AI radio frequency detection and treatment system and method

Abstract

The invention provides an AI radio frequency detection and treatment system, and relates to the field of radio frequency treatment. Comprising a radio frequency signal source, a radio frequency signal processor, a radio frequency bidirectional feedback processing system, a radio frequency cable and an electrode, and is provided with a signal detection circuit, the signal detection circuit is used for detecting subject parameters of a user from feedback electric signals, and the detected subject parameters are fed back to the radio frequency signal processor; the radio frequency signal processor adjusts the output radio frequency power source according to the subject parameters. In a preferable scheme, the signal detection circuit is used for coupling and collecting feedback electric signals from the radio frequency bidirectional feedback processing system and detecting feedback current or voltage parameters so as to obtain parameters of a subject. The signal detection circuit can feed back the treatment effect, it is ensured that radio frequency treatment can reach the expected treatment effect, radio frequency power can be adjusted and output according to parameters of a subject, the precision of radio frequency treatment can be greatly improved, in addition, adjustment parameters can be obtained according to the voltage value or the current value detected in a feedback mode, and the accuracy of radio frequency treatment can be improved. Calculation can be greatly simplified, so that adjustment parameters can be quickly obtained.

Description

Technical Field

[0001] The present invention relates to the field of radio frequency therapy, and in particular to an AI radio frequency detection and treatment system and method. Background Art

[0002] Radiofrequency therapy is achieved by delivering radiofrequency current to the target tissue to achieve the treatment purpose. It has been proven that radiofrequency therapy has significant therapeutic effects in the fields of treating skin pigmentation, eliminating wrinkles, tightening skin, local tissue ablation, etc. However, due to differences in subjects, such as differences in impedance and capacitance of subjects, it is difficult to achieve the best treatment effect for the subjects. In some subjects, the expected treatment effect is not achieved, while in other subjects, damage beyond the treatment expectations is shown. Chinese patent document CN118384420A, a high-power shortwave therapeutic device protection control method and device, records a scheme of setting a temperature sensor for feedback to protect the treated tissue, but in this scheme, it is difficult to solve the technical problem that only the tingling sensation causes discomfort during radiofrequency treatment, or the treatment effect does not meet the expectations. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an AI radio frequency detection and treatment system and method, which can obtain subject parameters based on feedback, and then adjust the radio frequency power according to the subject parameters, thereby ensuring the treatment effect and improving the user's treatment experience.

[0004] To solve the above-mentioned technical problems, the technical solution of the present invention is: an AI radio frequency detection and treatment system, including a radio frequency signal source, a radio frequency signal processor, a radio frequency bidirectional feedback processing system, a radio frequency cable and an electrode, and a signal detection circuit is provided. The signal detection circuit is used to detect the user's subject parameters from the feedback electrical signal, and the detected subject parameters are fed back to the radio frequency signal processor, and the radio frequency signal processor adjusts the output radio frequency power source according to the subject parameters.

[0005] In a preferred embodiment, the signal detection circuit is used to collect feedback electrical signals from the radio frequency bidirectional feedback processing system, detect feedback current or voltage parameters, and obtain subject parameters.

[0006] In a preferred embodiment, a detection electrode is provided on the electrode, and a signal detection circuit is electrically connected to the detection electrode to collect feedback electrical signals from the electrode and detect feedback current or voltage parameters to obtain subject parameters.

[0007] In the preferred solution, the output RF power source value is adjusted using the following formula: P t =P0×K z (1); P tTo adjust the output RF power source, P0 is the maximum value of the initial output RF power source, K z is the adjustment factor based on the subject's impedance parameter.

[0008] In the preferred embodiment, K z Determined by the following formula: K z =Z x / Z0(2); ∣Z x ∣=∣V∣ / ∣I∣(3) Z x is the impedance parameter of the subject, Z0 is the preset impedance parameter, V is the detection voltage value, and I is the detection current value.

[0009] In the preferred solution, the output RF power source value is adjusted using the following formula: P t =P0×K z ×K x (4); K x is an adjustment factor based on the subject's perception.

[0010] In a preferred solution, the signal detection circuit is further provided with a temperature sensor to detect the temperature of the contact position between the user and the electrode, and feed back the temperature parameter to the RF signal processor to limit the upper limit value of the RF power source.

