Ion electroosmosis patch for topical skin

Abstract

The utility model provides an ion electroosmosis patch for local skin, which comprises a substrate, a first electrode, a separation belt, a second electrode and a wire unit, and is characterized in that the flexible substrate is provided with a main body part and an interface part which are integrally formed; the substrate is provided with a first electrode surface opposite to the facial skin and a second electrode surface facing the facial skin; one first electrode is printed on the surface of the first electrode surface; the second electrode and the first electrode are separated by the separation belt; the interface part is positioned on one side, far away from the separation strip, of the second electrode; the second electrode is provided with a connecting end; the first hollowed-out part is filled with a conductive material and serves as a negative electrode contact, the negative electrode contact is connected with the second electrode, and the positive electrode contact and the negative electrode contact are both located on the first electrode face of the substrate. The utility model has the technical effects that the design is reasonable, and long-time and high-dose key nursing can be conveniently carried out on a part needing key nursing.

Description

Technical Field

[0001] The utility model belongs to the technical field of iontophoresis, and particularly relates to an iontophoresis patch for local skin. Background Art

[0002] Electroporation is a process of forming temporary and reversible hydrophilic pores in lipid bilayers such as cell membranes by using instantaneous high-voltage pulsed electric fields to increase the permeability of cells and tissue membranes. Iontophoresis is a physical process in which an ion current diffuses directionally in a medium under the drive of an electric field force. By applying a fluid containing a charged active ingredient to the skin and covering the fluid with an electrode sheet of an iontophoresis device, while making another electrode sheet contact another skin position of the body, the charged active ingredient is driven to rapidly penetrate into the skin under the energized state by using the principle of like charges repelling each other, thereby achieving the purpose of transdermal drug delivery in the medical field or the purpose of skin care in the beauty field. However, iontophoresis introduction devices usually use a device with a handle to move around on the skin surface, resulting in low introduction efficiency and inconvenient operation.

[0003] In recent years, beauty instrument products and technologies presented in the form of electronic masks have developed relatively rapidly. However, since electronic mask products cover the entire face during use, in order to take into account the beauty care of the entire face, it is difficult to provide long-term and high-dose key care for areas that need key care, such as crow's feet, nasolabial folds, forehead wrinkles, etc. Moreover, when applicable to transdermal drug delivery, it is difficult to use it alone for the area that needs drug delivery. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art, and provides a new technical solution for an iontophoresis patch for local skin.

[0005] According to the first aspect of the present application, there is provided an iontophoresis patch for local skin, and multiple iontophoresis patches can be applied to facial skin, including:

[0006] A base, the flexible base has an integrally formed main body part and an interface part, and the main body part is in a crescent shape, a willow leaf shape or other shapes suitable for the use part; the base has a first electrode surface facing away from the facial skin and a second electrode surface facing the facial skin; the interface part is provided with a first hollow.

[0007] A first electrode, one of the first electrodes is printed on the surface of the first electrode surface;

[0008] A separator and a second electrode, with a second electrode printed on the surface of the second electrode surface, and the separator separating the second electrode from the first electrode; wherein, the second electrode extends along the edge of the main body portion, and the interface portion is located on the side of the second electrode away from the separator; the second electrode has a connection end, and the connection end corresponds to the first hollowing.

[0009] A wire unit, the wire unit is printed on the first electrode surface, and the first end of the wire unit is connected to the first electrode, and the second end extends to the interface portion and serves as a positive electrode contact; a conductive material is filled in the first hollowing and serves as a negative electrode contact, and the negative electrode contact is connected to the second electrode, and both the positive electrode contact and the negative electrode contact are located on the first electrode surface of the substrate.

[0010] Optionally, the iontophoretic patch for local skin further includes a first flexible wire and a second flexible wire;

[0011] One end of the first flexible wire is connected to the positive electrode contact, and the other end is connected to the control unit;

[0012] One end of the second flexible wire is connected to the negative electrode contact, and the other end is connected to the control unit.

