Cosmetic treatment device and cosmetic treatment method

Abstract

The invention provides a beauty treatment device and a beauty treatment method capable of realizing skin beauty treatment. A cosmetic treatment device is provided with: a first electrode having a non-conductive film on the surface thereof, the non-conductive film being in contact with the skin surface of a person to be cared; a second electrode which is insulated from the first electrode and is in contact with the skin surface of the person to be cared; a third electrode which is insulated from the second electrode and is in contact with the skin surface of the person to be cared; and a power supply unit that applies a first high-frequency voltage to the first electrode and applies a second high-frequency voltage between the second electrode and the third electrode.

Description

Technical Field The present invention relates to a beauty treatment device and a beauty treatment method. Background Art A high-frequency beauty treatment device is disclosed in Patent Document 1. Prior Art Documents Patent Document 1: Japanese Patent No. 6212608 Gazette Summary of the Invention The technical problem to be solved by the present invention is skin beautification. As an example, the present invention provides the following technical solutions:

[0001] A beauty treatment device includes: a first electrode having a non-conductive film provided on a surface thereof, the non-conductive film being in contact with the skin surface of a person to be cared for; a second electrode insulated from the first electrode and in contact with the skin surface of the person to be cared for; a third electrode insulated from the second electrode and in contact with the skin surface of the person to be cared for; and a power supply unit that applies a first high-frequency voltage to the first electrode and a second high-frequency voltage between the second electrode and the third electrode.

[0002] The beauty treatment device according to [1], wherein the power supply unit includes: a first power supply as a main power supply; a second power supply that uses the power supplied from the first power supply to apply the first high-frequency voltage to the first electrode; a third power supply that uses the power supplied from the first power supply to apply the second high-frequency voltage between the second electrode and the third electrode; and an insulation circuit that insulates the second power supply from the third power supply.

[0003] The beauty treatment device according to [1], wherein at least a part of the first electrode is located in a region sandwiched by the second electrode and the third electrode to which the second high-frequency voltage is applied.

[0004] The beauty treatment device according to [1], wherein the first electrode, the second electrode, and the third electrode are arranged such that by applying the second high-frequency voltage to the second electrode and the third electrode, a region of the skin of the person to be cared for surrounding the first electrode is heated.

[0005] The beauty treatment device according to [1], wherein the second electrode is arranged around the first electrode via a first insulating portion, and the third electrode is arranged around the second electrode via a second insulating portion.

[0006] The beauty treatment device according to [5], wherein the central positions of the first electrode, the second electrode, and the third electrode are the same.

[0007] The beauty treatment device according to any one of [1] to [6], wherein the surface of the first electrode that abuts against the skin surface of the person being cared for is substantially circular or substantially annular.

[0008] The beauty treatment device according to any one of [1] to [6], wherein the surface of the second electrode that contacts the skin surface of the person being cared for is substantially annular, and the surface of the third electrode that contacts the skin surface of the person being cared for is substantially annular.

[0009] The beauty treatment device according to [1] or [4], wherein the surface of the first electrode that contacts the skin surface of the person being cared for is substantially circular or substantially annular centered on a specified point, the surface of the second electrode that contacts the skin surface of the person being cared for is substantially annular centered on the specified point, and the surface of the third electrode that contacts the skin surface of the person being cared for is substantially annular centered on the specified point.

[0010] The beauty treatment device according to any one of [1] to [6], wherein the power supply unit applies the first high-frequency voltage to the first electrode after the first electrode abuts against the skin surface of the person being cared for.

[0011] The beauty treatment device according to any one of [1] to [6], wherein the power supply unit applies the first high-frequency voltage to the first electrode after the second electrode and the third electrode abut against the skin surface of the person being cared for.

[0012] The beauty treatment device according to any one of [1] to [6], wherein the power supply unit stops applying the first high-frequency voltage to the first electrode when the second electrode and the third electrode are away from the skin surface of the person being cared for.

[0013] The beauty treatment device according to any one of [1] to [6], wherein the beauty treatment device includes a unit for detecting the value of the current flowing between the second electrode and the third electrode, and the power supply unit controls the timing of applying the first high-frequency voltage to the first electrode according to the current value.

[0014] The beauty treatment device according to any one of [1] to [6], wherein the beauty treatment device includes a unit for detecting the resistance value between the second electrode and the third electrode, and the power supply unit controls the timing of applying the first high-frequency voltage to the first electrode according to the resistance value.

[0015] The beauty treatment device according to any one of [1] to [6], wherein the beauty treatment device includes a unit that detects a current value flowing between the second electrode and the third electrode, and the power supply unit controls the amplitude of the first high-frequency voltage applied to the first electrode or the on / off duty ratio based on the current value.

[0016] The beauty treatment device according to any one of [1] to [6], wherein the beauty treatment device includes a unit that detects a resistance value between the second electrode and the third electrode, and the power supply unit controls the amplitude of the first high-frequency voltage applied to the first electrode or the on / off duty ratio based on the resistance value.

[0017] The beauty treatment device according to any one of [1] to [6], wherein the first electrode is convex toward the skin surface.

[0018] A beauty treatment method, characterized by comprising: a step of applying a first high-frequency voltage to a first electrode having a non-conductive film provided on its surface and in contact with the skin surface of the person to be cared for, while applying a second high-frequency voltage between a second electrode and a third electrode, the second electrode being insulated from the first electrode and in contact with the skin surface of the person to be cared for, and the third electrode being insulated from the second electrode and in contact with the skin surface of the person to be cared for.

[0019] The beauty treatment method according to

[18] , wherein the first high-frequency voltage is applied to the first electrode to heat the subcutaneous tissue of the skin of the person to be cared for.

