Electrode structure, treatment head and radio frequency treatment instrument

Abstract

The invention discloses an electrode structure, a treatment head and a radio frequency therapeutic apparatus, the electrode structure comprises an electrode body, a first electrode and a second electrode, the first electrode and the second electrode are distributed on the surface of the electrode body, the total area of the first electrode is consistent with the total area of the second electrode, the first electrode and the second electrode are opposite in electrical property, and the first electrode and the second electrode are opposite in electrical property. The first electrode and the second electrode are adjacent to each other and are arranged at an interval; wherein the width of the electrode located on the outer periphery is smaller than that of the electrode located on the inner periphery. According to the technical scheme, the width of the peripheral electrode is set to be smaller than that of the inner peripheral electrode, so that the cross sectional area of the peripheral electrode is increased, the difference value of the charge density of the two ends of the peripheral electrode is reduced, charges are evenly distributed on the electrodes, and the phenomenon of local overheating is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of beauty instruments, and in particular to an electrode structure, a treatment head and a radio frequency treatment instrument. Background Art

[0002] Radiofrequency therapy devices apply radiofrequency electric fields to the skin, using the thermal effect generated when the radiofrequency electric field passes through the skin tissue to promote the formation of new collagen and elastin, thereby lifting and tightening the skin. As a non-invasive technology, radiofrequency has been widely used in facial rejuvenation treatments.

[0003] Bipolar radio frequency technology is widely used in radio frequency beauty instrument products due to its safer characteristics. Since radio frequency is a high-frequency alternating current, it will cause edge effect, that is, the distribution of current in the conductor is not uniform, and there is usually significant radio frequency heating in the edge area where the positive electrode is close to the negative end and the negative electrode is close to the positive end. Traditional bipolar radio frequency beauty instruments usually set up dot matrix electrodes on the treatment surface, so that the positive and negative electrodes are arranged alternately to form a dense electric field, but because the electrodes at the edge mainly generate electric fields with the opposite-sex electrodes on one side, the charges in the edge electrodes will be concentrated at the inner end, causing the skin temperature at that location to be too high. Summary of the invention

[0004] The main purpose of the present invention is to provide an electrode structure, aiming to solve the problem of uneven charge distribution on the electrode structure.

[0005] To achieve the above-mentioned purpose, the electrode structure proposed in the present invention includes an electrode body and a first electrode and a second electrode distributed on the surface of the electrode body, the total area of ​​the first electrode is consistent with the total area of ​​the second electrode, the electrical properties of the first electrode and the second electrode are opposite, and the first electrode and the second electrode are adjacent to each other and arranged at intervals; wherein the width of the electrode located on the periphery is smaller than the width of the electrode located on the inner periphery.

[0006] Optionally, the first electrode and the second electrode are arranged alternately, the first electrode includes a first outer electrode and a first inner electrode, and the second electrode includes a second outer electrode and a second inner electrode; wherein the width of the first outer electrode is smaller than the width of the first inner electrode, the width of the second outer electrode is smaller than the width of the second inner electrode, and the width of the first outer electrode is consistent with the width of the second outer electrode, and the width of the first inner electrode is consistent with the width of the first inner electrode.

[0007] Optionally, the first electrode and the second electrode are arranged in a spiral shape, the width of the first outer electrode at the corner segment is smaller than the width of the first outer electrode at the straight segment, and the width of the first inner electrode at the corner segment is smaller than the width of the first inner electrode at the straight segment; the width of the second outer electrode at the corner segment is smaller than the width of the second outer electrode at the straight segment, and the width of the second inner electrode at the corner segment is smaller than the width of the second inner electrode at the straight segment.

[0008] Optionally, the first electrode and the second electrode are arranged in a spiral shape.

[0009] Optionally, the first electrode and the second electrode are arranged continuously.

[0010] Optionally, the first electrode and the second electrode are both arranged in segments, the segmented first electrodes are electrically connected via a first wire, and the segmented second electrodes are electrically connected via a second wire.

[0011] Optionally, the first electrode includes first sub-electrodes arranged in parallel, the second electrode includes a second sub-electrode, the second sub-electrode is arranged in parallel with the first sub-electrode, and the first sub-electrode and the second sub-electrode are adjacent to and spaced apart from each other; wherein the width of the sub-electrodes located on both sides is smaller than the width of the sub-electrode located on the inner side, and the total area of ​​the first sub-electrode is equal to the total area of ​​the second sub-electrode.

