35 results about "Skin impedance" patented technology

The invention discloses an electrical stimulation control method and device based on impedance feedback and a medium, and relates to the technical field of electrical stimulation. According to the scheme, a target electrical stimulation output mode set by a user is collected through a man-machine interaction module, and an initial impedance value of a detected target is detected through an impedance and voltage detection module; the main control module generates an initial output parameter according to the target electrical stimulation output mode and the initial impedance value, and the electrical stimulation module executes electrical stimulation output; the dynamic impedance value of the measured target is continuously monitored in the output process, and when the impedance of the measured target changes, the initial output parameter is adjusted so as to correct the electrical stimulation output. That is, according to the scheme, the impedance change of the measured target is continuously monitored in the electrical stimulation output process, and when the difference between the dynamic impedance value and the initial impedance value is found, the initial output parameter is adjusted to correct the electrical stimulation output so as to adapt to the dynamic change of the human skin impedance and maintain the stability of the current; and the safety and the reliability of electrical stimulation output are ensured.

The application discloses a starfish-imitated tube foot array hydrogel electrode and a preparation method thereof. The bottom of the conductive hydrogel electrode is provided with a starfish-imitated tube foot array. A single starfish-imitated tube foot comprises a stem and a terminal biomimetic sucker. The outer side of the sucker is a circular table structure, and the inner side is a cavity composed of a hemisphere. The integrated tube foot microstructure of the electrode is obtained by laser cutting of the hydrogel. First, the inner cavity structure is cut. Then, the outer side of the biomimetic tube foot shape is cut. Finally, the single biomimetic tube foot is inserted into the block-shaped hydrogel to form an array. The preparation method of the conductive hydrogel electrode comprises the following steps: first, a prepolymer is synthesized; then, the prepolymer, cationic monomers and anionic monomers are polymerized to obtain a hydrogel with anti-swelling and stable and excellent conductive performance. The conductive hydrogel electrode has the self-adhesion and anti-swelling ability when working underwater, can be closely combined with human skin, reduces the electrode-skin impedance, and improves the quality of underwater electromyographic signal collection.

This invention discloses a control method and control system for pulses in a physiotherapy device. The method includes: acquiring detection data collected by the patch during its operation; wherein the detection data includes: electromyography (EMG) data, skin impedance, skin temperature, and pressure distribution; identifying the patch's fit degree based on the skin impedance and pressure distribution; after the fit degree meets the standard, determining the current operating state category of the physiotherapy device based on the EMG data and skin temperature; obtaining electrode current compensation and heating power compensation for the patch based on the operating state category; and controlling the patch to adjust the current pulse and temperature based on the electrode current compensation and heating power compensation. This invention solves the technical problem in the prior art where physiotherapy devices cannot adaptively adjust different pulse controls for output, and can automatically adjust the current pulse and temperature parameters to suit the user when using the physiotherapy device, improving the user experience and ease of use.

The invention relates to the technical field of microneedle transdermal drug delivery, in particular to a puncture depth self-adaptive microneedle system. The microneedle system comprises a microneedle array used for puncturing skin, providing a sampling point for detecting skin impedance at a skin layer touched by a needle tip of the microneedle array, and releasing drugs; the detection unit is connected with the microneedle array and is configured to acquire skin impedance at the sampling point in a short pulse mode and output a control signal when it is judged that the needle tip of the microneedle array penetrates through the cuticle according to the skin impedance; the execution unit is respectively connected with the microneedle array and the detection unit and is configured to receive a control signal from the detection unit to stop the microneedle array from continuously puncturing into the skin after the detection unit judges the penetration, so that the penetration depth of the microneedle can be actively limited based on the electrical characteristic change of the skin in the penetration process of the microneedle; the problem of skin individual difference is effectively solved, and the active recognition capability and the automatic adjustment capability of the real-time penetration state are achieved.

A beauty device using skin impedance measurement and ultrasonic cross-frequency according to an embodiment of the present invention comprises: an electrical stimulator including an electrode, which transmits a current to the skin of a subject in order to measure the skin impedance of the subject and care for the skin condition of the subject analyzed on the basis of the skin impedance of the subject, and an LED, which irradiates the skin of the subject with light while the current is being transmitted to the skin of the subject; and a cross-frequency ultrasonic stimulator that measures the skin impedance of the subject and is provided with an ultrasonic generator that irradiates the skin of the subject with ultrasonic waves of cross-frequency in order to care for the skin condition of the subject analyzed on the basis of the skin impedance of the subject, wherein the beauty device can apply electrical stimulation, optical stimulation, and ultrasonic stimulation to the skin of the subject.