[0020] The beauty treatment method according to

[18] , wherein the first high-frequency voltage is applied to the first electrode to heat the subcutaneous tissue and the SMAS fascia of the skin of the person to be cared for.

[0021] The beauty treatment method according to any one of

[18] to

[20] , wherein the first high-frequency voltage is applied to the first electrode to heat the skin of the person to be cared for by induction heating, and the second high-frequency voltage is applied between the second electrode and the third electrode to heat the skin of the person to be cared for by causing a high-frequency current to flow through the skin of the person to be cared for located between the second electrode and the third electrode.

[0022] The beauty treatment method according to any one of

[18] to

[20] , wherein the above step is performed more than once a week.

[0023] The beauty treatment method according to any one of

[18] to

[20] , wherein the first high-frequency voltage is applied to the first electrode to heat the skin of the person to be cared for to a specified temperature up to a first depth, and the second high-frequency voltage is applied between the second electrode and the third electrode to heat the skin of the person to be cared for to the specified temperature up to a second depth, and the first depth is deeper than the second depth.

[0024] A method for producing beautiful skin, characterized by comprising: a step of applying a first high-frequency voltage to a first electrode provided with a non-conductive film on its surface and in contact with the skin surface of the person to be cared for, and applying a second high-frequency voltage between a second electrode insulated from the first electrode and in contact with the skin surface of the person to be cared for, and a third electrode insulated from the second electrode and in contact with the skin surface of the person to be cared for.

[0025] A beauty treatment device, characterized by comprising: a first heating unit configured to heat the skin of the person to be cared for to a specified temperature up to a first depth; and a second heating unit configured to heat the skin of the person to be cared for to the specified temperature up to a second depth, and the first depth is deeper than the second depth.

[0026] The beauty treatment device according to

[25] , wherein the first heating unit heats a first area of the skin of the person to be cared for by induction heating, the second heating unit heats a second area of the skin of the person to be cared for by conductive heating, and the shortest distance between the first area and the second area is 3 cm or less.

[0027] The beauty treatment device according to

[25] or

[26] , wherein the first heating unit heats the first depth and the second heating unit heats the second depth to increase the density of the collagen fiber network in the subcutaneous tissue of the person to be cared for.

[0028] The beauty treatment device according to

[25] or

[26] , wherein the first heating unit heats the first depth and the second heating unit heats the second depth to increase the force for supporting the skin in the SMAS fascia of the person to be cared for.

[0029] The beauty treatment device according to

[25] or

[26] , wherein the first heating unit has a first electrode, the second heating unit has a second electrode and a third electrode, a first high-frequency voltage is applied to the first electrode to heat the skin of the person to be cared for by induction heating, and a second high-frequency voltage is applied between the second electrode and the third electrode to heat the skin of the person to be cared for by causing a high-frequency current to flow through the skin of the person to be cared for between the second electrode and the third electrode.

