The ADA4891 chip has the function of forming a proportional amplifying circuit and normalizing the voltage value of the signal generated by the waveform generating module and the waveform signal output by the singlechip; the BL1551 chip is used for realizing waveform selection through control signals.
The constant current source module adopts an enhanced HOWLAND current pump model and adopts an OP07 chip. The function of the module is to convert voltage into current output, and under the condition that the operational amplifier stabilizing condition is met, the output current is determined by the input voltage, and the change of load does not influence the output current value, so that the constant current source output of the device is met.
The power supply module is used for converting the input 5V voltage into the power supply voltage required by each chip and supplying power for each module and each chip. The adopted chips are ADM7160AUJZ, A0505S-1WRS and E0505S-1WR3.
The LCD screen mainly displays the maximum stimulus value; the upper computer is used for setting the stimulation parameters. The device sets parameters such as stimulation waveform, waveform frequency, waveform slope, waveform duty ratio and the like through the upper computer, and displays output waveform frequency, current, voltage and resistance values on the LCD screen and the upper computer in real time during the operation of the device.
The Bluetooth transmission is to realize the communication between the upper computer and the main control module, and HC-05 with strong transmission stability is adopted. When the upper computer sends signals, the upper computer sends data according to a Bluetooth protocol through the Bluetooth client, and Bluetooth transmits the data to the singlechip in the main control module. After the main control module receives feedback information from the output end, the main control module sends data to the Bluetooth module for receiving through the serial port, the Bluetooth module converts the serial port information into Bluetooth protocol data for transmitting, and the Bluetooth module in the mobile phone receives the data.
In some embodiments, the electrode 6 employed in the present application is a snap-fit metal dry electrode. The common transcranial electro-stimulation electrode is a sponge electrode, when in use, the sponge needs to be soaked by saline, the size of the sponge is about 25mm multiplied by 25mm, the comfort of a user can be reduced, when in electro-stimulation, the electrode needs to be clung to the scalp, and the larger sponge area cannot be clung to the scalp under the interference of hair. Thus, a metallic dry electrode is employed herein. And square electrodes tend to cause stinging and burning sensations, we choose to use circular electrodes to reduce skin side effects in subjects when electrically stimulated. According to the literature, the electrode area directly affects the peak value of the current density when the stimulation is carried out with the same input current intensity and electrode spacing, the peak value of the current density is reduced along with the increase of the electrode area, and the current focusing property is reduced, so that the overall stimulation effect is weakened, and therefore, a round electrode with the diameter of 10mm is selected. A group of electrodes consisting of a cathode and an anode has recently been studied to show that as the inter-electrode spacing increases, the current rate on the scalp decreases, and the shunt effect of brain tissue decreases, the effective utilization of current increases, but the local stimulation effect decreases, and we determine that the inter-electrode distance is 30mm in consideration of the above factors. The orbit of the fixed electrode is made of regenerated cellulose fiber material, is light and thin, has strong toughness, and can achieve the effects of fixed electrode and difficult damage. In order to facilitate the sliding and fixing of the electrode base, a headgear is manufactured by using a nylon woven tape material with the width of 3.2cm and a snap fastener with the width of 3.8 cm.
Examples:
the main control module is a control center of the whole system and mainly acts as the output of the control device. The main control module receives output waveform parameters transmitted by the Bluetooth module, converts the output waveform parameters into corresponding instructions, and sends the corresponding instructions to the waveform generation module and the voltage conversion module, and meanwhile, the single chip receives output voltage and current values acquired by the output end and feeds the output voltage and current values back to the upper computer and the LCD screen, so that real-time control of output signals and stimulation states is realized. The STM32F407ZGT6 singlechip is adopted.
The waveform generation module mainly comprises two parts, one part is a waveform generation part mainly comprising an AD9106 chip, and the waveform generation module mainly has the function of receiving data such as working state commands, working modes, waveform parameters and the like transmitted by the singlechip and generating corresponding waveform signals. In addition, in the working process of the AD9106 chip, in order to reduce interference brought by the digital part to the analog part, the digital power supply and the analog power supply are separately supplied. The other part is a signal conditioning part mainly comprising an ADA4891 chip, and the signal conditioning part is used for voltage conversion and driving amplification so as to meet the requirement of subsequent output.
After the system is started, register resetting and initializing operation is carried out on the AD9106, and the method mainly comprises clock signal selection, initial signal amplitude, phase, frequency setting and operation mode selection, and then initial signal output is started. In the working process, the main control module communicates with the AD9106 through an SPI interface to control a circuit, and can control the start and stop of an output signal through a self-defined serial port command, set parameters such as amplitude and frequency of the signal and change the state of the output signal.
The voltage conversion module adopts an ADA4891 chip and a BL1551 chip. In the module, the ADA4891 chip is used for forming a proportional amplifying circuit, and in the module, the BL1551 chip realizes a signal switching function. The input end is connected with the waveform signal output by the singlechip end and the waveform signal output by the waveform generation module. The enabling end is connected with the singlechip, and the singlechip realizes the input end of the BL1551 chip through controlling the enabling end, thereby realizing the selection of output waveforms. The constant current source output circuit employs a chip OP07. Because the sensitivity threshold value of each person to the electric stimulation is different, the current intensity of the domestic and external electric stimulation research at present mostly takes the tolerance of the subject as the standard, and the current intensity is connected with the knob 7 through the sliding rheostat and is regulated through the knob 7, so that a better treatment effect is achieved.