[0012] Optionally, the number of the first sub-electrodes is N, the number of the second sub-electrodes is (N+1), each first sub-electrode is arranged between two second sub-electrodes, and the width of the second sub-electrode is smaller than the width of the first sub-electrode.

[0013] Optionally, the number of the first sub-electrodes is N, the number of the second sub-electrodes is N, the first sub-electrodes and the second sub-electrodes are arranged with gaps, the width of the first sub-electrode located at the first edge is smaller than the width of the remaining first sub-electrodes, the width of the second sub-electrode located at the second edge is smaller than the width of the remaining second sub-electrodes, and the width of the first sub-electrode located at the first edge is equal to the width of the second sub-electrode located at the second edge.

[0014] Optionally, the first electrode includes a plurality of first sub-electrodes arranged in a ring shape, and the second electrode includes a plurality of second sub-electrodes arranged in a ring shape, each of the second sub-electrodes is arranged on the outer peripheral side of a first sub-electrode, and is spaced apart and concentrically arranged with the first sub-electrode, and the ring width of the plurality of sub-electrodes gradually decreases from the center of the circle to the surrounding areas.

[0015] Optionally, the electrode structure further includes an insulating layer structure, the insulating layer structure matches the shape of the first electrode and the second electrode, and the insulating layer structure covers the upper surfaces of the first electrode and the second electrode.

[0016] Optionally, the insulating layer structure includes a first insulating layer and a second insulating layer, the first insulating layer covers the upper surfaces of the first electrode and the second electrode, the second insulating layer covers the upper surface of the first insulating layer, and an opening is opened at the center of the second insulating layer.

[0017] Optionally, the electrode structure further includes a conductive layer and a temperature detection unit, wherein the conductive layer is disposed on a side of the electrode body away from the first electrode and the second electrode, and the temperature detection unit is disposed on a bottom surface of the conductive layer for detecting the temperature of the electrode.

[0018] The present invention further provides a treatment head, which comprises a shell and any one of the above-mentioned electrode structures, wherein the electrode structure is attached to the outer surface of the shell.

[0019] The present invention also proposes a radio frequency therapeutic device, which includes a treatment handle and the treatment head proposed above, wherein the treatment handle is docked with the treatment head for electrical conduction, and the treatment handle is used to transfer electrical energy to the treatment head and transfer the electrical energy through the electrode structure on the treatment head.

[0020] The first electrode and the second electrode in the technical solution can be distributed in various shapes. Regardless of the array mode, there will be some electrodes located in the periphery and some electrodes located in the inner periphery. The first electrode and / or the second electrode located in the periphery mainly generate an electric field with the adjacent opposite-sex electrode on one side, and the first electrode and / or the second electrode located in the inner periphery mainly generate an electric field with the adjacent opposite-sex electrodes on both sides. Since the inner electrode can generate an electric field with the opposite-sex electrodes on both sides, the charge in the inner electrode will be more evenly distributed at both ends, and its own edge effect is weak. Since the outer electrode mainly generates an electric field with the opposite-sex electrode on one side, the charge in the outer electrode will be concentrated on one end close to the inner electrode and flow, and the edge effect is strong. For this reason, the technical solution sets the width of the outer electrode to be smaller than the width of the inner electrode, thereby increasing the cross-sectional area of ​​the outer electrode, thereby increasing the charge density in the outer electrode, and then reducing the difference in charge density at both ends of the outer electrode (the end facing the opposite-sex electrode and the end away from the opposite-sex electrode), thereby weakening the edge effect, so that the charge is evenly distributed on the first electrode and the second electrode, avoiding the phenomenon of local overheating. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of an embodiment of an electrode structure of the present invention;

[0023] Figure 2 is a schematic diagram of the working principle of the first electrode and the second electrode;

[0024] Figure 3 A schematic diagram of the arrangement of the first electrode and the second electrode in the first embodiment of the electrode structure of the present invention;

[0025] Figure 4 A schematic diagram of the arrangement of the first electrode and the second electrode in the second embodiment of the electrode structure of the present invention;

[0026] Figure 5 A schematic diagram of the arrangement of the first electrode and the second electrode in the third embodiment of the electrode structure of the present invention;

[0027] Figure 6 It is a schematic diagram of the arrangement of the first electrode and the second electrode in the fourth embodiment of the electrode structure of the present invention;

[0028] Figure 7 A schematic diagram of the arrangement of the first electrode and the second electrode in the fifth embodiment of the electrode structure of the present invention;

