A method and system for modulating scalp neural rhythms

Abstract

The present application relates to the technical field of cosmetic health equipment, and particularly relates to a scalp nerve rhythm regulation method and system, which comprises a frequency resonance module, a multi-modal EMS muscle electric pulse module, an endogenous micro-current module and a Neuro-Rhythm intelligent central control core module. The four modules are coupled through space-time same-frequency coupling of electroacoustic energy, and accurately target the epidermis layer, the dermis layer, the hair follicle root sheath and the aponeurotic layer of the scalp. Meanwhile, the present application provides three rhythm architectures of linear gradual closed loop, intermittent pulse gradient compound and micro-peak repair. Through dynamic breakthrough of nerve adaptability by means of nonlinear mechanical signals, three-dimensional penetration of epidermal barrier repair, dermal hair follicle nourishment and muscle layer aponeurosis release is realized. The present application can prolong the physical tolerance period of the scalp nerve by more than 3 times, and improve the microcirculation response speed by 35%.

Description

Technical Field

[0001] This invention relates to the field of beauty and health equipment technology, and in particular to a method and system for regulating scalp nerve rhythm. Background Technology

[0002] Scalp health care is an important sub-sector of the beauty and personal care industry. Scalp care equipment encompasses various types, including scalp care instruments, scalp massagers, beauty instruments, hair growth care equipment, and peripheral nerve modulation devices. However, traditional scalp care equipment has fundamental flaws in its energy output methods. Currently available devices such as basic vibrating combs, fixed red light therapy devices, and single-waveform EMS scalp massagers mostly employ constant frequency, uniform waveform, or static continuous irradiation modes. This fixed, steady-state stimulation method can lead to serious neurological adaptation problems during prolonged use.

[0003] Long-term clinical dermatological observations and electrophysiological studies have shown that after the mechanoreceptors in human skin receive physical stimulation of a single frequency or amplitude for more than tens of seconds, the frequency of nerve impulse firing of the peripheral sensory afferent fibers will decrease significantly, resulting in physical blunting of the peripheral nerves to the physical therapy energy, and causing the user's subjective sensation to weaken significantly with the extension of the use time.

[0004] Meanwhile, continuous and irregular steady-state pressure or electric field cannot effectively mobilize the compliance of vascular smooth muscle. Instead, it may induce protective contraction of local microvessels, causing the blood perfusion velocity and blood oxygen abundance of microcirculation to fail to improve continuously in the later stages of physiotherapy. Summary of the Invention

[0005] The purpose of this invention is to provide a method and system for regulating scalp nerve rhythms, in order to solve the technical problems of existing scalp care devices, such as nerve adaptation leading to nerve desensitization, vascular endothelial mechanical desensitization, resulting in decreased microcirculation response, low efficiency of deep hair follicle stimulation, and lack of coordinated control.

[0006] One aspect of the present invention provides a method for regulating scalp nerve rhythm, comprising:

[0007] It provides frequency resonance modules, multimodal EMS muscle electrical pulse modules, intrinsic microcurrent modules, and Neuro-Rhythm intelligent central control core modules;

[0008] The Neuro-Rhythm intelligent central control core module performs joint timing control on the frequency resonance module, the multimodal EMS electromyography pulse module, and the endogenous microcurrent module according to the preset rhythm mode;

[0009] The frequency resonance module generates high-frequency, low-amplitude micromechanical vibration waves that match the fluid impedance of the scalp soft tissue.

[0010] The multimodal EMS muscle electrical pulse module generates biphasic low-frequency electrical pulses with a penetration depth of 3.5 mm to 6.0 mm in the subcutaneous region.

[0011] The intrinsic microcurrent module generates an extremely low threshold bio-simulated current at the microampere level.

[0012] The Neuro-Rhythm intelligent central control core module dynamically modulates electrical signals at the microsecond level according to the physiological threshold of the current rhythmic stage, constructing a spatially layered and temporally alternating synergy between frequency resonance and electrical stimulation.

[0013] Another aspect of the present invention provides a scalp nerve rhythm regulation system, comprising at least a frequency resonance module, a multimodal EMS muscle electrical pulse module, an endogenous microcurrent module, and a Neuro-Rhythm intelligent central control core module.

[0014] The frequency resonance module includes at least a piezoelectric ceramic transducer, a driving circuit, and a vibration output terminal, wherein the resonant frequency of the piezoelectric ceramic transducer is calibrated to 10kHz±50Hz.

[0015] The multimodal EMS muscle electrical pulse module includes at least an EMS signal generator, a high-voltage pulse drive circuit, and a multi-electrode array;

[0016] The endogenous microcurrent module includes at least a microcurrent signal generator, a precision current control circuit, and a microelectrode array.

[0017] The Neuro-Rhythm intelligent central control core module integrates a microcontroller, a multi-channel DAC / PWM signal generator, an impedance real-time feedback circuit, and a non-volatile memory unit.

[0018] The Neuro-Rhythm intelligent central control core module performs joint timing control on the frequency resonance module, the multimodal EMS electromyography module, and the endogenous microcurrent module.