The invention provides an electrical stimulation signal adaptive adjustment method and circuit, and belongs to the technical field of virtual reality interaction. In the first high-frequency range, high-frequency frequency corresponding to the lowest skin impedance in electrode array skin impedance detection is obtained in real time, and the high-frequency frequency is determined as high-frequency reference frequency. An initial low frequency and two first electrodes corresponding to a tactile feedback event are obtained. A first stimulation frequency is determined according to the initial low-frequency frequency and the high-frequency reference frequency, and a second stimulation frequency is determined according to the initial low-frequency frequency and the high-frequency reference frequency. And generating a first stimulation signal according to the first stimulation frequency, and generating a second stimulation signal according to the second stimulation frequency. According to the first stimulation signal and the second stimulation signal, at least two first electrodes in the electrode array are controlled to be conducted, high-frequency double-frequency electric field superposition interference is achieved in the skin deep tissue, and the problem that touch intensities of the same operation are inconsistent in a traditional method is solved.

The present application provides a radio frequency system for automatically regulating output energy by measuring skin impedance. According to the method, a forward voltage and a reverse voltage of radio frequency energy acting on the skin are measured; a control module adjusts the duty cycle of a second PWM control module on the basis of the forward voltage and the reverse voltage; the second PWM control module regulates an output voltage of a main power supply on the basis of the adjusted duty cycle, so as to regulate radio frequency energy outputted by the radio frequency system; and thus, the radio frequency energy acting on the skin can be automatically regulated without manual regulation, thereby greatly improving the radio frequency energy output accuracy of the radio frequency system.

The invention relates to the technical field of medical equipment, in particular to an ear mold 3D printing and electrical stimulation integrated treatment system for migraine, and the system comprises an auricle data collection module which collects the three-dimensional geometric data, auricular point positioning data and skin impedance distribution data of the auricle of a patient; the personalized ear mold generation module constructs a personalized ear mold with a built-in bionic radian electrode channel through a self-adaptive layered 3D printing algorithm, and alignment of the electrode channel and a target auricular point is carried out; the intelligent electrical stimulation regulation and control module is combined with an improved targeted Attention-LSTM model to dynamically adjust the electrical stimulation frequency, the pulse width and the stimulation intensity so as to generate a personalized electrical stimulation scheme; and the execution and safety monitoring module converts the personalized electrical stimulation scheme into a targeted electrical stimulation physical treatment process, and performs dynamic monitoring and adaptive adjustment in the whole treatment process. Therefore, the problems of single auricle data acquisition dimension, obvious personalized ear mold printing and adaptability defects and the like in the prior art are solved.

The application discloses a physical treatment equipment for island high-humidity environment and chronic pain, which comprises a host provided with a protective shell, a composite treatment electrode connected with the host, and a control system built in the host. The composite treatment electrode is provided with an electrically conductive part, a heating part, an impedance monitoring unit and a micro-environment humidity sensor. The control system comprises a cause identification module, a generation module and a treatment output module. The cause identification module is used for collecting and processing the skin impedance data of the impedance monitoring unit and the humidity data of the micro-environment humidity sensor, and identifying the identification cause causing the impedance change as biological sweating or environmental salt mist penetration. The generation module generates a corresponding first adjustment strategy or a second adjustment strategy according to the identification cause. The treatment output module is used for driving the electrically conductive part and the heating part of the composite treatment electrode to execute corresponding electric stimulation and heat therapy output based on the first adjustment strategy or the second adjustment strategy. The application not only has the protective shell for preventing corrosion, but also can adaptively adjust and match the treatment parameters in the island environment.

This invention relates to a skin impedance detection device and method, comprising a detection probe, a mechanical drive unit, a force-sensing closed-loop feedback module, a near-ultraviolet array excitation module, a multi-frequency impedance acquisition module, and a data processing unit. This application can induce physiological stress in the skin through 365nm near-ultraviolet pre-irradiation, utilize a stepper motor in conjunction with a force sensor to achieve a constant 1.5N downward pressure on the electrodes, and employs a four-electrode independent drive and a group-by-group contact mode to eliminate electric field coupling interference. Impedance data is acquired through multi-frequency constant current excitation, and based on a nonlinear closed-loop algorithm using logarithmic, exponential, and square operations, the data is converted into the Skin Barrier Index (SBI) and the Inflammatory Skin Index (ILI), significantly improving detection repeatability and clinical discriminability.

