CN117357791A - Scalp electric stimulation device based on five-movement six-qi - Google Patents

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

A scalp electrical stimulation device based on the Five Movements and Six Qi

Technical field

The invention belongs to the technical field of physical therapy equipment design and manufacturing, and specifically relates to a scalp electrical stimulation device based on the Five Movements and Six Qi.

Background technique

At present, the theory of five movements and six qi has been applied in clinical treatment, and the representative one is a new type of acupuncture therapy of the Longsha medical school - opening and closing six qi acupuncture. The opening and closing of the six qi acupuncture method refers to: under the guidance of Professor Gu Zhishan's theory of opening and closing of the three yin and three yang, the six meridians are divided into six meridians according to the opening and closing of the three yin and three yang. A treatment method involving acupuncture. Taking the head as an example, with the Baihui point on the head as the center, there is a circle with the rise and fall of three yin and three yang. The yin and yang on the outside and inside are connected end to end. The yin and yang on both sides of the body are opposite at 180 degrees. The three yin and three yang open and close. Under the push of the pivot, the circulation continues. Because each meridian represents a certain operating area (or a certain operating period), acupuncture should be performed on 2-3 meridians based on the primary and secondary aspects obtained by the doctor. This therapy has a wide range of clinical applications (internal, external, gynecological, and pediatric). It has been clinically used in hundreds of hospitals and clinics across the country and dozens of clinics in Europe, and has achieved rapid and accurate results.

Scalp electrical stimulation is primarily used to modulate the central nervous system and function and has been studied in the fields of neurology, psychiatry, and neuropsychology. By directly applying electrical stimulation to relevant brain areas, the excitability of the neuronal membrane potential is changed, thereby regulating the activity of neuronal cells in the cerebral cortex to achieve neural regulation. Current research on the application of transcranial electrical stimulation to human neurological and psychiatric diseases mainly includes chronic migraine, depression, neurodegenerative diseases, Alzheimer's disease, epilepsy, and limb paresis caused by stroke. In recent years, medical electrical stimulation therapy has developed rapidly, and the method of combining traditional Chinese medicine acupoint stimulation with scalp electrical stimulation technology has received widespread attention. At present, domestic research teams are mainly conducting research on the parameter design and optimization of electrical stimulation devices, as well as the convenience and practicality of the devices, in order to obtain more flexible and better medical electrical stimulation devices.

In the existing technology, acupuncture therapy based on the Five Movements and Six Qi (opening and closing six-seven acupuncture methods) needs to be carried out according to the theoretical guidance of the Five Movements and Six Qi, and has certain operational requirements for the acupoint puncture technique, which is theoretically difficult and Acupuncture techniques require high technical requirements and may cause slight trauma to the skin. At the same time, patients need to undergo multiple acupuncture treatments according to their condition, which not only increases the patient's time and transportation costs, but also increases the difficulty of treatment for patients with limited mobility and long distances. , causing patients to be unable to receive timely treatment and alleviate their condition. Moreover, the traditional electrical stimulation device adjusts the current according to the user's maximum current tolerance, and cannot flexibly adjust and obtain real-time feedback from the stimulation site. It is easy to cause harm to the human body due to inaccurate parameter adjustment and unreasonable stimulation intensity. side effects.

Contents of the invention

In order to overcome the shortcomings of the above-mentioned existing technology, the purpose of the present invention is to provide a scalp electrical stimulation device based on the Five Movements and Six Qi, which has solved the problem that the existing technology cannot flexibly adjust and obtain feedback from the stimulation site in real time, and is easily affected by parameter adjustment. Technical issues related to the side effects of imprecision and unreasonable stimulation intensity on the human body.

In order to achieve the above objectives, the present invention adopts the following technical solutions to achieve:

A scalp electric stimulation device based on the Five Movements and Six Qi, including: an electric stimulation device and a headgear; the electric stimulation device is connected to a host computer via Bluetooth, the electric stimulation device and the headgear are connected through a connecting cable, and an LCD screen is provided on the electric stimulation device; the headgear There are three movable electrodes around the head based on the acupuncture treatment theory of Five Movements and Six Qi;

The electrical stimulation device is used to receive the waveform parameters output by the host computer and generate corresponding electrical stimulation signals and output them to the headgear;

The headgear is used to receive electrical stimulation signals from the electrical stimulation equipment and provide a running track for the electrodes.