[0019] In some embodiments, the vibration output terminal of the frequency resonance module outputs high-frequency, low-amplitude micromechanical vibration waves, with longitudinal wave energy penetrating to a dermal layer depth of 1.5mm to 2.0mm; the multimodal EMS muscle electrical pulse module outputs biphasic low-frequency electrical pulses, with electric field lines penetrating to a subcutaneous depth of 3.5mm to 6.0mm; and the endogenous microcurrent module outputs a biomimetic current of 50μA to 400μA, targeting an epidermal layer depth of approximately 0.1mm.

[0020] In some embodiments, the resonant frequency of the piezoelectric ceramic transducer is precisely calibrated to 10kHz±50Hz. The driving circuit includes a power amplifier and a filter network, which amplifies and filters the PWM signal output by the Neuro-Rhythm intelligent central control core module to drive the piezoelectric ceramic transducer to work.

[0021] In some embodiments, the EMS signal generator generates a dual-phase low-frequency electrical pulse signal with an adjustable duty cycle, the duty cycle being adjustable from 10% to 100%; the output voltage range of the high-voltage pulse drive circuit is 20V to 80V; and multiple conductive electrodes of the multi-electrode array are arranged around the vibration output terminal.

[0022] In some embodiments, the microcurrent signal generator generates a bio-simulated current signal with an output current range of 50μA to 400μA; the precision current control circuit uses a 16-bit digital-to-analog converter to achieve high-precision current regulation; and the electrode diameter of the microelectrode array is controlled within the range of 0.5mm to 1.5mm.

[0023] In some embodiments, the microcontroller of the intelligent central control core module adopts a 32-bit ARM Cortex-M4 core processor; the multi-channel DAC / PWM signal generator includes two PWM output channels and four DAC output channels, the PWM frequency is adjustable from 1kHz to 20kHz, and the DAC resolution reaches 16 bits; the impedance real-time feedback circuit samples the scalp impedance value every 10 milliseconds.

[0024] In some embodiments, the system has three built-in rhythm modes, namely a first rhythm mode, a second rhythm mode, and a third rhythm mode;

[0025] The first rhythmic pattern is a linear gradual closed-loop pattern with a total duration of 10 seconds per cycle. The deceleration phase decreases the duty cycle by 1% every 50 milliseconds, linearly reducing the amplitude intensity from 100% to 1%. The acceleration phase increases the duty cycle by 1% every 50 milliseconds, linearly increasing the amplitude intensity from 1% to 100%.

[0026] The second rhythmic mode is a composite mode of intermittent pulse and gradient cycle, including an intermittent pulse unit and a symmetrical multi-level gradient cycle unit; the intermittent pulse unit executes continuously for 8 rounds, each round including 5 seconds of running at 100% speed and full amplitude intensity and then abruptly pausing for 200 milliseconds; the energy levels of the symmetrical multi-level gradient cycle unit are evenly divided every 3 seconds, with the energy levels being 100%, 80%, 60%, 40%, 20%, 40%, 60%, 80%, and 100% respectively, and after the entire cycle is executed for 2 rounds, it switches back to the intermittent pulse unit;

[0027] The third rhythmic mode is the gentle ripple repair mode, with a total duration of 10 seconds per cycle. In the uniform deceleration phase, the speed decreases precisely and uniformly by 1% every 50 milliseconds, linearly decreasing to 1% in 5 seconds. In the uniform acceleration phase, the speed increases by 1% every 50 milliseconds, linearly returning to 100% in 5 seconds.

[0028] In some embodiments, the frequency resonance module uses a 16-bit or higher high-resolution DAC instead of PWM as the resonance driving signal source; the multimodal EMS muscle electrical pulse module is always turned off throughout the entire cycle of the third rhythm mode, and only the endogenous microcurrent module provides the epidermal bioelectric field repair.

[0029] In some embodiments, the Neuro-Rhythm intelligent central control core module dynamically modulates the electrical signal according to different rhythmic stages to construct a triple collaborative control matrix:

[0030] During the high stimulation period, the duty cycle and output intensity of the EMS pulse current are increased to 70% to 100%;

[0031] During the buffer and gradient transition phases, the electrical stimulation is switched to a microcurrent mode of 50 μA to 400 μA.

[0032] During the ripple phase and the recovery sedation phase, the EMS is turned off and switched to an intrinsic microcurrent of less than 100 μA;

[0033] The Neuro-Rhythm intelligent central control core module simultaneously calculates the target output values ​​of the three energy modules within each 100-microsecond control cycle, and the rise time difference of the three signals is controlled within 10 microseconds.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] 1. By using nonlinear, intermittent pulse and gradient mechanical signals with slope changes to alternately stimulate the scalp, the adaptation cycle of various mechanoreceptors to a single physical signal is successfully broken, extending the physical tolerance period of scalp nerves by more than 3 times, ensuring that the therapeutic effect does not diminish with long-term use.

[0036] 2. The vascular pump effect of the intermittent pulse unit is superimposed with the linear NO release mechanism of the closed-loop mode, realizing a cascade response from transient capillary dilation to sustained microvascular vasodilation, and improving the local microcirculatory hemodynamic response speed of the scalp by 35%;

[0037] 3. It forms a three-dimensional penetration matrix that repairs the epidermal barrier, nourishes the hair follicles in the dermis, and loosens the aponeurosis in the muscle layer. The longitudinal wave releases maximum resonant shear force deep in the dermis, and the EMS pulse current penetrates to a depth of 3.5mm to 6.0mm, reaching the galea aponeurotica. The frequency resonance and microcurrent synchronously activate the Aβ coarse fibers with extremely fast conduction speed, preemptively closing the pain signal gate transmitted by Aδ or C fine fibers, eliminating the discomfort of electric shock and acupuncture.