[0030] A beauty treatment method, characterized by comprising: a first step of heating the skin of a person to be cared for to a specified temperature up to a first depth; and a second step of heating the skin of the person to be cared for to the specified temperature up to a second depth, wherein the first depth is deeper than the second depth. According to the present invention, beauty of the skin can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1A is a functional block diagram of a beauty treatment device according to a first embodiment. Figure 1B is a schematic perspective view of the beauty treatment device. Figure 1C is a schematic view of the beauty treatment device as viewed from below. Figure 1D is a cross-sectional view schematically showing a state in which the beauty treatment device is applied to the skin 50 of a person to be cared for and used. Figure 2A is a graph showing experimental results. Figure 2B is a graph showing experimental results. Figure 3A is a schematic cross-sectional view of the monopolar electrode 1. Figure 3B is a schematic cross-sectional view of the monopolar electrode 1. Figure 4A is a schematic view of the beauty treatment device according to a first modification as viewed from below. Figure 4B is a schematic view of the beauty treatment device according to a second modification as viewed from below. Figure 4C is a schematic view of the beauty treatment device according to a third modification as viewed from below. Figure 4D is a schematic view of the beauty treatment device according to a fourth modification as viewed from below. Figure 4E is a schematic view of the beauty treatment device according to a fifth modification as viewed from below. Figure 4F is a schematic view of the beauty treatment device according to a sixth modification as viewed from below. Figure 4G is a schematic view of the beauty treatment device according to a seventh modification as viewed from below. Figure 4H is a schematic view of the beauty treatment device according to an eighth modification as viewed from below. Figure 4I is a schematic view of the beauty treatment device according to a ninth modification as viewed from below. Figure 4J is a schematic view of the locking beauty treatment device according to a tenth modification as viewed from below. Figure 5A It is a schematic view of the beauty treatment device of the eleventh modified example as observed from below. Figure 5B It is a schematic view of the beauty treatment device of the twelfth modified example as observed from below. Figure 5C It is a schematic view of the beauty treatment device of the thirteenth modified example as observed from below. Figure 5D It is a schematic view of the beauty treatment device of the fourteenth modified example as observed from below. Figure 5E It is a schematic view of the beauty treatment device of the fifteenth modified example as observed from below. Figure 5F It is a schematic view of the beauty treatment device of the sixteenth modified example as observed from below. Figure 5G It is a schematic view of the beauty treatment device of the seventeenth modified example as observed from below. Figure 5H It is a schematic view of the beauty treatment device of the eighteenth modified example as observed from below. Figure 5I It is a schematic view of the beauty treatment device of the nineteenth modified example as observed from below. Figure 6 It is a graph showing the experimental results. Figure 7 It is a graph showing the experimental results. Figure 8 It is a functional block diagram of the beauty treatment device of the second embodiment. Figure 9 It is other functional block diagrams of the beauty treatment devices of the respective embodiments. Detailed implementation manners The present inventors have invented a beauty treatment device including: a first heating unit configured to heat the skin of a person to be cared for to a predetermined temperature up to a first depth; and a second heating unit configured to heat the skin of the person to be cared for to the predetermined temperature up to a second depth, where the first depth is deeper than the second depth. In addition, the present inventors have invented a beauty treatment method including: a first step of heating the skin of a person to be cared for to a predetermined temperature up to a first depth; and a second step of heating the skin of the person to be cared for to the predetermined temperature up to a second depth, where the first depth is deeper than the second depth. Through these devices or methods, skin beautification can be achieved. Here, preferably, the first heating unit or the first process heats the first area of ​​the skin of the care receiver by induction heating, and the second heating unit or the second process heats the second area of ​​the skin of the care receiver by conductive heating, and the shortest distance between the first area and the second area is close. The so-called close means, for example, less than 3 cm. Thus, efficient heating can be performed from the first depth to the second depth. In addition, it is preferred that the first depth is heated in the first heating unit or the first step, and the second depth is heated in the second heating unit or the second step to increase the density of the collagen fiber network in the subcutaneous tissue of the subject. As a result, the density of the collagen fiber network is increased and skin sagging is improved. In addition, it is preferred that the first depth is heated in the first heating unit or the first step, and the second depth is heated in the second heating unit or the second step, so as to increase the force supporting the skin within the SMAS fascia of the subject. As a result, the amount of water in the SMAS muscle membrane increases, the force supporting the skin is improved, and thus the sagging of the skin is improved. As a specific example, the first heating unit has a first electrode. The second heating unit has a second electrode and a third electrode. In addition, a first high-frequency voltage is applied to the first electrode so that the skin of the care recipient is heated by induction heating. In addition, a second high-frequency voltage is applied between the second electrode and the third electrode so that a high-frequency current flows through the skin of the care recipient between the second electrode and the third electrode to heat the skin of the care recipient. However, in addition to heating based on high-frequency electrical signals, heating can also be AC ​​stimulation (medium frequency, high frequency), focused ultrasound (High-Intensity Focused Ultrasound: HIFU), heaters, and electromagnetic waves. As a specific example, it is assumed that the first heating unit (first process) and the second heating unit (second process) use bipolar electrode heating, unipolar electrode heating, and monopolar electrode heating, respectively. The heating of the first step and the heating of the second step may be performed by one device or by another device (for example, a household device and a medical device). In addition, the heating of the first step and the heating of the second step may be performed simultaneously at the first depth and the second depth, or at different times. In the latter case, for example, one device may apply low power to heat the second depth, and apply high power to heat the first depth at other times. Hereinafter, more specific embodiments of the present invention will be specifically described with reference to the accompanying drawings. (First Embodiment) Figure 1A FIG. is a functional block diagram of the beauty treatment device according to the first embodiment. Figure 1B FIG. is a schematic perspective view of the beauty treatment device. Figure 1C FIG. is a schematic view of the beauty treatment device observed from below. Figure 1D FIG. is a cross-sectional view schematically showing a state in which the beauty treatment device is applied to the skin 50 of the person to be cared for and used. In addition, in