Efficient nerve regulation and control device based on variable modulation high-frequency signal
By using a neuromodulation device based on variable modulation high-frequency signals, high-frequency carrier signals penetrate biological tissues, low-frequency modulation signals modulate nerves, and combined with power amplification and safety isolation modules, a composite stimulation current signal is output. This solves the problems of penetration depth, stimulation efficiency, and personalized control in existing non-invasive neuromodulation devices, and achieves efficient and stable neuromodulation effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-23
- Publication Date
- 2026-04-14
AI Technical Summary
Existing non-invasive neuromodulation devices have shortcomings in terms of penetration depth, stimulation efficiency, spatial accuracy, and nervous system adaptability. They also lack personalization and real-time interactivity, resulting in unstable modulation effects and poor user experience.
A neuromodulation device employing variable modulation high-frequency signals penetrates biological tissues with high-frequency carrier signals and modulates nerves with low-frequency modulation signals. Combined with power amplification and safety isolation modules, it outputs composite stimulation current signals to achieve intermittent stimulation and human-computer interaction, adapting to different physiological states.
It improves the penetration depth and accuracy of neural modulation, reduces the adaptability of the nervous system, realizes personalized and real-time neural modulation, and enhances user experience and modulation effect.
Smart Images
Figure CN121846525A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a highly efficient neural modulation device based on variable modulation high-frequency signals. Background Technology
[0002] In existing technologies, non-invasive neuromodulation devices use physical energy (such as electricity, magnetism, and sound waves) to externally regulate brain or peripheral nerve activity, such as transcranial direct current stimulation (tDCS) and transcranial alternating current stimulation (tACS). Because they avoid the risks of infection and bleeding associated with surgery, have mild side effects, and are therefore safer, more acceptable, and more convenient to use, they have received widespread attention and are mainly used in scientific research such as cognitive enhancement.
[0003] The shortcomings of existing technologies are: Physical limitations on penetration depth and stimulation efficiency: Biological tissues (skin, fat, skull, cerebrospinal fluid) constitute a complex electrical impedance network. In the low-frequency range (<1 kHz), the capacitive impedance effect of the cell membrane is significant, resulting in high impedance characteristics throughout the tissue. According to Ohm's law (… Where J is the current density, σ is the conductivity, and E is the electric field strength, under a fixed voltage, the high impedance causes a sharp decrease in the current density penetrating the skull, resulting in most of the stimulation energy being dissipated in superficial tissues and failing to effectively reach deep brain regions (such as the amygdala, anterior cingulate cortex, and other areas closely related to emotion and cognition). Increasing the stimulation intensity can partially alleviate this problem, but it easily causes side effects such as skin stinging and burning, and the energy utilization efficiency is extremely low. The mechanism of action is crude and lacks precise regulation: Traditional tACS directly uses the target nerve oscillation frequency (such as a 10 Hz alpha rhythm) as the stimulation frequency. When this low-frequency signal penetrates high-impedance tissue, it not only suffers severe attenuation, but its mechanism of action also relies heavily on the simple frequency resonance principle, resulting in low entrainment efficiency of nerve clusters, leading to unstable regulation effects and large individual variability. Limited spatial precision: It cannot precisely stimulate individual neurons or tiny nuclei as invasive methods. Furthermore, the stimulation effect varies from person to person because it is influenced by factors such as skull structure, brain anatomy, and physiological state.
[0004] The adaptability of the nervous system: Traditional fixed-parameter stimuli are often quickly adapted to by the nervous system because the nervous system will "habituate" to continuous unchanging stimuli, and its responsiveness will gradually decrease.
[0005] Furthermore, existing non-invasive neuromodulation devices have relatively simple or fixed parameter settings, making it difficult for users to make rapid, precise, and personalized adjustments based on their real-time and different physiological needs (such as transitioning from fatigue to excitement, or from anxiety to relaxation). This lack of state-specificity and real-time interactivity limits the universality of neuromodulation technology and the user experience. Summary of the Invention
[0006] The purpose of this invention is to provide a highly efficient neural modulation device based on variable modulation high-frequency signals, which can achieve more efficient regulation of nerves.
