An electrode pad with a moisture absorption structure applied to human skin

Abstract

The present invention discloses an electrode pad with a hygroscopic structure for use on human skin. The electrode pad includes a support 7, an electrode 8, a water storage area 3, and a water absorption layer 2. The electrode 8 and the water storage area 3 are juxtaposedly attached to the surface of the support 7 facing the human skin 1. The first surface 9 of the water absorption layer 2 is attached to the electrode 8 and the water storage area 3, and the second surface 10 is attached to the human skin. The electrode pad of the present invention can quickly and effectively absorb sweat discharged from the human skin 1 through the water absorption layer 2, avoiding the occurrence of skin allergies, redness and swelling in the sweat area, and can be used to apply an electric field to the human skin 1 for a long time. The electrode pad of the present invention stores the collected sweat through the water storage area, so that the stored sweat does not flow back to the human skin 1, preventing the human skin 1 from being allergic and red and swollen, and the stored sweat does not flow back to the water absorption layer 9, preventing the moisture in the sweat from corroding the electrode 8, extending the service life of the electrode pad, and improving the working efficiency of the electrode pad.

Description

Technical Field

[0001] The present invention relates to the fields of medical devices and health-care instruments, and in particular to an electrode pad with a moisture-absorbing structure applied to human skin. Background Art

[0002] The application of electric fields and currents in medicine has a long history, primarily in two forms: 1) Applying a conductive electrode to the human or animal body, maintaining a certain potential difference, and then applying the electric field to the body or tissue through the conductive electrode. This application method can be applied to the surface of the human skin or inside the human body, such as in cardiac defibrillators, peripheral nerve and muscle stimulators, and tumor resection devices. 2) Radio wave sources, such as RF and microwave sources, transmit radio waves to the body through radiation or induction. In this mode, no electrical energy is conducted between the energy source and the body.

[0003] Tumor Treating Fields (TTFs) are low-intensity, medium-frequency, alternating electric fields that treat tumors by disrupting the mitotic process of tumor cells. Studies have shown that TTFs are effective in treating glioblastoma, non-small cell lung cancer, melanoma, and other tumors, prolonging patient survival with minimal side effects.

[0004] Tumor therapy involves applying an electric field to the tumor tissue area via external electrodes, which are then applied to the tumor through capacitive coupling. Tumor therapy electrodes are applied to the patient's skin for a prolonged period of treatment, typically 2-4 days. Prolonged treatment can clog sweat glands and hair follicles, and evaporated sweat can cause allergic reactions, redness, and swelling. Therefore, sweat excreted from the skin needs to be absorbed or removed to prevent adverse reactions such as allergic reactions and redness.

[0005] Invention patent CN111759359A discloses a multi-channel fiber-based sweat collection and sensing system and its preparation method. The sweat sensing system comprises a multi-layer fabric, the inner layer of which includes a multi-channel fiber-based sweat collection system and a gate electrode, and the outer layer is provided with source and drain electrodes. The sweat collection system comprises several alternating sweat transport channels and hydrophobic regions, which converge at the sweat collection region. Each sweat transport channel has several hydrophilic and hydrophobic gradient units with contact angles that gradually increase from the sweat collection region toward the outside. By manipulating the fabric structure of the hydrophilic and hydrophobic gradient units, a sweat collection system with a self-driven wicking effect is formed, allowing sweat to be directed from the outside to the sweat collection region through the hydrophilic and hydrophobic gradient units. The gate electrode and source and drain electrodes intersect at the sweat collection region and are conductive polymers with high transconductance, forming a three-dimensional nano-mesh and flower-like structure. This allows for high sensor signal amplification efficiency, thereby improving the sensitivity and detection rate of sweat detection. However, this patent is mainly used for collecting sweat and then detecting the collected sweat, but it does not disclose electrodes for applying electric fields to living bodies, nor is it used to eliminate or effectively reduce the side effects caused by long-term use of electric fields on human skin.

[0006] The contents of the background technology section are merely the technologies known to the inventors and do not necessarily represent the existing technologies in this field. Summary of the Invention

[0007] In response to one or more problems existing in the prior art, the present invention provides an electrode pad with a moisture-absorbing structure for application to human skin, characterized in that it comprises a support, an electrode, a water storage area and a water-absorbing layer, the electrode and the water storage area being attached juxtaposedly to the surface of the support facing the human skin, the first surface of the water-absorbing layer being attached to the electrode and the water storage area, and the second surface being attached to the human skin.

[0008] According to one aspect of the present invention, it further comprises a water isolation area for isolating the water storage area and the electrode.

[0009] According to one aspect of the present invention, the electrode includes a circuit layer and a dielectric layer.