Figure 1D , the heated part in the skin 50 is schematically indicated by diagonal lines. It is assumed that the beauty treatment device is mainly for household use, for example, used once, twice, three times, four times, five times, six times a week or every day. The beauty treatment device includes a monopolar electrode 1 (first electrode), a pair of first bipolar electrodes 2a (second electrodes), a second bipolar electrode 2b (third electrode), and a power supply unit 3. A non-conductive film 11 is provided on the surface (front end) of the monopolar electrode 1. As an example, the material of the monopolar electrode 1 is aluminum, and the non-conductive film 11 of alumina is formed by performing anodic oxidation treatment on its surface. Moreover, the non-conductive film 11 abuts against the skin surface 51 of the person to be cared for. In addition, although the non-conductive film 11 is provided on the surface (front end) of the monopolar electrode 1, it is not limited thereto, and the non-conductive film 11 may not be provided on the surface (front end) of the monopolar electrode 1. The first bipolar electrode 2a is insulated from the monopolar electrode 1 by an insulating portion such as an insulator or an air layer. The second bipolar electrode 2b is insulated from the first bipolar electrode 2a by an insulating portion such as an insulator or an air layer (not shown). In order to perform heating efficiently, the distance between the bipolar electrodes 2a and 2b is preferably 1 to 3 mm. Moreover, the bipolar electrodes 2a and 2b abut against the skin surface 51 of the person to be cared for. The power supply unit 3 applies a high-frequency voltage (first high-frequency voltage) to the monopolar electrode 1. More specifically, the power supply unit 3 applies a high-frequency voltage to the monopolar electrode 1 to heat the skin 50 of the person to be cared for by induction heating. The frequency preferably conforms to the standard specified in the ISM band (International Telecommunication Union). As a specific example, the frequency is 13.56 MHz, 27, 12 MHz, or 40.68 MHz. In addition, the peak-to-peak value of the voltage is, for example, 100 V, but it may be higher than that. In addition, when the beauty treatment device is for household use, the power output is, for example, less than 50 W which does not require an application to the Ministry of Internal Affairs and Communications and can be handled at home even without being a doctor. The power supply unit 3 applies a high-frequency voltage (second high-frequency voltage) between the bipolar electrodes 2a and 2b. More specifically, the power supply unit 3 applies a high-frequency voltage so that a high-frequency current flows through the skin 50 of the care recipient located between the bipolar electrodes 2a and 2b, and heats the skin 50 of the care recipient (especially Figure 1D the epidermis 52 and dermis 53 shown) by conductive heating. Its frequency is, for example, around 10 kHz to 6 MHz. In addition, the peak-to-peak voltage is, for example, 100 V. In addition, when the beauty treatment device is for household use, for the above reasons, the output is preferably less than 50 W. There is no limitation on the waveform of the applied high-frequency voltage. For example, it can be a sine wave or a rectangular wave with a specified on / off duty ratio. In addition, in addition to the inductive heating of the monopolar electrode 1 and the conductive heating of the bipolar electrodes 2a and 2b, the monopolar electrode 1 and the bipolar electrodes 2a and 2b themselves also come into contact with the skin 50 through which the current flows and are heated by the effect of electric heating. Therefore, the skin 50 is also heated by this heating. The power supply unit 3 can supply power from a commercial power supply or from a primary battery or a secondary battery. In addition, for example, according to the operation of the operator himself / herself to turn on the switch (not shown) provided on the housing of the beauty treatment device, the power supply unit 3 applies a high-frequency voltage to the monopolar electrode 1 and the bipolar electrodes 2a and 2b. Then, according to the operation of the operator himself / herself to turn off the switch (not shown), the power supply unit 3 stops applying the high-frequency voltage to the monopolar electrode 1 and the bipolar electrodes 2a and 2b. In the present embodiment, as Figure 1D shown, by the inductive heating by applying a high-frequency voltage to the monopolar electrode 1, the monopolar electrode 1 can heat a deeper position of the skin 50. For example, the power supply unit 3 preferably applies a high-frequency voltage to the monopolar electrode 1 to heat the subcutaneous tissue 54 of the skin 50. The subcutaneous tissue 54 contains collagen. Therefore, by heating the subcutaneous tissue 54, the density of the collagen fiber network existing in the adipose tissue is increased. For example, by applying it to the facial skin, the facial relaxation can be improved. In addition, more preferably, the power supply unit 3 applies a high-frequency voltage to the monopolar electrode 1 to heat the SMAS fascia 55 located between the subcutaneous tissue 54 and the muscle (not shown). The SMAS fascia 55 also contains collagen. Therefore, by heating the SMAS fascia 55, the moisture content in the SMAS fascia 55 increases, and the force supporting the skin is improved. For example, by applying it to the facial skin, the facial relaxation can be improved. On the other hand, through conductive heating by applying a high-frequency voltage between the bipolar electrodes 2a and 2b, the bipolar electrodes 2a and 2b can heat a shallower position of the skin 50. As a result, the epidermis 52 and dermis 53 of the skin 50 are heated, the activation of fibroblasts and the production of collagen are promoted, and wrinkles, sagging, and elasticity of the skin 50 are improved. The inventors conducted an experiment applying a prototype of the beauty treatment device to agar that mimics the skin 50. Figure 2A and Figure 2B The results (the figure obtained by grayscale processing the color image of Figure 2A is Figure 2B ). When high-frequency voltages of 500 kHz and 2.5 MHz are applied to the bipolar electrodes 2a and 2b, the depths heated to 40 degrees are 1.87 mm and 2.14 mm respectively, and these are depths corresponding to the epidermis 52 and dermis 53 in the skin 50. On the other hand, when a high-frequency voltage of 40.68 MHz is applied to the monopolar electrode 1, the depth heated to 40 degrees is 4.08 mm, which is the depth corresponding to the SMAS fascia 55 in the skin 50. That is, in the bipolar electrode, a depth of about 1 to 3 mm is heated to 40 degrees, and in the monopolar electrode, a depth of about 4 mm is heated to 40 degrees. In this way, the power supply unit 3 applies a high-frequency voltage to the bipolar electrodes 2a and 2b to heat the skin 50 of the person being cared for to a specified temperature (e.g., 40 degrees) to a certain depth. In addition, it is effective for the power supply unit 3 to apply a high-frequency voltage to the monopolar electrode 1 so that the skin 50 of the person being cared for is heated to a specified temperature (e.g., 40 degrees) to a deeper position. The shape and arrangement of each electrode can be arbitrary, and specific examples are described below. The shape of the surface of the monopolar electrode 1 that abuts against the skin surface 51 of the person being cared for is, for example, approximately circular, approximately circular ring-shaped, or approximately rectangular. In addition, as shown in the cross-sectional view of Figure 3A , the surface of the monopolar electrode 1 that abuts against the skin surface 51 of the person being cared for can be flat. Or, as shown in the cross-sectional view of Figure 3B , the surface of the monopolar electrode 1 that abuts against the skin surface 51 of the person being cared for can also be convex. In the case of being convex, the