[0007] Technical solution to achieve the purpose of this invention: A highly efficient neural modulation device based on variable modulation high-frequency signals, comprising: A stimulation signal output electrode, wherein the stimulation signal output electrode is used to intermittently output stimulation current signals to regulate nerves; A high-frequency modulated electrical signal generating module, wherein the high-frequency modulated electrical signal generating module is used to generate a composite stimulation current signal formed by combining a high-frequency carrier signal and a low-frequency modulated signal; A power amplification and safety isolation module is used to amplify the signal output by the high-frequency modulated electrical signal generator module and control the output voltage within the range of human safety voltage. The signal input terminal of the power amplification and safety isolation module is connected to the signal output terminal of the high-frequency modulation electrical signal generation module, and the signal output terminal of the power amplification and safety isolation module is connected to the stimulation signal output electrode.
[0008] Furthermore, the high-frequency modulation electrical signal generation module includes a control unit, a modulation unit, a timing unit, a high-frequency carrier generator, and an arbitrary waveform generator. The timing unit is connected to the signal input terminal of the control unit, the high-frequency carrier generator is used to generate a high-frequency carrier signal, and the arbitrary waveform generator is used to generate a low-frequency modulation signal. The signal output terminal of the control unit is connected to the high-frequency carrier generator and the arbitrary waveform generator, and the signal input terminal of the modulation unit is connected to the high-frequency carrier generator, the arbitrary waveform generator, and the signal output terminal of the control unit.
[0009] Furthermore, the power amplification and safety isolation module includes a power amplifier and a transformer. The signal input terminal of the power amplifier is connected to the signal output terminal of the high-frequency modulated electrical signal generation module, the signal output terminal of the power amplifier is connected to the signal input terminal of the transformer, and the signal output terminal of the transformer is connected to the stimulation signal output electrode.
[0010] Furthermore, the high-frequency carrier signal has a frequency of 100KHz to 10MHz, and the low-frequency modulation signal has a frequency of 1Hz to 100Hz.
[0011] Furthermore, the high-frequency modulated electrical signal generating module controls the interval time of outputting the composite stimulation current signal to be 0.5 to 1.5 minutes, and the duration of each output stimulation current signal is 2 to 3 minutes.
[0012] Furthermore, the composite stimulation current signal output by the high-frequency modulated electrical signal generation module It is obtained through amplitude modulation, and the specific formula is as follows. The high-frequency carrier signal is used to penetrate biological tissue; The low-frequency modulation signal is a low-frequency modulation signal whose frequency corresponds to the target nerve oscillation rhythm and is used to modulate the target nerve. m The modulation depth has a value range of 0 < m ≤1, A c For current amplitude, f c It is a high-frequency carrier frequency.
[0013] Furthermore, the high-frequency modulated electrical signal generation module is connected to the human-machine interface component, through which a preset composite stimulation current signal output mode can be selected, so that the stimulation signal output electrode outputs a corresponding stimulation current signal.
[0014] Furthermore, the preset composite stimulation current signal output modes include sleep mode, focus mode and excitement mode, and each preset mode corresponds to a corresponding low-frequency modulation signal frequency.
[0015] Furthermore, the low-frequency modulation signal frequency corresponding to the sleep mode f m The low-frequency modulation signal frequency corresponding to the excitation mode is 1Hz to 4Hz. f m The frequency range is 18Hz to 30Hz.
[0016] Furthermore, a custom mode can be selected through the human-computer interaction component. In the custom mode, the high-frequency carrier frequency involved in the composite stimulation current signal is... f c Low-frequency modulation signal frequency f m Both the modulation depth m and the modulation depth m can be adjusted within a safe threshold range.
