Intelligent temperature-adjustable hot melt eye bag removal instrument

Abstract

The utility model discloses a kind of hot melt eye pouch instruments of intelligent temperature adjustment, including hot melt eye pouch instrument body, the hot melt eye pouch instrument body includes treatment mechanism and radio frequency signal generator built-in in hot melt eye pouch instrument body, the treatment mechanism includes electrode, the radio frequency signal generator is connected with radio frequency power amplifier, radio frequency power amplifier is connected with impedance matching network, impedance matching network is connected with electrode, impedance matching network is connected with impedance detection circuit, impedance detection circuit is connected with MCU controller.The utility model is matched with impedance matching network, impedance detection circuit and MCU controller, can detect impedance matching degree in advance before radio frequency energy transmission is given electrode, and according to matching degree, matching impedance is carried out again, is transmitted to electrode and is treated, effectively reduce the reflection due to impedance mismatching, lead to the condition that cannot be effectively heated, improve the stability of hot melt eye pouch instrument body intelligent temperature adjustment.

Description

Technical Field

[0001] This utility model relates to the technical field of hot melt eye bag removal devices, and in particular to a hot melt eye bag removal device with intelligent temperature adjustment. Background Technology

[0002] With the development of technology, radio frequency (RF) technology has gradually been applied to the field of eye bag removal. RF is a high-frequency electromagnetic wave that can penetrate the dermis and subcutaneous tissue to reach the fat layer, pushing heat energy into the deep layers of the skin. It liquefies fat by heating the fat layer or tightens the dermis by heating the dermis, promoting the regeneration and reconstruction of deep skin tissue. It is commonly used for weight loss, eye bag removal, treatment of underarm odor, skin lifting and tightening, wrinkle removal, and other skin rejuvenation applications. Existing thermotherapy eye bag removal devices generally involve holding a treatment handle and using the treatment head to remove eye bags. Although RF technology can achieve the effect of removing eye bags, this type of device can only remove eye bags via RF. If the RF frequency is insufficient or the temperature is too high, the removal effect will be affected. Furthermore, this type of device can only remove eye bags on one side at a time, making the treatment relatively slow.

[0003] Existing designs have made improvements in temperature control to address the aforementioned shortcomings. For example, document CN209827191U discloses a thermoplastic eye bag removal device with intelligent temperature control. This device provides a thermoplastic eye bag removal device with intelligent temperature control and a novel structure. This device is easy to use, and can treat both eye bags simultaneously through a sliding component and two treatment components, greatly accelerating the treatment speed. By setting a temperature sensor, the temperature of the treatment area can be collected, and the radiofrequency frequency can be automatically controlled based on the collected temperature, reducing problems such as damage caused by excessive temperature. During use, the treatment head removes the eye bags, and the massage head massages the eyelids. This not only accelerates the treatment speed without affecting the radiofrequency treatment effect, but also reduces problems such as eyelid damage caused by poor radiofrequency temperature.

[0004] The aforementioned patent discloses a thermoplastic eye bag removal device with intelligent temperature control, which achieves automatic temperature adjustment by automatically controlling the radio frequency. However, it still has the following shortcomings during use: different tissues (skin, fat, muscle) have large differences in electrical impedance (e.g., fat has high impedance, muscle has low impedance). During the transmission of radio frequency energy, reflection will occur due to impedance mismatch, causing some energy to be reflected back to the radio frequency generator, reducing the effective heating power and thus affecting the stability of intelligent temperature control. In order to achieve tissue impedance matching, this application proposes a thermoplastic eye bag removal device with intelligent temperature control to improve upon the aforementioned patent. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an intelligent temperature-adjustable thermoplastic eye bag removal device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A smart temperature-adjustable thermoplastic eye bag removal device includes a thermoplastic eye bag removal device body. The thermoplastic eye bag removal device body includes a treatment mechanism and a radio frequency signal generator built into the thermoplastic eye bag removal device body. The treatment mechanism includes electrodes. The radio frequency signal generator is connected to a radio frequency power amplifier. The radio frequency power amplifier is connected to an impedance matching network. The impedance matching network is connected to the electrodes. The impedance matching network is connected to an impedance detection circuit. The impedance detection circuit is connected to an MCU controller. The MCU controller is connected to the impedance matching network.

[0008] Preferably, the impedance detection circuit includes a directional coupler and a detection circuit. The directional coupler is connected between the impedance matching network and the electrode. The impedance matching network is used to convert the impedance output by the RF power amplifier into the tissue load impedance, thereby maximizing the energy transfer efficiency.

[0009] Preferably, the directional coupler includes resistors R1, R2, R3, and R4, which are connected in series to form a bridge. One end of capacitor C3 is electrically connected to pin 1 of the bridge, one end of capacitor C4 is electrically connected to pin 4 of the bridge, pin 4 of the bridge is grounded, pin 2 of the bridge is electrically connected to pin 1 of operational amplifier U1, and pin 3 of the bridge is electrically connected to pin 2 of operational amplifier U1.