[0013] Optionally, the iontophoretic patch for local skin further includes a transfer PCB;

[0014] The transfer PCB is disposed on the first electrode surface; the transfer PCB is provided with a first via hole and a second via hole; the first end of the wire unit is connected to the first electrode, and the second end corresponds to the first via hole, and a conductive material is added into the first via hole to achieve electrical conduction between the first via hole and the wire unit; the second via hole corresponds to the position of the first hollowing, and a conductive material is added into the second via hole and the first hollowing to achieve electrical conduction between the second via hole and the second electrode; wherein, the transfer PCB is used to connect the control unit.

[0015] Optionally, the first electrode uses one of screen printing, inkjet printing, and thermal transfer printing to print the electrode pattern on the surface of the first electrode surface.

[0016] Optionally, the material of the substrate is at least one of chemical fiber, silk, tencel, fruit fiber, biofiber, cotton, and linen.

[0017] Optionally, each wire unit includes a bottom layer, a wire layer, a joint, and a covering layer; wherein, the material of the joint is conductive graphite or conductive carbon paste;

[0018] The bottom layer is an insulating layer, and the bottom layer is printed on the first electrode surface; the first end of the bottom layer covers the surface of the first electrode, and a second hollowing is provided at the first end of the bottom layer.

[0019] The wire layer is printed on the bottom layer, and the wire layer has a first end facing the first electrode and a second end facing the positive contact point;

[0020] The joint is printed on the bottom layer and the wire layer, and a first end portion of the joint completely or partially covers the second hollow, so that the joint is connected to the first electrode through the second hollow; a second end of the joint covers the first end of the wire layer, so that the second end of the joint is connected to the wire layer;

[0021] The covering layer is an insulating layer, and the covering layer covers the bottom layer, the joint, the wire layer and the interface portion.

[0022] Optionally, the surface areas of the bottom layer and the covering layer are larger than the surface area of the wire layer, and the bottom layer and the covering layer respectively wrap opposite sides of the wire layer to form an insulating layer of the wire unit.

[0023] Optionally, the shape of the first hollow is circular, circular, polygonal, star-shaped;

[0024] and / or, the shape of the second hollow is circular, circular, polygonal, star-shaped.

[0025] Optionally, the conductive material is conductive silver paste, conductive graphite or conductive carbon paste.

[0026] Optionally, the material of the first electrode is conductive graphite or conductive carbon paste;

[0027] and / or, the material of the second electrode is conductive graphite, conductive carbon paste or conductive silver paste.

[0028] Optionally, the main body portion is crescent-shaped or willow-leaf-shaped.

[0029] One technical effect of the present application is that:

[0030] In the embodiment of the present application, the iontophoresis patch can be used for local skin, that is, multiple iontophoresis patches can be applied to important parts of the facial skin as needed, so that it is convenient to perform long-term and high-dose key care on the parts that need key care, such as crow's feet, nasolabial folds, forehead wrinkles, etc. Moreover, when it is applicable to transdermal drug delivery, it can be used alone for the part that needs drug delivery. Description of the Drawings

[0031] Figure 1 It is a schematic structural diagram of the first electrode surface of the first base layer of an iontophoresis patch for local skin according to an embodiment of the present invention;

[0032] Figure 2 This is a schematic structural diagram of a first connection surface of a first base layer of an iontophoresis patch for local skin use according to one embodiment of the present invention;

[0033] Figure 3 This is a schematic structural diagram of a second connection surface of a second base layer of an iontophoresis patch for local skin use according to one embodiment of the present invention;

[0034] Figure 4 This is a schematic structural diagram of a second electrode surface of a second base layer of an iontophoresis patch for local skin use according to one embodiment of the present invention;

[0035] Figure 5 This is a schematic structural diagram of a conductor layer of an iontophoresis patch for local skin application according to one embodiment of the present invention;

[0036] Figure 6 This is a schematic structural diagram of the relative positions of the second electrode and the separator of an iontophoresis patch for local skin application according to one embodiment of the present invention;

[0037] Figure 7 This is a schematic diagram of the connection between the positive electrode contact and the negative electrode contact of an iontophoresis patch for local skin application according to one embodiment of the present invention;

[0038] Figure 8 This is a schematic structural diagram of a transfer PCB for an iontophoresis patch for local skin application according to one embodiment of the present invention;

[0039] Figure 9 This is a reference diagram of an iontophoresis patch for local skin application according to an embodiment of the present invention.