protruding part of the monopolar electrode 1 first abuts against the skin surface 51, and then other parts abut against the skin surface 51. Therefore, it is easy for the operator to detect the contact of the monopolar electrode 1 with the skin 50. The shape of the surfaces of the bipolar electrodes 2a and 2b that come into contact with the skin surface 51 of the person being cared for is, for example, approximately circular or approximately rectangular. In addition, it is preferable that the distance between the first bipolar electrode 2a and the second bipolar electrode 2b is constant. More specifically, it is preferable that the distance from any point on the edge portion of the first bipolar electrode 2a that faces the second bipolar electrode 2b to the second bipolar electrode 2b is constant. As a result, the power supply unit 3 can pass a current between the bipolar electrodes 2a and 2b without deviation. In addition, as the positional relationship between the unipolar electrode 1 and the bipolar electrodes 2a and 2b, it is preferable to arrange the first bipolar electrode 2a around the unipolar electrode 1 and arrange the second bipolar electrode 2b around the first bipolar electrode 2a. With such an arrangement, the skin 50 is heated more efficiently. In addition, the "around the unipolar electrode 1" does not necessarily surround the entire circumference of the unipolar electrode 1, and a part of it may be surrounded. The same applies to the "around the first bipolar electrode 2a". As a more specific configuration example, the central positions of the unipolar electrode 1 and the bipolar electrodes 2a and 2b may be the same, and the central position may also be the center of the unipolar electrode 1. As Figure 1C shown, the surface of the unipolar electrode 1 that comes into contact with the skin surface 51 of the operator is approximately circular (or approximately circular ring-shaped). In the case where the surfaces of the bipolar electrodes 2a and 2b that come into contact with the skin surface 51 of the operator are approximately circular ring-shaped, their central positions may be the same. It should be noted that, as Figure 1D shown, the surface of the unipolar electrode 1 that comes into contact with the skin surface 51 and the surfaces of the bipolar electrodes 2a and 2b that come into contact with the skin surface 51 may be in the same plane, or may protrude toward the skin surface 51 in any direction. In addition, the shapes and positions of the respective electrodes can be changed appropriately. For example, the modified examples shown Figures 4A - 4J can be considered (all are schematic views observed from below). In each figure, the first bipolar electrodes 2a1, 2a2, etc. (sometimes collectively referred to as the "first bipolar electrode 2a") marked with symbols containing "2a" are electrically connected to each other. In addition, the second bipolar electrodes 2b1, 2b2, etc. (sometimes collectively referred to as the "second bipolar electrode 2b") marked with symbols containing "2b" are electrically connected to each other. Then, a high-frequency current flows through the skin 50 of the caregiver located between the first bipolar electrode 2a and the second bipolar electrode 2b, and the skin 50 is heated. In addition, the heated part is schematically shown by diagonal lines. As shown in these figures, there may be a plurality of first bipolar electrodes 2a and a plurality of second bipolar electrodes 2b (in other words, the first bipolar electrode 2a may be divided into two or more, and the second bipolar electrode 2b may also be divided into two or more). The number of the first bipolar electrodes 2a and the number of the second bipolar electrodes 2b may be equal (for example Figures 4A - 4F 、 Figures 4H - 4J ), or may be different (for example Figure 4G ). The shape of the monopolar electrode 1 is not limited to circular or circular ring-shaped, and can also be polygonal such as triangular, quadrilateral, hexagonal (for example Figure 4C ), spherical, etc. The shape of the bipolar electrodes 2a and 2b can be circular (for example Figure 4D ), a shape formed by connecting two arcs with the same central position and central angle (so-called Baumkuchen type, for example Figure 4A , Figure 4B ), polygonal such as triangular (for example Figure 4C , Figures 4G - 4J ), a shape with rounded corners of a polygon (for example Figure 4F ), a water droplet shape (for example Figure 4E ), etc. In addition, in order to perform conductive heating efficiently, it is preferable that the distance between the adjacent first bipolar electrode 2a and the second bipolar electrode 2b is about 1 mm to 3 mm. When the adjacent first bipolar electrode 2a and the second bipolar electrode 2b are parallel (for example Figure 4F , Figure 4G , Figure 4I , Figure 4J ), the space between the bipolar electrodes 2a and 2b is heated evenly. On the other hand, when the shapes of the bipolar electrodes 2a and 2b have curved surfaces (for example Figure 4A , 4B , 4D, 4E), or when they are non-parallel (for example Figure 4C , Figure 4H ), the current concentrates and flows to the part where the distance between the bipolar electrodes 2a and 2b is close, and this part is heated. The area mainly heated by the bipolar electrodes 2a and 2b is between the bipolar electrodes 2a and 2b (the hatched parts in each figure, based on conductive heating). However, current also flows through the part where the distance between the bipolar electrodes 2a and 2b is far, and not only the area where the adjacent bipolar electrodes 2a and 2b are close to each other (the hatched parts in each figure), but also the area where the distance between the adjacent bipolar electrodes 2a and 2b is far is heated. In addition, the area between the non-adjacent bipolar electrodes 2a and 2b is also heated. Moreover, it is preferable to arrange the monopolar electrode 1 and the bipolar electrodes 2a and 2b in such a way that the area of the caregiver's skin 50 surrounding the monopolar electrode 1 is heated by applying a high-frequency voltage to the bipolar electrodes 2a and 2b. The reason is that by heating the periphery of the monopolar electrode 1 with the bipolar electrodes 2a and 2b, the epidermis 52 and the dermis 53 of the skin 50 are heated, and combined with the inductive heating of the monopolar electrode 1, the overall heating efficiency from the shallow part (epidermis 52 and dermis 53) to the deep part (subcutaneous tissue 54 and SMAS fascia 55) of the skin 50 becomes better. However, the monopolar electrode 1 may not be surrounded 360 degrees by the region heated by the bipolar electrodes 2a and 2b in the caregiver's skin 50. The bipolar electrodes 2a and 2b only need to surround the monopolar electrode 1 to a sufficient degree for good heating efficiency. In addition, when there are multiple first bipolar electrodes 2a, the positional relationship between one first bipolar electrode 2a and another first bipolar electrode 2a may also be symmetric with respect to the (center) point of the monopolar electrode 1 (for example Figure 4B , Figure 4D , Figures 4G - 4J ). The same applies when there are multiple second bipolar electrodes 2b. Alternatively, the positional relationship between one first bipolar electrode 2a and one second bipolar electrode 2b may also be symmetric with respect to the (center) point of the monopolar electrode 1 (for example Figure 4A , Figure 4C , Figure 4E , Figure 4F ). Additionally, the bipolar electrodes 2a and 2b may also be line-symmetric with respect to a specified line passing through the (center) of the monopolar electrode 1 (for example Figures 4A - 4J ). In addition to the above Figures 4A - 4J variation, other variations as shown in, for example Figures 5A - 5I are also considered (schematic diagrams viewed from below). Figures 5A - 5I The other variations shown in have the same electrode configuration as the variation shown in Figures 4A - 4J , but the combination of the bipolar electrodes 2a and 2b to which the high-frequency