Radio frequency detection imaging device and method

Abstract

The present invention provides a radio frequency detection imaging device, wherein a plurality of array-arranged electrodes are provided on a detection seat, the electrodes are electrically connected to a radio frequency generator through a switch array or a scanning signal control, the radio frequency generator is electrically connected to a main control chip, and a current detection module is also provided between the switch array and the main control chip. When in use, the electrodes are turned on in pairs through the switch array; the sequence of the turned-on electrodes is written into a memory; the current detection module converts the detected values ​​into impedance values; the impedance values ​​are matched with the turned-on electrode sequence; and the skin impedance is detected through the above steps. With the above structure, the impedance of the skin can be measured more accurately, providing a basis for setting the treatment parameters of the radio frequency current. Inflammation and diseased tissues are detected by detecting the displacement current generated by the alternating electromagnetic field in the skin tissue and restoring and reconstructing the image through a specific algorithm. The device of the present invention can also be used for skin treatment and beauty purposes.

Description

Technical Field

[0001] The invention relates to the field of medical devices, in particular to a radio frequency detection imaging device. Background Art

[0002] The beauty effect of radio frequency current on the skin has been confirmed. Chinese patent document CN105658274A records a skin treatment device using radio frequency current. The document records that the impedance of the skin can be measured. However, the measurement scheme recorded in the document is not accurate enough. There is no good rapid detection scheme for subcutaneous tumors in certain parts of the prior art. For example, when it comes to rapid detection of lumps in the breast, the prior art usually uses a light scheme for judgment, but in fact, lumps that can be identified by light or even manually usually delay the best treatment time. For the formation of skin ecchymosis, the early prevention effect is better than the effect of treatment at a later stage. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a radio frequency detection imaging device, which can detect the impedance of the skin at a faster speed and can judge the probability of the existence of subcutaneous tumors and ecchymosis according to the change of impedance.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a radio frequency detection imaging device, a plurality of array-arranged electrodes are provided on the detection base, the electrodes are electrically connected to the radio frequency generator through a switch array or a scanning signal control, the radio frequency generator is electrically connected to the main control chip, and a current detection module is also provided between the switch array and the main control chip.

[0005] In a preferred solution, a negative pressure port is further provided on the detection seat, the negative pressure port is connected to a vacuum pumping device, and the vacuum pumping device is electrically connected to the main control chip;

[0006] In a preferred solution, a negative pressure monitoring port is also provided, the negative pressure monitoring port is connected to a pressure sensor, and the pressure sensor is electrically connected to a main control chip.

[0007] In a preferred solution, a plurality of infrared light generating heads are also provided in the detection seat, and the infrared light generating heads are electrically connected to the main control chip;

[0008] In a preferred solution, a temperature detection head is also provided on the detection seat, and the temperature detection head is electrically connected to the main control chip.

[0009] In the preferred solution, for different treatment sites, the detection seat includes a flat type or a concave type that fits the working position;

[0010] In a preferred embodiment, the electrode includes a capacitive electrode or a metal electrode.

[0011] In a preferred solution, a display device is also provided, which is electrically connected to the main control chip and is used to display the detected data or images;

[0012] A touch button is also provided, which is electrically connected to the main control chip and is used for inputting control parameters;

[0013] A power supply is also provided for supplying power;

[0014] In the preferred solution, a protection module is further provided, the control end of the protection module is electrically connected to the main control chip, and the execution end of the protection module is electrically connected to the infrared light generating head and the radio frequency generator.

[0015] In the preferred solution, a buzzer is also provided, which is electrically connected to the main control chip, and when an abnormal situation occurs, the operator is reminded by sound.

[0016] The output frequency of the RF generator is 0~60MHz; 0 represents the output DC current, and the power is: 1~100W; in DC mode, the current density is 5-260 microA / cm 2 ;

[0017] The detection method includes the following steps:

[0018] S1, turning on the electrodes in pairs through the switch array;

[0019] The electrodes are turned on in a variety of equidistant and traversal ways;

[0020] S2, writing the sequence of the electrodes that are turned on into a memory;

[0021] S3, the current detection module converts the detected value into an impedance value;

[0022] S4, matching the impedance value with the sequence of electrodes that are turned on;

[0023] An array diagram is prepared according to the array of electrode conduction, and the detected values ​​are converted into grayscale values ​​and filled into the array diagram;

[0024] The array images obtained at various distances are superimposed, the values ​​at corresponding positions are summed up, and the calculated values ​​are converted into grayscale values;

[0025] The skin impedance is detected through the above steps.