[0038] 4. Resonance can cause the hardened keratin plugs in the infundibulum to undergo thixotropic liquefaction and be safely peeled off. Combined with microcurrent stimulation, it can increase the efficiency of ceramide synthesis by more than 30%, significantly reduce the transdermal water loss rate, inhibit the abnormal proliferation of Malassezia, and realize the reconstruction of the stability of the scalp microecology and internal environment. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a flowchart of the method for regulating scalp nerve rhythm according to the present invention;

[0041] Figure 2 This is a schematic diagram of the scalp nerve rhythm regulation system architecture of the present invention. Detailed Implementation

[0042] The following will be based on embodiments of the present invention. Figures 1-2 The technical solutions in the embodiments of the present invention will be clearly and completely described together. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0043] The inventors discovered that the beauty and health personal care industry urgently needs a scalp care technology that can proactively break through neural adaptation and establish a dynamic stimulation chain. Through a multimodal synergistic regulation mechanism, it can fully activate the scalp epidermal barrier, dermal microvascular network, deep galea aponeurotica muscles and hair follicle growth environment, and achieve the self-cleaning homeostasis of the scalp microecology.

[0044] Example 1

[0045] The frequency resonance module is the fundamental acoustic and mechanical energy generation unit of the system, comprising a piezoelectric ceramic transducer, a drive circuit, and a vibration output terminal. The resonant frequency of the piezoelectric ceramic transducer is precisely calibrated to 10kHz±50Hz to ensure the frequency stability of the vibration output. The drive circuit includes a power amplifier and a filter network, amplifying and filtering the PWM signal output from the intelligent central control core module before driving the piezoelectric ceramic transducer. The vibration output terminal is rigidly connected to the piezoelectric ceramic transducer, transmitting high-frequency micro-vibrations to the scalp surface through a specific mechanical structure. During operation, the vibration output terminal of the frequency resonance module continuously outputs high-frequency, low-amplitude micromechanical vibration waves. This wavelength is highly matched to the fluid impedance of the scalp soft tissue, inducing high-frequency micron-level displacement in local tissues without causing severe physical tension. This provides high-fidelity mechanical shear force, with longitudinal wave energy precisely penetrating to a depth of 1.5mm to 2.0mm in the dermis, releasing maximum resonant shear force at the outer root sheath of the hair follicle and the dermal papilla. Through the microfluidic effect, it reduces the viscoelastic resistance of the extracellular matrix, promoting tissue fluid fluidization and the diffusion of metabolic waste.

[0046] The multimodal EMS (Electromuscular Muscle Stimulation) module is the deep electric field energy generation unit of the system, comprising an EMS signal generator, a high-voltage pulse drive circuit, and a multi-electrode array. The EMS signal generator produces a biphasic low-frequency electrical pulse signal with an adjustable duty cycle, ranging from 10% to 100%. The high-voltage pulse drive circuit boosts the low-voltage EMS signal before outputting it, with an output voltage range of 20V to 80V. The multi-electrode array includes multiple spaced conductive electrodes positioned around the vibration output end to ensure that the electric field lines can penetrate the scalp to reach the target depth. The electric field lines penetrate to a subcutaneous depth of 3.5mm to 6.0mm. Utilizing the charge balance characteristics of the biphasic pulses to avoid polarization accumulation, a deep electric field loop reaching the subcutaneous muscle layer is formed. Through the acoustic aperture effect coupling the high-frequency micro-vibration of the frequency resonance module, slight cavitation and disturbance are generated in the scalp stratum corneum bilayer, instantaneously reducing skin impedance by 40% to 60%, strongly activating motor neurons, and significantly increasing the transdermal penetration rate of ionizing active ingredients.

[0047] The endogenous microcurrent module is the epidermal bioelectric repair unit of the system, comprising a microcurrent signal generator, a precision current control circuit, and a microelectrode array. The microcurrent signal generator produces a microampere-level bio-simulated current signal, with an output current range of 50 μA to 400 μA. The precision current control circuit uses a 16-bit digital-to-analog converter to achieve high-precision current regulation with a step accuracy of 1 μA. The microelectrode array consists of multiple tiny conductive electrodes with diameters controlled within the range of 0.5 mm to 1.5 mm, ensuring that the electric field can precisely act on the target area of ​​the epidermal layer. The endogenous microcurrent module outputs a microampere-level extremely low threshold bio-simulated current, mimicking the natural physiological electric field of the human body. This extremely low threshold current targets keratinocytes at a depth of approximately 0.1 mm in the epidermis, guiding calcium ion influx through an electric field gradient, driving changes in mitochondrial transmembrane potential, releasing cell-enabling factors, and catalyzing barrier closure at the molecular level. Among them, the microampere level can be 50μA–400μA, the extremely low threshold can be 0.5μA–20μA, and other range values ​​can be adaptively selected in other implementation scenarios.