voltage is applied is changed, and the main heated region is different from the variation shown in Figures 4A - 4J . In each figure, the combination of the first bipolar electrode 2a and the second bipolar electrode 2b to which the high-frequency voltage is applied is arranged to face each other with the monopolar electrode 1 in between. Then, a high-frequency current flows through the caregiver's skin 50 located between these first bipolar electrode 2a and second bipolar electrode 2b, and the skin 50 is heated. In addition, in Figures 5A - 5I , the portion mainly heated by the combination of the first bipolar electrode 2a and the second bipolar electrode 2b is schematically indicated by an arrow. Figures 5A - 5I The monopolar electrode 1 shown in is arranged in the region heated by applying a high-frequency voltage to the combination of the first bipolar electrode 2a and the second bipolar electrode 2b. That is, the monopolar electrode 1 is arranged in the region sandwiched by the first bipolar electrode 2a and the second bipolar electrode 2b to which the high-frequency voltage is applied. In addition, when applying a high-frequency voltage to the bipolar electrodes 2a and 2b, the power supply unit 3 can apply the high-frequency voltage only to an arbitrary combination of the bipolar electrodes 2a and 2b. For example, in the case of Figure 5A , the power supply unit 3 can apply the high-frequency voltage only to the combination of the bipolar electrode 2a1 and the bipolar electrode 2b2. In the case of Figure 5BIn this case, the power supply unit 3 can apply a high-frequency voltage only to the combination of the bipolar electrode 2a1 and the bipolar electrode 2b1, and the combination of the bipolar electrode 2a2 and the bipolar electrode 2b2. Thus, in Figures 5A - 5I In the other modification example shown, the power supply unit 3 can apply a high-frequency voltage to the combination of the bipolar electrodes 2a and 2b that face each other with the unipolar electrode 1 therebetween. In addition, here, a high-frequency voltage is applied to the combination of the bipolar electrodes 2a and 2b that face each other with at least a part of the unipolar electrode 1 therebetween, but the combination of the bipolar electrodes 2a and 2b to which the high-frequency voltage is applied is not limited to this. In short, the power supply unit 3 only needs to apply a high-frequency voltage to the combination of the bipolar electrodes 2a and 2b arranged with the unipolar electrode 1 therebetween. Further, in order to selectively apply a high-frequency voltage to the combination of the bipolar electrodes 2a and 2b arranged with the unipolar electrode 1 therebetween, for example, a switching switch (not shown) may be provided between the power supply unit 3 and the bipolar electrodes 2a and 2b to switch the presence or absence of electrical connection between the power supply unit 3 and each of the bipolar electrodes 2a and 2b. In order to efficiently perform conductive heating by the bipolar electrodes 2a and 2b arranged with the unipolar electrode 1 therebetween, the distances between the bipolar electrodes 2a and 2b and the unipolar electrode 1 are each preferably within 7.5 mm. Figure 6 、 Figure 7 is a graph showing the temperature change of agar imitating the skin 50 when using the beauty treatment device of the first embodiment. When obtaining these graphs, the unipolar electrode 1 and the bipolar electrodes 2a and 2b are brought into contact with the agar, and the temperature of the agar is measured using an infrared thermal imager. Figure 6 Indicates that through Figures 5A - 5I The temperature change in Test A heated by the modification example shown and, as a comparative example thereof, the temperature changes in Test B heated only by the bipolar electrodes 2a and 2b and Test C heated only by the unipolar electrode 1. As a result, it was confirmed that, according to Test A, the temperature rose to 40 degrees in a shorter time compared to Test B and Test C. That is, in the beauty treatment device of the first embodiment, by applying a high-frequency voltage to the bipolar electrodes 2a and 2b and simultaneously applying a high-frequency voltage to the unipolar electrode 1, the part to be cared for can be heated to a high temperature in a short time. Figure 7 Indicates that through Figures 5A - 5I The temperature change in Test A heated by the modification example shown and the temperature change in Test D heated by the modification example shown in Figures 4A - 4J . As a result, according to Test A, it was confirmed that it took a longer time to return to the temperature before heating after the temperature rose compared to Test D. That is, as shown in the modification example in Figures 5A - 5I , by applying a high-frequency voltage to the combination of the bipolar electrodes 2a and 2b arranged at positions sandwiching the unipolar electrode 1, the heat storage property can be improved. As described above, in the present embodiment, in addition to the conductive heating from the bipolar electrodes 2a and 2b, induction heating from the unipolar electrode 1 is also performed, so that deeper parts of the skin 50 can be heated, and the beauty effect is improved. (Second Embodiment) In the beauty treatment device described in the first embodiment, it is preferable to apply a high-frequency voltage from the power supply unit 3 after the unipolar electrode 1 reliably abuts against the skin surface 51. This is because if a high-frequency voltage is applied in a state where only a part of the unipolar electrode 1 abuts against the skin surface 51, the contact area between the unipolar electrode 1 and the skin surface 51 is small, and sparks may be generated. In the second embodiment described below, the generation of such sparks is suppressed. Figure 8 It is a functional block diagram of the beauty treatment device of the second embodiment. The unipolar electrode 1 and the bipolar electrodes 2a and 2b may be the electrodes of the first embodiment. The power supply unit 3 of the present embodiment has a detection unit 31. The detection unit 31 detects the abutment of the unipolar electrode 1 against the skin surface 51. Then, the power supply unit 3 applies a high-frequency voltage to the unipolar electrode 1 according to the detection result. As a specific example, the power supply unit 3 applies a high-frequency voltage to the unipolar electrode 1 after the unipolar electrode 1 abuts against the skin surface 51. In addition, if the unipolar electrode 1 separates from the skin surface 51, the power supply unit 3 stops applying the high-frequency voltage to the unipolar electrode 1. When the surface of the unipolar electrode 1 that abuts against the skin surface 51 and the surfaces of the bipolar electrodes 2a and 2b that abut against the skin surface 51 are substantially in the same plane, if the unipolar electrode 1 abuts against the skin surface 51, the bipolar electrodes 2a and 2b also abut against the skin surface 51. Therefore, the detection unit 31 may also detect the abutment of the bipolar electrodes 2a and 2b against the skin surface 51. Moreover, the power supply unit 3 may apply a high-frequency voltage to the unipolar electrode 1 after the bipolar electrodes 2a and 2b abut against the skin surface 51. Alternatively, the unipolar electrode 1 may be convex ( Figure 3B ), and may contact the skin surface 51 before the bipolar electrodes 2a and 2b. Moreover, the power supply unit 3 may apply a high-frequency voltage to the unipolar electrode 1 after the detection unit 31 detects the abutment of the bipolar electrodes 2a and 2b against the skin surface 51. More specifically, if the unipolar electrode 1 abuts against the skin surface 51, the bipolar electrodes 2a and 2b also abut against the skin surface 51, and the skin surface 51 is interposed between the bipolar electrodes 2a and 2b. Therefore, compared with the case where the unipolar electrode 1 does not abut against the skin surface 51, the resistance value between the