[0026] The present invention provides a radio frequency detection imaging device, which adopts the above structure and can more accurately measure the impedance of the skin, providing a basis for parameter setting in radio frequency current treatment. In the preferred scheme, the inventor found that subcutaneous tumors and ecchymosis also have a certain influence on the current. Usually, in the same skin tissue type, the same current path length, and similar body parts, subcutaneous tumors and ecchymosis cause the current to drop and increase. Therefore, the abnormality of the current value can indicate the possible presence of subcutaneous tumors or ecchymosis. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0028] Figure 1 It is the overall structural block diagram of the present invention.

[0029] Figure 2 It is a structural schematic diagram of the detection seat in the present invention.

[0030] Figure 3 It is a circuit structure diagram of the current detection module in the present invention.

[0031] Figure 4 It is a structural schematic diagram of the electrode control circuit in the present invention.

[0032] Figure 5 It is an array diagram of the detection results in the present invention.

[0033] In the figure: electrode 1, detection seat 2, infrared light generating head 3, negative pressure port 4, temperature detection head 5, negative pressure monitoring port 6, switch array 7, radio frequency generator 8, current detection module 9. DETAILED DESCRIPTION

[0034] Embodiment 1:

[0035] like Figures 1 to 4 In the present invention, a radio frequency detection imaging device is provided with a plurality of array-arranged electrodes 1 on a detection seat 2, the electrodes 1 are connected to a radio frequency generator 8 through a switch array 7 or a scanning signal control, the radio frequency generator 8 is electrically connected to a main control chip, and a current detection module 9 is also provided between the switch array 7 and the main control chip. With this scheme, the detection accuracy is improved by array imaging. Figure 3In this example, the electrodes 1 are arranged in an array of rows and columns, and a switch is provided at both ends of each row and each column. The switch in this example can be an independent switch or a switch circuit in an integrated circuit. Alternatively, the electrode is operated by using a scanning signal control method, and the principle is similar to the radar pulse scanning method. The main control gives a pulse wave of a specific frequency, and the pulse peaks of different periods correspond to the electrodes at different positions. In a large cycle, all electrode groups in the matrix can be turned on once, and multiple times can also be designed for error correction. Through the above structure, the operation of each electrode 1 can be independently controlled. Preferably, the main control chip of the present invention adopts an ARM core chip. For example, the RT1052 chip of NXP. The data processing chip in the current detection module adopts the STM32 series chip.

[0036] The preferred solution is Figure 1 , 2 In the present invention, a negative pressure port 4 is also provided on the detection seat 2, and the negative pressure port 4 is connected to the vacuum pumping device, and the vacuum pumping device is electrically connected to the main control chip; with this structure, the detection seat 2 can be made close to the skin by vacuum pumping, so that the electrode 1 can be made close to the skin to reduce the influence of contact impedance on the detection value.

[0037] A negative pressure monitoring port 6 is also provided, which is connected to a pressure sensor, and the pressure sensor is electrically connected to the main control chip. This structure is used to detect negative pressure changes to avoid skin damage.

[0038] The preferred solution is Figure 2 In the embodiment, a plurality of infrared light generating heads 3 are also arranged on the detection seat 2, and the infrared light generating heads 3 are electrically connected to the main control chip. This scheme is used to promote skin metabolism and tissue healing.

[0039] The preferred solution is Figure 1 , 2 In the embodiment, the detection base 2 is also provided with a temperature detection head 5, which is electrically connected to the main control chip. With this structure, the skin is prevented from being injured by high temperature.

[0040] In a preferred solution, according to different treatment parts, the detection seat 2 includes a flat type or a concave type that fits the working position; this structure can be ergonomic.

[0041] The electrode 1 includes a capacitive electrode or a metal electrode. The capacitive electrode in this example is an insulating electrode.

[0042] The preferred solution is Figure 1 In the embodiment, a display device is also provided, and the display device is electrically connected to the main control chip for displaying the detected data or image; Figure 5 as shown in .

[0043] A touch button is also provided, which is electrically connected to the main control chip and is used to control the input of parameters; such as power, skin tissue type, position, frequency, and distance.

[0044] A power supply is also provided for supplying power;

[0045] There is also a buzzer to alert the operator with sound when an abnormal situation occurs.

[0046] A protection module is also provided, the control end of the protection module is electrically connected to the main control chip, and the execution end of the protection module is electrically connected to the infrared light generating head 3 and the radio frequency generator 8. In this example, the protection module adopts a relay, or an integrated circuit module similar to a relay, which is used to disconnect the circuit when a preset event occurs, such as when the temperature exceeds the limit.