[0048] The Neuro-Rhythm intelligent central control core module integrates a microcontroller, a multi-channel DAC / PWM signal generator, a real-time impedance feedback circuit, and a non-volatile memory unit. The microcontroller uses a 32-bit ARM Cortex-M4 core processor with a main frequency of 168MHz, providing powerful real-time control capabilities. The multi-channel DAC / PWM signal generator includes two independent high-precision PWM output channels and four DAC output channels, with an adjustable PWM frequency range of 1kHz to 20kHz and a DAC resolution of 16 bits. The real-time impedance feedback circuit includes an impedance measurement front-end and an analog-to-digital converter, sampling scalp impedance values ​​every 10 milliseconds with a measurement accuracy of 0.1kΩ. The non-volatile memory unit uses a flash memory chip with a serial peripheral interface, with a storage capacity of no less than 4MB, used to store control parameters for various modes and user usage records. The intelligent central control core module is responsible for receiving user commands or biofeedback signals and performing joint timing control on the frequency resonance module, multimodal EMS electromyography pulse module, and endogenous microcurrent module. The underlying firmware is embedded with fully automatic nonlinear loop logic for the first rhythm mode, the second rhythm mode, and the third rhythm mode, supporting hardware-level dynamic coordination such as 10-second dual-segment seamless closed loop in a single cycle, 200ms instantaneous power-off pause, and 50ms step-by-step 1% precision modulation.

[0049] It should be noted that this invention also provides three rhythmic modes (pre-rhythmic mode 1, pre-rhythmic mode 2, and pre-rhythmic mode 3) of the basic constant energy level as pre-reference settings; wherein:

[0050] Pre-motion mode 1 is the low-energy sensitive setting, Steady Light. The frequency resonance module outputs a constant amplitude of 30%. At this setting, the PWM duty cycle of the drive circuit is fixed at 30%, and the piezoelectric ceramic transducer generates micro-vibrations of corresponding amplitude. The waveform is a continuous static sine wave with no amplitude fluctuations and extremely low energy density. In this setting, the system preferentially activates the capillary network in the papillary layer beneath the epidermis to establish a neural sensory baseline. This setting is recommended for first-time users or those with a sensitive scalp for initial adaptation training.

[0051] Pre-motion rhythm mode 2 is a medium-energy soothing setting. The frequency resonance module outputs a constant amplitude of 60%, and the PWM duty cycle of the drive circuit is fixed at 60%. The waveform is a continuous static sine wave with moderate peak energy, focusing on uniform energy coverage. This setting allows energy to penetrate deeper, recruiting microarteries and venules in the middle dermis, promoting continuous improvement in blood microcirculation. After adapting to pre-motion rhythm mode 1, users can switch to this setting for daily scalp care.

[0052] Pre-motion mode 3 is a high-energy, deep-layer Steady Intense mode. The frequency resonance module outputs 100% full-scale constant amplitude intensity, the PWM duty cycle of the drive circuit is fixed at 100%, and the waveform is a continuous static sine wave, maintaining the highest energy level physical output and possessing strong penetration. This mode's shear force reaches the deep dermal plexus, achieving imperceptible and smooth dilation of the entire vascular layer. In pre-motion modes 1 through 3, the multimodal EMS electromyography (EMS) module and the endogenous microcurrent module can be independently turned on or off according to user selection. Users can set the EMS intensity to off, low, medium, or high via the control panel. The endogenous microcurrent module also supports independent intensity adjustment.

[0053] Understandably, this invention provides three novel rhythmic architectures at the method level that can recalibrate neural perception thresholds and dynamically break neural adaptations. These are the first rhythmic mode, the second rhythmic mode, and the third rhythmic mode. The three modes are designed for different scalp health conditions and usage scenarios. Through a precise digital rhythmic control algorithm, they achieve deep activation and synergistic repair of multi-layered scalp tissues.

[0054] The first rhythmic mode is a linear, gradual closed-loop mode. The system stabilizes at the core resonant frequency and achieves a seamless dual-segment closed-loop cycle by precisely changing the PWM duty cycle of the control module, with a total cycle duration of 10 seconds. In the deceleration phase, the amplitude intensity is linearly reduced from 100% to 1% at a rate of 1% decrease in duty cycle every 50 milliseconds. Specifically, a timer inside the microcontroller generates an interrupt every 50 milliseconds, and the PWM duty cycle is decremented by 1% in the interrupt service routine, executing 100 times consecutively until the duty cycle reaches 1%. In the acceleration phase, the amplitude intensity is linearly increased from 1% to 100% at a rate of 1% increase in duty cycle every 50 milliseconds. A timer generates an interrupt every 50 milliseconds, and the PWM duty cycle is increased by 1% in the interrupt service routine, executing 100 times consecutively until the duty cycle returns to 100%. The waveform is a high-precision linear triangular wave, with no sudden starts or stops or step-like abrupt changes throughout, ensuring a continuous and smooth dynamic flow of resonant energy within the scalp.