[0017] The beneficial effects of this invention are as follows: This invention includes a stimulation signal output electrode for intermittently outputting a stimulation current signal to modulate nerves; a high-frequency modulated electrical signal generation module for generating a composite stimulation current signal formed by combining a high-frequency carrier signal and a low-frequency modulated signal; and a power amplification and safety isolation module for amplifying the signal output from the high-frequency modulated electrical signal generation module and controlling the output voltage within the safe voltage range for the human body. The signal input terminal of the power amplification and safety isolation module is connected to the signal output terminal of the high-frequency modulated electrical signal generation module, and the signal output terminal of the power amplification and safety isolation module is connected to the stimulation signal output electrode. The high-frequency modulated electrical signal generation module generates a composite stimulation current signal formed by combining a high-frequency carrier signal and a low-frequency modulated signal. After amplification and isolation by the power amplification and safety isolation module, the composite stimulation current signal is output through the stimulation signal output electrode for nerve modulation. This invention innovatively uses a low-frequency modulated signal as the stimulation signal and a high-frequency carrier as the physical transmission medium for the stimulation signal, solving the problem of deep penetration in traditional electrical stimulation and avoiding resistance of the nervous system to the stimulation signal. This invention overcomes the limitations of existing non-invasive neuromodulation devices by combining a variable high-frequency carrier wave with a low-frequency modulated wave for stimulation. In use, the stimulation signal output electrode is attached to the neck. The neck, a crucial link between the brain and body, is rich in important nerves such as the vagus nerve and sympathetic nerves, and their relatively superficial distribution completely avoids the high-impedance skull barrier. Compared to non-invasive brain-computer interface technology, the neck stimulation target of this invention has stronger specificity for the subject, and the quality of the transmitted stimulation signal is better. This invention uses a composite stimulation current signal formed by combining a high-frequency carrier signal and a low-frequency modulated signal for neuromodulation. The high-frequency carrier wave is responsible for penetration, while the low-frequency modulated signal is responsible for nerve modulation. This allows for the regulation of human neural activity with minimal energy consumption. Through the "bridging" effect of these neural hubs, it indirectly intervenes in brain function and the overall physiological state, while effectively weakening the nervous system's adaptability to stimulation signals.
[0018] The power amplification and safety isolation module of this invention includes a power amplifier and a transformer. The signal input terminal of the power amplifier is connected to the signal output terminal of the high-frequency modulation electrical signal generation module, and the signal output terminal of the power amplifier is connected to the signal input terminal of the transformer. The signal output terminal of the transformer is connected to the stimulation signal output electrode. The high-frequency modulation electrical signal generation module includes a control unit, a modulation unit, a timing unit, a high-frequency carrier generator, and an arbitrary waveform generator. The timing unit is connected to the signal input terminal of the control unit. The high-frequency carrier generator is used to generate a high-frequency carrier signal, and the arbitrary waveform generator is used to generate a low-frequency modulation signal. The signal output terminal of the control unit is connected to the high-frequency carrier generator and the arbitrary waveform generator. The signal input terminal of the modulation unit is connected to the high-frequency carrier generator, the arbitrary waveform generator, and the control unit's signal output terminal. Through the circuit structure of the high-frequency modulation electrical signal generation module and the power amplification and safety isolation module, this invention further ensures the neuromodulation effect of the composite stimulation current signal.
[0019] The high-frequency carrier signal of this invention has a frequency of 100kHz to 10MHz, and the low-frequency modulation signal has a frequency of 1Hz to 100Hz. The composite stimulation current signal output by the high-frequency modulation electrical signal generation module... It is obtained through amplitude modulation, and the specific formula is as follows. The high-frequency carrier signal is used to penetrate biological tissue; The low-frequency modulation signal is a low-frequency modulation signal whose frequency corresponds to the target nerve oscillation rhythm and is used to modulate the target nerve. m The modulation depth has a value range of 0 < m ≤1, A c For current amplitude, f c The frequency is the current frequency. The high-frequency modulated electrical signal generation module of this invention outputs a composite stimulation current signal, wherein the low-frequency band covers various electrical signal frequency bands in the human body, which can effectively achieve nerve oscillation entrainment; the high-frequency band can significantly reduce the resistance of tissue to current, so that the stimulation can penetrate to deep brain regions with less attenuation, further ensuring the regulatory effect on nerves.