Preferably, the electrical stimulation device is equipped with a main control module, a power module, a waveform generation module, a constant current source module and a voltage conversion module;

The main control module is used to receive the waveform parameters output from the host computer, convert them into corresponding instructions and send them to the waveform generation module and voltage conversion module, receive the output voltage and current values collected from the output end of the waveform generation module and feed them back to PC and LCD screen;

The waveform generation module is used to receive instructions transmitted by the main control module and generate corresponding waveform signals to transmit to the voltage conversion module;

The voltage conversion module is used to realize waveform selection through control signals; and normalize the voltage values of the signals generated by the waveform generation module and the instructions transmitted by the main control module;

The constant current source module is used to convert voltage into current output;

The power module is used to supply power to each of the above modules.

Preferably, the main control module is an STM32F407ZGT6 microcontroller.

Preferably, the waveform generation module includes a waveform generation unit and a signal conditioning unit; the waveform generation unit is an AD9106 chip for receiving instructions transmitted by the control module and generating corresponding waveform signals; the signal conditioning unit is an ADA4891 chip for voltage conversion and driving. enlarge.

Preferably, the voltage conversion module includes an ADA4891 chip and a BL1551 chip; the ADA4891 chip is used to form a proportional amplification circuit, the BL1551 chip is used to implement signal switching, and the two input terminals of the BL1551 chip are respectively connected to the main control module. The output waveform signal and the waveform signal output by the waveform generation module, the enable terminal is connected to the main control module to realize the selection of the output waveform.

Preferably, the constant current source module is an enhanced HOWLAND current pump model used to realize the constant current source output of the device.

Preferably, the power module includes a mobile power supply and/or a storage battery.

Preferably, the electrode is a circular snap-on metal dry electrode.

Preferably, the headgear is made of regenerated cellulose fiber material.

Preferably, the electrical stimulation device is also provided with a knob, and the knob is used to adjust the size of the output current.

Compared with the prior art, the present invention has the following beneficial effects:

Based on the five-yun-six-qi acupuncture treatment theory, this application designed three movable electrodes around the head, and combined with the wearable design, a headgear was designed for the electrodes as a track for the electrodes to run around the head, making the electrodes and The headgear design increases the convenience and comfort of use. Compared with traditional electrical stimulation devices, this device realizes human-computer interactive electrical stimulation through the host computer and LCD screen. It can flexibly adjust the waveform parameters according to the user's conditions to meet the needs of multiple waveform selection, waveform frequency, and waveform amplitude modulation, and Through real-time feedback of stimulation information, the side effects on the human body caused by inaccurate parameter adjustment and unreasonable stimulation intensity are reduced, breaking the barriers that traditional electrical stimulation stimulation methods cannot be flexibly adjusted and cannot be fed back in real time, ensuring the safety and effectiveness of the technology. . This application combines electrical stimulation treatment with acupuncture treatment of Five Movements and Six Qi, which solves the problem of trauma during acupuncture treatment, and solves the problems of long time and high transportation cost of going to the hospital for Five Movements and Six Qi treatments. It solves the problem that traditional acupuncture therapy cannot be used at home, and to a certain extent promotes the development of Five Yun and Six Qi acupuncture treatments. Compared with traditional electrical stimulation equipment, this equipment ensures the safety and accuracy of stimulation through real-time stimulation information feedback and control; users can flexibly adjust stimulation parameters, which greatly improves the effect of electrical stimulation treatment. By designing a special headgear, the user's convenience and comfort during electrical stimulation are greatly improved.

Description of the drawings

Figure 1 is a structural block diagram of the scalp electrical stimulation device;

Figure 2 is a schematic diagram of the overall device.

Among them: 1-power plug; 2-LCD screen; 3-electric stimulation equipment; 4-connecting cable; 5-headgear; 6-electrodes 7-knob.

Detailed ways

In order to enable those skilled in the art to better understand the solutions of the present invention, 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 only These are some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts should fall within the scope of protection of the present invention.

It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the invention described herein are capable of being practiced in sequences other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, e.g., a process, method, system, product, or apparatus that encompasses a series of steps or units and need not be limited to those explicitly listed. Those steps or elements may instead include other steps or elements not expressly listed or inherent to the process, method, product or apparatus.

The present invention will be described in further detail below in conjunction with the accompanying drawings:

Referring to Figure 2, this application discloses a scalp electric stimulation device based on the Five Movements and Six Qi, including: an electric stimulation device 3 and a headgear 5; the electric stimulation device 3 is connected to the host computer via Bluetooth, and the electric stimulation device 3 and the headgear 5 are connected through The wire 4 is connected, and the electric stimulation device 3 is provided with an LCD screen 2; the headgear 5 is provided with three movable electrodes 6 around the head according to the five-yun-six-qi acupuncture treatment theory;

The electrical stimulation device 3 is used to receive the waveform parameters output by the host computer and generate corresponding electrical stimulation signals and output them to the headgear 5;

The headgear 5 is used to receive the electrical stimulation signal from the electrical stimulation device 3 and provide a running track for the electrode 6 .

