Tip module for skin treatment device using RF energy, skin treatment device using RF energy including tip module, and skin treatment method using RF energy

Abstract

The present invention relates to: a tip module in which electrodes are divided into a central region, an intermediate region, and an outer region, and the size of the individual electrodes can be made smallest in the outer region to make the overall current density uniform; a skin treatment device including the tip module and using RF energy; and a skin treatment method using RF energy.

Description

Tip module for a skin treatment device using RF energy, a skin treatment device using RF energy including the same, and a skin treatment method using RF energy

[0001] The present invention relates to a tip module for a skin treatment device using RF energy that can minimize edge effects and achieve optimal treatment effects, a skin treatment device using RF energy including the same, and a skin treatment method using RF energy.

[0002] Devices that deliver RF energy to tissue for therapeutic purposes have been developed in a variety of ways. Recently, devices have been developed that utilize RF energy to induce appropriate skin changes and promote tissue regeneration, resulting in skin treatment effects.

[0003] Transmitting RF energy to heat skin tissue is a widely used method. Among devices that utilize RF energy to treat skin, treatments utilizing electrodes that contact the skin surface have also been developed to alleviate pain and minimize side effects. However, using these conventional contact electrodes to deliver RF energy has raised concerns about the potential for excessive tissue damage due to the concentration of current at the electrode's edges.

[0004] The purpose of the present invention is to provide a tip module for a skin treatment device using RF energy, which can minimize side effects caused by edge effects when treating skin tissue by delivering RF energy using a conventional non-invasive electrode, a skin treatment device using RF energy including the tip module, and a skin treatment method using RF energy.

[0005] As a means of solving the above problem, a tip module for a skin treatment device using RF energy can be provided, which includes a housing having an open side, a substrate provided on the open side of the housing, and an electrode provided on an outer surface of the substrate, wherein the electrodes are divided into a center electrode, a middle electrode, and an outer electrode, the middle electrode being divided into a plurality of middle electrode segments, and the outer electrode being divided into a plurality of outer electrode segments.

[0006] Here, the electrodes of the tip module can form a spider pattern. For example, the electrodes can be divided into multiple electrodes along lines reminiscent of a spider web.

[0007] Meanwhile, when delivering RF energy to skin tissue, the current density (current / mm^2) of RF energy in the central electrode, each middle electrode segment, and each outer electrode segment can be maintained within a preset range.

[0008] Meanwhile, the area of ​​the middle electrode segment can be configured to be larger than the area of ​​the outer electrode segment.

[0009] Meanwhile, the middle electrode and the outer electrode are concentric and can be formed along round paths of different sizes.

[0010] Meanwhile, the middle electrode can be divided into middle electrode segments by a plurality of first cutting lines formed in the width direction of the circular path, and the outer electrode can be divided into outer electrode segments by a plurality of second cutting lines formed in the width direction of the circular path.

[0011] Meanwhile, the first cutting line can be formed continuously with the second cutting line.

[0012] Additionally, the first cutting line and the second cutting line can be formed radially.

[0013] Furthermore, the center electrode, the middle electrode segment, and the outer electrode segment can be configured to simultaneously deliver RF energy by an external control unit.

[0014] Meanwhile, each of the central electrode, the middle electrode segment, and the outer electrode segment can be configured to independently transmit RF energy by an external control unit.

[0015] In addition, a skin treatment device using RF energy may be provided, including a main body, an RF generation unit provided in the main body and configured to generate RF energy, a control unit provided in the main body and configured to control RF energy, a handpiece connected to the main body and configured to be gripped by a user, and a tip module detachably provided at an end of the handpiece, wherein the tip module includes a housing having one open side, a substrate provided on the open side of the housing, and an electrode provided on an outer surface of the substrate, and the electrodes are divided into a center electrode, a middle electrode, and an outer electrode, and the middle electrode is divided into a plurality of middle electrode segments, and the outer electrode is divided into a plurality of outer electrode segments.