[0010] According to one aspect of the present invention, the water-isolating area is a waterproof coating between the water storage area and the electrode.

[0011] According to one aspect of the present invention, the electrode is formed by connecting one or more electrode segments.

[0012] According to one aspect of the present invention, the shapes of the electrode segments include circular, square, and polygonal.

[0013] According to one aspect of the present invention, the interval between the electrode segments is at least 1 mm.

[0014] According to one aspect of the present invention, the circuit layer and the dielectric layer are connected by welding or bonding.

[0015] According to one aspect of the present invention, the dielectric constant of the dielectric layer is at least 100.

[0016] According to one aspect of the present invention, the dielectric layer is a ceramic dielectric material.

[0017] According to one aspect of the present invention, the water-absorbing layer is made of a water-absorbing material.

[0018] According to one aspect of the present invention, the water-absorbing material is a combination of one or more of sponge, open-pore foam, and gel.

[0019] According to one aspect of the present invention, at an alternating current of 200KHz, the impedance of the material with a volume of 25.4mm*25.4mm*1.0mm in the water absorbing layer is not higher than 200 ohms.

[0020] According to one aspect of the present invention, at an alternating current of 200 kHz, the impedance of the material with a volume of 25.4 mm*25.4 mm*1.0 mm in the water-absorbing layer is between 15 and 30 ohms.

[0021] According to one aspect of the present invention, the water storage area is made of water storage material.

[0022] According to one aspect of the present invention, the water storage material includes a combination of one or more of sponge, open-pore foam, and super absorbent resin.

[0023] According to one aspect of the present invention, the water absorption rate of the water storage material is not less than 100%.

[0024] According to one aspect of the present invention, the support is an elastic support

[0025] According to one aspect of the present invention, the elastic support is made of one or more of mesh fabric, woven fabric, and elastic backing.

[0026] The present invention also provides a method for preparing an electrode pad having a hygroscopic structure for use on human skin, comprising the following steps:

[0027] S1, attaching the electrodes and the water storage area juxtaposedly on the surface of the support facing the human skin;

[0028] S2, attaching the first surface of the water absorbing layer to the electrode and the water storage area, and the second surface of the water absorbing layer is used to attach to human skin.

[0029] The purpose of the present invention is to provide an electrode pad with a moisture-absorbing structure for use on human skin and a preparation method thereof, which can quickly and effectively absorb sweat discharged from the human body, avoid the occurrence of human skin allergies, redness and swelling in the sweat area, and can apply an electric field to the human skin for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0031] Figure 1 is a cross-sectional view of an electrode pad with a moisture-absorbing structure applied to human skin according to a first embodiment of the present invention;

[0032] Figure 2 is a cross-sectional view of an electrode pad having a moisture-absorbing structure and applied to human skin, including a water-isolating area according to a second embodiment of the present invention;

[0033] Figure 3 A schematic diagram showing a circuit connecting multiple electrode segments;

[0034] Figure 4 is a top view of an electrode pad having a moisture-absorbing structure applied to human skin according to a first embodiment of the present invention; and

[0035] Figure 5 FIG. 1 is a top view of an electrode pad with a moisture-absorbing structure applied to human skin according to a second embodiment of the present invention. DETAILED DESCRIPTION

[0036] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be considered as illustrative in nature and not restrictive.

[0037] In the description of the present invention, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," "clockwise," "counterclockwise," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely for the purpose of facilitating the description of the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features referred to. Thus, features designated "first" or "second" may explicitly or implicitly include one or more of the designated features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0038] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, removable, or integral connections; mechanical, electrical, or intercommunication connections; direct or indirect connections through an intermediary; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0039] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may also include the first and second features not being in direct contact but being in contact via another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or diagonally above the second feature, or may simply mean that the first feature is at a higher level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly above or diagonally above the second feature, or may simply mean that the first feature is at a lower level than the second feature.

[0040] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0041] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0042] Example 1:

[0043] Figure 1 The present invention shows an electrode pad with a hygroscopic structure for use on human skin according to the first embodiment. The electrode pad includes a support 7, an electrode 8, a water storage area 3 and a water absorption layer 2. The electrode 8 and the water storage area 3 are attached juxtaposedly on the surface of the support 7 facing the human skin 1. The first surface 9 of the water absorption layer 2 is attached to the electrode 8 and the water storage area 3, and the second surface 10 is attached to the human skin.