[0029] Figure 8 It is a schematic diagram of the arrangement of the first electrode and the second electrode in the sixth embodiment of the electrode structure of the present invention;

[0030] Fig. 9 is a schematic structural diagram of an insulating layer structure in an embodiment of an electrode structure of the present invention;

[0031] Fig.10 A schematic diagram of the structure of the first electrode / second electrode in an embodiment of the electrode structure of the present invention;

[0032] Fig.11 It is a structural schematic diagram of an embodiment of a treatment head of the present invention;

[0033] Fig.12 It is a structural schematic diagram of an embodiment of a radio frequency therapeutic apparatus of the present invention.

[0034] Description of Figure Numbers:

[0035] Label name Label name Label name 100 Electrode structure 233 The third sub-electrode 41 First insulation layer 1 Electrode body 3 Second electrode 42 Second insulation layer 12 First circuit board 31 The second peripheral electrode 421 Opening 13 Second circuit board 32 The second inner electrode 5 Conductive layer 2 First electrode 33 The second sub-electrode 6 Temperature detection unit 21 The first peripheral electrode 331 Sub-electrode No. 7 PI film 22 The first inner electrode 332 No. 5 sub-electrode 200 Treatment head 23 The first sub-electrode 333 No. 6 sub-electrode 201 case 231 Sub-electrode No.1 334 No. 7 sub-electrode 400 Radiofrequency therapy device 232 Second sub-electrode 4 Insulation layer structure 300 Treatment handle

[0036] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0039] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0040] The present invention provides an electrode structure 100 .

[0041] Reference Figure 1 An embodiment of the electrode structure 100 includes an electrode body 1 and a first electrode 2 and a second electrode 3 distributed on the surface of the electrode body 1, the total area of ​​the first electrode 2 is consistent with the total area of ​​the second electrode 3, the electrical properties of the first electrode 2 and the second electrode 3 are opposite, and the first electrode 2 and the second electrode 3 are adjacent to each other and arranged at intervals, wherein the width of the electrode located on the periphery is smaller than the width of the electrode located on the inner periphery.

[0042] The embodiment of the present electrode structure 100 includes an electrode body 1 and a first electrode 2 and a second electrode 3 distributed on the surface of the electrode body 1, wherein the electrode body is used to provide support for the first electrode 2 and the second electrode 3. When the input ends of the first electrode 2 and the second electrode 3 are connected to high-frequency alternating current, the first electrode 2 and the second electrode 3 will repeatedly switch between the positive and negative poles. In this scheme, the first electrode 2 and the second electrode 3 are distributed on the surface of the electrode body 1, and the first electrode 2 and the second electrode 3 are spaced and arranged in parallel, which can increase the coverage area of ​​the first electrode 2 and the second electrode 3. It is not difficult to understand that when two parallel electrode sheets of equal size, close to each other, and facing each other carry equal amounts of opposite charges, a uniform electric field can be formed between them. For this reason, the total area of ​​the first electrode 2 is consistent with the total area of ​​the second electrode 3.

[0043] Figure 2 This is a schematic diagram of the principle of the RF positive electrode and RF negative electrode. Since the current tends to flow along the path of minimum impedance, there is usually significant charge accumulation in the area where the positive electrode is close to the negative end and the negative electrode is close to the positive end, forming a heating area, which can easily lead to excessively high skin temperature in some parts of the body, while the skin temperature in other parts is relatively low. For the two parallel positive and negative electrodes, the wider the width of the electrode, the more obvious the edge effect, and the narrower the width of the electrode, the weaker the edge effect.

[0044] The first electrode 2 and the second electrode 3 in the technical solution can be distributed in various shapes. No matter which array mode is used, there will be some electrodes located at the periphery and some electrodes located at the inner periphery. The first electrode 2 and / or the second electrode 3 located at the periphery mainly generate an electric field with the adjacent opposite-sex electrode on one side, and the first electrode 2 and / or the second electrode 3 located at the inner periphery mainly generate an electric field with the adjacent opposite-sex electrodes on both sides. Since the inner electrodes can generate an electric field with the opposite-sex electrodes on both sides, the charges in the inner electrodes will be more evenly distributed at both ends, and the edge effect itself is weak. Since the outer electrodes mainly generate an electric field with the opposite-sex electrodes on one side, the charges in the outer electrodes will be concentrated on one end close to the inner electrodes, and the edge effect is strong. To this end, the technical solution sets the width of the peripheral electrode to be smaller than the width of the inner electrode, thereby increasing the cross-sectional area of ​​the peripheral electrode, thereby increasing the density of the charge in the peripheral electrode, and then reducing the difference in charge density at the two ends of the peripheral electrode (the end facing the opposite electrode and the end away from the opposite electrode), thereby weakening the edge effect, so that the charge is evenly distributed on the first electrode 2 and the second electrode 3, avoiding local overheating.