This device combines the advanced five-yun and six-qi acupuncture theory of traditional Chinese medicine and hardware technology to design a scalp electrical stimulation device based on the five-yun and six-qi theory. This device is connected to the host computer, and users can perform scalp electrical stimulation treatment at home, meeting people's needs for home-based treatment. In addition, based on the five-yun-six-qi acupuncture treatment theory, three movable electrodes around the head were designed, and combined with the wearable design, a headgear was designed for the electrodes as a track for the electrodes to run around the head, making the electrodes and The headgear design increases the convenience and comfort of use. Compared with traditional electrical stimulation devices, this device realizes human-computer interactive electrical stimulation through the host computer and LCD screen. It can flexibly adjust the waveform parameters according to the user's conditions to meet the needs of multiple waveform selection, waveform frequency, and waveform amplitude modulation, and Through real-time feedback of stimulation information, the side effects on the human body caused by inaccurate parameter adjustment and unreasonable stimulation intensity are reduced, breaking the barriers that traditional electrical stimulation stimulation methods cannot be flexibly adjusted and cannot be fed back in real time, ensuring the safety and effectiveness of the technology. .

In this application, the host computer and the stimulation signal generation platform transmit information through Bluetooth. After selecting the stimulation waveform parameters on the host computer, they are transmitted to the electrical stimulation device 3 via Bluetooth. The electrical stimulation device 3 generates corresponding waveform signals and then acts on the scalp through leads and electrodes. The internal system architecture of the electrical stimulation device 3 is shown in Figure 1. The electrical stimulation device 3 is equipped with a main control module, a power module, a waveform generation module, a constant current source module and a voltage conversion module;

The main control module is used to receive the waveform parameters output from the host computer, convert them into corresponding instructions and send them to the waveform generation module and voltage conversion module, receive the output voltage and current values collected from the output end of the waveform generation module and feed them back to Host computer and LCD screen 2;

The waveform generation module is used to receive instructions transmitted by the main control module and generate corresponding waveform signals to transmit to the voltage conversion module;

The voltage conversion module is used to realize waveform selection through control signals; and normalize the voltage values of the signals generated by the waveform generation module and the instructions transmitted by the main control module;

The constant current source module is used to convert voltage into current output;

The power module is used to supply power to each of the above modules.

The main control module uses STM32F407ZGT6 microcontroller chip to realize the output control of the device. The microcontroller communicates and interacts with the human-machine interface, receives the output waveform parameters passed from the Bluetooth module, and converts them into corresponding instructions and sends them to the waveform generation module and voltage conversion module. At the same time, the microcontroller receives the output collected from the output end of the waveform generation module. The voltage and current values are fed back to the host computer and LCD screen to realize real-time control of the output signal and stimulation status. The main control module is the center of the entire device, ensuring the stable and efficient operation of the device.

The waveform generation module uses ADI's waveform generator AD9106 chip and low-cost CMOS amplifier ADA4891 chip. The main function of the AD9106 chip is to receive the working status commands, working modes, waveform parameters and other data transmitted by the microcontroller, and generate corresponding waveform signals. The function of the ADA4891 chip is voltage conversion and drive amplification to meet subsequent output needs.

The voltage conversion module uses the ADA4891 chip and Belling's BL1551 chip. The function of the ADA4891 chip is to form a proportional amplification circuit to normalize the voltage value of the signal generated by the waveform generation module and the waveform signal output by the microcontroller; the function of the BL1551 chip is to realize waveform selection through control signals.

The constant current source module uses the enhanced HOWLAND current pump model, which uses the OP07 chip. The function of this module is to convert voltage into current output, and when the operational amplifier stability conditions are met, the output current is determined by the input voltage, and changes in the load will not affect the output current value, thus satisfying the device's constant current source output.

The function of the power module is to convert the input 5V voltage into the power supply voltage required by each chip, and to provide power to each module and chip. The chips used are ADM7160AUJZ, A0505S-1WRS, and E0505S-1WR3.

The LCD screen is mainly used to display the maximum stimulation value; the host computer is used to set stimulation parameters. The device sets parameters such as stimulation waveform, waveform frequency, waveform slope, and waveform duty cycle through the host computer, and displays the output waveform frequency, current, voltage, and resistance values on the LCD screen and the host computer in real time during the operation of the device.