[0040] In the figure: 1. substrate; 101. interface part; 102. first hollowing; 11. first substrate layer; 111. first electrode surface; 112. first connection surface; 21. second substrate layer; 211. second connection surface; 212. second electrode surface; 3. first electrode; 31. positive contact; 41. bottom layer; 411. second hollowing; 42. conductor layer; 43. connector; 44. covering layer; 5. second electrode; 51. connection end; 6. separating strip; 61. first sub-separating strip; 62. second sub-separating strip; 71. first interface isolation layer; 72. second interface isolation layer; 8. flexible wire; 9. transfer PCB; 91. first via hole; 92. second via hole; 10. soldering pad. DETAILED DESCRIPTION

[0041] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present application.

[0042] Embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals designate like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary only for explaining the present application and should not be construed as limiting the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without making creative efforts fall within the scope of protection of the present application.

[0043] The terms "first", "second" in the description and claims of the present application may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more. In addition, "and / or" in the description and claims means at least one of the connected objects. The character " / " generally indicates an "or" relationship between the associated objects before and after.

[0044] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present application.

[0045] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0046] According to a first aspect of the present application, referring to Figures 1 to 9 , there is provided an iontophoresis patch for local skin, and a plurality of iontophoresis patches can be applied to facial skin, including:

[0047] Base, the flexible base has an integrally formed main body part and an interface part 101, and the main body part is crescent-shaped; the base 1 has a first electrode surface 111 facing away from the facial skin and a second electrode surface 212 facing the facial skin; the interface part 101 is provided with a first hollow 102;

[0048] First electrode 3, one said first electrode 3 is printed on the surface of the first electrode surface 111;

[0049] Separation band 6 and second electrode 5, and one second electrode 5 is printed on the surface of the second electrode surface 212, the separation band 6 separates the second electrode 5 and the first electrode 3; wherein, the second electrode 5 extends along the edge of the main body part, and the interface part 101 is located on the side of the second electrode 5 away from the separation band 6; the second electrode 5 has a connection end 51, and the connection end 51 corresponds to the first hollow 102;

[0050] Wire unit, the wire unit is printed on the first electrode surface 111, and the first end of the wire unit is connected to the first electrode 3, and the second end extends to the interface part 101 and serves as a positive electrode contact 31; a conductive material is filled in the first hollow 102 and serves as a negative electrode contact, and the negative electrode contact is connected to the second electrode 5, and both the positive electrode contact 31 and the negative electrode contact are located on the first electrode surface 111 of the base 1.

[0051] In the embodiment of the present application, the iontophoresis patch can be used for local skin, that is, multiple iontophoresis patches can be applied to important parts of the facial skin as needed, so that it is convenient to perform long-term and high-dose key care on the parts that need key care, such as crow's feet, nasolabial folds, forehead wrinkles, etc. Moreover, when it is applicable to transdermal drug delivery, it can be used alone for the part that needs drug delivery.

[0052] Furthermore, the positive electrode contact 31 of the first electrode 3 and the negative electrode contact of the second electrode 5 distributed on both sides of the iontophoresis patch are concentrated on one side of the iontophoresis patch, which is convenient for connection with the control unit and effectively avoids poor connection. Moreover, the base 1 is flexible and can be made of flexible materials such as non-woven fabric or fabric, which can not only adsorb more beauty essence or medical drugs, but also fit the face better.

[0053] Optionally, referring to Figure 7 , the iontophoresis patch for local skin also has a flexible wire 8, and the flexible wire 8 includes a first flexible wire and a second flexible wire;

[0054] One end of the first flexible wire is connected to the positive electrode contact 31, and the other end is connected to the control unit;

[0055] One end of the second flexible wire is connected to the negative electrode contact (i.e., the connection end 51 of the second electrode), and the other end is connected to the control unit.

[0056] In the above embodiment, the connection modes of the first electrode 3 and the second electrode 5 to the control unit are relatively simple, and the connection wires are relatively soft, which helps to ensure the comfort of using the iontophoresis patch.