[0045] In order to make the charge density in the peripheral electrode relatively uniform with the charge density in the inner electrode and avoid excessive charge density in the peripheral electrode, the width of the peripheral electrode should not be too small. Therefore, the width of the peripheral electrode is three-quarters to one-quarter of the width of the inner electrode, and the width of the peripheral electrode is preferably one-half of the width of the inner electrode.

[0046] Figure 3 The figure shows the arrangement of the first electrode 2 and the second electrode 3 according to an embodiment of the present invention. The first electrode 2 and the second electrode 3 are arranged alternately, the first electrode 2 includes a first peripheral electrode 21 and a first inner peripheral electrode 22, and the second electrode 3 includes a second peripheral electrode 31 and a second inner peripheral electrode 32, wherein the width of the first peripheral electrode 21 is smaller than the width of the first inner peripheral electrode 22, the width of the second peripheral electrode 31 is smaller than the width of the second inner peripheral electrode 32, and the width of the first peripheral electrode 21 is consistent with the width of the second peripheral electrode 31, and the width of the first inner peripheral electrode 22 is consistent with the width of the first inner peripheral electrode 22.

[0047] In this embodiment, the first electrode 2 and the second electrode 3 are arranged in a spiral shape, the first electrode 2 includes a first inner surrounding electrode 22 and a first outer peripheral electrode 21 which are continuous with each other, the second electrode 3 includes a second inner surrounding electrode 32 and a second outer peripheral electrode 31 which are continuous with each other, and the first electrode 2 and the second electrode 3 are arranged interlaced with each other. Among them, the first inner surrounding electrode 22 and the second inner surrounding electrode 32 are located in the enclosed area of ​​the first outer peripheral electrode 21 and the second outer peripheral electrode 31, then the first inner surrounding electrode 22 mainly generates an electric field with the adjacent second electrodes 3 on both sides, the second inner surrounding electrode 32 mainly generates an electric field with the adjacent first electrodes 2 on both sides, the first outer peripheral electrode 21 mainly generates an electric field with the inner second inner surrounding electrode 32, and the second outer peripheral electrode 31 mainly generates an electric field with the inner first inner surrounding electrode 22. At this time, the width of the first outer electrode 21 is smaller than the width of the first inner electrode 22, and the width of the second outer electrode 31 is smaller than the width of the second inner electrode 32, so as to reduce the difference in charge density between the two ends of the first outer electrode 21 (the end facing the second inner electrode 32 and the end away from the second inner electrode 32), and reduce the difference in charge density between the two ends of the second outer electrode 31 (the end facing the first inner electrode 22 and the end away from the first inner electrode 22), thereby weakening the edge effect. At this time, in order to ensure that the total area of ​​the first electrode 2 and the second electrode 3 is equal, the length of the first inner electrode 22 is equal to the length of the second inner electrode 32, the length of the first outer electrode 21 is equal to the length of the second outer electrode 31, and the width of the first outer electrode 21 is consistent with the width of the second outer electrode 31, and the width of the first inner electrode 22 is consistent with the width of the first inner electrode 22, so as to ensure that the area of ​​the first electrode 2 is equal to the area of ​​the second electrode 3.

[0048] Since the first electrode 2 and the second electrode 3 are arranged in a spiral shape, the first inner electrode 22 and the first outer electrode 21 both include a straight line segment and a corner segment, and the second inner electrode 32 and the second outer electrode 31 also include a straight line segment and a corner segment. It is not difficult to understand that when the current flows through the corner segment, the charge will be concentrated, which will cause the charge amount of the corner segment to be larger than the charge amount of the straight line segment. In order to make the charge density of the first electrode 2 and the second electrode 3 at the corner segment relatively uniform with the density of the straight line segment, the width of the first outer electrode 21 at the corner segment is smaller than the width of the first outer electrode 21 at the straight line segment, and the width of the first inner electrode 22 at the corner segment is smaller than the width of the first inner electrode 22 at the straight line segment. Similarly, the width of the second outer electrode 31 at the corner segment is smaller than the width of the second outer electrode 31 at the straight line segment, and the width of the second inner electrode 32 at the corner segment is smaller than the width of the second inner electrode 32 at the straight line segment. In the process of actual application, chamfers can be set at the corners so that the width at the corners is smaller than the width of the straight line segment.