[0016] Additionally, a method for treating skin using RF energy may be provided, including a step of contacting an RF electrode with skin tissue, a step of transmitting RF energy to the tissue through the RF electrode, and a step of heating and treating the tissue with RF energy, wherein a transmission surface for transmitting RF energy to the skin tissue is divided into a central region, an intermediate region, and an outer region, the intermediate region is divided into a plurality of intermediate region segments, the outer region is divided into a plurality of outer region segments, and the step of transmitting RF energy is performed by maintaining a current density of RF energy within a preset range in each of the central region, the intermediate region segments, and the outer region segments.

[0017] Meanwhile, the intermediate region segment may have a larger area than the outer region segment.

[0018] Additionally, the middle and outer regions can be formed along concentric, round paths of different sizes.

[0019] Meanwhile, the intermediate region can be divided into central region segments along a plurality of first cutting lines formed in the width direction of the circular path.

[0020] Additionally, the outer region can be divided into outer region segments along a plurality of second cutting lines formed in the width direction of the circular path.

[0021] Meanwhile, the first cutting line can be formed continuously with the second cutting line.

[0022] Additionally, the first cutting line and the second cutting line can be formed radially.

[0023] Meanwhile, the area of ​​the region through which a line connecting the center point of the transmission surface to the perimeter passes may be center region > middle region segment > outer region segment.

[0024] Meanwhile, the step of delivering RF energy can be performed by delivering RF energy simultaneously to the central region, the middle region segment, and the outer region segment.

[0025] Additionally, the step of delivering RF energy can be performed by independently delivering RF energy to the central region, the middle region segment, and the outer region segment.

[0026] The tip module for a skin treatment device using RF energy according to the present invention, the skin treatment device using RF energy including the same, and the skin treatment method using RF energy enable optimized skin treatment by minimizing edge effects.

[0027] FIG. 1 is a perspective view of a tip module for a skin treatment device using RF energy according to one embodiment of the present disclosure.

[0028] Figure 2 is a partial cross-sectional view of the end of the tip module in Figure 1.

[0029] Figure 3 is a plan view showing the electrodes in the first embodiment.

[0030] Figure 4 is a drawing showing the trend of change in electrode size in the first embodiment.

[0031] Figure 5 is a conceptual diagram of heating tissue using electrodes divided into uniform sizes.

[0032] Figure 6 is a conceptual diagram of heating a tissue using a tip module according to the present disclosure.

[0033] Figure 7 is a perspective view of a treatment device using RF energy, which is a second embodiment of the present disclosure.

[0034] Figure 8 is a flowchart of a skin treatment method using RF energy, which is the third embodiment of the present disclosure.

[0035] Figure 9 is a flowchart illustrating each step in detail in the third embodiment.

[0036] Fig. 10 is a diagram illustrating the concept of an energy transfer area according to the third embodiment.

[0037] Figure 11 is a flowchart according to a modified example of the third embodiment.

[0038] Hereinafter, a tip module for a skin treatment device using RF energy, a skin treatment device including the same, and a skin treatment method using RF energy according to embodiments of the present invention will be described in detail with reference to the attached drawings. In addition, the names of each component in the description of the embodiments below may be referred to by different names in the art. However, if there is functional similarity and identity between them, even if a modified embodiment is adopted, it can be viewed as an equivalent configuration. In addition, the symbols added to each component are described for the convenience of explanation. However, the contents depicted in the drawings in which these symbols are described do not limit each component to the scope within the drawings. Similarly, even if an embodiment with some modifications to the configuration in the drawings is adopted, it can be viewed as an equivalent configuration if there is functional similarity and identity. In addition, if it is recognized as a component that should be included naturally in light of the general level of a technician in the relevant technical field, a description thereof will be omitted.

[0039] In the present disclosure, treatment is explained on the premise that it means heating skin tissue to improve wrinkles, tone and textural changes, scars and acne scarring, sagging mucosa, overall rejuvenation, hyperhidrosis, laxity, lifting, tightening, fat reduction, etc.

[0040] FIG. 1 is a perspective view of a tip module for a skin treatment device using RF energy according to one embodiment of the present disclosure, FIG. 2 is a partial cross-sectional view of the tip module in FIG. 1 with an end portion cut away, and FIG. 3 is a plan view showing an electrode in the first embodiment.