[0057] Optionally, the iontophoresis patch for local skin further includes a transfer PCB 9;

[0058] The transfer PCB 9 is disposed on the first electrode surface 111; a first via 91 and a second via 92 are disposed on the transfer PCB 9; a first end of the wire unit is connected to the first electrode 3, and a second end corresponds to the first via 91, and a conductive material is added into the first via 91 to realize electrical conduction between the first via 91 and the wire unit; the second via 92 corresponds to the position of the first hollow 102, and a conductive material is added into the second via 92 and the first hollow 102 to realize electrical conduction between the second via 92 and the second electrode 5; wherein, the transfer PCB 9 is used to connect the control unit.

[0059] In the above embodiment, the first electrode 3 and the second electrode 5 are connected to the control unit through the transfer PCB 9, and the connection mode is relatively simple.

[0060] Optionally, the first electrode 3 adopts one of screen printing, inkjet printing, and thermal transfer printing to print the electrode pattern on the surface of the first electrode surface 111. Preferably, the printing method of the first electrode 3 is screen printing;

[0061] In the above embodiment, the manufacturing method of the first electrode 3 is relatively simple, which helps to significantly improve the manufacturing efficiency of the iontophoresis patch.

[0062] Optionally, the material of the substrate 1 is at least one of chemical fiber, silk, tencel, fruit fiber, biologic fiber, cotton, and linen.

[0063] In the above embodiment, the material of the substrate 1 is relatively reasonable, which helps the substrate 1 to adsorb beauty essence or medical drugs, and at the same time, fits the face better.

[0064] Optionally, each wire unit includes a bottom layer 41, a wire layer 42, a joint 43, and a covering layer 44; wherein, the material of the joint 43 is conductive graphite or conductive carbon paste;

[0065] The bottom layer 41 is an insulating layer, and the bottom layer 41 is printed on the first electrode surface 111; a first end of the bottom layer 41 covers the surface of the first electrode 3, and a second hollow 411 is provided at the first end of the bottom layer 41;

[0066] The wire layer 42 is printed on the bottom layer 41. The wire layer 42 has a first end facing the first electrode 3 and a second end facing the positive electrode contact 31.

[0067] The joint 43 is printed on the bottom layer 41 and the wire layer 42. The first end of the joint 43 partially or completely covers the second hollow 411, so that the joint 43 is connected to the first electrode 3 through the second hollow 411. The second end of the joint 43 covers the first end of the wire layer 42, so that the second end of the joint 43 is connected to the wire layer 42.

[0068] The covering layer 44 is an insulating layer. The covering layer 44 covers the bottom layer 41, the joint 43, the wire layer 42 and the interface portion 101.

[0069] In the above embodiment, the wire layer 42 and the first electrode 3 are connected by the joint 43 made of conductive graphite or conductive carbon paste, which can effectively prevent the connection between the wire layer 42 and the first electrode 3 from being exposed, and prevent oxidation and electrolysis reactions caused by contamination with beauty essence or medicine liquid, thereby effectively avoiding contamination of the beauty essence or medicine liquid. Moreover, the wire layer 42 is insulated and wrapped by the bottom layer 41 and the covering layer 44, and the electric energy is directly conducted to the middle of the first electrode 3. The electric energy diffuses outward from the middle of the first electrode 3, and the electric energy is relatively uniform, which can prevent the edge parts of the wire layer 42 and the first electrode 3 from being connected, and avoid the situation that the electric energy is strong at the proximal end close to the power supply and gradually attenuates at the distal end, resulting in uneven distribution of electric energy.

[0070] Furthermore, through the bottom layer 41 and the covering layer 44, the flexible PCB and the flexible wire 8 containing metal conductors are wrapped to prevent oxidation and electrolysis reactions after the metal conductors are contaminated with beauty essence or medicine liquid. At the same time, through the bottom layer 41 and the covering layer 44, the connection contacts of the first electrode 3, the connection contacts of the second electrode 5 and the conductors are wrapped to form a physical separation, preventing short circuits from occurring between the connection contacts of the first electrode 3, the connection contacts of the second electrode 5 and the conductors due to contamination with beauty essence or medicine liquid.

[0071] Optionally, the surface areas of the bottom layer 41 and the covering layer 44 are larger than the surface area of the wire layer 42, and the bottom layer 41 and the covering layer 44 respectively wrap the opposite sides of the wire layer 42 to form an insulating layer of the wire unit. This helps to insulate the wire layer 42 and ensure the stability of the wire layer 42.