[0049] In another embodiment, the first electrode 2 and the second electrode 3 are arranged in a spiral shape, that is, the first electrode 2 and the second electrode 3 are curved, the first electrode 2 forms an arc-shaped first inner electrode 22 and a first outer electrode 21, and the second electrode 3 forms an arc-shaped second inner electrode 32 and a second outer electrode 31. It should be noted that the present invention does not limit the number of circles of the first electrode 2 and the second electrode 3.

[0050] In the above embodiments, the first electrode 2 and the second electrode 3 are both arranged continuously. Of course, in some embodiments, such as Figure 4 As shown, the first electrode 2 and the second electrode 3 can be arranged in segments, that is, the first electrode 2 can be composed of several arrays of sub-electrodes, and the second electrode 3 can also be composed of several arrays of sub-electrodes. The first electrode 2 and the second electrode 3 formed by several sub-electrode arrays can be arranged in a spiral, a quasi-spiral, a linear array, a planar array or other shapes. The segmented first electrode 2 is electrically connected through a first wire (not shown), and the segmented second electrode 3 is electrically connected through a second wire (not shown).

[0051] In some embodiments of the present invention, the first electrode 2 includes first sub-electrodes 23 arranged in parallel, and the second electrode 3 includes a second sub-electrode 33, the second sub-electrode 33 is arranged in parallel with the first sub-electrode 23, and the first sub-electrode 23 is adjacent to and spaced from the second sub-electrode 33. The width of the sub-electrodes located on both sides is smaller than the width of the sub-electrode located on the inner side, and the total area of ​​the first sub-electrodes 23 is equal to the total area of ​​the second sub-electrodes 33.

[0052] exist Figure 5In the illustrated embodiment, the number of first sub-electrodes 23 is N, the number of second sub-electrodes 33 is (N+1), each first sub-electrode 23 is disposed between two second sub-electrodes 33 , and the width of the second sub-electrode 33 is smaller than that of the first sub-electrode 23 .

[0053] In this embodiment, the first sub-electrode 23 and the second sub-electrode 33 are both strip electrodes, and each first sub-electrode 23 is arranged between two second sub-electrodes 33, then the number of first sub-electrodes 23 is N, and the number of second sub-electrodes 33 is (N+1), then the second sub-electrode 33 is always located at the periphery. At this time, the width of the second sub-electrode 33 is smaller than the width of the first sub-electrode 23, thereby reducing the difference in charge density at both ends of the second sub-electrode 33 at the periphery, thereby weakening the edge effect.

[0054] Among them, N first sub-electrodes 23 are electrically connected through the first wire, and (N+1) second sub-electrodes 33 are electrically connected through the second wire. The length of each first sub-electrode 23 is equal to the length of each second sub-electrode 33. In order to ensure that the total area of ​​the first sub-electrodes 23 is equal to the total area of ​​the second sub-electrodes 33, the ratio of the width of the first sub-electrode 23 to the width of the second sub-electrode 33 is (N+1) / N. For example, there are 4 first sub-electrodes 23, 5 second sub-electrodes 33, the width of the first sub-electrode 23 is 5 mm, and the width of the second sub-electrode 33 is 4 mm.

[0055] exist Figure 6 In the illustrated embodiment, the number of first sub-electrodes 23 is N, the number of second sub-electrodes 33 is N, the first sub-electrodes 23 and the second sub-electrodes 33 are arranged in a space between each other, the width of the first sub-electrode 23 located at the first edge is smaller than the width of the other first sub-electrodes 23, the width of the second sub-electrode 33 located at the second edge is smaller than the width of the other second sub-electrodes 33, and the width of the first sub-electrode 23 located at the first edge is equal to the width of the second sub-electrode 33 located at the second edge.