[0047] In a preferred embodiment, the skin is rinsed with saline before detection; this embodiment can significantly reduce the impedance of the epidermis, so that the device of the present invention can detect the impedance change in the deep layer of the skin or fat to improve the detection accuracy. From the test results, after the skin is rinsed with saline, the epidermal impedance is reduced by about 90%. Further preferably, only the electrode contact position is rinsed, and this structure further increases the monitoring depth. In a further preferred embodiment, the skin is blown dry first, and then the electrode contact position is rinsed.

[0048] The output frequency of the RF generator 8 is 0-60 MHz, preferably 0-10 MHz, where 0 represents the output DC current. The AC current frequency is preferably between 0.5 and 1 MHz. The power is 1-100 W. Preferably, 25-100 W is used. In DC mode, the current density is 5-260 μA / cm 2 .

[0049] Through the above steps, the skin impedance is detected to guide the parameter setting in the subsequent treatment. And through the analysis of the impedance value, it is given to indicate whether there is a subcutaneous tumor or ecchymosis.

[0050] Embodiment 2:

[0051] On the basis of Example 1, according to the detected precise impedance value, the output current and frequency of each pair of electrodes are controlled in a scanning manner to treat the skin, so as to achieve better beauty and treatment effects.

[0052] Embodiment 3:

[0053] On the basis of Example 2, the infrared light generating head 3 is started to irradiate the skin after the treatment to obtain a better treatment effect and shorten the treatment time.

[0054] Embodiment 4:

[0055] The electric field and magnetic field formed by the radio frequency signal generated by the radio frequency generator 8 act mutually on the skin and subcutaneous tissue to perform treatment. The technical basis is bipolar radio frequency. Preferably, the electrode 1 used for treatment is a capacitive treatment head.

[0056] 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. A detection method using a radio frequency detection imaging device, characterized in that: A plurality of electrodes (1) arranged in an array are provided on the detection seat (2); the electrodes (1) are electrically connected to a radio frequency generator (8) through a switch array (7) or scanning signal control; the radio frequency generator (8) is electrically connected to a main control chip; and a current detection module (9) is further provided between the switch array (7) and the main control chip; The electrodes (1) are arranged in an array of rows and columns, and a switch is provided at both ends of each row and each column. The main control chip provides a pulse wave of a specific frequency, and pulse peaks of different periods correspond to electrodes (1) at different positions being turned on, so as to independently control the operation of each electrode (1); The electric field and magnetic field formed by the radio frequency signal generated by the radio frequency generator (8) mutually act on the skin and subcutaneous tissue; A negative pressure port (4) is also provided on the detection seat (2), the negative pressure port (4) is connected to a vacuum pumping device, and the vacuum pumping device is electrically connected to a main control chip; A negative pressure monitoring port (6) is also provided, the negative pressure monitoring port (6) is connected to a pressure sensor, and the pressure sensor is electrically connected to a main control chip; A plurality of infrared light generating heads (3) are also provided on the detection seat (2), and the infrared light generating heads (3) are electrically connected to the main control chip; The detection seat (2) is also provided with a temperature detection head (5), and the temperature detection head (5) is electrically connected to the main control chip; A display device is also provided, which is electrically connected to the main control chip and is used to display the detected data or images; A touch button is also provided, which is electrically connected to the main control chip and is used for inputting control parameters; A power supply is also provided for supplying power; A protection module is also provided, wherein the control end of the protection module is electrically connected to the main control chip, and the execution end of the protection module is electrically connected to the infrared light generating head (3) and the radio frequency generator (8); The output frequency of the RF generator (8) is 0-60 MHz, where 0 represents the output DC current, and the power is 1-100 W. In the DC mode, the current density is 5-260 μA / cm 2 ; The detection method includes the following steps: S1, connecting the electrodes (1) in pairs through the switch array (7); The electrodes (1) are electrically conductive in a variety of equidistant and traversing ways; S2, writing the sequence of the electrodes (1) that are turned on into a memory; S3, the current detection module (9) converts the detected value into an impedance value; S4, matching the impedance value with the sequence of the electrodes (1) that are turned on; An array diagram is prepared according to the array of electrodes (1) being turned on, and the detected values ​​are converted into grayscale values ​​and filled into the array diagram; The array images obtained at various distances are superimposed, the values ​​at corresponding positions are summed up, and the calculated values ​​are converted into grayscale values; The skin impedance is detected through the above steps.

2. The detection method using a radio frequency detection imaging device according to claim 1, characterized in that: According to different treatment parts, the detection seat (2) includes a flat type or a concave type that fits the working position; The electrode (1) comprises a capacitive electrode or a metal electrode.

3. The detection method using a radio frequency detection imaging device according to claim 1, characterized in that: Before testing, rinse the skin with saline.

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