[0020] The high-frequency modulated electrical signal generation module of this invention controls the interval of the output stimulation current signal to be 0.5–1.5 minutes, and the duration of each output stimulation current signal is 2–3 minutes. The stimulation current signal output by this invention is intermittent, providing neurons with sufficient recovery time and ensuring that each stimulation of the neuron is in its "optimal state," thereby generating a complete and strong action potential. This allows signal transmission to remain accurate and efficient for extended periods. Furthermore, intermittent stimulation ensures that motor units work alternately, allowing muscles to maintain contraction for extended periods without fatigue. This enables more stable, reliable, and sustainable signal transmission, further guaranteeing the regulatory effect on the nerves.
[0021] The high-frequency modulated electrical signal generation module of this invention is connected to a human-computer interaction component. Through this component, preset composite stimulation current signal output modes can be selected, causing the stimulation signal output electrodes to output corresponding stimulation current signals. The preset composite stimulation current signal output modes include a sleep mode, a focus mode, and an excitement mode, each corresponding to a specific low-frequency modulation signal frequency. The low-frequency modulation signal frequency corresponding to the sleep mode is... f m The low-frequency modulation signal frequency corresponding to the excitation mode is 1Hz to 4Hz. f m The frequency range is 18Hz to 30Hz. A custom mode can be selected via the human-computer interaction component. In the custom mode, the high-frequency carrier frequency involved in the composite stimulation current signal... f c Low-frequency modulation signal frequency f m Both the modulation depth m and the modulation depth m can be adjusted within a safe threshold range. This invention enables the regulation of nerves in multiple preset modes through human-computer interaction components, and also enables real-time regulation of nerves in a custom mode. It realizes intelligent nerve regulation from "unidirectional stimulation" to "state adaptation and real-time interaction". Users can make rapid, precise and personalized adjustments according to their own real-time and different physiological needs (such as from fatigue to excitement, or from anxiety to relaxation), further ensuring the effect of nerve regulation. Attached Figure Description
[0022] Figure 1 This is a circuit diagram of the efficient neural modulation device based on variable modulation high-frequency signals of the present invention. Figure 2 This is a schematic diagram illustrating the working principle of the efficient neural modulation device based on variable modulation high-frequency signals of this invention. Detailed Implementation
[0023] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, it should be noted that these embodiments are not intended to limit the present invention. Equivalent changes or substitutions in function, method, or structure made by those skilled in the art based on these embodiments are all within the scope of protection of the present invention.
[0024] like Figure 1 As shown, the efficient neural modulation device based on variable modulation high-frequency signals of the present invention includes: Stimulation signal output electrode: The electrodes intermittently output stimulating current signals to modulate nerves. In practice, in addition to the stimulating signal output electrodes, there are also acquisition electrodes and reference electrodes. The acquisition electrodes are used to monitor the nerve modulation effect, and the reference electrodes are used to provide a reference potential.
[0025] High-frequency modulated electrical signal generation module: The high-frequency modulated electrical signal generation module is used to generate a composite stimulation current signal formed by combining a high-frequency carrier signal and a low-frequency modulation signal. It can generate a modulated current stimulation signal within a safe voltage range in real time according to user parameter settings and control the duration of alternating stimulation. The high-frequency modulated electrical signal generation module includes a control unit, a modulation unit, a timing unit, a high-frequency carrier generator, and an arbitrary waveform generator. The timing unit is connected to the signal input terminal of the control unit. The high-frequency carrier generator generates a high-frequency carrier signal, and the arbitrary waveform generator generates a low-frequency modulation signal. The signal output terminal of the control unit is connected to the high-frequency carrier generator and the arbitrary waveform generator. The signal input terminal of the modulation unit is connected to the high-frequency carrier generator, the arbitrary waveform generator, and the signal output terminal of the control unit. The frequency of the high-frequency carrier signal is 100kHz to 10MHz, and the frequency of the low-frequency modulation signal is 1Hz to 100Hz. The high-frequency modulated electrical signal generation module controls the interval time of outputting the composite stimulation current signal to be 0.5 to 1.5 minutes, and the duration of each output stimulation current signal is 2 to 3 minutes.