[0072] Optionally, the wire layer 42 and the joint 43 are integrally printed. This helps to simplify the manufacturing process of the iontophoresis patch.

[0073] Optionally, the covering layer 44 is made of at least one of polyurethane, acrylate, epoxy resin, and polyamide resin;

[0074] And / or, the material of the bottom layer 41 is at least one of polyurethane, acrylate, epoxy resin, and polyamide resin.

[0075] In the above embodiment, it helps to ensure that the cover layer 44 and the bottom layer 41 have a good insulation effect.

[0076] Optionally, the bottom layer 41 is printed on the surface of the first electrode surface 111 by screen printing, inkjet printing, or thermal transfer printing. Preferably, the bottom layer 41 is printed by thermal transfer printing.

[0077] Optionally, the conductor layer 42 is printed on the bottom layer 41 by screen printing, inkjet printing, or thermal transfer printing to print an electrode pattern; preferably, the conductor layer 42 is printed by screen printing.

[0078] For example, conductive silver paste is used to print the conductive layer 42, which effectively reduces resistance. However, when silver is exposed to a beauty serum or medical drug solution and then fed into the positive electrode, the silver conductor may undergo an electrolytic reaction, releasing silver ions, which could pose a risk to product use. Using a base layer 41 and a cover layer 44, both insulating layers, to wrap the conductive layer 42, and using a connector 43 printed with conductive graphite or conductive carbon paste to connect to the exposed first electrode 3, effectively prevents exposure of the silver conductor.

[0079] Optionally, a decorative layer may be provided on the surface of the cover layer 44, which helps to improve the aesthetics of the iontophoresis patch.

[0080] Alternatively, see Figure 8 The iontophoresis patch for local skin further comprises a plurality of pads 10 and a plurality of flexible wires 8, wherein the pads 10 correspond one to one with the flexible wires 8, and the pads 10 are connected to the control unit via the flexible wires 8;

[0081] The plurality of pads 10 are all disposed on the transfer PCB 9 , and each of the first via holes 91 and each of the second via holes 92 is connected to a pad 10 .

[0082] In the above embodiment, the stability of the connection between the first electrode 3 and the electrode and the transfer PCB 9 is significantly improved.

[0083] See also Figure 7 In other embodiments, see Figure 7 , the iontophoresis patch for facial skin further comprises a first soft wire 8 and a second soft wire 8;

[0084] One end of the first flexible wire 8 is connected to the positive electrode contact 31, and the other end is connected to the control unit.

[0085] One end of the second flexible wire 8 is connected to the negative electrode contact, and the other end is connected to the control unit. Among them, the end of the wire layer 42 away from the first electrode 3 is the positive electrode contact 31, and the connection end 51 of the second electrode 5 is the negative electrode contact.

[0086] In the above embodiment, the connection method between the first electrode 3 and the second electrode 5 and the control unit is relatively simple, and the connecting wires are relatively soft, which helps to ensure the comfort of using the iontophoresis patch.

[0087] Optionally, the shape of the first hollow 102 is one of a circle, circle, polygon, star;

[0088] and / or, the shape of the second hollow 411 is one of a circle, circle, polygon, star.

[0089] In the above embodiment, the shape of the first hollow 102 and / or the second hollow 411 is reasonably set, which helps to achieve the stability of the end electrical connection of the electrodes.

[0090] Optionally, the conductive material is conductive silver paste or conductive graphite or conductive carbon paste. This helps to achieve the conduction between the first electrode 3 and the transfer PCB 9, and also helps to achieve the conduction between the second electrode 5 and the transfer PCB 9.

[0091] Optionally, the material of the first electrode 3 is conductive graphite or conductive carbon paste;

[0092] and / or, the material of the second electrode 5 is conductive graphite or conductive carbon paste or conductive silver paste.

[0093] In the above embodiment, the resistance of the first electrode 3 and the second electrode 5 can be effectively reduced.

[0094] Optionally, the main body part is crescent-shaped or willow-leaf-shaped. The structure design of the main body part is relatively reasonable. The iontophoresis patch can be used as an eye mask, or can be applied to important parts of the facial skin according to needs. Moreover, multiple iontophoresis patches can be applied to the facial skin according to needs.