[0041] Referring to FIG. 1, a tip module (1000) for a skin treatment device using RF energy according to one embodiment of the present disclosure may include a housing (1100), a connecting portion (1500), a substrate (1200), and an electrode.

[0042] The housing (1100) is configured to allow the electrode and substrate (1200) to be fixed thereto. The housing (1100) has a space provided on the inside and may be open on one side. A connection part (1500) may be provided at the rear of the housing (1100). The connection part (1500) may be configured to be detachably attached to a handpiece of a treatment device using RF energy, which will be described later. The connection part (1500) may be mechanically fastened to the handpiece, as well as electrically connected to the handpiece.

[0043] The substrate (1200) is configured to be equipped with a circuit for transmitting RF energy to a plurality of electrodes. Furthermore, the substrate (1200) serves as a base on which the electrodes can be fixed. Meanwhile, although not shown, a plurality of sensors, for example, temperature sensors, may be equipped on the substrate (1200) to measure temperature. Each electrode may be connected to the rear surface of the substrate (1200) through a conductive portion (1400) penetrating the substrate (1200).

[0044] The electrodes may be configured in multiple pieces, configured to be in contact with the skin, and configured to transmit RF energy to the skin. The electrodes may be configured to be capacitively coupled to the skin so as to heat a deep portion of the skin by the RF energy.

[0045] The electrode is provided on the end of the tip module (1000) and may be provided on an open side of the housing (1100). The electrode may be positioned within a predetermined area at the end of the tip module (1000).

[0046] Referring to FIG. 3, in the first embodiment according to the present disclosure, the tip module (1000) may have electrodes arranged in divided areas. An energy transmission area is defined at the end of the tip module (1000), and the energy transmission area may be defined as an area where RF energy is transmitted by the center electrode (1310), the middle electrode (1320), and the outer electrode (1330).

[0047] The central electrode (1310) is positioned at the central portion of the contact surface where the tip module (1000) comes into contact with the skin. The outer electrode (1330) is provided at the outer boundary of the contact surface of the tip module (1000). The middle electrode (1320) may be provided between the central electrode (1310) and the outer electrode (1330).

[0048] That is, on a plane, the middle electrode (1320) can be formed with a predetermined width along a rounded path that follows the perimeter of the center electrode (1310). In addition, the outer electrode (1330) can be formed with a predetermined width along a rounded path that follows the perimeter of the middle electrode (1320).

[0049] That is, the middle electrode (1320) and the outer electrode (1330) can be formed into a circular path with different radii while being concentric.

[0050] A circular path can generally follow a rounded rectangle with rounded edges on the plane. However, this is only an example, and if the curvature of the edges on the plane increases, it can become a stadium path.

[0051] The middle electrode (1320) can be divided into a plurality of middle electrode segments (1321) by a plurality of first cutting lines (L1) along the width direction. In addition, the outer electrode (1330) can be divided into a plurality of outer electrode segments (1331) by a plurality of second cutting lines (L2) along the width direction.

[0052] Here, the first cutting line (L1) and the second cutting line (L2) may be curved. In addition, the first cutting line (L1) and the second cutting line (L2) may be formed continuously. For example, the first cutting line (L1) and the second cutting line (L2) may be formed along a path of a sinusoidal wave. In addition, the first cutting line (L1) and the second cutting line (L2) may be repeatedly formed at predetermined intervals along a circular path. As a result, the first cutting line (L1) and the second cutting line (L2) may appear radially with the center electrode (1310) as the center on the contact surface.

[0053] The first cutting line (L1) and the second cutting line (L2) may be the interval between the middle electrode segments (1321) or between the outer electrode segments (1331). In addition, an insulator may be provided along the first cutting line (L1) and the second cutting line (L2).

[0054] As described above, each of the middle electrode segment (1321) and the outer electrode segment (1331) is divided along the first cutting line (L1) or the second cutting line (L2) and a rounded path. Accordingly, the shape of each of the middle electrode segment (1321) and the outer electrode segment (1331) may include at least one curved line.