The utility model discloses an electrical stimulation circuit capable of detecting skin impedance, which relates to the field of medical instruments and comprises a control module, a first switch, an electrode and an impedance detection component. Two first switches are connected in series to form a bridge arm, a plurality of bridge arms are connected in parallel to form a switching circuit, one end of the switching circuit is connected with a power supply, and the other end is grounded. And each bridge arm is connected with an electrode. The control module is provided with a first output interface, a second output interface and a first input interface which control the first switches to be turned on and turned off, and each first switch corresponds to one first output interface. The impedance detection assembly comprises a first resistor and a diode, the second output interface is connected with the anode of the diode through the first resistor, and the cathode of the diode is connected between the two first switches of one bridge arm. The first input interface is connected between the first resistor and the diode. Three functions of skin depolarization, skin impedance measurement and electrical stimulation can be realized by adjusting the on-off states of different first switches through the control module.

The invention relates to a skin impedance detection circuit and radio frequency treatment equipment, and the circuit comprises a detection electrode module which is used for making contact with human skin to form a current detection loop; the differential current acquisition circuit is connected in series in the current detection loop and is configured to convert the excitation current flowing through the detection electrode module into a differential voltage signal; the amplifying circuit capable of digitally controlling gain is connected to the output end of the differential current acquisition circuit and is configured to receive the differential voltage signal, switch gain gears according to a digital control signal and output an amplified analog signal; and the main control module is connected to the amplifying circuit capable of digitally controlling the gain, and is configured to collect the amplified analog signal, calculate a skin impedance value by combining the current gain gear and the known excitation parameter, and generate an equipment control instruction according to the skin impedance value. The skin impedance detection circuit can detect impedance in real time and set a safety threshold value, and when the impedance exceeds a normal range, the equipment can immediately pause output or reduce power.

The invention belongs to the technical field of intelligent locks, and particularly relates to a safe intelligent lock unlocking system and method based on the Internet of Things. Fingerprint texture images, a pressure distribution sequence, skin impedance frequency response characteristics and an interface temperature rise curve are synchronously collected in the contact process; and multi-modal fusion judgment is performed in combination with electrical stimulation response analysis and pressure topological evolution behaviors, so that the authenticity of physiological activity and operation habits is effectively identified. According to the method, the biological characteristics of a legal user can be accurately identified, and the defect that the prosthesis lacks real tissue electrochemical response and dynamic pressure behavior can be detected, so that the attack of a false fingerprint mold is fundamentally prevented. The identification capability of the intelligent lock on the identity of a living body is remarkably improved, the attack of a high-simulation prosthesis is effectively resisted, and the overall security of the system is greatly enhanced while the convenient use of a legal user is ensured.

The invention belongs to the technical field of nerve targeted therapy, and discloses a nerve targeted spinule drug penetration integrated therapy method for cervical and lumbar spondylosis, which comprises the following steps: determining a lesion segment through image or electrophysiology positioning, applying a soluble spinule patch with layered design in a target area, and rapidly releasing a surface drug to relieve pain. The inner-layer drug carrier is gradually released to play anti-inflammatory and nerve repairing roles; the surface of the carrier can modify a nerve targeting ligand to improve local concentration. The method can also be combined with a low-frequency or high-frequency electrical stimulation module to enhance drug permeation and neurological function recovery, and matched with a sensor to monitor skin impedance or temperature in real time so as to ensure safety. The invention has the advantages of rapid analgesia, long-acting maintenance and high targeting, avoids the defects of oral administration and injection treatment, and has clinical application values of minimally invasive, individualized and suitable for long-term management.

The invention provides an impedance detection control method and high-frequency skin treatment equipment, the high-frequency skin treatment equipment comprises a high-frequency power supply, a controller connected with the high-frequency power supply and at least one electrode electrically connected with the high-frequency power supply, and the high-frequency power supply is used for applying periodic high-frequency voltage pulses to the electrodes; the impedance detection control method comprises the following steps: acquiring a plurality of output voltage values at a preset acquisition frequency in an output time domain of a high-frequency voltage pulse; performing filtering processing on the plurality of output voltage values to obtain an output voltage filtering value; if the output voltage filtering value is larger than the preset voltage threshold value, the controller detects the impedance of the skin based on the current output voltage value. According to the invention, the sampling action is strictly limited in the output time domain of the high-frequency voltage pulse so as to avoid crosstalk signals in a non-output time period and improve the accuracy of voltage sampling; secondly, filtering processing is carried out on the collected multiple voltage values to suppress instantaneous noise, and finally skin impedance detection is executed when output is stable and effective, so that the accuracy of impedance detection is improved.