[0026] The composite stimulation current signal output by the high-frequency modulated electrical signal generation module It is obtained through amplitude modulation, and the specific formula is as follows. The high-frequency carrier signal is used to penetrate biological tissue; The low-frequency modulation signal is a low-frequency modulation signal whose frequency corresponds to the target nerve oscillation rhythm and is used to modulate the target nerve. m The modulation depth has a value range of 0 < m ≤1, A cFor current amplitude, f c It is a high-frequency carrier frequency.
[0027] A high-frequency modulated electrical signal generation module is connected to a human-machine interface (such as buttons or a touch screen). Through this interface, preset composite stimulation current signal output modes can be selected, causing the stimulation signal output electrodes to output corresponding stimulation current signals. The preset composite stimulation current signal output modes include sleep mode, focus mode, and excitement mode, each corresponding to a specific low-frequency modulation signal frequency. The low-frequency modulation signal frequency corresponding to sleep mode is... f m The low-frequency modulation signal frequency corresponding to the excitation mode is 1Hz to 4Hz. f m The frequency range is 18Hz to 30Hz. A custom mode can be selected via the human-computer interaction component. In the custom mode, the high-frequency carrier frequency involved in the composite stimulation current signal... f c Low-frequency modulation signal frequency f m Both the modulation depth m and the modulation depth m can be adjusted within a safe threshold range.
[0028] Power Amplification and Safety Isolation Module: The power amplification and safety isolation module is used to amplify the signal output by the high-frequency modulation electrical signal generation module and control the output voltage within the safe voltage range for the human body. The power amplification and safety isolation module includes a power amplifier and a transformer. The signal input terminal of the power amplifier is connected to the signal output terminal of the high-frequency modulation electrical signal generation module, the signal output terminal of the power amplifier is connected to the signal input terminal of the transformer, and the signal output terminal of the transformer is connected to the stimulation signal output electrode.
[0029] The signal input terminal of the power amplification and safety isolation module is connected to the signal output terminal of the high-frequency modulation electrical signal generation module, and the signal output terminal of the power amplification and safety isolation module is connected to the stimulation signal output electrode.
[0030] The working principle of the present invention will be further explained below.
[0031] Frequency characteristics of tissue electrical impedance and the principle of penetration enhancement: Total impedance of biological tissues It can be modeled as a parallel circuit of a resistor and a capacitor, and the relationship between its magnitude and frequency can be described by the following simplified form: in, For tissue resistance, The equivalent capacitance of the cell membrane. Let be the frequency of the current. This function tends to a constant value at low frequencies. At high frequencies, it is approximately equal to The rate decreases. This means that, at the same stimulation voltage, using a high frequency ( f high The tissue current density J generated by an electrical signal will be much greater than that of a low-frequency current. f low ): Therefore, using high-frequency carrier waves can significantly reduce the resistance of tissues to electrical current, allowing stimulation to penetrate deep brain regions with less attenuation.
[0032] Signal modulation and neural oscillation entrainment principle: Signal modulation is based on the theory of neural oscillation entrainment. The basic principle of neural oscillation entrainment is that external rhythmic stimuli can induce synchronous neural oscillations in corresponding brain regions, thus synchronizing brain neural oscillations with external rhythmic stimuli. Signal modulation, based on this theory, promotes the conversion of biological neural electrical signals to a target rhythm through the modulation of external signals, thereby achieving neural regulation. This invention does not directly apply low-frequency neural rhythms, but rather uses amplitude modulation technology to generate composite stimulation signals.