[0055] During the 100% full-output period of the first rhythmic mode, the Neuro-Rhythm intelligent central control core module synchronously sends commands to the multimodal EMS muscle electrical pulse module, increasing the EMS pulse duty cycle to 70%. The high-voltage pulse drive circuit outputs an electrical pulse signal with a 70% duty cycle, forming a strong acoustic-electric synergy with the frequency vibration. At this time, the acoustic aperture effect induced by frequency resonance in the stratum corneum bilayer causes the skin's electrical impedance to drop instantaneously by 40% to 60%, allowing the current to penetrate into the deep dermis and arrector pili muscles with lower energy consumption, powerfully activating motor neurons. During the 1% minimum amplitude period of the first rhythmic mode, the multimodal EMS muscle electrical pulse module automatically switches to the working mode of the endogenous microcurrent module, outputting a microcurrent of 50μA to 100μA, forming a phase difference complement with the vibration, providing dynamic buffering for the scalp nerve fibers.

[0056] In the first rhythmic mode, the frequency resonance module uses a piezoelectric ceramic transducer as the vibration source, and its resonant frequency is precisely calibrated to 10kHz±50Hz. The Neuro-Rhythm intelligent central control core module achieves precise linear control of the amplitude through PWM duty cycle modulation, with a minimum step accuracy of 1% duty cycle change within a 50-millisecond time window. The frequency vibration maintains continuous output throughout the entire cycle, with no power interruption moments. The amplitude change curve is a strictly linear function with no step abrupt changes or second-order or higher nonlinear terms. The waveform envelope is a perfect isosceles triangle, and the acceleration and deceleration segments are strictly symmetrical about the midpoint of the cycle.

[0057] Taking a user's daily scalp care using the First Rhythm mode as an example, the control process is as follows: The user selects the First Rhythm mode through the control panel and sets the duration of a single treatment to 15 minutes. After loading the preset parameters, the Neuro-Rhythm intelligent central control core module starts the timer, and the microcontroller refreshes the PWM duty cycle and DAC output value at a period of 100 microseconds. In the first 5 seconds, the PWM duty cycle decreases uniformly from its initial value to 1%, and the vibration intensity correspondingly decreases smoothly from 100% to 1%. During the 1% low intensity period, the EMS module switches to microcurrent mode, outputting an 80μA repair current. In the next 5 seconds, the PWM duty cycle increases uniformly from 1% to 100%, and the vibration intensity correspondingly increases smoothly from 1% to 100%. During the 100% high intensity period, the EMS module outputs a deep electrical pulse with a 70% duty cycle. This cycle repeats until the 15-minute treatment time ends. Throughout the physiotherapy process, the real-time impedance feedback circuit continuously monitors changes in scalp impedance. When an impedance drop of more than 30% is detected, the output voltage of the EMS module is automatically increased to compensate for the loss of penetration depth.

[0058] The second rhythmic mode is a composite mode of intermittent pulses and gradient cycles, with the system operating strictly according to a two-stage alternating control logic. The first stage is the intermittent pulse unit, which creates an instantaneous fluid pressure difference through sudden energy cut-off pauses, continuously and precisely repeating this process for 8 rounds. Each round includes 5 seconds of operation at 100% speed and full amplitude intensity, followed by an abrupt 200 millisecond pause. The core of this stage lies in utilizing the fluid inertia effect: within the 200 milliseconds of the sudden cessation of 100% vibration, the tissue fluid within the hair follicle lumen continues to flow due to inertia, generating a high-intensity transient fluid shear force between the hair follicle opening and the sebaceous gland duct wall, with a peak value far exceeding that of continuous uniform vibration.

[0059] The second stage is a symmetrical multi-level gradient cyclic unit that performs rhythmic, step-like output switching. Each energy level is evenly divided every 3 seconds, and the entire cycle executes twice. The energy levels are sequentially 100% every 3 seconds, 80% every 3 seconds, 60% every 3 seconds, 40% every 3 seconds, 20% every 3 seconds, 40% every 3 seconds, 60% every 3 seconds, 80% every 3 seconds, and 100% every 3 seconds. After completing two rounds of symmetrical gradient switching, it switches back to the first stage, and the cycle repeats infinitely.

[0060] In the second rhythm mode, the Neuro-Rhythm intelligent central control core module adopts a dual-timer collaborative architecture. Timer_A is responsible for the periodic timing of the high-intensity intermittent pulses in the first stage, outputting control signals in a 5.2-second cycle. For the first 5.0 seconds, the PWM outputs a drive signal with a 100% duty cycle, followed by a 0% duty cycle output for 200 milliseconds. This cycle is repeated for 8 complete cycles, totaling 41.6 seconds. Timer_B is responsible for the step-switching timing of the gradient cycle in the second stage, outputting nine energy levels sequentially: 100%, 80%, 60%, 40%, 20%, 40%, 60%, 80%, and 100%, with each level lasting 3 seconds, for a total of 27 seconds. After Timer_B completes two cycles, a stage switching signal is triggered, and the system switches back to Timer_A to execute the first stage, thus alternating in this cycle.