The invention discloses a fatigue monitoring system and method for detecting skin impedance change based on a sensor, and the system comprises a plurality of sensor units, each sensor unit comprises an acoustoelectric signal conversion module, an electrode, a piezoelectric crystal, a matching layer, and an acoustic lens; the integrated processing unit is connected with the sensor unit and used for receiving the electric signals from the sensor unit and processing and analyzing the electric signals; the display unit is connected with the integrated processing unit and used for displaying the fatigue state information of the driver; the alarm unit is connected with the integrated processing unit and used for giving an alarm when the fatigue state of the driver is detected; the sensor units are evenly distributed on the section of the steering wheel, each sensor unit is connected with the integrated processing unit through the wire harness, and the wire harness comprises a plurality of strands of wires and is used for transmitting electric signals and a power source. According to the fatigue monitoring system and method for detecting the skin impedance change based on the sensor, the fatigue state of a driver can be accurately monitored, and the road safety is improved.

This invention discloses a targeted transdermal drug delivery system and method combining electroporation and mid-frequency physiotherapy, belonging to the field of pharmaceuticals. It includes a housing support module, an array electroporation module, a mid-frequency vector physiotherapy module, a drug micro-pressure delivery module, a skin impedance acquisition module, a timing coupling control module, a gradient thermal stability adjustment module, and a closed-loop energy supply module. The array electroporation module and the mid-frequency vector physiotherapy module are coaxially arranged and alternately output. The skin impedance acquisition module provides feedback control of the output timing. The gradient thermal stability adjustment module forms a temperature difference isolation zone. The closed-loop energy supply module constitutes an impedance closed-loop adjustment structure. A phase interval of 0.8-6 milliseconds is formed between the outputs of the two modules. The drug micro-pressure delivery module is activated after the electroporation output to utilize the micropore opening window for targeted drug delivery. Beneficial effects: Improved controllability and transdermal efficiency of transdermal drug delivery.

This application discloses a handheld electro-ultrasound therapy device, relating to the field of therapeutic devices, and addressing the problems of low precision, high power consumption, and lack of intelligent feedback and safety protection mechanisms in existing equipment. This application replaces the traditional physical integration method with a collaborative control unit, enabling precise synchronization of electrical stimulation and ultrasound in the time dimension and coordinated modulation in the energy dimension. It utilizes the ultrasonic cavitation effect to reduce skin impedance and increase the penetration depth of electrical stimulation. By real-time acquisition of load impedance, output current, and output voltage, a closed-loop regulation mechanism is formed to automatically match the skin condition of different patients, enhancing the universality of treatment. Real-time monitoring of the ultrasound transducer temperature allows for automatic shutdown or power reduction in case of overheating. Impedance detection can determine the electrode contact status, allowing for timely output cut-off in case of short circuit or open circuit, effectively protecting the safety of both the patient and the device.

The device comprises a first electrode plate, a handle, an electromagnetic shielding cover, a rubber ring with insulating paste, an adhesive layer, a patch, a microneedle and the like. The first electrode plate is connected with a constant-current source of a body composition measuring instrument through a lead; the microneedle penetrates through the adhesive layer and the tail end is connected with a detection device. According to the device, transverse current on the skin surface is blocked through insulating paste, contact resistance is reduced through conductive gel, electromagnetic disturbance is reduced through a shielding cover, and skin resistance and capacitance are completely detected through cooperation of microneedles and a first electrode plate. By means of the measurement condition with the stable contact state, stable and credible skin impedance data can be obtained, the body fluid resistance value of the human body can be obtained by combining body composition measurement and skin resistance removal, and the three advantages of microneedle detection, skin impedance measurement and body composition impedance calculation are achieved.

A method for using and configuring a skin care device using ultrasonic cross-frequencies and electrical stimulation, according to an embodiment of the present invention, may comprise the steps of: a) after a skin care device is operated via a switch in a first mode for applying electrical stimulation and light stimulation to a subject, measuring, by a current and light output head of the skin care device, skin impedance of the subject, the current and light output head being configured to apply electrical stimulation and light stimulation to the subject; b) analyzing, by the current and light output head, the skin condition of the subject on the basis of the skin impedance; c) transmitting, by the current and light output head, current to and irradiating light onto the skin of the subject to apply electrical stimulation and light stimulation; and d) when the skin care device is operated via the switch in a second mode for applying ultrasonic stimulation to the subject, measuring, by an ultrasonic output head, skin impedance of the subject and analyzing the condition of the subject, and then irradiating ultrasound onto the skin of the subject to apply ultrasonic stimulation.