[0055] Figure 4 is a drawing showing the trend of change in electrode size in the first embodiment.

[0056] Referring to Fig. 4, the sizes of the electrodes may appear differently in the energy transfer area. To explain the trend of electrode size change according to location, a virtual line can be defined. For example, if a line connecting the center to the periphery at the contact surface is defined (D1, D2, D3), and the sizes of the electrodes through which this line passes are examined, the center electrode (1310) is the largest, followed by the middle electrode segment (1321), and then the outer electrode segment (1331).

[0057] That is, the size of the electrode can become smaller as it goes from the center to the periphery.

[0058] Meanwhile, the total area of ​​the separated electrodes may be the middle electrode (1320) > the outer electrode (1330). That is, the total area of ​​the middle electrode segment (1321) on the contact surface may be larger than the total area of ​​the outer electrode segment (1331).

[0059] As described above, the middle electrode (1320) is divided into middle electrode segments (1321), and the outer electrode (1330) is divided into outer electrode segments (1331). Therefore, regardless of the direction from the center of the contact surface, for example, along the direction toward d1, d2, or d3, the size of the electrodes becomes center electrode (1310) > middle electrode (1320) > outer electrode (1330).

[0060] Hereinafter, with reference to FIGS. 5 and 6, a heating region will be described when transmitting RF energy using the first embodiment according to the present disclosure.

[0061] Figure 5 is a conceptual diagram of heating tissue using electrodes segmented into uniform sizes. The electrodes illustrated in Figure 5 can be considered conventional technology, and RF energy can be delivered by contacting the skin with electrodes segmented into uniform sizes. As a result, deep tissue can be heated by RF energy. However, the area corresponding to the edge experiences excessive current flow due to edge effect, resulting in an enlarged heating area. Even if this RF energy delivery trend is maintained for several to tens of μs, the skin can suffer irreversible, excessive damage.

[0062] Figure 6 is a conceptual diagram of heating a tissue using a tip module (1000) according to the present disclosure.

[0063] Referring to FIG. 6, when transmitting RF energy using the tip module (1000) according to the present disclosure, the central electrode (1310) transmits RF energy to a large area, then the middle electrode segment (1321) transmits RF energy, and further, the outer electrode segments (1331) transmit RF energy. As described above, the area of ​​the electrodes is determined as central electrode (1310) > middle electrode segment (1321) > outer electrode segment (1331). Since each electrode capacitively couples with the skin tissue, the amount of current due to RF energy may vary depending on the area of ​​the electrode. That is, the larger the area of ​​the electrode, the lower the current due to RF energy. Therefore, the electrode in the central part can be configured as the largest, and the outer electrode segment (1331), where the current is concentrated due to the edge effect, can be configured as the smallest. In this way, by configuring the size of a single electrode to become gradually smaller toward the periphery, the current density (A / mm^2) can be maintained within a predetermined range. In other words, the area of ​​the outer electrode segment (1331) is configured to be small so that the amount of current within the tissue in contact with the edge portion can be reduced, and even if an edge effect occurs, the temperature deviation of the portion (H) being heated within the tissue does not occur significantly.

[0064] Meanwhile, in Fig. 6, the configuration in which RF energy is equally applied to the center electrode (1310), the middle electrode segment (1321), and the outer electrode segment (1331) is described, but each electrode and segment can be modified to a configuration in which RF energy is independently applied. The center electrode (1310), each middle electrode segment (1321), and each outer electrode segment (1331) can independently control RF energy by the control unit. For example, the control unit can control the power or time of the RF energy applied to the center electrode (1310) and each segment (1321, 1331).

[0065] Hereinafter, a treatment device using RF energy according to the second embodiment of the present disclosure will be described with reference to FIG. 7.

[0066] Figure 7 is a perspective view of a treatment device using RF energy, which is a second embodiment of the present disclosure.

[0067] Referring to FIG. 3, a skin treatment device using RF energy having a function of preventing duplicate treatment according to one embodiment of the present invention may be configured to include a main body (100), a handpiece (200) that a user can hold and perform treatment, a connecting portion (400) that connects the main body (100) and the handpiece, and a tip module that is detachably configured at the end of the handpiece.