[0056] In this embodiment, the first sub-electrode 23 and the second sub-electrode 33 are both strip electrodes, and the number of the first sub-electrodes 23 is the same as the number of the second sub-electrodes 33. The first sub-electrode 23 and the second sub-electrode 33 are arranged in a spaced manner, so it is inevitable that one first sub-electrode 23 is located at the first edge, and one second sub-electrode 33 is located at the second edge, and the first edge and the second edge are two opposite edges. At this time, the width of the first sub-electrode 23 located at the first edge is smaller than the width of the remaining first sub-electrodes 23, and the width of the second sub-electrode 33 located at the second edge is smaller than the width of the remaining second sub-electrodes 33, thereby reducing the edge effect of the first sub-electrode 23 and the second sub-electrode 33 at the edge. Among them, N first sub-electrodes 23 are electrically connected through the first wire, and N second sub-electrodes 33 are electrically connected through the second wire. And the width of the first sub-electrode 23 located at the first edge is equal to the width of the second sub-electrode 33 located at the second edge, and the width of the non-edge first sub-electrode 23 and the non-edge second sub-electrode 33 are equal, thereby ensuring that the total area of ​​the first sub-electrode 23 is equal to the total area of ​​the second sub-electrode 33.

[0057] exist Figure 7 In the illustrated embodiment, the first sub-electrode 23 includes a first sub-electrode 231, a second sub-electrode 232, and a third sub-electrode 233 arranged in parallel, and the second sub-electrode 33 includes a fourth sub-electrode 331 and a fifth sub-electrode 332 arranged in parallel, the fourth sub-electrode 331 is disposed between the first sub-electrode 231 and the second sub-electrode 232, and the fifth sub-electrode 332 is disposed between the second sub-electrode 232 and the third sub-electrode 233, wherein the width of the first sub-electrode 231 is equal to the width of the third sub-electrode 233, and the width of the first sub-electrode 231 is smaller than the width of the second sub-electrode 232, thereby weakening the edge effects of the first sub-electrode 231 and the third sub-electrode 233.

[0058] Furthermore, the second sub-electrode 33 also includes a sixth sub-electrode 333 and a seventh sub-electrode 334. The sixth sub-electrode 333 is arranged between the fourth sub-electrode 331 and the second sub-electrode 232, and the seventh sub-electrode 334 is arranged between the second sub-electrode 232 and the fifth sub-electrode 332, wherein the widths of the sixth sub-electrode 333 and the seventh sub-electrode 334 are equal, and the widths of the sixth sub-electrode 333 and the first sub-electrode 231 are equal.

[0059] Taking the first electrode 2 as the positive electrode (+) and the second electrode 3 as the negative electrode (-) as an example, the polarity arrangement of the first sub-electrode 231, the fourth sub-electrode 331, the sixth sub-electrode 333, the second sub-electrode 232, the seventh sub-electrode 334, the fifth sub-electrode 332 and the third sub-electrode 233 is: +, -, -, +, -, -, +. Among them, the fourth sub-electrode 331, the fifth sub-electrode 332, the sixth sub-electrode 333 and the seventh sub-electrode 334 all have one side as a like-electrode and the other side as an opposite-electrode. The charges in these electrodes will all gather at one end close to the opposite-electrode. In order to weaken the edge effect of these electrodes, their width is smaller than that of the second sub-electrode 232, and the width of the sixth sub-electrode 333 is equal to that of the seventh sub-electrode 334, and the width of the sixth sub-electrode 333 and the first sub-electrode 231 can be equal.

[0060] exist Figure 8 In the embodiment shown, the first electrode 2 includes a plurality of first sub-electrodes 23 arranged in an annular shape, and the second electrode 3 includes a plurality of second sub-electrodes 33 arranged in an annular shape. Each second sub-electrode 33 is arranged around the outer periphery of a first sub-electrode 23 and is spaced and concentric with the first sub-electrode 23. The ring widths of the plurality of sub-electrodes gradually decrease from the center of the circle to the surroundings. This ensures that the total area of ​​the first sub-electrode 23 is equal to the total area of ​​the second sub-electrode 33, thereby weakening the edge effect of the outermost sub-electrode.

[0061] In summary, the first electrodes and the second electrodes distributed in this solution cover a larger area than the point electrodes in the conventional therapeutic device, and have a higher treatment efficiency.