The invention discloses an instrument operation state monitoring method and system adaptive to electric quantity management, and relates to the technical field of intelligent control, and the method comprises the steps: recognizing a working condition mode in a nursing mode through collecting electrical parameters, interaction parameters and skin impedance parameters of a beauty instrument in real time; in combination with the face care portrait, predicting the electric quantity required for completing full face care; whether the demand is met or not is judged according to the residual electric quantity, if not, the priority weight of each sub-region is analyzed and determined based on the facial local state difference, and the optimal nursing strategy under the limited electric quantity is generated. The technical problems that the electric quantity is wasted and nursing is interrupted due to the fact that an existing beauty instrument cannot dynamically adjust the electric quantity output according to the actual use condition and the skin state of a user are solved, and dynamic electric quantity adaptation driven by multi-modal monitoring and nursing portraits is achieved; the technical effects of electric quantity efficient distribution and continuous nursing under the condition of limited electric quantity are achieved.

The present invention relates to a medical device and method for assessing and monitoring epithelial barrier function in a subject using electrical impedance measurements. The method comprises initiating an impedance measurement phase comprising passing an electrical current through the subject's skin to obtain skin impedance values of a target tissue region, said data comprising at least one impedance value measured in the target tissue region at a different tissue layer. Furthermore, an assessment procedure is applied for analyzing epithelial barrier function in the target tissue region based on the impedance value data set measured in the target tissue region at different tissue layers. The procedure evaluates the obtained impedance value data set to provide a result indicative of the status of epithelial barrier function in the subject.

A system for electrical stimulation and recovery of impressed currents during sleep to measure the electrical impedance of intracranial tissue through a single-frequency current stimulation, and decrease the brain impedance through other stimulation parameters, thereby increasing extracellular space and improving glymphatic flow (as indexed dynamically by the concurrent brain impedance measure). A skin-path-correction factor is estimated to allow the subtraction of the electrode-to-skin impedance and thereby estimate the brain impedance compartment separately. Based on computational modeling of electrical conductivity of head tissues, the electrodes are placed at forehead and nuchal sites to optimize current flow through high-conductive skull orifices. Current flow estimation is monitored at the critical orifice of the foramen magnum, and safety limits are monitored and enforced for individual electrodes and for key brain structures.

The invention discloses a self-adaptive control method and a self-adaptive control system for the comfort level of thermal Margari treatment, and belongs to the technical field of automatic control of beauty equipment. On the basis, historical nursing records which have similar skin states and are associated with comfort feedback are retrieved from a historical database, a personalized initial nursing control strategy sequence is generated, skin impedance response signals are monitored in real time, actual skin state change characteristics are calculated, and the actual skin state change characteristics are calculated; and dynamically comparing with the reference feature expected based on the initial strategy, and when the deviation exceeds the preset range, automatically and instantly adjusting the energy parameter or action duration in the subsequent nursing strategy, thereby realizing accurate and self-adaptive control of the nursing process. According to the method, the dependence on the experience of an operator is effectively reduced, and the individuation degree, the stability and the user comfort degree of thermal margari nursing are remarkably improved in a mode of combining historical data and real-time feedback.

The invention discloses a power control system and method for a semiconductor laser therapeutic instrument, and particularly relates to the technical field of laser equipment control. According to the power control system and method, starting, continuing and ending stages are divided based on treatment time, and the strategies of initial penetration, continuous adaptation and gradual power reduction are correspondingly adopted; in the continuous treatment stage, the skin impedance amplitude and tissue temperature biological parameters of a patient are collected, and in combination with personalized dynamic reference values generated by the age, gender and pre-treatment initial parameters of the patient, a state index is calculated and power is dynamically adjusted, so that individual differences and treatment requirements of different patients are met, the curative effect is considered, and excessive treatment is avoided; the problem that in the prior art, power control lacks individualized and dynamic self-adaptive capacity is solved.