bipolar electrodes 2a and 2b becomes smaller when abutting against the skin surface 51. Therefore, the power supply unit 3 controls the timing of applying a high-frequency voltage to the monopolar electrode 1 based on the detected resistance value. More specifically, when the resistance value is lower than the threshold value, the monopolar electrode 1 is in contact with the skin surface 51, and the power supply unit 3 can apply a high-frequency voltage to the monopolar electrode 1. In addition, when the monopolar electrode 1 separates from the skin surface 51, the resistance value between the bipolar electrodes 2a and 2b increases. Therefore, in a state where a high-frequency voltage is applied to the monopolar electrode 1, when the detected resistance value exceeds the threshold value, the monopolar electrode 1 moves away from the skin surface 51, and the power supply unit 3 only needs to stop applying a high-frequency voltage to the monopolar electrode 1. From another perspective, when the monopolar electrode 1 is in contact with the skin surface 51, the bipolar electrodes 2a and 2b are also in contact with the skin surface 51, and current flows through the skin surface 51 between the bipolar electrodes 2a and 2b. Therefore, compared with the case where the monopolar electrode 1 is not in contact with the skin surface 51, when in contact with the skin surface 51, the value of the current flowing between the bipolar electrodes 2a and 2b becomes larger. Therefore, the power supply unit 3 controls the timing of applying a high-frequency voltage to the monopolar electrode 1 based on the detected current value. More specifically, when the current value exceeds the threshold value, the monopolar electrode 1 is in contact with the skin surface 51, and the power supply unit 3 can apply a high-frequency voltage to the monopolar electrode 1. In addition, when the monopolar electrode 1 separates from the skin surface 51, the value of the current flowing between the bipolar electrodes 2a and 2b becomes smaller. Therefore, in a state where a high-frequency voltage is applied to the monopolar electrode 1, when the detected current value is lower than the threshold value, the monopolar electrode 1 leaves the skin surface 51, and the power supply unit 3 only needs to stop applying a high-frequency voltage to the monopolar electrode 1. In this way, in the present embodiment, after the monopolar electrode 1 is in contact with the skin surface 51, the power supply unit 3 applies a high-frequency voltage to the monopolar electrode 1, so the safety is improved. (Third Embodiment) In the above-described second embodiment, in order to improve safety, the detection unit 31 is provided to control the timing of applying a high-frequency voltage to the monopolar electrode 1 based on the resistance value between the bipolar electrodes 2a and 2b and the current flowing between the bipolar electrodes 2a and 2b. In contrast, the detection unit 31 can also be provided for other purposes to perform control corresponding to the detection result. For example, the power supply unit 3 can also control the amplitude and / or the on / off duty ratio of the high-frequency voltage applied to the monopolar electrode 1 based on the detected resistance value. More specifically, when the resistance value is high, it is difficult for current to flow to the skin 50. Therefore, preferably, the higher the detected resistance value, the larger the amplitude and / or the higher the on / off duty ratio (lengthen the on period) of the power supply unit 3. As another example, the power supply unit 3 may also control the amplitude of the high-frequency voltage applied to the monopolar electrode 1 and / or the on / off duty ratio based on the detected current value. More specifically, when the current value is low, in order to allow a larger current to flow, it is preferable that the higher the current value detected by the power supply unit 3, the larger the amplitude and / or the higher the on / off duty ratio (lengthening the on period). In addition, in each of the above-described embodiments, as Figure 9 shown, the power supply unit 3 may also include a main power supply 71 (first power supply), an insulation circuit 72, a monopolar power supply 73 (second power supply), and a bipolar power supply 74 (third power supply). In this case, the main power supply 71 (first power supply) branches into a monopolar power supply 73 (second power supply) and a bipolar power supply 74 (third power supply). The monopolar power supply 73 (second power supply) applies a high-frequency voltage (first high-frequency voltage) to the monopolar electrode 1 using the power supplied from the main power supply 71. The bipolar power supply 74 (third power supply) applies a high-frequency voltage (second high-frequency voltage) between the bipolar electrodes 2a and 2b using the power supplied from the main power supply 71. An insulation circuit 72 is provided between the monopolar power supply 73 (second power supply) and the bipolar power supply 74 (third power supply). The insulation circuit 72 insulates the monopolar power supply 73 (second power supply) from the bipolar power supply 74 (third power supply). With such a configuration of the power supply unit 3, the high-frequency voltage (first high-frequency voltage) applied to the monopolar electrode 1 and the high-frequency voltage (second high-frequency voltage) applied between the bipolar electrodes 2a and 2b do not interfere with each other and do not disrupt the high-frequency voltages applied to the respective electrodes. Based on the above description, those skilled in the art may conceive of additional effects and various modifications of the technology related to the present invention. However, the manner of the technology related to the present invention is not limited to the above-described embodiments. For example, of course, inventions that extract only a part of each embodiment and inventions that combine multiple embodiments are also contemplated. Various additions, changes, and partial deletions can be made without departing from the conceptual ideas and gist of the technology related to the present invention derived from the content defined in the claims and its equivalents. For example, in this specification, a device (including a device depicted as one device in the drawings) described as one device (or component, the same hereinafter) may be implemented by multiple devices. Conversely, in this specification, a device described as multiple devices (including a device depicted as multiple devices in the drawings) may be implemented by one device. Alternatively, part or all of the units and functions included in a certain device may be included in other devices. In addition, not all of the matters described in this specification are essential elements. In particular, matters described in this specification but not described in the claims may be referred to as optional additional matters. It should be noted that the applicant only knows the publicly known inventions described in the documents in the "Prior Art Documents" section of this specification. The technology of the present invention does not necessarily aim to solve the technical problems in these publicly known inventions. The entire specification should be considered to identify the problems to be solved by the technology of the present invention. For example, in this specification, when there is a description indicating that a specific structure achieves a specified effect, it is also possible to solve the technical problem opposite to this specified effect. However, it is not necessary to regard such a specific structure as an essential requirement. Description of Reference Numerals 1 monopolar electrode 2a, 2a1 - 2a5, 2b, 2b1 - 2b6 bipolar electrodes 3 power supply unit 31 detection unit 50 skin 51 skin surface 52 epidermis 53 dermis 54 subcutaneous tissue 55 SMAS fascia 71 main power supply 72 insulation circuit 73 monopolar power supply 74 bipolar power supply