[0033] The principle of intermittent stimulation: When nerves are subjected to continuous, high-intensity electrical stimulation, after the initial burst of action potential, the short interval between stimulations may prevent subsequent stimulation from triggering action potentials; or the neuron may adapt due to continuous depolarization, causing voltage-gated channels to become inactive and synapses to be unable to continue transmitting signals due to rapid depletion of neurotransmitters at the nerve endings. Therefore, this invention employs intermittent stimulation to provide neurons with sufficient recovery time, ensuring that each stimulation keeps the neuron in its "optimal state," generating a complete and strong action potential, allowing signal transmission to remain accurate and efficient for extended periods. Furthermore, intermittent stimulation also ensures that motor units work alternately, allowing muscles to maintain contraction for extended periods without fatigue. Therefore, this stimulation mode achieves more stable, reliable, and sustainable signal transmission.
[0034] At work, such as Figure 1 , Figure 2 As shown, after wearing the device, the user attaches the stimulation signal output electrodes to the splenius capitis and splenius capitis muscles in the neck, ensuring stable contact between the electrodes and the skin. The user selects a preset composite stimulation current signal output mode via the human-computer interaction component. Output modes include sleep mode, focus mode, and excitement mode, each corresponding to a specific low-frequency modulation signal frequency. The low-frequency modulation signal frequency corresponding to sleep mode is shown below. f mThe frequency range is 1Hz to 4Hz; in this embodiment, 2Hz is selected, which is the low-frequency modulation signal frequency corresponding to the excitation mode. f m The frequency range is 18Hz to 30Hz; in this embodiment, 20Hz is selected, which is the low-frequency modulation signal frequency corresponding to the focus mode. f m The frequency range is 8Hz to 13Hz; in this embodiment, 10Hz is selected. High-frequency carrier frequency. f c The frequency range is 100kHz to 10MHz; in this example, it is set to 500kHz. Modulation depth m The range of values is 0 < m ≤1, In this embodiment, m The value is 0.5. The precise selection of the high-frequency carrier signal frequency requires comprehensive consideration of the tissue thickness at the actual electrode connection location, the estimated depth of the target sympathetic nerve bundle, and the safe output voltage range of the device, to achieve energy delivery within a safe threshold. The interval between output stimulation current signals is 0.5–1.5 minutes, and the duration of each output stimulation current signal is 2–3 minutes. In this embodiment, the duration of each output stimulation current signal is 2 minutes, and the interval is 1 minute. The user can select a custom mode through the human-computer interaction component. In the custom mode, the high-frequency carrier frequency involved in the composite stimulation current signal... f c Low-frequency modulation signal frequency f m Both the modulation depth m and the modulation depth m can be adjusted within a safe threshold range.
[0035] The high-frequency modulated electrical signal generation module generates a composite high-frequency electrical stimulation signal based on the initial parameters set in the preset mode. This signal is amplified by the power amplification and safety isolation module before being applied to the target area of the neck through stimulation electrodes. The generated high-frequency modulated current is designed to penetrate the superficial tissue non-invasively and primarily act on the deep cervical sympathetic nerve bundles. In custom mode, users can fine-tune the stimulation intensity (signal amplitude, modulation depth) and modulation frequency within a safe range based on their own sensations (such as the warmth sensation in the stimulation area, the degree of muscle relaxation, or the improvement of target physiological indicators). User-preferred parameter combinations can be recorded to create a personalized database for direct retrieval later.
[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.
Claims
1. A highly efficient neural modulation device based on variable modulation high-frequency signals, characterized in that: include: A stimulation signal output electrode, wherein the stimulation signal output electrode is used to intermittently output stimulation current signals to regulate nerves; A high-frequency modulated electrical signal generating module, wherein the high-frequency modulated electrical signal generating module is used to generate a composite stimulation current signal formed by combining a high-frequency carrier signal and a low-frequency modulated signal; A power amplification and safety isolation module is used to amplify the signal output by the high-frequency modulated electrical signal generator module and control the output voltage within the range of human safety voltage. The signal input terminal of the power amplification and safety isolation module is connected to the signal output terminal of the high-frequency modulation electrical signal generation module, and the signal output terminal of the power amplification and safety isolation module is connected to the stimulation signal output electrode.