Bluetooth transmission is used to realize communication between the host computer and the main control module, using HC-05 with strong transmission stability. When the host computer sends a signal, the host computer sends the data through the Bluetooth client according to the Bluetooth protocol, and then Bluetooth passes it to the microcontroller in the main control module. When the main control module receives the feedback information from the output end, the main control module sends data through the serial port and transmits it to the Bluetooth module for reception. The Bluetooth module converts the serial port information into Bluetooth protocol data for transmission, which is received by the Bluetooth module in the mobile phone.

In some embodiments, the electrode 6 used in this application is a snap-on metal dry electrode. The commonly used electrodes for transcranial electrical stimulation are sponge electrodes. The sponge needs to be soaked in saline during use, and the size of the sponge is about 25mm × 25mm. This will reduce the user's comfort, and the electrodes need to be tight during electrical stimulation. Sticking to the scalp, the larger sponge area cannot stick to the scalp due to the interference of hair. Therefore, this paper uses metal dry electrodes. And square electrodes can easily cause tingling and burning sensations. Therefore, we chose to use round electrodes to reduce the skin side effects of subjects during electrical stimulation. The electrode area will affect the stimulation effect. According to literature, for stimulation with the same input current intensity and electrode spacing, the electrode area will directly affect the peak current density. As the electrode area becomes larger, the peak current density will decrease, and The focus of the current will also be reduced, resulting in a weakening of the overall stimulation effect. Therefore, a circular electrode with a diameter of 10mm was selected in this article. A set of electrodes consists of a cathode and an anode. Recent studies have shown that as the distance between electrodes 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. , taking into account the above factors, we decided that the distance between electrodes is 30mm. The "track" that fixes the electrode is made of regenerated cellulose fiber material. It is light and thin but has strong toughness, which can achieve the effect of fixing the electrode and not being easily damaged. In order to facilitate the sliding and fixing of the electrode base, this article uses 3.2cm wide nylon human pattern webbing material and 3.8cm snap-on buckles to make a headgear.

Example:

The main control module is the control center of the entire system, and its main function is to control the output of the device. The main control module receives the output waveform parameters passed from the Bluetooth module, and converts them into corresponding instructions and sends them to the waveform generation module and voltage conversion module. At the same time, the microcontroller receives the output voltage and current values collected from the output end and feeds them back to the host. machine and LCD screen to realize real-time control of output signals and stimulation status. We use the STM32F407ZGT6 microcontroller.

The waveform generation module mainly consists of two parts. One part is the waveform generation part mainly composed of AD9106 chip. Its main function is to receive the working status command, working mode, waveform parameters and other data transmitted by the microcontroller, and generate the corresponding waveform signal. In addition, during the operation of the AD9106 chip, in order to reduce the interference caused by the digital part to the analog part, this application separates the digital power supply and the analog power supply. The other part is the signal conditioning part, which is mainly composed of the ADA4891 chip. Its function is voltage conversion and drive amplification to meet the needs of subsequent output.

After the system is started, register reset and initialization operations are performed on the AD9106, which mainly includes clock signal selection, initial signal amplitude, phase, frequency setting and operating mode selection, and then the initial signal output is started. During the working process, the main control module communicates with the AD9106 through the SPI interface to control the circuit. Through customized serial port commands, it can control the start and stop of the output signal, set parameters such as signal amplitude and frequency, and change the output signal state.

The voltage conversion module uses the ADA4891 chip and BL1551 chip. In this module, the ADA4891 chip is used to form a proportional amplifier circuit. In this module, the BL1551 chip implements the signal switching function. The input terminal is connected to the waveform signal output by the microcontroller and the waveform signal output by the waveform generation module. The enable terminal is connected to the microcontroller, and the microcontroller realizes the output of the input terminal of the BL1551 chip by controlling the enable terminal, thereby realizing the selection of the output waveform. The constant current source output circuit uses the chip OP07. Since everyone has different thresholds for electrical stimulation, the current intensity in current domestic and foreign electrical stimulation studies is mostly based on the subject's tolerance. In this article, a sliding rheostat is connected to knob 7, and the intensity is adjusted through knob 7. Achieve better therapeutic effects.

The electrode used in this article is a snap-on metal dry electrode. The commonly used electrodes for transcranial electrical stimulation are sponge electrodes. The sponge needs to be soaked in saline during use, and the size of the sponge is about 25mm × 25mm. This will reduce the user's comfort, and the electrodes need to be tight during electrical stimulation. Sticking to the scalp, the larger sponge area cannot stick to the scalp due to the interference of hair. Therefore, this article uses metal dry electrodes. And square electrodes can easily cause tingling and burning sensations. Therefore, we chose to use round electrodes to reduce the skin side effects of subjects during electrical stimulation. The electrode area will affect the stimulation effect. According to literature, for stimulation with the same input current intensity and electrode spacing, the electrode area will directly affect the peak current density. As the electrode area becomes larger, the peak current density will decrease, and The focus of the current will also be reduced, resulting in a weakening of the overall stimulation effect. Therefore, a circular electrode with a diameter of 10mm was selected in this article. A set of electrodes consists of a cathode and an anode. Recent studies have shown that as the distance between electrodes 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. , taking into account the above factors, we decided that the distance between electrodes is 30mm.