[0011] In a preferred solution, the radio frequency signal source is used to provide a radio frequency signal of a frequency required for radio frequency treatment; The radio frequency signal processor is used to output a radio frequency power source according to the radio frequency signal; The radio frequency bidirectional feedback processing system is used to transmit radio frequency signals and also to pre-process and transmit feedback signals; RF cables and electrodes are used to transmit RF power source.

[0012] A control method using the above-mentioned AI radio frequency detection and treatment system comprises the following steps: S1, radio frequency signal processor transmits to the treatment site through electrodes; S2, signal detection circuit collects feedback signal; S3, detecting the subject parameters of the user according to the feedback signal; S4, the radio frequency signal processor adjusts the power of the output radio frequency power source according to the subject parameters; S5. The RF signal processor outputs the adjusted RF power source.

[0013] In a preferred solution, the feedback signal collected by the signal detection circuit is a voltage value or a current value. In a simplified calculation, the power of the output RF power source can be adjusted accordingly only by comparing the voltage value or the current value.

[0014] The AI ​​radio frequency detection and treatment system and method provided by the present invention can achieve the following beneficial effects by adopting the above scheme: 1. The signal detection circuit provided in the present invention can provide feedback on the treatment effect, ensuring that the radio frequency treatment can achieve the expected treatment effect.

[0015] 2. The present invention can greatly improve the accuracy of radio frequency treatment and further improve the treatment effect by adjusting the output radio frequency power according to the subject parameters.

[0016] 3. The present invention can also obtain adjustment parameters according to the voltage value or current value detected by feedback, which can greatly simplify the calculation, thereby quickly obtaining the adjustment parameters and greatly improving the feedback speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Figure 1 It is a structural block diagram of the present invention.

[0018] Figure 2 Schematic diagram of the circuit of the present invention. DETAILED DESCRIPTION

[0019] Embodiment 1: like Figure 1 , 2 An AI radio frequency detection and treatment system includes a radio frequency signal source, a radio frequency signal processor, a radio frequency bidirectional feedback processing system, a radio frequency cable and an electrode. A signal detection circuit is provided. The signal detection circuit is used to detect the user's subject parameters from the feedback electrical signal. The detected subject parameters are fed back to the radio frequency signal processor. The radio frequency signal processor adjusts the output radio frequency power source according to the subject parameters.

[0020] In a preferred solution, the signal detection circuit is used to couple and collect feedback electrical signals from the RF bidirectional feedback processing system, and detect feedback current or voltage parameters. Preferably, power attenuation parameters, impedance parameters, etc. can also be directly detected to obtain subject parameters. In the actual detection process, the subject parameters include subject impedance parameters and subject capacitive reactance parameters, which will affect the magnitude of the feedback current value or voltage value. When the subject's impedance parameter is larger than the average value of multiple subjects, the feedback current value decreases and the feedback voltage value increases. Conversely, when the subject's impedance parameter is smaller than the average value of multiple subjects, the feedback current value decreases and the feedback voltage value increases. Therefore, in actual calculations, the linear relationship between the current or voltage parameter and the impedance parameter can be directly calculated to obtain an adjustment coefficient for adjusting the output RF power source. The adjustment coefficient is a coefficient that floats up and down with 1 as the center. When the subject's impedance parameter is larger than the average value of multiple subjects, the adjustment coefficient is greater than 1, otherwise the adjustment coefficient is less than 1.

[0021] In a preferred solution, a detection electrode is provided on the electrode, and the detection electrode is preferably in contact with the target tissue of the subject, for example, the detection electrode is in contact with the skin of the subject, and the signal detection circuit is electrically connected to the detection electrode to collect feedback electrical signals from the electrode, detect feedback current or voltage parameters, and obtain subject parameters. In the actual detection process, the subject parameters include subject impedance parameters and subject capacitance parameters, which will affect the magnitude of the feedback current value or voltage value. When the impedance parameter of the subject is larger than the average value of multiple subjects, the feedback current value decreases and the feedback voltage value increases. Conversely, when the impedance parameter of the subject is smaller than the average value of multiple subjects, the feedback current value decreases and the feedback voltage value increases. Therefore, in actual calculations, the linear relationship between the current or voltage parameter and the impedance parameter can be directly calculated to obtain the adjustment coefficient for adjusting the output RF power source. The adjustment coefficient is a coefficient that floats up and down with 1 as the center. When the impedance parameter of the subject is larger than the average value of multiple subjects, the adjustment coefficient is greater than 1, otherwise the adjustment coefficient is less than 1.