[0095] Exemplarily, the separation band 6 is printed on the surface of the second electrode surface 212 by one of screen printing, inkjet printing, and thermal transfer printing. Preferably, the printing method of the separation band 6 is thermal transfer printing.

[0096] Optionally, the transfer PCB 9 is a flexible PCB, and the transfer PCB 9 is attached to the first electrode surface 111. The flexible PCB and the soft wire 8 are connected to the control unit, and the connection is soft, not stiff, and more beautiful.

[0097] In the embodiment of the present application, the first electrode 3 is a positive electrode, and the second electrode 5 is a negative electrode, which helps to better ensure the use effect of the iontophoresis patch.

[0098] In a specific embodiment, see Figures 1 to 4 The base 1 includes a first base layer 11 and a second base layer 21, wherein the first base layer 11 faces away from the facial skin and the second base layer 21 faces the facial skin; wherein the first hollow 102 electrically connects the first base layer 11 and the second base layer 21 by adding a conductive material;

[0099] The first base layer 11 includes a first electrode surface 111 facing away from the facial skin and a first connection surface 112 facing the facial skin; a first sub-dividing strip 61 is printed on the first connection surface 112;

[0100] The second base layer 21 includes a second connection surface 211 facing away from the facial skin and a second electrode surface 212 facing the facial skin; the second connection surface 211 is printed with a second sub-dividing strip 62 corresponding to the first sub-dividing strip 61;

[0101] The first sub-dividing tape 61 and the second sub-dividing tape 62 are fixed together by heating and pressurizing to form the dividing tape 6 .

[0102] In the above embodiment, the double substrate of the first substrate layer 11 and the second substrate layer 21 can absorb more beauty essence or medical drugs, increase the capacity of the beauty essence or medical drugs between the first electrode 3 and the skin, and better ensure the beauty or medical effect.

[0103] Optionally, a first interface isolation layer 71 is provided at a position of the first connection surface 112 corresponding to the adapter PCB 9; a second interface isolation layer 72 is provided at a position of the second connection surface 211 corresponding to the adapter PCB 9;

[0104] The first hollow 102 is electrically connected to the first interface isolation layer 71 and the second interface isolation layer 72 by adding a conductive material;

[0105] The first interface isolation layer 71 and the second interface isolation layer 72 are fixed together by heating and pressurizing.

[0106] The above embodiment helps to achieve better insulation of the interface portion 101.

[0107] Optionally, the material of the first electrode 3 is conductive graphite or conductive carbon paste;

[0108] And / or, the material of the second electrode 5 is conductive graphite or conductive carbon paste or conductive silver paste.

[0109] In the above embodiment, the resistance of the first electrode 3 and the second electrode 5 can be effectively reduced.

[0110] In this embodiment, the iontophoresis patch body for local skin is crescent-shaped and can effectively cover the outer corner eye wrinkles and eye bag areas; in a specific embodiment, it can be made into two symmetric iontophoresis patches for local skin, which are used for the outer corner eye wrinkles and eye bag areas of the left and right eyes.

[0111] In other embodiments, the iontophoresis patch body for local skin can be in other shapes. For example, it can be willow-leaf-shaped to be more suitable for nasolabial folds and forehead wrinkles. The shape of the iontophoresis patch body for local skin is not limited here.

[0112] It can be understood that the above embodiments are merely exemplary embodiments adopted to illustrate the principle of the present invention. However, the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also regarded as the protection scope of the present invention.

Claims

1. An iontophoretic patch for local skin, characterized in that, Multiple iontophoresis patches can be applied to the facial skin, including: A base, the flexible base has an integrally formed main body portion and an interface portion (101); the base (1) has a first electrode surface (111) facing away from the facial skin and a second electrode surface (212) facing the facial skin; the interface portion (101) is provided with a first hollow (102); A first electrode (3), one first electrode (3) is printed on the surface of the first electrode surface (111); A separator strip (6) and a second electrode (5), and one second electrode (5) is printed on the surface of the second electrode surface (212), the separator strip (6) separates the second electrode (5) and the first electrode (3); wherein, the second electrode (5) extends along the edge of the main body portion, and the interface portion (101) is located on the side of the second electrode (5) away from the separator strip (6); the second electrode (5) has a connection end (51), and the connection end (51) corresponds to the first hollow (102); A wire unit, the wire unit is printed on the first electrode surface (111), and the first end of the wire unit is connected to the first electrode (3), the second end extends to the interface portion (101) and serves as a positive electrode contact (31); conductive material is filled in the first hollow (102) and serves as a negative electrode contact, the negative electrode contact is connected to the second electrode (5), and both the positive electrode contact (31) and the negative electrode contact are located on the first electrode surface (111) of the base (1).