[0062] In a traditional radiofrequency therapeutic device, the metal electrode is in direct contact with the skin. Due to the pores on the skin, a small amount of conduction current will leak through, which can easily lead to excessive epidermal temperature, which can easily cause tingling and discomfort, and even a certain risk of burns. To this end, the electrode structure 100 of the present invention also includes an insulating layer structure 4, which matches the shape of the first electrode 2 and the second electrode 3, that is, when the first electrode 2 and the second electrode 3 are ring-shaped, the insulating layer structure 4 is ring-shaped; when the first electrode 2 and the second electrode 3 are strip-shaped, the insulating layer structure 4 is strip-shaped, and the insulating layer structure 4 covers the upper surface of the first electrode 2 and the second electrode 3, and the edge of the insulating layer structure 4 is flush with the edge of the electrode covered by it. The material of the insulating layer structure 4 can be a PI film, which is used to contact the skin surface. Since the upper surfaces of the first electrode 2 and the second electrode 3 are covered with the insulating layer structure 4, the first electrode 2 and the second electrode 3 do not directly contact the skin surface, but contact the skin through the insulating layer structure 4, and the radiofrequency energy penetrates the insulating layer structure 4 to act on the skin, thereby reducing the discomfort during use.

[0063] Further, see Fig. 9The insulating layer structure 4 includes a first insulating layer 41 and a second insulating layer 42. The first insulating layer 41 covers the upper surface of the first electrode 2 and the second electrode 3. The second insulating layer 42 covers the upper surface of the first insulating layer 41, and an opening 421 is provided at the center of the second insulating layer 42. The insulating layer structure 4 is thinner at the opening 421 and thicker at the edge. The current is less likely to penetrate where the insulating layer structure 4 is thicker, and the current is more likely to penetrate where the insulating layer structure 4 is thinner, thereby reducing the edge effect and ensuring energy uniformity.

[0064] Reference Fig.10 The electrode structure further includes a conductive layer 5 and a temperature detection unit 6. The conductive layer 5 is disposed on a side of the electrode body 1 away from the first electrode and the second electrode. The temperature detection unit 6 is disposed on the bottom surface of the conductive layer 5 for detecting the temperature of the electrode.

[0065] In addition to the positive and negative electrodes for emitting radio frequency energy, the electrode structure in the traditional radio frequency therapeutic device also needs to be integrated with a conductive layer for communicating with the treatment handle, which leads to a large size of the electrode structure and a large area of ​​the treatment head. We know that the human skin is not a completely flat surface, and it is relatively convex in places where there is bone support. If the treatment surface is too large, the electrode structure will not fit the skin well, and the treatment effect will be poor. In this electrode structure, the material of the conductive layer 5 is consistent with the material of the first electrode and the second electrode, and both are conductive materials (such as copper foil), which are used to electrically conduct with the circuit board in the treatment handle to receive the control signal sent by the treatment handle. In this technical solution, the conductive layer 5 with communication function is arranged on the side of the electrode body 1 away from the first electrode and the second electrode, which can reduce the size of the electrode structure, thereby reducing the area of ​​the treatment surface and ensuring the fit between the electrode structure and the skin.

[0066] The temperature detection unit 6 is electrically connected to the first electrode, the second electrode and the conductive layer 5 respectively, and can detect the temperatures of the first electrode, the second electrode and the conductive layer 5 simultaneously.

[0067] Furthermore, a PI film 7 may be provided between the temperature detection unit 6 and the conductive layer 5 , and the PI film 7 may insulate and protect the conductive layer 5 .

[0068] Reference Fig.11 The present invention also provides a treatment head 200, which includes a shell 201 and an electrode structure 100. The specific structure of the electrode structure 100 refers to the above embodiment. Since the treatment head 200 adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here. Among them, the electrode structure 100 is attached to the outer surface of the shell 201.

[0069] Reference Fig.12 The present invention also proposes a radiofrequency therapeutic apparatus 400, which includes a treatment handle 300 and the treatment head 200 proposed above. Since the treatment head 200 adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here. Among them, the treatment handle 300 is connected with the treatment head 200 for electrical conduction, and the treatment handle 300 is used to transfer electrical energy to the treatment head 200, and transmit electrical energy through the electrode structure 100 on the treatment head 200.

[0070] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An electrode structure, characterized in that: It includes an electrode body and a first electrode and a second electrode distributed on the surface of the electrode body, the total area of ​​the first electrode is consistent with the total area of ​​the second electrode, the electrical properties of the first electrode and the second electrode are opposite, and the first electrode and the second electrode are adjacent to each other and arranged at intervals, wherein the width of the electrode located on the periphery is smaller than the width of the electrode located on the inner periphery.