[0061] In the electroacoustic coordination matrix of the second rhythmic mode, within the 100% vibration range of the first stage, the multimodal EMS muscle electro-pulse module synchronously outputs deep electrical pulses with a peak duty cycle of 100%. The high-voltage pulse drive circuit outputs maximum power, directly acting on the galea aponeurotica and deep muscle tissue. In the high-energy range of 100% and 80% in the second stage, the EMS module outputs electrical pulses with a 70% duty cycle, targeting and releasing the galea aponeurotica to restore scalp tissue elasticity. Within the mid-energy range of 60% and 40%, the EMS module switches to the endogenous microcurrent module mode, outputting microcurrents from 50μA to 400μA to drive hair papilla cell metabolism and promote nutrient supply to hair follicles. Within the 20% buffer zone, the EMS module is completely shut down, retaining only the basic activation of resonance, providing a brief recovery period for scalp neurons.

[0062] Taking a user performing deep cleaning care using the Second Rhythm mode as an example, the control process is as follows:

[0063] The user selects the second rhythm mode via the control panel. The system first enters the first stage of a high-intensity intermittent pulse sequence. After Timer_A starts, the PWM duty cycle is fixed at 100% for the first 5 seconds. The piezoelectric ceramic transducer outputs high-frequency vibration at maximum amplitude, while the EMS module outputs biphase electrical pulses with a 100% duty cycle. At the end of the 5th second, the PWM duty cycle instantly drops to 0%, and the high-frequency micro-vibration abruptly stops. However, the tissue fluid in the hair follicle continues to flow due to inertia, generating transient fluid shear force at the hair follicle opening. After 200 milliseconds, the PWM duty cycle returns to 100%, and the high-frequency micro-vibration restarts. Timer_A executes this logic 8 times, for a total of 41.6 seconds, before switching to the second stage.

[0064] After the second phase begins, Timer_B switches between nine energy levels sequentially in 3-second cycles. During the 3 seconds of maintaining the 100% energy level, the EMS module outputs electrical pulses with a 70% duty cycle, primarily acting on the superficial scalp tissue. At the 80%, 60%, and 40% energy levels, the EMS module gradually reduces its output or switches to microcurrent mode, allowing energy to gradually penetrate into the deep dermis. During the extremely low 20% energy level, the EMS module is completely shut down, retaining only the basic activation of resonance as a neural buffer. After Timer_B completes two cycles (54 seconds), the system switches back to Timer_A to execute the first phase, and this cycle repeats indefinitely. Throughout the treatment, the impedance feedback circuit continuously monitors the process. When an impedance drop exceeds 50%, it is determined that the acoustic aperture effect is fully activated, and an additional 10% microcurrent output is added in this range to further enhance the transdermal penetration effect.

[0065] The third rhythm mode is the Micro-Ripple Repair Mode, specially designed for people with highly sensitive scalps. Its core features are an extremely low starting point and linear continuity. The maximum amplitude intensity is achieved through a two-stage closed-loop cycle using hardware-level duty cycle modulation, with a total cycle duration of 10 seconds. The constant-speed deceleration phase starts at 100% full amplitude intensity, precisely and uniformly decreasing by 1% every 50 milliseconds, linearly decreasing to the 1% micro-perceptible critical point in 5 seconds. After reaching the minimum amplitude of 1% in the constant-speed acceleration phase, the slope immediately increases by 1% every 50 milliseconds, linearly returning to 100% full intensity in 5 seconds. The waveform characteristics are a high-precision symmetrical triangular envelope wave, eliminating all sudden start and stop surges, with zero step hard angles throughout.

[0066] In the third rhythmic mode, the frequency resonance module uses a high-resolution DAC (16-bit or higher) instead of PWM as the resonance drive signal source to eliminate the impact of PWM quantization noise on waveform smoothness at low duty cycles. The DAC output voltage ranges from 0V to 3.3V, and after amplitude amplification by an operational amplifier, it drives the piezoelectric ceramic transducer. The amplitude change slope is designed to change by 1% every 50 milliseconds, corresponding to an angular velocity of 0.36 degrees per second, which is far below the activation threshold slope of C-fiber pain receptors. In this way, the mechanosensitive channels of MRGs are selectively activated without triggering pain signals.

[0067] In the third rhythmic mode, the multimodal EMS muscle electrical pulse module remains switched off throughout the entire cycle, with only the endogenous microcurrent module providing the epidermal bioelectric field repair. The microcurrent amplitude undergoes in-phase linear modulation with amplitude changes, decreasing to 50μA to 80μA at the 1% trough and rising to 200μA to 400μA at the 100% peak, ensuring complete temporal synchronization between the two energy sources. The Neuro-Rhythm intelligent central control core module simultaneously calculates the target output value of the microcurrent module within each 100-microsecond control cycle, refreshing the DAC output value with the same 100-microsecond cycle, and controlling the rise time difference of the three signals to within 10 microseconds.

[0068] Taking a user with highly sensitive scalp using the Third Rhythm mode for pre-sleep relaxation care as an example, the control process is as follows:

[0069] Users select the third rhythm mode via the control panel, and the system loads the dedicated parameters for WBR mode. During the first 5 seconds of the deceleration phase, the DAC output voltage linearly decreases from 3.3V to 0.033V, corresponding to a decrease in vibration intensity from 100% to 1%. Simultaneously, the microcurrent module reduces the output current from 300μA to 70μA. During the maintenance of the 1% micro-sensing critical point, the microcurrent continuously acts on the epidermis at an extremely low intensity of 70μA, gently repairing the damaged barrier. During the next 5 seconds of the acceleration phase, the DAC output voltage linearly increases from 0.033V to 3.3V, corresponding to an increase in vibration intensity from 1% to 100%. Simultaneously, the microcurrent module increases the output current from 70μA to 300μA.