[0068] The main body (100) may be equipped with an RF generator, an RF control unit, and a control unit (not shown). As described above, the control unit generates a control input for controlling the RF generator based on the sensing value input from the sensor unit. At this time, the frequency of the RF energy may be adjusted according to the patient's constitution, treatment purpose, treatment area, etc.

[0069] On the outer surface of the main body (100), a power on / off switch (110), a frequency control lever (120) that can control the frequency of RF energy generated from the RF generator, and a touch screen (130) that displays various information including the operation details of the treatment device, allows the user to input commands, and displays treatment information may be installed.

[0070] The handpiece (200) is connected to the main body by a connecting portion (400). The handpiece (200) is configured to be held and used by a user. A tip module may be provided at the distal end of the handpiece (200). The user can deliver RF energy to the tissue by bringing the tip into close contact with the patient's skin and manipulating the handpiece. A display portion (250) may be provided at one end of the handpiece so that information related to treatment or device operation can be displayed when the user holds and manipulates the handpiece.

[0071] The handpiece (200) transmits RF energy generated from the RF generator of the main body through the connection portion (400) to a plurality of electrodes provided at the end of the tip module. In addition, it is configured to measure the temperature when RF energy is transmitted to the tissue from a plurality of temperature sensors provided in the tip module and transmit it to the control portion. The user can perform an input to transmit RF energy by bringing the tip module of the handpiece (200) into close contact with the skin. After the RF energy is transmitted to the skin tissue according to the user's input, the user moves the position of the handpiece and then performs an input to transmit RF energy to the tissue again. The user can repeat this process several to hundreds of times to perform treatment on a large area of ​​tissue, such as the entire face.

[0072] Meanwhile, the present embodiment may include a tip module described with reference to FIGS. 1 to 6. In addition, in the present embodiment, the user may replace the tip module as needed.

[0073] Hereinafter, a skin treatment method using RF energy, which is the third embodiment of the present disclosure, will be described with reference to FIGS. 8 to 10.

[0074] Figure 8 is a flowchart of a skin treatment method using RF energy, which is the third embodiment of the present disclosure.

[0075] A skin treatment method using RF energy according to a third embodiment of the present disclosure may be configured to include a step (S100) of contacting an RF electrode with skin tissue, a step (S200) of transmitting RF energy to the tissue through the RF electrode, and a step (S300) of heating and treating the tissue with the RF energy.

[0076] The step of bringing the electrode into contact with the skin tissue (S100) is a step of bringing the end of the handpiece on which the electrodes are arranged into contact with the affected area.

[0077] The step (S200) of transmitting RF energy to the tissue through the RF electrode can be performed by the electrode provided in the tip module described in the first embodiment described above.

[0078] The step (S300) of heating tissue with RF energy for treatment corresponds to the step of heating the skin when RF energy is delivered using the tip module of the first embodiment. At this time, the area on the plane where RF energy is delivered can be defined as the "transmission surface" of the energy. The transmission surface can be divided into a central area, an outer area, and a middle area.

[0079] The middle region can be formed along a circular path with a predetermined width around the central region. The outer region can be formed along a circular path with a predetermined width around the central region. That is, the middle region and the outer region can be formed along circular paths that are concentric with the central region, but have different sizes.

[0080] The intermediate region can be divided into a plurality of intermediate region segments along a rounded path. The intermediate region can be divided by a plurality of first cutting lines formed in the width direction of the circular path. The outer region can be divided into a plurality of outer region segments along the circular path. The outer region can be divided by a plurality of second cutting lines. The first and second cutting lines can be formed radially on the transmission surface, and can also be formed continuously with each other.

[0081] At this time, since the central region is divided into intermediate region segments by a plurality of first cutting lines formed in the width direction of the circular path, the central region can have a larger area than the intermediate region segments. In addition, the intermediate region segments can have a larger area than the outer region segments.

[0082] And the sum of the areas of the intermediate region segments can be greater than the sum of the areas of the outer region segments.