The "track" that fixes the electrode is made of regenerated cellulose fiber material. It is light and thin but has strong toughness, which can achieve the effect of fixing the electrode and not being easily damaged. In order to facilitate the sliding and fixing of the electrode base, this article uses 3.2cm wide nylon human pattern webbing material and 3.8cm snap-on buckles to make a headgear.

The above contents are only for illustrating the technical ideas of the present invention and cannot be used to limit the protection scope of the present invention. Any changes made based on the technical ideas proposed by the present invention and based on the technical solutions shall fall within the scope of the claims of the present invention. within the scope of protection.

Claims (10)

1. A scalp electric stimulation device based on the Five Movements and Six Qi, which is characterized in that it includes: an electric stimulation device (3) and a headgear (5); the electric stimulation device (3) is connected to the host computer via Bluetooth, and the electric stimulation device (3) ) and the headgear (5) are connected through the connecting line (4), and the electric stimulation device (3) is provided with an LCD screen (2); the headgear (5) is provided with three removable buttons around the head according to the theory of acupuncture treatment of five movements and six qi. moving electrode(6); The electrical stimulation device (3) is used to receive the waveform parameters output by the host computer and generate corresponding electrical stimulation signals and output them to the headgear (5); The headgear (5) is used to receive electrical stimulation signals from the electrical stimulation device (3) and provide a running track for the electrodes (6). 2. A scalp electrical stimulation device based on the Five Movements and Six Qi according to claim 1, characterized in that the electrical stimulation device (3) is internally provided with a main control module, a power module, a waveform generation module, and a constant current module. Source module and voltage conversion module; The main control module is used to receive the waveform parameters output from the host computer, convert them into corresponding instructions and send them to the waveform generation module and voltage conversion module, receive the output voltage and current values collected from the output end of the waveform generation module and feed them back to Host computer and LCD screen (2); The waveform generation module is used to receive instructions transmitted by the main control module and generate corresponding waveform signals to transmit to the voltage conversion module; The voltage conversion module is used to realize waveform selection through control signals; and normalize the voltage values of the signals generated by the waveform generation module and the instructions transmitted by the main control module; The constant current source module is used to convert voltage into current output; The power module is used to supply power to each of the above modules. 3. A scalp electrical stimulation device based on the Five Movements and Six Qi according to claim 2, characterized in that the main control module is an STM32F407ZGT6 microcontroller. 4. A scalp electrical stimulation device based on the Five Movements and Six Qi according to claim 2, characterized in that the waveform generation module includes a waveform generation unit and a signal conditioning unit; the waveform generation unit is an AD9106 chip for receiving control. The module transmits instructions and generates corresponding waveform signals; the signal conditioning unit is the ADA4891 chip for voltage conversion and drive amplification. 5. A scalp electrical stimulation device based on the Five Movements and Six Qi according to claim 2, characterized in that the voltage conversion module includes an ADA4891 chip and a BL1551 chip; the ADA4891 chip is used to form a proportional amplification circuit, so The BL1551 chip is used to realize signal switching. The two input terminals of the BL1551 chip are respectively connected to the waveform signal output by the main control module and the waveform signal output by the waveform generation module. The enable terminal is connected to the main control module to realize the selection of the output waveform. 6. A scalp electrical stimulation device based on the Five Movements and Six Qi according to claim 2, characterized in that the constant current source module is an enhanced HOWLAND current pump model used to realize the constant current source output of the device. 7. A scalp electrical stimulation device based on the Five Movements and Six Qi according to claim 2, characterized in that the power module includes a mobile power supply and/or a storage battery. 8. A scalp electrical stimulation device based on the Five Movements and Six Qi according to claim 1, characterized in that the electrode (6) is a round snap-on metal dry electrode. 9. A scalp electric stimulation device based on the Five Movements and Six Qi according to claim 1, characterized in that the headgear (5) is made of regenerated cellulose fiber material. 10. A scalp electric stimulation device based on the Five Movements and Six Qi according to claim 1, characterized in that the electric stimulation device (3) is also provided with a knob (7), and the knob (7) is used to adjust The size of the output current.