[0022] In the preferred solution, the output RF power source value is adjusted using the following formula: P t = P 0× K z (1); in, P t To adjust the output RF power source, P 0 is the maximum value of the initial output RF power source, K zis the adjustment factor based on the subject's impedance parameters. Since the RF power source is a pulsed current, P 0 is the maximum value of the initial output RF power source.

[0023] When working, first determine the initial RF power P 0, which is the maximum power the system can output without adjustment.

[0024] In the preferred embodiment, K z Determined by the following formula: (3); in, Z x is the subject impedance parameter, V is the detection voltage value, I To detect the current value.

[0025] Specifically, the feedback signal can be collected through the signal detection circuit to obtain the detection voltage V and the detection current I, and the impedance parameters of the subject can be calculated using the ratio of voltage to current. Z x .

[0026] (2); in, Z 0 is the preset impedance parameter.

[0027] Specifically, the actual impedance of the subject is calculated by collecting feedback electrical signals from the detection electrodes. Z x .

[0028] The actual impedance Z x With preset standard impedance Z 0 to obtain the adjustment coefficient K z .

[0029] like Z x > Z 0, then K z >1, indicating that the power needs to be increased.

[0030] like Z x < Z 0, then K z <1, indicating the need to reduce power.

[0031] In the preferred solution, the output RF power source value is adjusted using the following formula: P t = P 0× K z × K x (4); in, K x is an adjustment factor based on the subject's perception.

[0032] Furthermore, based on formula (1), an adjustment coefficient based on the subject's feelings is further introduced: K x , the coefficient can be adjusted according to the subjective feelings of the subjects K x Between greater than or less than 1, so that it floats within a reasonable range.

[0033] like K x >1, indicating that the power needs to be increased.

[0034] like K x <1, indicating the need to reduce power The following is a detailed introduction combined with actual cases: In one practicable manner, the initial maximum RF power P 0=100 W , preset impedance parameters Z 0 = 100Ω, subject impedance parameter Z x =120Ω, adjustment factor based on subject's perception K x =0.9.

[0035] Calculation process: S1. Calculation K z :

[0036] S2. Calculation P t : P t = P 0× K z =100W×1.2=120W S3. Consider the patient's feelings and adjustments ( K x =0.9): P t = P 0×K z × K x =100W×1.2×0.9=108W In a preferred solution, the signal detection circuit is further provided with a temperature sensor to detect the temperature of the contact position between the user and the electrode, and feed back the temperature parameter to the RF signal processor to limit the upper limit value of the RF power source.

[0037] In a preferred solution, the radio frequency signal source is used to provide a radio frequency signal of a frequency required for radio frequency treatment; The radio frequency signal processor is used to output a radio frequency power source according to the radio frequency signal; The radio frequency bidirectional feedback processing system is used to transmit radio frequency signals and also to pre-process and transmit feedback signals; RF cables and electrodes are used to transmit RF power source.

[0038] Preferably, the upper limit value of the temperature-adjusted RF power source is determined by the following formula: like T x < T max : K t =1 otherwise:

[0039] in, T max is the maximum allowable temperature value, T x is the actual detected temperature value, K t is the adjustment factor based on temperature.

[0040] Specifically, if the detected temperature T x Lower than or equal to the preset maximum temperature T max , then the adjustment coefficient K t is 1, which means that the temperature has reached the upper limit of the RF power source.

[0041] If the detected temperature T x Exceeded the preset maximum temperature value T max , then the adjustment coefficient K t for , to reduce power output to prevent overheating.

[0042] The upper limit output of the RF power source is determined by the following formula: P t = P 0× K z × K x × K t In one practicable manner, the impedance parameter is preset Z 0 = 100Ω, subject impedance parameter Z x =120Ω, initial maximum RF power P 0=100 W , the maximum temperature allowed T max =40℃, the actual detected temperature value T x =35°C.