[0070] It should be noted that this invention is the first to propose a Neuro-Rhythm synergistic model. Through high-frequency resonance and spatiotemporal resonance technology using dual electric fields, it dynamically modulates electrical signals at the microsecond level according to the physiological thresholds of different rhythmic stages, constructing a triple synergistic control matrix. The spatial layered targeting of high-frequency resonance and electrical stimulation in this invention includes three levels: the epidermis is dominated by an endogenous microcurrent module, where microampere-level currents establish a biomimetic electric field gradient in the stratum corneum, guiding calcium ion influx, activating the synthesis of tight junction protein Claudin-1 and filaggrin, and blocking the infiltration of external stimuli. The dermis is dominated by a frequency resonance module, where longitudinal waves generate a microfluidic effect at this depth, releasing maximum resonant shear force, activating dermal papilla cells, and prolonging the hair follicle growth phase. The muscle layer is dominated by a multimodal EMS muscle electrical pulse module, where biphasic electrical pulses form a deep electric field circuit, penetrating to a depth of 3.5mm to 6mm directly to the galea aponeurotica and subcutaneous muscle layer, recruiting α motor neurons, forcibly contracting the galea aponeurotica, and effectively releasing aponeurotic adhesions.

[0071] The three layers of energy form a continuous coverage in space and alternately dominate in the temporal domain, ensuring that all layers of scalp tissue can be effectively stimulated and repaired.

[0072] In practical applications, the system of this invention can be integrated into high-end intelligent scalp therapy equipment. The outer shell of the equipment adopts an ergonomic design, the grip part is provided with anti-slip texture, and the operation panel is equipped with a mode selection button, an intensity adjustment button and a power button.

[0073] The vibration output end and multi-electrode array are located on the head of the device, conforming to the scalp surface during operation. When the user selects the second rhythm mode for deep cleansing of oily scalp, the system first detects scalp impedance through a real-time impedance feedback circuit and automatically adjusts the initial output parameters based on the impedance value. In the first stage, the system executes eight rounds of high-intensity intermittent pulses, each round including 5 seconds of full-power vibration followed by a 200-millisecond pause, using transient fluid shear force to break up solidified sebum accumulated at the hair follicle openings. In the second stage, two rounds of symmetrical gradient cycles are executed, with energy penetrating gradually from high to low to achieve layered cleansing. After the 15-minute treatment, the system automatically enters a 30-second micro-ripple repair stage, outputting 1% to 10% low-intensity vibration combined with a 50μA microcurrent to soothe temporary irritation caused by cleansing. Throughout the treatment, the user can adjust the intensity level in real time via the control panel, and the system dynamically adjusts the output parameters based on the new settings.

[0074] Example 2

[0075] In another application scenario of this invention, the system can be used in an intelligent sleep management device. The device is designed as a headband with a built-in flexible electrode array and a micro-vibration module. When the user selects the third rhythm mode for pre-sleep relaxation, the system first outputs vibration at 100% intensity for 5 seconds, then linearly decreases to 1% at a rate of 1% every 50 milliseconds, maintains the lowest intensity for 5 seconds, and then increases back to 100% at the same rate, repeating this cycle. Simultaneously with the vibration output, the microcurrent module outputs a bio-simulated current of 200μA to 300μA to promote scalp blood circulation and nerve relaxation. After 30 minutes, the system automatically switches to a low-power mode, maintaining only extremely low-intensity vibration to help the user fall asleep. The device's biofeedback module continuously monitors the user's heart rate and respiratory rhythm; when it detects that the user has fallen asleep, it automatically reduces the vibration intensity to the lowest level to prevent sleep disturbance.

[0076] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the 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 its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0077] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A method for regulating scalp nerve rhythm, characterized in that, include: It provides frequency resonance modules, multimodal EMS muscle electrical pulse modules, intrinsic microcurrent modules, and Neuro-Rhythm intelligent central control core modules; The Neuro-Rhythm intelligent central control core module performs joint timing control on the frequency resonance module, the multimodal EMS electromyography pulse module, and the endogenous microcurrent module according to the preset rhythm mode; The frequency resonance module generates mechanical vibration waves that match the fluid impedance of the scalp soft tissue. The multimodal EMS muscle electrical pulse module generates biphasic low-frequency electrical pulses with a penetration depth of 3.5 mm to 6.0 mm in the subcutaneous region. The intrinsic microcurrent module generates an extremely low threshold bio-simulated current at the microampere level. The Neuro-Rhythm intelligent central control core module dynamically modulates electrical signals at the microsecond level according to the physiological threshold of the current rhythmic stage, constructing a spatially layered and temporally alternating synergy between frequency resonance and electrical stimulation.