[0010] Preferably, the impedance matching network includes capacitors C1 and C2, which are connected in parallel. One end of capacitor C1 and one end of capacitor C2 are electrically connected to one end of the same inductor L1. The other end of inductor L1 is electrically connected to the other ends of capacitors C3 and C4. The other end of inductor L1 is grounded. One end of capacitor C1 and one end of capacitor C2 are grounded. The other ends of capacitors C1 and C2 are both electrically connected to the output terminal of the RF power amplifier.

[0011] Preferably, the detection circuit includes a comparator U2. Pin 1 of the comparator U2 is electrically connected to one end of resistor R5, one end of resistor R8, and one end of capacitor C6. The other end of resistor R5 is grounded. Pin 2 of the comparator U2 is electrically connected to one end of resistor R6. Pin 4 of the comparator U2 is electrically connected to one end of capacitor C5. The other end of capacitor C5 is grounded. The other end of resistor R6 is electrically connected to one end of resistor R7. The other end of resistor R7 is electrically connected to the anode of diode D1. The cathode of diode D1 is grounded. Pin 5 of the comparator U2 is electrically connected to the cathode of diode D2. The other ends of resistor R8 and capacitor C6 are both electrically connected to the anode of diode D2. Pin 5 of the comparator U2 is also electrically connected to the input terminal of the MCU controller. The other end of resistor R6 is electrically connected to pin 3 of operational amplifier U1.

[0012] Preferably, the directional coupler is used to monitor the forward / reflected power between the impedance matching network and the electrode in real time, and to calculate the tissue impedance by the MCU controller. The impedance Z = V / I is calculated by measuring the voltage V and current I at the electrode terminals.

[0013] Preferably, the detection circuit is used to extract the amplitude information of the high-frequency AC signal and convert it into a DC or low-frequency signal. It is also used to compare the amplitude ratio of the forward wave and the reflected wave to determine the impedance matching degree.

[0014] Preferably, the radio frequency power amplifier is used to amplify the radio frequency signal from the radio frequency signal generator to the power required for treatment.

[0015] Compared with existing technologies, the beneficial effects of this utility model are:

[0016] This invention, through the cooperation of an impedance matching network, an impedance detection circuit, and an MCU controller, can detect the degree of impedance matching before transmitting radio frequency energy to the electrodes, and match the impedance according to the degree of matching before transmitting it to the electrodes for treatment. This effectively reduces the situation where reflections caused by impedance mismatch lead to ineffective heating and improves the stability of the intelligent temperature regulation of the thermoplastic eye bag removal device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a heat-melting eye bag removal device with intelligent temperature adjustment proposed in this utility model;

[0018] Figure 2 This is a block diagram showing the connection of various components of a smart temperature-adjustable thermoplastic eye bag removal device proposed in this utility model.

[0019] Figure 3 The circuit diagram showing the impedance matching network and directional coupler connection of an intelligent temperature-adjustable thermoplastic eye bag removal device proposed in this utility model.

[0020] Figure 4 The circuit diagram shows the detection circuit of a heat-melting eye bag removal device with intelligent temperature adjustment proposed in this utility model.

[0021] In the picture: 1. The main body of the thermoplastic eye bag removal device; 2. The treatment facility. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1 A thermoplastic eye bag removal device with intelligent temperature adjustment includes a thermoplastic eye bag removal device body 1. The thermoplastic eye bag removal device body 1 includes a treatment mechanism 2 and a radio frequency signal generator built into the thermoplastic eye bag removal device body 1. The treatment mechanism 2 includes electrodes.

[0024] In this implementation plan: The existing device {publication (announcement) number}: CN209827191U discloses a municipal road and bridge construction compaction grouting device. The hot melt eye bag removal instrument body 1 and treatment mechanism 2 in this application document both adopt the same technical means as in this prior art. These technical means will not be described in detail here. Regarding this existing body, this application makes further improvements. For details, please refer to the disclosed technology below. In order to solve the technical problems existing in this prior art, such as the "large differences in impedance of different tissues (skin, fat, muscle) (e.g., fat has high impedance, muscle has low impedance), radio frequency energy will be reflected due to impedance mismatch during transmission, causing some energy to be reflected back to the radio frequency generator, reducing the effective heating power, thereby affecting the stability of intelligent temperature control" in combination, this problem is obviously a real and difficult problem to solve. Therefore, in order to solve this technical problem, an impedance matching network, an impedance detection circuit and an MCU controller are added to this application document.

[0025] It should be noted that the accessories used in treatment device 2 have been disclosed in publication number CN209827191U, and their effects can be referred to publication number CN209827191U (i.e., the "composition of treatment handle, sliding component, treatment component, treatment head and massage head" disclosed in this prior art).

