Electrode patch for physiotherapy with heating function
By designing two flexible conductive layers and an insulating and thermally conductive layer, combined with conductive gel and a fixing structure, the problems of complex manufacturing and inconvenient wearing of existing heating electrode patches are solved, achieving low cost, high-efficiency thermal conduction and comfortable wearing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING AEROSPACE ROCKET ELECTRONIC TECH CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-21
AI Technical Summary
Existing heating electrode patches are complex to manufacture, costly, and inconvenient to wear.
It adopts a two-layer flexible conductive layer structure, including heating electrodes and pulse electrodes, which are isolated by an insulating thermal conductive layer and use conductive gel to contact the skin. It is fixed by flexible bandage and adhesive layer, which simplifies the manufacturing process and reduces costs.
This invention achieves a heating electrode patch that is simple in structure, low in cost, and comfortable to wear. It has high thermal conductivity, avoids the problem of electrode lifting, and enhances the fit with the skin.
Smart Images
Figure CN224523807U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of physiotherapy devices, specifically to a physiotherapy electrode patch with heating function. Background Technology
[0002] Physiotherapy electrode pads are equipment accessories used in physical therapy. They are mainly used to transmit electric current or other forms of energy to human tissues to achieve therapeutic effects. Their working principle is as follows: when an electric current passes through the electrode pad, it guides the current into the human tissue, thereby producing a therapeutic effect. The electrode pad delivers the current to specific areas through contact with the skin, stimulating nerves, muscles, and tissues. Physiotherapy electrode pads can have biological effects such as analgesia, anti-inflammation, swelling reduction, and promoting healing. They have significant therapeutic effects on diseases such as arthritis, muscle fatigue, nerve root pain, and cerebrovascular disorders.
[0003] To achieve simultaneous heating of the output electrode and the output electrode, Chinese Patent Application No. 2024212027803 discloses a heating electrode patch and a physiotherapy device. The patch includes a PI film, a temperature control component, a first electrode, a second electrode, and a third electrode; the temperature control component includes at least one PTC thermistor. A first layer and a second layer are respectively disposed on the upper and lower layers of the PI film, where the first layer is a substrate layer formed of flexible heat-insulating material, and the second layer is a thin film made of gel material. This electrode patch achieves automatic temperature control, heating, and physiotherapy functions on a single PI film by obtaining an automatically temperature-controlled heating circuit on the first side of the PI film and etching conductive areas on the second side. While the above-mentioned electrode patch can heat the motor simultaneously with the output electrode, its manufacturing process is relatively complex and the production cost is high. Summary of the Invention
[0004] In view of the above-mentioned shortcomings of the existing technology, the purpose of this utility model is to provide a physiotherapy electrode patch with heating function, which solves the problems of complex manufacturing process and inconvenient wearing of existing heating electrode patches.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A therapeutic electrode patch with heating function includes, from top to bottom, a flexible base layer, a heating electrode, an upper flexible conductive layer, an insulating and thermally conductive layer, a pulse electrode, a lower flexible conductive layer, and a conductive gel. The heating electrode includes a first heating electrode and a second heating electrode, spaced apart and connected to the upper flexible conductive layer to form a heating and conductive path. The pulse electrode is in close contact with the lower flexible conductive layer and, after being conductive with it, emits a pulse signal through the conductive gel layer. Thus, the electrode patch uses two flexible conductive layers, with the heating electrode connected to the upper flexible conductive layer. After generating heat through conductivity, the signal is transmitted to the conductive gel via the upper flexible conductive layer, the insulating and thermally conductive layer, and the lower flexible conductive layer, acting on the affected area. Simultaneously, the heating electrode and the pulse electrode are isolated by an insulating layer and form conductive circuits with the upper and lower flexible conductive layers respectively, thereby enabling simultaneous heating and output of therapeutic electrical signals. The overall assembly structure is simple, and compared to existing technologies that use a single conductive layer and etch lines or conductive areas onto it, the process is simpler and the manufacturing cost is lower. The conductive gel not only conducts electricity and transmits pulse signals, but it can also be directly applied to the skin for easy wear.