[0083] In other words, the central region can be defined as the region where RF energy is delivered by the central electrode of the tip module, the middle region segment by the middle electrode segment, and the outer region segment by the outer electrode segment. In addition, the size of each region and region segment can follow the size of the central electrode and segments provided on the electrode.

[0084] In this way, the edge effect can be minimized by dividing the RF energy transmission surface and forming the outer region segment as small as possible.

[0085] In addition, according to the third embodiment of the present invention, the current density (A / mm^2) can be maintained within a constant range in the central region, the middle region, and the outer region, thereby enabling uniform heating and ultimately uniform treatment of the tissue.

[0086] Figure 9 is a flowchart illustrating each step in detail in the third embodiment.

[0087] Referring to FIG. 9, the third embodiment may further include an impedance matching step (S110) between the RF treatment device and the skin tissue after performing the step (S100) of contacting the RF electrode with the skin tissue. The RF electrode and the skin tissue may be capacitively coupled, and impedance matching may be performed to increase heating efficiency.

[0088] Additionally, in the third embodiment, the step of transmitting RF can be performed (S210) by simultaneously transmitting RF energy to the central region, the middle region segment, and the outer region segment. That is, RF energy can be simultaneously applied to each segmented region to heat them simultaneously. In this case, too, strong current flow due to RF energy can be prevented in the outer region.

[0089] Fig. 10 is a diagram illustrating the concept of an energy transfer area according to the third embodiment.

[0090] Referring to FIG. 10, RF energy can be delivered into the tissue (T) through a central region (2100), an intermediate region (2200), and an outer region (2300) on the surface of the skin tissue. At this time, RF energy can be delivered to the intermediate region through a plurality of intermediate region segments. Additionally, RF energy can be delivered to the outer region through a plurality of outer region segments. The region that is heated (H) within the tissue can vary depending on the frequency of the RF energy. For example, the skin tissue can be composed of the Epidermis, Dermis (Papillary dermis, Reticular dermis), Hypodermis, and fat layer from the surface, and the frequency can be changed to control the depth of heating. Even if the frequency of the RF energy is adjusted, the edge effect can be minimized according to the present disclosure, thereby preventing excessive damage to the tissue and achieving an optimal therapeutic effect.

[0091] Figure 11 is a flowchart according to a modified example of the third embodiment.

[0092] Referring to FIG. 11, in the third embodiment, the step of transmitting RF can independently transmit RF energy to the central region, the middle region segment, and the outer region segment (S220). That is, contrary to the example described in FIG. 9, RF energy can be independently transmitted to each region. In this case, the power and time of the RF energy applied to the central region, the middle region segment, and the outer region segment can be independently controlled, thereby enabling precise control in terms of the total transmitted energy. Accordingly, the heated portion within the tissue can be uniformly heated, and control, such as reducing the power of the RF energy applied to the outer region segment in consideration of the occurrence of the edge effect, can be performed.

[0093] As described above, the tip module for a skin treatment device using RF energy and the skin treatment method using RF energy according to the present disclosure can minimize edge effects by the shape of the electrode in a capacitively coupled state, thereby preventing excessive damage to skin tissue and enabling optimized skin treatment.

Claims

1. Housing with one side open; A substrate provided on one open side of the housing; and It includes an electrode provided on the outer surface of the above substrate, The above electrodes are, It is divided into a center electrode, a middle electrode, and an outer electrode. The above intermediate electrode is divided into a plurality of intermediate electrode segments, The above outer electrode is a tip module for a skin treatment device using RF energy, which is divided into a plurality of outer electrode segments.

2. In paragraph 1, A tip module for a skin treatment device using RF energy, wherein the current density (current / mm^2) of the RF energy is maintained within a preset range in the central electrode, each of the middle electrode segments, and each of the outer electrode segments when transmitting RF energy to skin tissue.

3. In paragraph 2, A tip module for a skin treatment device using RF energy, wherein the area of ​​the middle electrode segment is configured to be larger than the area of ​​the outer electrode segment.