2. The electrode structure according to claim 1, characterized in that: The first electrode and the second electrode are arranged alternately, the first electrode includes a first outer electrode and a first inner electrode, and the second electrode includes a second outer electrode and a second inner electrode; Among them, the width of the first peripheral electrode is smaller than the width of the first inner peripheral electrode, the width of the second peripheral electrode is smaller than the width of the second inner peripheral electrode, and the width of the first peripheral electrode is consistent with the width of the second peripheral electrode, and the width of the first inner peripheral electrode is consistent with the width of the first inner peripheral electrode.

3. The electrode structure according to claim 2, characterized in that: The first electrode and the second electrode are arranged in a quasi-spiral shape, the width of the first peripheral electrode at the corner section is smaller than the width of the first peripheral electrode at the straight section, and the width of the first inner surrounding electrode at the corner section is smaller than the width of the first inner surrounding electrode at the straight section; The width of the second peripheral electrode at the corner segment is smaller than the width of the second peripheral electrode at the straight segment, and the width of the second inner peripheral electrode at the corner segment is smaller than the width of the second inner peripheral electrode at the straight segment.

4. The electrode structure according to claim 2, characterized in that: The first electrode and the second electrode are arranged in a spiral shape.

5. The electrode structure according to claim 2, characterized in that: The first electrode and the second electrode are both continuously arranged.

6. The electrode structure according to claim 2, characterized in that: The first electrode and the second electrode are both arranged in segments, the segmented first electrodes are electrically connected via a first wire, and the segmented second electrodes are electrically connected via a second wire.

7. The electrode structure according to claim 1, characterized in that: The first electrode includes first sub-electrodes arranged in parallel, the second electrode includes a second sub-electrode, the second sub-electrode is arranged in parallel with the first sub-electrode, and the first sub-electrode is adjacent to the second sub-electrode and is arranged at an interval; The width of the sub-electrodes on both sides is smaller than the width of the sub-electrode on the inner side, and the total area of ​​the first sub-electrodes is equal to the total area of ​​the second sub-electrodes.

8. The electrode structure according to claim 7, characterized in that: The number of the first sub-electrodes is N, the number of the second sub-electrodes is N, each of the first sub-electrodes is disposed between two of the second sub-electrodes, and the width of the second sub-electrode is smaller than the width of the first sub-electrode.

9. The electrode structure according to claim 7, characterized in that: The number of the first sub-electrodes is N, the number of the second sub-electrodes is N, the first sub-electrodes and the second sub-electrodes are arranged with gaps, the width of the first sub-electrode located at the first edge is smaller than the width of the other first sub-electrodes, the width of the second sub-electrode located at the second edge is smaller than the width of the other second sub-electrodes, and the width of the first sub-electrode located at the first edge is equal to the width of the second sub-electrode located at the second edge.

10. The electrode structure according to claim 1, characterized in that: The first electrode includes a plurality of first sub-electrodes arranged in a ring shape, and the second electrode includes a plurality of second sub-electrodes arranged in a ring shape. Each of the second sub-electrodes is arranged on the outer peripheral side of a first sub-electrode, and is spaced apart and concentrically arranged with the first sub-electrode, and the ring width of the plurality of sub-electrodes gradually decreases from the center of the circle to the surrounding areas.

11. The electrode structure according to any one of claims 1 to 10, characterized in that: The electrode structure further includes an insulating layer structure, the insulating layer structure matches the shapes of the first electrode and the second electrode, and the insulating layer structure covers the upper surfaces of the first electrode and the second electrode.

12. The electrode structure according to claim 11, characterized in that: The insulating layer structure includes a first insulating layer and a second insulating layer, the first insulating layer covers the upper surfaces of the first electrode and the second electrode, the second insulating layer covers the upper surface of the first insulating layer, and an opening is opened at the center of the second insulating layer.

13. The electrode structure according to claim 1, characterized in that: The electrode structure further comprises: A conductive layer, the conductive layer being disposed on a side of the electrode body that is away from the first electrode and the second electrode; A temperature detection unit is disposed on the bottom surface of the conductive layer and is used to detect the temperature of the electrode.

14. A treatment head, characterized in that: It comprises a shell and the electrode structure according to any one of claims 1 to 13, wherein the electrode structure is attached to the outer surface of the shell.

15. A radiofrequency therapeutic apparatus, characterized in that: It comprises a treatment handle and a treatment head as claimed in claim 14, wherein the treatment handle is docked with the treatment head for electrical conduction, and the treatment handle is used to transfer electrical energy to the treatment head and transfer the electrical energy through the electrode structure on the treatment head.

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