[0006] Furthermore, it also includes a flexible strap, which is fixed to the flexible base layer. In this way, after the gel is adhered to the skin, it is secured with the flexible strap, preventing it from loosening or falling off when shaken.
[0007] Furthermore, a flexible adhesive layer is attached to the flexible base layer. The area of the flexible adhesive layer is larger than that of the flexible base layer, and at least two of its four sides extend beyond the flexible base layer. The lower end of the extended portion forms an adhesive surface for skin contact. A release film of the same shape and size is provided on the adhesive surface. Thus, in addition to securing the electrode patch to the user with straps, it can also be fixed by adhering it to the skin using a flexible adhesive layer with an area larger than the flexible base layer. The release film on the adhesive surface can be peeled off during use to prevent contamination of the adhesive surface.
[0008] Furthermore, the upper flexible conductive layer and the lower flexible conductive layer are one or any two of the following: a conductive PE film, a conductive coating film, or a conductive PP film. This allows the conductive PE film to be thinner than existing PI films, while also possessing excellent thermal and electrical conductivity, resulting in higher thermal conductivity. In addition, the conductive PE film has good flexibility and, when used with the gel, will not pull the gel outwards, preventing the electrode edges from lifting and ensuring better fit to the human body. The conductive coating film is a conductive coating applied to a regular PP or PE film, also exhibiting good flexibility. The conductive PP film has good lightness and flexibility, as well as good conductivity, allowing it to adhere well to the human body when combined with the gel layer.
[0009] Furthermore, adhesive is coated on both the upper and lower surfaces of the insulating and thermally conductive layer. These surfaces are connected to the upper and lower flexible conductive layers respectively via adhesive. The upper flexible conductive layer lies within the projected area of the insulating and thermally conductive layer, and the outer edge of the lower flexible conductive layer is aligned with or within the projected area of the insulating and thermally conductive layer. By setting the area of the upper flexible conductive layer to be smaller than that of the insulating and thermally conductive layer, insulation and isolation of the heating electrode are ensured, preventing conductivity between the upper and lower flexible conductive layers. Coating both surfaces with adhesive allows them to adhere to the upper and lower flexible conductive layers respectively, and also positions the heating electrode and pulse electrode.
[0010] Furthermore, the thickness of the upper and lower flexible conductive layers is less than or equal to 100 micrometers. This results in smaller thicknesses of the two conductive layers, leading to better flexibility and a more comfortable fit.
[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. It adopts two flexible conductive layers. The two flexible conductive layers have good flexibility, and an insulating and thermally conductive layer is used in the middle for insulation and isolation. It can conduct heat and achieve insulation and isolation, so that heating and pulse signal output do not interfere with each other. This makes the entire electrode patch more flexible and can be well worn on the human body when combined with conductive gel.