[0043] Calculation process: S1, impedance adjustment coefficient K z :

[0044] S2, temperature adjustment coefficient K t : K t =1 (because T x < T max ) S3, upper limit of RF power source P t : P t = P 0× K z × K t × K x =100 W ×1.2×1×0.9=108 W The preferred solution is Figure 2 The circuit diagram includes a control signal module, a working mode switching module, a handle control module, a radio frequency power signal module, a signal detection module, a signal processing conversion module and a radio frequency output module; When working, the control signal module is connected to the working mode switching module through interfaces such as SPI / I²C / UART, and sends control instructions. The working mode switching module switches different working modes of the system (such as standby mode, heating mode, cooling mode, etc.) according to the instructions sent by the control signal module. The control signal module and the handle control module have two-way communication. The handle control module receives the user's input and passes it to the control signal module. According to the control signal received by the working mode switching module, the working state of the RF power signal module is adjusted. The RF signal generated by the RF power signal module is transmitted to the treatment area through the RF output module. The signal detection module detects the effect of the RF signal and feeds back the detection result to the signal processing conversion module. The signal detection module transmits the detected information to the signal processing conversion module for processing, and the signal processing conversion module feeds back the processed information to the control signal module to form a closed-loop control system.

[0045] Among them, the control signal module: The control signal module generates a control signal for controlling the start, stop, working mode switching and other operations of the entire system; it adopts a microcontroller (MCU), such as the STM32 series, Arduino, etc.; preferably, the microcontroller (MCU) adopts STM32F103C8T6, which has rich peripheral interfaces and supports multiple communication protocols such as SPI, I²C, UART, etc. The power management chip adopts TPS767D318 for powering the microcontroller. The control signal module is also provided with a crystal oscillator for generating a clock signal to ensure the stable operation of the microcontroller.

[0046] When implementing, configure the SPI / I²C / UART interface, set parameters such as baud rate, data bits, stop bits, and write a program to generate control signals based on user input or system status, such as selecting an operating mode through buttons or a touch screen.

[0047] Working mode switching module: The working mode switching module includes a relay, a switch matrix (such as 74HC4067) and a GPIO interface (general purpose input and output port); receives a signal from the control signal module and controls the working state of the RF power signal module; Specifically, the relay is used to switch different circuit paths or turn the power on and off; the switch matrix uses 74HC4067 to select different signal channels; and the GPIO interface is used to receive command signals from the control signal module.

[0048] Handle control module: The handle control module is used to provide a user interface, allowing the user to adjust settings such as power, time, etc.

[0049] Among them, the handle control module includes a touch button IC (such as ADS7846), an encoder, and a display screen (such as LCD 1602).

[0050] During implementation, the control signal module communicates with the control signal module to transmit the user's input information to the control signal module.

[0051] RF power signal module: The radio frequency power signal module is used to generate radio frequency power signals, which can also be used for treatment or other purposes.

[0052] The RF power signal module includes an RF power amplifier (such as LDMOS FETs or GaAs MMICs) and an RF oscillator (such as Si5351).

[0053] The RF power signal module receives a control signal from the working mode switching module and outputs a RF signal to the RF output module.

[0054] Signal detection module: The signal detection module detects the actual effect of the RF signal, such as voltage, current, etc., for feedback control.

[0055] The signal detection module includes a voltage transformer (PT), a current transformer (CT), and an ADC (analog-to-digital converter, such as MCP3008).

[0056] The signal detection module detects the radio frequency signal and transmits the detection result to the signal processing conversion module via an analog or digital signal.

[0057] Signal processing conversion module: The signal processing and conversion module is used to process and convert the signal transmitted by the signal detection module to realize intelligent monitoring of data.

[0058] The signal processing conversion module includes a microcontroller (MCU) and a DSP (digital signal processor) such as TITMS320F28335.

[0059] The signal processing conversion module receives data from the signal detection module, and after processing, transmits the processing result to the control signal module to realize closed-loop control.

[0060] RF output module: The radio frequency output module is used to transmit the radio frequency signal generated by the radio frequency power signal module to the treatment site.

[0061] The RF output module includes a RF coaxial electrode and a connector (such as SMA / SMB).

[0062] Among them, the radio frequency output module is directly connected to the radio frequency power signal module to transmit the signal to the treatment area.

[0063] Embodiment 2: like Figure 1 A control method using the above-mentioned AI radio frequency detection and treatment system comprises the following steps: S1, radio frequency signal processor transmits to the treatment site through electrodes; S2, signal detection circuit collects feedback signal; S3, detecting the subject parameters of the user according to the feedback signal; S4, the radio frequency signal processor adjusts the power of the output radio frequency power source according to the subject parameters; S5. The RF signal processor outputs the adjusted RF power source.