2. The iontophoresis patch for local skin according to claim 1, characterized in that, It further includes a first flexible wire and a second flexible wire; One end of the first flexible wire is connected to the positive electrode contact (31), and the other end is connected to the control unit; One end of the second flexible wire is connected to the negative electrode contact, and the other end is connected to the control unit.

3. The iontophoretic patch for local skin according to claim 1, wherein It further includes a transfer PCB (9); The transfer PCB (9) is arranged on the first electrode surface (111); the transfer PCB (9) is provided with a first via hole (91) and a second via hole (92); the first end of the wire unit is connected to the first electrode (3), the second end corresponds to the first via hole (91), and conductive material is added into the first via hole (91) to realize the electrical conduction between the first via hole (91) and the wire unit; the second via hole (92) corresponds to the position of the first hollow (102), and conductive material is added into the second via hole (92) and the first hollow (102) to realize the electrical conduction between the second via hole (92) and the second electrode (5); wherein, the transfer PCB (9) is used to connect the control unit.

4. The iontophoresis patch for local skin according to claim 1, wherein The first electrode (3) is printed on the surface of the first electrode surface (111) by using one of screen printing, inkjet printing, and thermal transfer printing.

5. The iontophoresis patch for local skin according to claim 1, characterized in that, The material of the base (1) is any one of chemical fiber, silk, tencel, fruit fiber, biofiber, cotton, and hemp.

6. The iontophoretic patch for local skin according to claim 1, characterized in that, Each wire unit includes a bottom layer (41), a wire layer (42), a joint (43), and a covering layer (44); wherein, the material of the joint (43) is conductive graphite or conductive carbon paste; The underlying layer (41) is an insulating layer, and the underlying layer (41) is printed on the first electrode surface (111); the first end of the underlying layer (41) covers the surface of the first electrode (3), and a second hollow (411) is provided at the first end of the underlying layer (41); The wire layer (42) is printed on the underlying layer (41), and the wire layer (42) has a first end facing the first electrode (3) and a second end facing the positive electrode contact (31); The joint (43) is printed on the underlying layer (41) and the wire layer (42), and the first end of the joint (43) partially or completely covers the second hollow (411) so that the joint (43) is connected to the first electrode (3) through the second hollow (411); the second end of the joint (43) covers the first end of the wire layer (42) so that the second end of the joint (43) is connected to the wire layer (42); The covering layer (44) is an insulating layer, and the covering layer (44) covers the underlying layer (41), the joint (43), the wire layer (42) and the interface portion (101).

7. The iontophoretic patch for topical skin according to claim 6, characterized in that, The surface areas of the underlying layer (41) and the covering layer (44) are larger than the surface area of the wire layer (42), and the underlying layer (41) and the covering layer (44) respectively wrap the opposite sides of the wire layer (42) to form the insulating layer of the wire unit.

8. The iontophoretic patch for topical skin according to claim 7, characterized in that, The shape of the first hollow (102) is one of a circle, an ellipse, a polygon, and a star; and / or, the shape of the second hollow (411) is one of a circle, an ellipse, a polygon, and a star.

9. The iontophoretic patch for topical skin according to claim 1, characterized in that, The conductive material is conductive silver paste, conductive graphite, or conductive carbon paste.

10. The iontophoretic patch for local skin according to claim 1, characterized in that, The material of the first electrode (3) is conductive graphite or conductive carbon paste; and / or, the material of the second electrode (5) is conductive graphite, conductive carbon paste, or conductive silver paste.

11. The iontophoretic patch for local skin according to claim 1, characterized in that, The main body portion is crescent-shaped or willow-leaf-shaped.

Images