[0012] 2. Using conductive PE film as the upper and lower flexible conductive layers results in low cost and good flexibility. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the electrode patch in Example 1; Figure 2 This is a schematic diagram of the disassembled structure of the electrode patch in Example 1; Figure 3 This is a three-dimensional structural diagram of the electrode patch in Example 2. Detailed Implementation
[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0015] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship commonly used when the product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In addition, the terms "horizontal," "vertical," etc., do not indicate that the component is required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0016] Example 1 like Figure 1 , Figure 2As shown, a therapeutic electrode patch with heating function includes a flexible base layer 1, a heating electrode 2, an upper flexible conductive layer 3, an insulating and thermally conductive layer 4, a pulse electrode 5, a lower flexible conductive layer 6, and a conductive gel 7, stacked and connected from top to bottom. The upper flexible conductive layer 3 and the lower flexible conductive layer 6 are conductive PE films. The heating electrode 2 includes a first heating electrode 2a and a second heating electrode 2b, which are spaced apart and connected to the upper flexible conductive layer 3 to form a heating conductive path. The pulse electrode 5 is in close contact with the lower flexible conductive layer 6 and, after being connected to the lower flexible conductive layer 6, emits a pulse signal through the conductive gel 7 layer. In use, the first heating electrode 2a is connected to an external power source via a wire, and after being connected to the upper flexible conductive layer 3 and the second heating electrode 2b, power is supplied to the first heating electrode 2a and the second heating electrode 2b to achieve heating. The pulse electrode 5, after being connected to an external power source via a wire, outputs a pulse signal. In this embodiment, the electrode patch employs two flexible conductive layers. The heating electrode 2 is connected to the upper flexible conductive layer 3, allowing it to conduct heat and transmit the signal through the upper flexible conductive layer 3, the insulating and thermally conductive layer 4, and the lower flexible conductive layer 6 to the conductive gel 7, which then acts on the affected area. Simultaneously, the heating electrode 2 and the pulse electrode 5 are isolated by an insulating layer and form conductive circuits with the upper and lower flexible conductive layers 3 and 6 respectively. This enables simultaneous heating and output of therapeutic electrical signals. The overall assembly structure is simple, and compared to existing technologies that use a single conductive layer with etched circuits or conductive areas, the process is simpler and the manufacturing cost is lower. The conductive gel 7 not only conducts electricity and transmits pulse signals but can also be directly applied to the skin for convenient wear. Furthermore, the conductive PE film is thinner than existing PI films and has excellent thermal and electrical conductivity, resulting in higher thermal conductivity. In addition, the conductive PE film is flexible and, when used with the gel, will not pull the gel outwards, preventing the electrode patch edges from lifting and ensuring better fit to the body.
[0017] In specific implementations, a conductive coating film or a conductive PP film can be used to replace the first flexible conductive layer and / or the second flexible conductive layer.
[0018] like Figure 2As shown, adhesive is applied to the side of the flexible base layer 1 corresponding to the upper flexible conductive layer 3, as well as to both the upper and lower surfaces of the insulating and thermally conductive layer 4. The flexible base layer 1 and the upper flexible conductive layer 3 are connected together by adhesive, and the first heating electrode 2a and the second heating electrode 2b are pressed and positioned on the upper flexible conductive layer 3. The upper and lower surfaces of the insulating and thermally conductive layer 4 are respectively connected and fixed to the upper flexible conductive layer 3 and the lower flexible conductive layer 6 by adhesive, and the pulse electrode 5 is pressed and fixed between the insulating and thermally conductive layer 4 and the lower flexible conductive layer 6. The upper flexible conductive layer 3 is within the projected area of the insulating and thermally conductive layer 4, and the outer edge of the lower flexible conductive layer 6 is aligned with or within the projected area of the insulating and thermally conductive layer 4. The flexible base layer 1, the upper flexible conductive layer 3, the insulating and thermally conductive layer 4, and the lower flexible conductive layer 6 are all bonded together, resulting in a stable connection and a simple manufacturing process. By setting the area of the upper flexible conductive layer 3 to be smaller than that of the insulating and thermally conductive layer 4, insulation and isolation of the heating electrode 2 can be ensured, preventing the upper flexible conductive layer 3 and the lower flexible conductive layer 6 from conducting. Adhesive is applied to both the upper and lower surfaces of the insulating and thermally conductive layer 4, which allows the upper and lower surfaces to be bonded to the upper flexible conductive layer 3 and the lower flexible conductive layer 6 respectively, and to position the heating electrode 2 and the pulse electrode 5.
[0019] In this embodiment, the thickness of the upper flexible conductive layer 3 and the lower flexible conductive layer 6 is 50 micrometers.
[0020] The heating electrode 2 and pulse electrode 5 used in the embodiments are metal electrodes or graphene electrodes, such as... Figure 1 , Figure 2 As shown, both the heating electrode 2 and the pulse electrode 5 are connected to a wire that extends out of the electrode patch and is connected to an external power source through the wire.