[0044] The electrode pad of the present invention, which has a hygroscopic structure and is applied to human skin, can quickly and effectively absorb sweat discharged from the human skin 1 through the water-absorbing layer 2, thereby preventing skin allergies, redness, and swelling in the sweat area, and can be used to apply an electric field to the human skin 1 for a long time. The electrode pad of the present invention stores the collected sweat in the water storage area, preventing the stored sweat from flowing back into the human skin 1, thereby preventing allergies and redness of the human skin 1. The electrode pad also prevents the stored sweat from flowing back into the water-absorbing layer 9, thereby preventing corrosion of the electrode 8, extending the service life of the electrode pad, and improving the working efficiency of the electrode pad.

[0045] Compared with the existing technology, the present invention has the following beneficial effects: 1. It quickly and effectively absorbs sweat discharged from the human body, avoiding the occurrence of skin allergies, redness and swelling in the sweat area. 2. It stores the collected sweat in the water storage area to prevent sweat from flowing back.

[0046] Example 2:

[0047] Figure 2 The second embodiment of the present invention shows an electrode pad with a moisture-absorbing structure for use on human skin. In addition to the structure of the first embodiment, the electrode pad of the second embodiment further includes a water-isolating area 6 for separating the water storage area 3 from the electrode 8.

[0048] The electrode pad of the present invention, which has a hygroscopic structure and is applied to human skin, can quickly and effectively absorb sweat discharged from the human body through the water-absorbing layer 2, thereby preventing the occurrence of skin allergies, redness, and swelling in the sweat area, and can be used to apply an electric field to the human skin for a long time. The electrode pad of the present invention stores the collected sweat through the water storage area, so that the stored sweat does not flow back. The water-isolating area 6 can completely isolate the sweat-rich water storage area 3 from the electrode 8, preventing the moisture in the sweat from corroding the electrode 8, thereby extending the service life of the electrode pad and improving the working efficiency of the electrode pad.

[0049] According to another embodiment of the present invention, the electrode 8 includes a circuit layer 4 and a dielectric layer 5 .

[0050] According to another embodiment of the present invention, the water-isolating area 6 is a waterproof coating between the water storage area 3 and the electrode 8. The waterproof coating is small in size, easy to manufacture, and has a good water-isolating effect.

[0051] According to another embodiment of the present invention, the electrode 8 is formed by connecting one or more electrode segments 8-1, 8-2, and 8-3 via a wire 11, and the connection method can be parallel connection, such as Figure 3 shown.

[0052] According to another embodiment of the present invention, the shapes of the electrode segments 8 - 1 , 8 - 2 , and 8 - 3 include circle, square, and polygon.

[0053] According to another embodiment of the present invention, the interval between the electrode segments 8 - 1 , 8 - 2 , and 8 - 3 is at least 1 mm.

[0054] According to another embodiment of the present invention, the circuit layer 4 and the dielectric layer 5 are connected by welding or bonding.

[0055] According to another embodiment of the present invention, the dielectric constant of the dielectric layer 5 is at least 100.

[0056] According to another embodiment of the present invention, the dielectric layer 5 is made of ceramic dielectric material.

[0057] According to another embodiment of the present invention, the water absorbing layer 2 is made of a water absorbing material.

[0058] According to another embodiment of the present invention, the water-absorbing material is a combination of one or more of sponge, open-pore foam, and gel.

[0059] According to another embodiment of the present invention, at an alternating current of 200 kHz, the impedance of the material in the water absorbing layer 2 with a volume of 25.4 mm*25.4 mm*1.0 mm is not higher than 200 ohms, preferably between 15 and 30 ohms.

[0060] According to another embodiment of the present invention, the water storage area 3 is made of water storage material.

[0061] According to another embodiment of the present invention, the water storage material includes a combination of one or more of sponge, open-pore foam, and super absorbent resin.

[0062] According to another embodiment of the present invention, the water absorption rate of the water storage material is not less than 100%.

[0063] According to another embodiment of the present invention, the support 7 is an elastic support.

[0064] According to another embodiment of the present invention, the elastic support is made of one or more of mesh fabric, woven fabric, and elastic backing.

[0065] According to another embodiment of the present invention, a method for preparing an electrode pad having a hygroscopic structure for application to human skin comprises the following steps:

[0066] S1, attaching the electrodes and the water storage area 3 juxtaposedly on the surface of the support facing the human skin;

[0067] S2, attaching the first surface of the water absorbing layer to the electrodes and the water storage area 3, and the second surface of the water absorbing layer to the human skin.