According to the invention, accurate measurement is realized through specific electrode arrangement and dual-frequency signal excitation. Firstly, detected skin is cleaned and dried, an excitation electrode slice with the diameter of 5-15 mm is attached, and shielding layer microneedles with the length of 0.5-2 mm are evenly arranged at the position 1-2 mm away from the edge of the excitation electrode slice to serve as detection electrodes. The method comprises the following steps: applying sine excitation signals with f1 and f2 frequencies through a constant current source, determining that a microneedle penetrates into subcutaneous tissue by virtue of phase signal change, respectively acquiring current and voltage data under corresponding frequencies, and calculating to obtain two complex impedance modulus values; a specific algorithm is utilized to deduce total skin resistance Rc and total skin capacitance Cc, and then a skin complex impedance expression at any frequency is obtained. According to the method, the skin impedance can be accurately measured, the internal impedance of the human body can be separated from the total impedance of the body composition by removing the microneedle detection electrode and combining with the body composition detection electric signal, the functions of skin local impedance measurement and body composition correlation detection are achieved, the electrode arrangement is compact, and the measurement process is efficient and accurate.

The utility model relates to the technical field of beauty instruments, in particular to a beauty instrument capable of automatically adjusting output. Comprises: a feature detection module for detecting features of a target object, the features comprising skin impedance; the control module is connected with the feature detection module and is used for acquiring the feature information acquired by the feature detection module and outputting an equipment mode instruction associated with the feature information; the conversion execution module is connected with the control module and used for executing corresponding energy output according to the equipment mode instruction output by the control module; and the power supply module is connected with the control module and the conversion execution module, and the power supply module is controlled by the control module and is used for supplying energy to the control module and the conversion execution module. The beauty instrument capable of automatically adjusting output can perform output of the corresponding mode according to the skin state detection information, the matching degree of the output mode of the beauty instrument and the skin state of a user is improved, and the use effect is improved.

This invention relates to the field of rehabilitation medical equipment technology, and more particularly to a percutaneous auricular vagus nerve stimulation system and method for treating dysphagia after stroke. The system includes: a positioning module, which collects skin impedance distribution information in the concha region and determines the target physical coordinates based on the skin impedance distribution information; a titration module, which, based on the target physical coordinates, obtains the sensory threshold and pain threshold of the subject to electrical stimulation and calculates and generates an individualized intensity benchmark; and a signal module, which, after establishing the individualized intensity benchmark, simultaneously collects the submental muscle group signal and respiratory waveform of the subject and maps them to form a multimodal feature vector. In this invention, the output of the biomimetic frequency-modulated pulse is dynamically synchronized with the patient's spontaneous exhalation phase, effectively improving the physiological coordination of breathing and swallowing during the intervention process and reducing the risk of adverse reactions such as airway aspiration or coughing during electrical stimulation therapy.

The invention is suitable for the technical improvement field of medical beauty equipment, and provides a unipolar radio frequency control method and system capable of outputting constant power and a storage medium, impedance tuning matching is carried out through an adjustable impedance matching network, so that the standing-wave ratio reaches a preset condition; inquiring a calibration table according to the target power, and outputting an initial control parameter to a radio frequency power amplifier; and finally, monitoring incident and reflected power in real time in the treatment process, calculating a reflection coefficient, and dynamically adjusting the output of a power amplifier, so that the actual absorption power of the load is constant at a target value. The system comprises a radio frequency power amplifier module, an adjustable matching network, a reflection monitoring module and a main control module. Through closed-loop control of pre-tuning matching and real-time dynamic power compensation, the problem of output power fluctuation caused by dynamic change of skin impedance is effectively solved, and energy output consistency, treatment effect uniformity and system safety of unipolar radio frequency treatment are remarkably improved.

The invention is suitable for the field of medical beauty and medical instrument technology improvement, and provides a microneedle control method, device and system based on skin impedance-depth fusion, and the method comprises the steps: collecting skin impedance and puncture depth bimodal data in real time, carrying out the data fusion through a dynamic weight distribution algorithm, and obtaining a fusion value representing a puncture state; a pre-stored impedance-propulsion parameter mapping table is dynamically matched based on the real-time impedance, and the rotating speed and the thrust of the microneedle are adjusted in real time according to the fusion value; the puncture process is divided into a contact period, a propelling period and a precise needle stopping period for staged differential control; meanwhile, a layered abnormity early warning mechanism is established, and abnormity early recognition and grading processing are achieved. According to the method, the defects of data splitting, poor static threshold adaptability, extensive control, early warning lag and the like in the prior art are overcome, the puncture depth control precision and the treatment safety are remarkably improved, and the discomfort of a patient is reduced.