Claims

1. A beauty treatment device comprising: A first electrode having a non-conductive film disposed on a surface thereof, wherein the non-conductive film abuts against a skin surface of a care recipient; a second electrode, insulated from the first electrode and in contact with the skin surface of the care recipient; a third electrode, insulated from the second electrode and in contact with the skin surface of the care recipient; as well as The power supply unit applies a first high-frequency voltage to the first electrode, and applies a second high-frequency voltage between the second electrode and the third electrode.

2. The beauty treatment device according to claim 1, wherein: The power supply unit comprises: The first power source as the main power source; a second power supply for applying the first high-frequency voltage to the first electrode using the power supplied from the first power supply; a third power supply for applying the second high-frequency voltage between the second electrode and the third electrode using the power supplied from the first power supply; as well as The insulating circuit insulates the second power source from the third power source.

3. The beauty treatment device according to claim 1, wherein: At least a portion of the first electrode is located in a region sandwiched between the second electrode and the third electrode to which the second high-frequency voltage is applied.

4. The beauty treatment device according to any one of claims 1 to 3, wherein: The power supply unit applies the first high-frequency voltage to the first electrode after the first electrode comes into contact with the skin surface of the care receiver.

5. The beauty treatment device according to any one of claims 1 to 3, wherein: The power supply unit applies the first high-frequency voltage to the first electrode after the second electrode and the third electrode come into contact with the skin surface of the care receiver.

6. The beauty treatment device according to any one of claims 1 to 3, wherein: The power supply unit stops applying the first high-frequency voltage to the first electrode when the second electrode and the third electrode are away from the skin surface of the care receiver.

7. The beauty treatment device according to any one of claims 1 to 3, wherein: The beauty treatment device includes means for detecting a value of a current flowing between the second electrode and the third electrode. The power supply unit controls a timing of applying the first high-frequency voltage to the first electrode according to the current value.

8. The beauty treatment device according to any one of claims 1 to 3, wherein: The first electrode is convex toward the skin surface.

9. A cosmetic treatment method comprising the following steps: While a first high-frequency voltage is applied to a first electrode having a non-conductive film on its surface and the non-conductive film abutting against the skin surface of the person being cared for, a second high-frequency voltage is applied between a second electrode and a third electrode, the second electrode is insulated from the first electrode and abutting against the skin surface of the person being cared for, and the third electrode is insulated from the second electrode and abutting against the skin surface of the person being cared for.

10. A beauty treatment device comprising: a first heating unit configured to heat the skin of the care recipient to a predetermined temperature to a first depth; and The second heating unit is configured to heat the skin of the care receiver to the predetermined temperature to a second depth, wherein the first depth is deeper than the second depth.

11. A cosmetic treatment method, comprising: In a first step, the skin of the care recipient is heated to a predetermined temperature to a first depth; and The second step is to heat the skin of the care receiver to the predetermined temperature to a second depth, wherein the first depth is deeper than the second depth.

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