2. The high-efficiency neural modulation device based on variable modulation high-frequency signals according to claim 1, characterized in that: The high-frequency modulated electrical signal generation module includes a control unit, a modulation unit, a timing unit, a high-frequency carrier generator, and an arbitrary waveform generator. The timing unit is connected to the signal input terminal of the control unit. The high-frequency carrier generator is used to generate a high-frequency carrier signal, and the arbitrary waveform generator is used to generate a low-frequency modulated signal. The signal output terminal of the control unit is connected to the high-frequency carrier generator and the arbitrary waveform generator. The signal input terminal of the modulation unit is connected to the high-frequency carrier generator, the arbitrary waveform generator, and the signal output terminal of the control unit.
3. The high-efficiency neural modulation device based on variable modulation high-frequency signals according to claim 1, characterized in that: The power amplification and safety isolation module includes a power amplifier and a transformer. The signal input terminal of the power amplifier is connected to the signal output terminal of the high-frequency modulated electrical signal generation module, the signal output terminal of the power amplifier is connected to the signal input terminal of the transformer, and the signal output terminal of the transformer is connected to the stimulation signal output electrode.
4. The high-efficiency neural modulation device based on variable modulation high-frequency signals according to claim 1, characterized in that: The high-frequency carrier signal has a frequency of 100KHz to 10MHz, and the low-frequency modulation signal has a frequency of 1Hz to 100Hz.
5. The high-efficiency neural modulation device based on variable modulation high-frequency signals according to claim 1, characterized in that: The high-frequency modulated electrical signal generation module controls the interval of outputting composite stimulation current signals to be 0.5 to 1.5 minutes, and the duration of each output stimulation current signal is 2 to 3 minutes.
6. The high-efficiency neural modulation device based on variable modulation high-frequency signals according to claim 1, characterized in that: The composite stimulation current signal output by the high-frequency modulated electrical signal generation module It is obtained through amplitude modulation, and the specific formula is as follows. The high-frequency carrier signal is used to penetrate biological tissue; The low-frequency modulation signal is a low-frequency modulation signal whose frequency corresponds to the target nerve oscillation rhythm and is used to modulate the target nerve. m The modulation depth has a value range of 0 < m ≤1, A c For current amplitude, f c It is a high-frequency carrier frequency.
7. The high-efficiency neural modulation device based on variable modulation high-frequency signals according to claim 6, characterized in that: The high-frequency modulated electrical signal generation module is connected to the human-machine interaction component. The human-machine interaction component allows selection of a preset composite stimulation current signal output mode, so that the stimulation signal output electrode outputs a corresponding stimulation current signal.
8. The high-efficiency neural modulation device based on variable modulation high-frequency signals according to claim 7, characterized in that: The preset composite stimulation current signal output modes include sleep mode, focus mode and excitement mode, and each preset mode corresponds to a corresponding low-frequency modulation signal frequency.
9. The high-efficiency neural modulation device based on variable modulation high-frequency signals according to claim 8, characterized in that: Low-frequency modulation signal frequency corresponding to sleep mode f m The low-frequency modulation signal frequency corresponding to the excitation mode is 1Hz to 4Hz. f m The frequency range is 18Hz to 30Hz.
10. The high-efficiency neural modulation device based on variable modulation high-frequency signals according to claim 7, characterized in that: A custom mode can be selected via the human-computer interaction component. In the custom mode, the high-frequency carrier frequency involved in the composite stimulation current signal... f c Low-frequency modulation signal frequency f m Both the modulation depth m and the modulation depth m can be adjusted within a safe threshold range.