[0026] Furthermore:

[0027] Reference Figure 1-4A smart temperature-adjustable thermoplastic eye bag removal device includes a radio frequency signal generator connected to a radio frequency power amplifier, a radio frequency power amplifier connected to an impedance matching network, an impedance matching network connected to an electrode, an impedance detection circuit connected to an impedance detection circuit, an MCU controller connected to an MCU controller, and an impedance matching network connected to the impedance matching network. The radio frequency power amplifier is used to amplify the radio frequency signal from the radio frequency signal generator to the power required for treatment.

[0028] The impedance detection circuit includes a directional coupler and a detection circuit. The directional coupler is connected between the impedance matching network and the electrode. The impedance matching network is used to convert the impedance output of the RF power amplifier into the tissue load impedance to maximize energy transfer efficiency.

[0029] The directional coupler is used to monitor the forward / reflected power between the impedance matching network and the electrode in real time, and calculates the tissue impedance by the MCU controller. The impedance Z = V / I is calculated by measuring the voltage V and current I at the electrode terminals.

[0030] The directional coupler includes resistors R1, R2, R3, and R4. Resistors R1, R2, R3, and R4 are connected in series to form a bridge. One end of capacitor C3 is electrically connected to pin 1 of the bridge, one end of capacitor C4 is electrically connected to pin 4 of the bridge, and pin 4 of the bridge is grounded. Pin 2 of the bridge is electrically connected to pin 1 of operational amplifier U1, and pin 3 of the bridge is electrically connected to pin 2 of operational amplifier U1.

[0031] The impedance matching network includes capacitors C1 and C2, which are connected in parallel. One end of capacitor C1 and one end of capacitor C2 are electrically connected to one end of the same inductor L1. The other end of inductor L1 is electrically connected to the other ends of capacitors C3 and C4. The other end of inductor L1 is grounded. One end of capacitor C1 and one end of capacitor C2 are grounded. The other ends of capacitors C1 and C2 are both electrically connected to the output of the RF power amplifier.

[0032] The detection circuit is used to extract the amplitude information of high-frequency AC signals and convert them into DC or low-frequency signals. It also compares the amplitude ratio of the forward and reflected waves to determine the impedance matching degree. The detection circuit includes comparator U2. Pin 1 of comparator U2 is electrically connected to one end of resistor R5, one end of resistor R8, and one end of capacitor C6. The other end of resistor R5 is grounded. Pin 2 of comparator U2 is electrically connected to one end of resistor R6. Pin 4 of comparator U2 is electrically connected to one end of capacitor C5. The other end of capacitor C5 is grounded. The other end of resistor R6 is electrically connected to one end of resistor R7. The other end of resistor R7 is electrically connected to the anode of diode D1. The cathode of diode D1 is grounded. Pin 5 of comparator U2 is electrically connected to the negative terminal of diode D2. The other end of resistor R8 and capacitor C6 are both electrically connected to the positive terminal of diode D2. Pin 5 of comparator U2 is also electrically connected to the input terminal of MCU controller. The other end of resistor R6 is electrically connected to pin 3 of operational amplifier U1. This invention, through the cooperation of impedance matching network, impedance detection circuit and MCU controller, can detect the impedance matching degree in advance before the radio frequency energy is transmitted to the electrode, and match the impedance according to the matching degree before transmitting it to the electrode for treatment. This effectively reduces the situation where reflection due to impedance mismatch leads to ineffective heating and improves the stability of intelligent temperature adjustment of the main body 1 of the thermoplastic eye bag removal device.

[0033] It should be noted that the MCU controller can be an STM32H743 controller, which reads the output of the directional coupler through the ADC pin. Channel 1 is the forward wave detection voltage and channel 2 is the reflected wave detection voltage. The specific parameter adjustment principle is based on the calculated impedance and impedance matching degree. The specific principle is existing technology and will not be elaborated here.