4. In paragraph 3, A tip module for a skin treatment device using RF energy, wherein the sum total of the areas of the above intermediate electrode segments is larger than the sum total of the areas of the above outer electrode segments.

5. In paragraph 3, A tip module for a skin treatment device using RF energy, wherein the middle electrode and the outer electrode are concentric and formed along round paths of different sizes.

6. In paragraph 5, The above intermediate electrode is divided into intermediate electrode segments by a plurality of first cutting lines formed in the width direction of the circular path, A tip module for a skin treatment device using RF energy, wherein the outer electrode is divided into outer electrode segments by a plurality of second cutting lines formed in the width direction of the circular path.

7. In paragraph 6, A tip module for a skin treatment device using RF energy, wherein the first cutting line is formed continuously with the second cutting line.

8. In paragraph 7, A tip module for a skin treatment device using RF energy, wherein the first cutting line and the second cutting line are formed radially.

9. In paragraph 7, A tip module for a skin treatment device using RF energy, wherein the central electrode, the middle electrode segment, and the outer electrode segment are configured to simultaneously transmit the RF energy by an external control unit.

10. In paragraph 7, A tip module for a skin treatment device using RF energy, wherein each of the center electrode, the middle electrode segment, and the outer electrode segment is configured so that the RF energy can be independently transmitted by an external control unit.

11. Main body; An RF generating unit provided in the above main body and configured to generate RF energy; A control unit provided in the above main body and configured to control the RF energy; A handpiece connected to the above main body and configured to be gripped by a user; and It includes a tip module that is detachably provided at the end of the above handpiece, The above tip module Housing with one open end; A substrate provided on one open side of the housing; and It includes an electrode provided on the outer surface of the above substrate, The above electrodes are, It is divided into a center electrode, a middle electrode, and an outer electrode. The above intermediate electrode is divided into a plurality of intermediate electrode segments, The above outer electrode is a skin treatment device using RF energy divided into a plurality of outer electrode segments.

12. Step of contacting the RF electrode with the skin tissue; A step of delivering RF energy to the tissue through the RF electrode; and A step of treating tissue by heating it with the above RF energy is included. The transmission surface for delivering the RF energy to the skin tissue is divided into a central region, an intermediate region, and an outer region. The above intermediate region is divided into multiple intermediate region segments, The above outer region is divided into multiple outer region segments, A skin treatment method using RF energy, wherein the step of delivering the RF energy is performed by maintaining the current density of the RF energy within a preset range in each of the central region, the middle region segment, and the outer region segment.

13. In paragraph 12, A skin treatment method using RF energy, wherein the above intermediate region segment has a larger area than the above outer region segment.

14. In paragraph 13, A skin treatment method using RF energy, wherein the sum total of the areas of the above intermediate region segments is larger than the sum total of the areas of the above outer region segments.

15. In paragraph 13, A skin treatment method using RF energy, wherein the above intermediate region and the above outer region are formed along concentric and different-sized round paths.

16. In paragraph 15, A skin treatment method using RF energy, wherein the intermediate region is divided into central region segments along a plurality of first cutting lines formed in the width direction of the circular path.

17. In paragraph 16, A skin treatment method using RF energy, wherein the outer region is divided into outer region segments along a plurality of second cutting lines formed in the width direction of the circular path.

18. In paragraph 17, A skin treatment method using RF energy, wherein the first cutting line is formed continuously with the second cutting line.

19. In paragraph 17, A skin treatment method using RF energy, wherein the first cutting line and the second cutting line are formed radially.

20. In paragraph 19, A skin treatment method using RF energy, wherein the area of ​​a region through which a line connecting the circumference from the center point of the above transmission surface passes is the center region > the middle region segment > the outer region segment.

21. In paragraph 19, The step of transmitting the RF energy is: A skin treatment method using RF energy, which is performed by simultaneously delivering RF energy to the central region, the middle region segment, and the outer region segment.

22. In paragraph 19, The step of transmitting the RF energy is: A skin treatment method using RF energy, which is performed by independently delivering the RF energy to the central region, the middle region segment, and the outer region segment.

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