2. A scalp nerve rhythm regulation system, characterized in that, It includes at least a frequency resonance module, a multimodal EMS muscle electrical pulse module, an endogenous microcurrent module, and a Neuro-Rhythm intelligent central control core module; The frequency resonance module includes at least a piezoelectric ceramic transducer, a driving circuit, and a vibration output terminal, wherein the resonant frequency of the piezoelectric ceramic transducer is calibrated to 10kHz±50Hz. The multimodal EMS muscle electrical pulse module includes at least an EMS signal generator, a high-voltage pulse drive circuit, and a multi-electrode array; The endogenous microcurrent module includes at least a microcurrent signal generator, a precision current control circuit, and a microelectrode array. The Neuro-Rhythm intelligent central control core module integrates a microcontroller, a multi-channel DAC / PWM signal generator, an impedance real-time feedback circuit, and a non-volatile memory unit. The Neuro-Rhythm intelligent central control core module performs joint timing control on the frequency resonance module, the multimodal EMS electromyography module, and the endogenous microcurrent module.

3. The system according to claim 2, characterized in that, The frequency resonance module outputs high-frequency, low-amplitude micromechanical vibration waves at its vibration output end, with longitudinal wave energy penetrating to a dermal layer depth of 1.5mm to 2.0mm; the multimodal EMS muscle electrical pulse module outputs biphasic low-frequency electrical pulses, with electric field lines penetrating to a subcutaneous depth of 3.5mm to 6.0mm; and the endogenous microcurrent module outputs 50μA to 400μA of bio-simulated current, targeting an epidermal layer depth of approximately 0.1mm.

4. The system according to claim 2, characterized in that, The resonant frequency of the piezoelectric ceramic transducer is precisely calibrated to 10kHz±50Hz. The driving circuit includes a power amplifier and a filter network. After amplifying and filtering the PWM signal output by the Neuro-Rhythm intelligent central control core module, it drives the piezoelectric ceramic transducer to work.

5. The system according to claim 2, characterized in that, The EMS signal generator generates a dual-phase low-frequency electrical pulse signal with an adjustable duty cycle, ranging from 10% to 100%; the output voltage range of the high-voltage pulse drive circuit is 20V to 80V; and multiple conductive electrodes of the multi-electrode array are arranged around the vibration output terminal.

6. The system according to claim 2, characterized in that, The microcurrent signal generator produces a bio-simulated current signal with an output current range of 50μA to 400μA; the precision current control circuit uses a 16-bit digital-to-analog converter to achieve high-precision current regulation; the electrode diameter of the microelectrode array is controlled within the range of 0.5mm to 1.5mm.

7. The system according to claim 2, characterized in that, The microcontroller of the intelligent central control core module adopts a 32-bit ARM Cortex-M4 core processor; the multi-channel DAC / PWM signal generator includes two PWM output channels and four DAC output channels, the PWM frequency is adjustable from 1kHz to 20kHz, and the DAC resolution reaches 16 bits; the impedance real-time feedback circuit samples the scalp impedance value every 10 milliseconds.

8. The system according to claim 2, characterized in that, The system has three built-in rhythm modes: the first rhythm mode, the second rhythm mode, and the third rhythm mode. The first rhythmic pattern is a linear gradual closed-loop pattern with a total duration of 10 seconds per cycle. The deceleration phase decreases the duty cycle by 1% every 50 milliseconds, linearly reducing the amplitude intensity from 100% to 1%. The acceleration phase increases the duty cycle by 1% every 50 milliseconds, linearly increasing the amplitude intensity from 1% to 100%. The second rhythmic mode is a composite mode of intermittent pulse and gradient cycle, including an intermittent pulse unit and a symmetrical multi-level gradient cycle unit; the intermittent pulse unit executes continuously for 8 rounds, each round including 5 seconds of running at 100% speed and full amplitude intensity and then abruptly pausing for 200 milliseconds; the energy levels of the symmetrical multi-level gradient cycle unit are evenly divided every 3 seconds, with the energy levels being 100%, 80%, 60%, 40%, 20%, 40%, 60%, 80%, and 100% respectively, and after the entire cycle is executed for 2 rounds, it switches back to the intermittent pulse unit; The third rhythmic mode is the ripple repair mode, with a total duration of 10 seconds per cycle. In the uniform deceleration phase, the speed decreases precisely and uniformly by 1% every 50 milliseconds, taking 5 seconds to linearly decrease to 1%. In the uniform acceleration phase, the speed increases by 1% every 50 milliseconds, taking 5 seconds to linearly return to 100%.

9. The system according to claim 8, characterized in that, The frequency resonance module uses a 16-bit or higher high-resolution DAC instead of PWM as the resonance driving signal source; the multimodal EMS muscle electrical pulse module is always turned off throughout the entire cycle of the third rhythm mode, and only the endogenous microcurrent module provides the epidermal bioelectric field repair.

10. The system according to claim 8, characterized in that, The Neuro-Rhythm intelligent central control core module dynamically modulates the electrical signal according to different rhythmic stages, constructing a triple collaborative control matrix: During the high stimulation period, the duty cycle and output intensity of the EMS pulse current are increased to 70% to 100%; During the buffer and gradient transition phases, the electrical stimulation is switched to a microcurrent mode of 50 μA to 400 μA. During the ripple phase and the recovery sedation phase, the EMS is turned off and switched to an intrinsic microcurrent of less than 100 μA; The Neuro-Rhythm intelligent central control core module simultaneously calculates the target output values ​​of the three energy modules within each 100-microsecond control cycle, and the rise time difference of the three signals is controlled within 10 microseconds.

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