[0034] Working Principle: During operation, when the RF signal generator starts and outputs a RF signal at the set frequency, the RF power amplifier amplifies the signal to the initial treatment power, with the output impedance fixed at 50Ω. Simultaneously, the MCU controller loads default parameters. The initial treatment power is input to the impedance detection circuit via an impedance matching network. The directional coupler is connected to the RF link through capacitors C3 and C4, and couples a small amount of signal from the RF link through a bridge circuit, separating the forward wave and reflected wave. The detection circuit detects the high-frequency signal in the RF signal through diodes D1 and D2, outputting a DC voltage and a low-frequency signal. The directional coupler extracts the voltage V and current I and transmits them to the MCU controller. The MCU controller calculates the tissue impedance using the formula Z = V / I. If Z deviates from the target value, it is judged as a mismatch. Simultaneously, the detection circuit compares... Device U2 compares the amplitude ratio of the forward wave and the reflected wave to determine the impedance matching degree. The MCU controller adjusts the parameters of capacitor C1, capacitor C2 and inductor L1 of the impedance matching network according to the impedance matching degree to minimize the reflected power. The matched radio frequency energy acts on the eye bag tissue through the electrodes, generating a Joule heating effect (temperature 40-60℃), stimulating collagen contraction or fat dissolution. After the tissue is heated, it may dehydrate or carbonize, resulting in a dynamic increase in Z. During the treatment process, the impedance detection circuit continuously detects the impedance. If ΔZ>10% is detected, the MCU controller starts a new round of matching adjustment. By pre-matching the impedance before transmitting it to the electrodes for treatment, the situation where reflection due to impedance mismatch cannot be effectively heated can be effectively reduced, thus improving the stability of the intelligent temperature adjustment of the main body 1 of the thermoplastic eye bag removal device.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A thermoplastic eye bag removal device with intelligent temperature adjustment, comprising a thermoplastic eye bag removal device body (1), wherein the thermoplastic eye bag removal device body (1) includes a treatment mechanism (2) and a radio frequency signal generator built into the thermoplastic eye bag removal device body (1), wherein the treatment mechanism (2) includes electrodes, characterized in that, The radio frequency signal generator is connected to a radio frequency power amplifier, which is connected to an impedance matching network. The impedance matching network is connected to an electrode, and the impedance matching network is connected to an impedance detection circuit. The impedance detection circuit is connected to an MCU controller, and the MCU controller is connected to the impedance matching network.

2. The intelligent temperature-adjustable thermoplastic eye bag removal device according to claim 1, characterized in that, The impedance detection circuit includes a directional coupler and a detection circuit. The directional coupler is connected between the impedance matching network and the electrode. The impedance matching network is used to convert the impedance output by the RF power amplifier into the tissue load impedance, thereby maximizing the energy transfer efficiency.

3. The intelligent temperature-adjustable thermoplastic eye bag removal device according to claim 2, characterized in that, The directional coupler includes resistors R1, R2, R3, and R4, which are connected in series to form a bridge. Pin 1 of the bridge is electrically connected to one end of capacitor C3, pin 4 is electrically connected to one end of capacitor C4, pin 4 is grounded, pin 2 is electrically connected to pin 1 of operational amplifier U1, and pin 3 is electrically connected to pin 2 of operational amplifier U1.

4. The intelligent temperature-adjustable thermoplastic eye bag removal device according to claim 3, characterized in that, The impedance matching network includes capacitors C1 and C2, which are connected in parallel. One end of capacitor C1 and one end of capacitor C2 are electrically connected to one end of the same inductor L1. The other end of inductor L1 is electrically connected to the other ends of capacitors C3 and C4. The other end of inductor L1 is grounded. One end of capacitor C1 and one end of capacitor C2 are grounded. The other ends of capacitors C1 and C2 are both electrically connected to the output of the RF power amplifier.

5. The intelligent temperature-adjustable thermoplastic eye bag removal device according to claim 3, characterized in that, The detection circuit includes a comparator U2. Pin 1 of comparator U2 is electrically connected to one end of resistor R5, one end of resistor R8, and one end of capacitor C6. The other end of resistor R5 is grounded. Pin 2 of comparator U2 is electrically connected to one end of resistor R6. Pin 4 of comparator U2 is electrically connected to one end of capacitor C5. The other end of capacitor C5 is grounded. The other end of resistor R6 is electrically connected to one end of resistor R7. The other end of resistor R7 is electrically connected to the anode of diode D1. The cathode of diode D1 is grounded. Pin 5 of comparator U2 is electrically connected to the cathode of diode D2. The other ends of resistor R8 and capacitor C6 are both electrically connected to the anode of diode D2. Pin 5 of comparator U2 is also electrically connected to the input terminal of the MCU controller. The other end of resistor R6 is electrically connected to pin 3 of operational amplifier U1.

6. The intelligent temperature-adjustable thermoplastic eye bag removal device according to claim 2, characterized in that, The directional coupler is used to monitor the forward / reflected power between the impedance matching network and the electrode in real time, and calculates the tissue impedance by means of the MCU controller. The impedance Z = V / I is calculated by measuring the voltage V and current I at the electrode terminals.

7. The intelligent temperature-adjustable thermoplastic eye bag removal device according to claim 2, characterized in that, The detection circuit is used to extract the amplitude information of the high-frequency AC signal and convert it into a DC or low-frequency signal. It is also used to compare the amplitude ratio of the forward wave and the reflected wave to determine the impedance matching degree.

8. The intelligent temperature-adjustable thermoplastic eye bag removal device according to claim 1, characterized in that, The radio frequency power amplifier is used to amplify the radio frequency signal from the radio frequency signal generator to the power required for treatment.

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