[0064] In the preferred scheme, the feedback signal collected by the signal detection circuit is a voltage value or a current value. In the simplified calculation, the power of the output RF power source can be adjusted accordingly only by comparing the voltage value or the current value. Since the measured voltage value or the current value is linearly corresponding to the treatment effect of the subject. That is, when the impedance of the subject is larger than the preset value, the detected voltage value is larger, and the current value is smaller, and the corresponding adjustment of the power of the output RF power source is also larger, otherwise the power of the output RF power source is smaller. Based on this principle, the present invention can adopt a simplified calculation method to correspond the voltage value with the impedance parameter, thereby greatly improving the calculation speed, improving the feedback speed, and thus greatly improving the user experience. The following is a comparison table of the traditional treatment effect and the treatment effect after adopting the present invention. 24 cases are randomly selected and the names are hidden.

[0065] Table 1 is a comparison of the effects of facial wrinkle or freckle removal treatments

[0066] Table 2 shows the comparison of radiofrequency treatment effects on the body

[0067] According to the above comparison, the solution of the present invention can greatly improve the user experience and treatment effect of radio frequency treatment.

[0068] The above-mentioned embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The embodiments and features in the embodiments of the present application can be arbitrarily combined with each other without conflict. The protection scope of the present invention shall be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. An AI radio frequency detection and treatment system, comprising a radio frequency signal source, a radio frequency signal processor, a radio frequency bidirectional feedback processing system, a radio frequency cable and electrodes, characterized in that: A signal detection circuit is also provided, which is used to detect the user's subject parameters from the feedback electrical signal. The detected subject parameters are fed back to the radio frequency signal processor, and the radio frequency signal processor adjusts the output radio frequency power source according to the subject parameters.

2. The AI ​​radio frequency detection and treatment system according to claim 1 is characterized in that: The signal detection circuit is used to collect feedback electrical signals from the radio frequency bidirectional feedback processing system coupling, detect feedback current or voltage parameters, and obtain subject parameters.

3. The AI ​​radio frequency detection and treatment system according to claim 1 is characterized in that: The electrode is provided with a detection electrode, and the signal detection circuit is electrically connected to the detection electrode to collect feedback electrical signals from the electrode and detect feedback current or voltage parameters to obtain subject parameters.

4. The AI ​​radio frequency detection and treatment system according to any one of claims 1 to 3, characterized in that: The output RF power source value is adjusted using the following formula: P t =P0×K z (1); P t To adjust the output RF power source, P0 is the maximum value of the initial output RF power source, K z is the adjustment factor based on the subject's impedance parameters.

5. The AI ​​radio frequency detection and treatment system according to claim 4 is characterized in that K z Determined by the following formula: K z =Z x / Z0(2); ∣Z x ∣=∣V∣ / ∣I∣(3); Z x is the impedance parameter of the subject, Z0 is the preset impedance parameter, V is the detection voltage value, and I is the detection current value.

6. The AI ​​radio frequency detection and treatment system according to claim 4 or 5, characterized in that: The output RF power source value is adjusted using the following formula: P t =P0×K z ×K x (4); K x is an adjustment factor based on the subject's perception.

7. The AI ​​radio frequency detection and treatment system according to claim 1 is characterized in that: The signal detection circuit is also provided with a temperature sensor to detect the temperature of the contact position between the user and the electrode, and feed back the temperature parameter to the radio frequency signal processor to limit the upper limit value of the radio frequency power source.

8. The AI ​​radio frequency detection and treatment system according to claim 1 is characterized in that: The radio frequency signal source is used to provide a radio frequency signal of a frequency required for radio frequency treatment; The radio frequency signal processor is used to output a radio frequency power source according to the radio frequency signal; The radio frequency bidirectional feedback processing system is used to transmit radio frequency signals and also to pre-process and transmit feedback signals; RF cables and electrodes are used to transmit RF power source.

9. A control method using the AI ​​radio frequency detection and treatment system according to any one of claims 1 to 8, characterized in that The following steps are involved: S1, radio frequency signal processor transmits to the treatment site through electrodes; S2, signal detection circuit collects feedback signal; S3, detecting the subject parameters of the user according to the feedback signal; S4, the radio frequency signal processor adjusts the power of the output radio frequency power source according to the subject parameters; S5. The RF signal processor outputs the adjusted RF power source.

10. The control method of the AI ​​radio frequency detection and treatment system according to claim 9 is characterized by: The feedback signal collected by the signal detection circuit is a voltage value or a current value. In a simplified calculation, the power of the output RF power source can be adjusted accordingly only by comparing the voltage value or the current value.

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