The electrode used herein is a snap metal dry electrode. The common transcranial electro-stimulation electrode is a sponge electrode, when in use, the sponge needs to be soaked by saline, the size of the sponge is about 25mm multiplied by 25mm, the comfort of a user can be reduced, when in electro-stimulation, the electrode needs to be clung to the scalp, and the larger sponge area cannot be clung to the scalp under the interference of hair. Thus, a metallic dry electrode is employed herein. And square electrodes tend to cause stinging and burning sensations, we choose to use circular electrodes to reduce skin side effects in subjects when electrically stimulated. According to the literature, the electrode area directly affects the peak value of the current density when the stimulation is carried out with the same input current intensity and electrode spacing, the peak value of the current density is reduced along with the increase of the electrode area, and the current focusing property is reduced, so that the overall stimulation effect is weakened, and therefore, a round electrode with the diameter of 10mm is selected. A group of electrodes consisting of a cathode and an anode has recently been studied to show that as the inter-electrode spacing increases, the current rate on the scalp decreases, and the shunt effect of brain tissue decreases, the effective utilization of current increases, but the local stimulation effect decreases, and we determine that the inter-electrode distance is 30mm in consideration of the above factors.
The orbit of the fixed electrode is made of regenerated cellulose fiber material, is light and thin, has strong toughness, and can achieve the effects of fixed electrode and difficult damage. In order to facilitate the sliding and fixing of the electrode base, a headgear is manufactured by using a nylon woven tape material with the width of 3.2cm and a snap fastener with the width of 3.8 cm.
The above is only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited by this, and any modification made on the basis of the technical scheme according to the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (10)
1. A scalp electrical stimulation device based on five fortune six qi, characterized by comprising: an electro-stimulation device (3) and a headgear (5); the electric stimulation equipment (3) is connected with the upper computer Bluetooth, the electric stimulation equipment (3) is connected with the head sleeve (5) through the connecting wire (4), and the LCD screen (2) is arranged on the electric stimulation equipment (3); three electrodes (6) which can move around the head are arranged on the head cover (5) according to the five-movement six-air acupuncture treatment theory;
the electric stimulation equipment (3) is used for receiving waveform parameters output by the upper computer and correspondingly generating electric stimulation signals to output to the headgear (5);
the head sleeve (5) is used for receiving an electric stimulation signal sent by the electric stimulation equipment (3) and providing a running track for the electrode (6).
2. The scalp electrical stimulation device based on five-operation six-qi according to claim 1, wherein a main control module, a power supply module, a waveform generation module, a constant current source module and a voltage conversion module are arranged in the electrical stimulation device (3);
the main control module is used for receiving waveform parameters output by the upper computer, converting the waveform parameters into corresponding instructions, sending the corresponding instructions to the waveform generation module and the voltage conversion module, receiving output voltage and current values acquired by the output end of the waveform generation module and feeding the output voltage and current values back to the upper computer and the LCD screen (2);
the waveform generation module is used for receiving the instruction transmitted by the main control module, generating a corresponding waveform signal and transmitting the corresponding waveform signal to the voltage conversion module;
the voltage conversion module is used for realizing waveform selection through control signals; normalizing the signal generated by the waveform generation module and the voltage value of the instruction transmitted by the main control module;
the constant current source module is used for converting voltage into current and outputting the current;
the power module is used for supplying power to the modules.
3. The scalp electrical stimulation device based on five-operation six-qi according to claim 2, wherein the main control module is an STM32F407ZGT6 single-chip microcomputer.
4. A five-fortune six-qi based scalp electrical stimulation device as claimed in claim 2, wherein the waveform generation module comprises a waveform generation unit and a signal conditioning unit; the waveform generation unit is an AD9106 chip and is used for receiving the instruction transmitted by the control module and generating a corresponding waveform signal; the signal conditioning unit is an ADA4891 chip for voltage conversion and driving amplification.
5. The scalp electrical stimulation device based on five-fortune six-gas according to claim 2, wherein the voltage conversion module comprises an ADA4891 chip and a BL1551 chip; the ADA4891 chip is used for forming a proportional amplifying circuit, the BL1551 chip is used for realizing signal switching, two input ends of the BL1551 chip are respectively connected with a waveform signal output by the main control module and a waveform signal output by the waveform generating module, and an enabling end is connected with the main control module to realize output waveform selection.
6. The scalp electrical stimulation device based on five-operation six-qi according to claim 2, wherein the constant current source module is an enhanced HOWLAND current pump model for realizing device constant current source output.
7. A five-and-six-gas-based scalp electrical stimulation device as claimed in claim 2, wherein the power module comprises a mobile power source and/or a storage battery.
8. Scalp electrical stimulation device based on five-fortune six-gas according to claim 1, wherein the electrode (6) is a circular snap metal dry electrode.
9. Scalp electrical stimulation device based on five and six qi according to claim 1, wherein the head cover (5) is made of regenerated cellulose fiber material.
10. The scalp electrical stimulation apparatus based on five-fortune six-qi according to claim 1, wherein the electrical stimulation apparatus (3) is further provided with a knob (7), and the knob (7) is used for adjusting the output current.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118178857A (en) * | 2024-02-22 | 2024-06-14 | 广东省智能科学与技术研究院 | Constant current source waveform output method, electric stimulation device, computer device and medium |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118178857A (en) * | 2024-02-22 | 2024-06-14 | 广东省智能科学与技术研究院 | Constant current source waveform output method, electric stimulation device, computer device and medium |
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