[0068] In summary, the present invention discloses an electrode pad with a hygroscopic structure for use on human skin, the electrode pad comprising a support 7, an electrode 8, a water storage area 3 and a water absorption layer 2, the electrode 8 and the water storage area 3 being juxtaposedly attached to the surface of the support 7 facing the human skin 1, the first surface 9 of the water absorption layer 2 being attached to the electrode 8 and the water storage area 3, and the second surface 10 being attached to the human skin. The electrode pad of the present invention can quickly and effectively absorb sweat discharged from the human skin 1 through the water absorption layer 2, avoiding the occurrence of skin allergies, redness and swelling in the sweat area, and can be used to apply an electric field to the human skin 1 for a long time. The electrode pad of the present invention stores the collected sweat through the water storage area, so that the stored sweat does not flow back to the human skin 1, preventing the human skin 1 from becoming allergic and red, and the stored sweat does not flow back to the water absorption layer 9, preventing the moisture in the sweat from corroding the electrode 8, extending the service life of the electrode pad, and improving the working efficiency of the electrode pad. The electrode pad of the present invention also includes a water isolation area 6 for separating the water storage area 3 and the electrode 8. The electrode pad of the present invention can completely isolate the sweat-rich water storage area 3 from the electrode 8 through the water isolation area 6, preventing moisture in sweat from corroding the electrode 8, extending the service life of the electrode pad and improving the working efficiency of the electrode pad.

[0069] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An electrode pad with a hygroscopic structure applied to human skin, characterized in that: The invention comprises a support (7), an electrode (8), a water storage area (3), a water absorption layer (2) and a water isolation area (6), wherein the electrode (8) comprises a plurality of electrode segments (8-1, 8-2, 8-3) electrically connected to each other, the electrode segments (8-1, 8-2, 8-3) comprise a circuit layer (4) and a dielectric layer (5), the water storage area (3) is made of a water storage material, the circuit layer (4) and the water storage area (3) of the electrode segments (8-1, 8-2, 8-3) are respectively attached to the support (7 ) on the surface facing the human skin (1); the first surface (9) of the water absorbing layer (2) is attached to the dielectric layer (5) and the water storage area (3) of the electrode segments (8-1, 8-2, 8-3), and the second surface (10) of the water absorbing layer (2) is attached to the human skin (1); the water-isolating area (6) is a waterproof coating arranged around each of the electrode segments (8-1, 8-2, 8-3) to separate the water storage area (3) and each of the electrode segments (8-1, 8-2, 8-3).

2. The electrode pad with a hygroscopic structure for use on human skin according to claim 1, characterized in that: The shapes of the electrode segments (8-1, 8-2, 8-3) include circular, square, and polygonal; and the intervals between the electrode segments (8-1, 8-2, 8-3) are at least 1 mm.

3. The electrode pad with a hygroscopic structure for use on human skin according to claim 1, characterized in that: The circuit layer (4) and the dielectric layer (5) are connected by welding and bonding; the dielectric constant of the dielectric layer (5) is at least 100; and the dielectric layer (5) is a ceramic dielectric material.

4. The electrode pad with a hygroscopic structure for use on human skin according to claim 1 or 2, characterized in that: The water-absorbing layer (2) is made of a water-absorbing material; the water-absorbing material is a combination of one or more of sponge, open-pore foam, and gel.

5. The electrode pad with a hygroscopic structure for use on human skin according to claim 1 or 2, characterized in that: When the alternating current is 200KHz, the impedance of the material with a volume of 25.4mm*25.4mm*1.0mm in the water absorbing layer (2) is not higher than 200 ohms; when the alternating current is 200KHz, the impedance of the material with a volume of 25.4mm*25.4mm*1.0mm in the water absorbing layer (2) is between 15 and 30 ohms.

6. The electrode pad with a hygroscopic structure for use on human skin according to claim 1 or 2, characterized in that: The water storage material comprises a combination of one or more of sponge, open-pore foam, and highly absorbent resin; and the water absorption rate of the water storage material is not less than 100%.

7. The electrode pad with a hygroscopic structure for use on human skin according to claim 1 or 2, characterized in that: The support (7) is an elastic support; the elastic support is made of one or more of mesh fabric, woven fabric, and elastic backing.

8. A method for preparing an electrode pad having a hygroscopic structure for use on human skin, comprising the following steps: S1, attaching a plurality of electrode segments (8-1, 8-2, 8-3) and a water storage area (3) to the surface of a support (7) facing the human skin (1), respectively, wherein the water storage area (3) is made of a water storage material, the electrode segments (8-1, 8-2, 8-3) include a circuit layer (4) and a dielectric layer (5), and the water isolation area (6) is a waterproof coating arranged around each of the electrode segments (8-1, 8-2, 8-3) to separate the water storage area (3) and each of the electrode segments (8-1, 8-2, 8-3); S2, attaching the first surface (9) of the water absorbing layer (2) to the plurality of electrode segments (8-1, 8-2, 8-3) and the water storage area (3), and the second surface (10) of the water absorbing layer (2) is used to attach to human skin (1).

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