[0021] Example 2 like Figure 3 As shown, the therapeutic electrode patch with heating function provided in this embodiment differs from that in Embodiment 1 only in that a flexible strap 8 is connected to the flexible base layer 1. In specific implementation, the flexible strap 8 may be elastic, and its width may be the same as or greater than the width of the flexible base layer 1. One end of the flexible strap 8 may be fixed to the flexible base layer 1, and a snap fastener may be provided on the flexible base layer 1 to secure the other end of the flexible strap 8. Alternatively, the middle of the strap 8 may be fixed to the flexible base layer 1, with both ends extending beyond the flexible base layer 1 for wrapping around the user's wrist or other body parts.
[0022] In addition to using flexible straps 8 for further fixation with the user, a flexible adhesive layer can be adhered to the flexible base layer. The area of the flexible adhesive layer is larger than that of the flexible base layer 1, and two opposite sides of the flexible adhesive layer extend beyond the flexible base layer (in specific implementations, all four sides may extend beyond the flexible base layer, or three sides may extend beyond the flexible base layer), forming an adhesive surface for skin contact (the adhesive surface is located on the lower end face). A release film of the same shape and size is provided on the adhesive surface. Thus, in addition to using straps for fixation with the user, the electrode patch can also be fixed by using a flexible adhesive layer with an area larger than the flexible base layer for skin contact. The release film on the adhesive surface can be torn off during use to prevent contamination. In specific implementations, multiple notches can be provided at the adhesive surface to accommodate different application sites.
[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and not to limit the technical solutions. Those skilled in the art should understand that any modifications or equivalent substitutions to the technical solutions of this utility model that do not depart from the spirit and scope of this technical solution should be covered within the scope of the claims of this utility model.
Claims
1. A therapeutic electrode patch with heating function, comprising a flexible base layer, a heating electrode, and a pulse electrode, characterized in that, It also includes an upper flexible conductive layer, a lower flexible conductive layer, an insulating and thermally conductive layer, and a conductive gel layer. The flexible base layer, heating electrode, upper flexible conductive layer, insulating and thermally conductive layer, pulse electrode, lower flexible conductive layer, and conductive gel are stacked together in sequence from top to bottom. The heating electrode includes a first heating electrode and a second heating electrode, which are spaced apart and connected to the upper flexible conductive layer to form a heating and conductive path. The pulse electrode is in close contact with the lower flexible conductive layer and, after being connected to the lower flexible conductive layer, emits a pulse signal through the conductive gel layer.
2. The therapeutic electrode patch with heating function according to claim 1, characterized in that, It also includes a flexible strap, which is fixed to the flexible base layer.
3. The therapeutic electrode patch with heating function according to claim 1, characterized in that, A flexible adhesive layer is also connected to the flexible base layer. The area of the flexible adhesive layer is larger than that of the flexible base layer, and at least two of its four sides extend beyond the flexible base layer. The lower end face of the extended portion forms an adhesive surface for adhering to the skin. A release film of the same shape and size as the adhesive surface is provided.
4. The therapeutic electrode patch with heating function according to claim 1, 2, or 3, characterized in that, The upper flexible conductive layer and the lower flexible conductive layer are one or any two of the following: conductive PE film, conductive coating film, or conductive PP film.
5. The therapeutic electrode patch with heating function according to claim 4, characterized in that, Adhesive is coated on both the upper and lower surfaces of the insulating and thermally conductive layer. The upper and lower surfaces of the insulating and thermally conductive layer are respectively connected to the upper flexible conductive layer and the lower flexible conductive layer through adhesive. The upper flexible conductive layer is located within the projected area of the insulating and thermally conductive layer, and the outer edge of the lower flexible conductive layer is aligned with or located within the projected area of the insulating and thermally conductive layer.
6. The therapeutic electrode patch with heating function according to claim 1, 2, 3, or 5, characterized in that, The thickness of the upper flexible conductive layer and the lower flexible conductive layer is less than or equal to 100 micrometers.