Electrocardio-electrode patch

Abstract

The utility model discloses an electrocardio electrode patch. The electrocardio-electrode patch comprises a flexible base material, a first electrode layer and a second electrode layer, the high temperature resistant film is arranged on the flexible base material; wherein the thickness of the flexible base material is greater than or equal to that of the high-temperature-resistant film; and the conductive ink layer is arranged on one surface, far away from the flexible base material, of the high-temperature-resistant film. According to the embodiment of the utility model, the wearing comfort of the electrocardio-electrode patch can be improved, and the preparation cost of the electrocardio-electrode patch can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electrode stickers, in particular to an electrocardiogram electrode sticker. Background Art

[0002] ECG electrode stickers can be used in scenarios such as ECG monitoring and dynamic ECG recording, and are widely used in the modern medical field.

[0003] ECG electrode stickers in related technologies generally use polyethylene terephthalate (PET) as a substrate, and print conductive ink on PET. However, although PET can meet the requirements of high-temperature curing process when making conductive ink, it has the disadvantage of being extremely uncomfortable to use, which seriously affects the wearing experience. Utility Model Content

[0004] The utility model provides an electrocardiogram electrode patch to improve the wearing comfort of the electrocardiogram electrode patch.

[0005] According to one aspect of the utility model, an electrocardiogram electrode patch is provided, and the electrocardiogram electrode patch comprises:

[0006] Flexible substrate;

[0007] A high temperature resistant film, wherein the high temperature resistant film is disposed on the flexible substrate; wherein the thickness of the flexible substrate is greater than or equal to the thickness of the high temperature resistant film;

[0008] A conductive ink layer is arranged on a side of the high temperature resistant film away from the flexible substrate.

[0009] Optionally, the high temperature resistant film includes a thermoplastic polyurethane film or a thermoplastic elastomer film.

[0010] Optionally, the flexible substrate comprises knitted fabric.

[0011] Optionally, the thickness of the flexible substrate is greater than or equal to 0.1 mm and less than or equal to 0.2 mm; the thickness of the high temperature resistant film is less than or equal to 0.1 mm.

[0012] Optionally, the high temperature resistant film covers the entire surface of the flexible substrate;

[0013] Alternatively, the high temperature resistant film includes a supporting structure, which defines a plurality of openings; along the thickness direction of the ECG electrode patch, the orthographic projection of the conductive ink layer on the flexible substrate is located within the orthographic projection of the supporting structure on the flexible substrate; the supporting structure is used to support the conductive ink layer, and the openings expose the flexible substrate.

[0014] The technical solution of the embodiment of the utility model adopts an ECG electrode patch including a flexible substrate; a high temperature resistant film, which is arranged on the flexible substrate; wherein the thickness of the flexible substrate is greater than or equal to the thickness of the high temperature resistant film; and a conductive ink layer, which is arranged on the side of the high temperature resistant film away from the flexible substrate. By providing the high temperature resistant film and the flexible substrate, the requirement of high temperature curing of the conductive ink can be met, and the use of the high temperature resistant film can be reduced, thereby reducing the cost of the ECG electrode patch.

[0015] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present utility model, nor are they intended to limit the scope of the present utility model. Other features of the present utility model will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments 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 these drawings without creative work.

[0017] Figure 1 A schematic diagram of the structure of an electrocardiogram electrode patch provided by an embodiment of the utility model;

[0018] Figure 2 A schematic diagram of the structure of another electrocardiogram electrode patch provided by an embodiment of the utility model;

[0019] Figure 3 A flow chart of a method for preparing an electrocardiogram electrode patch provided in an embodiment of the utility model;

[0020] Figure 4 A schematic diagram of a product structure formed corresponding to the main steps of a method for preparing an ECG electrode patch provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0022] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0023] Figure 1 A schematic diagram of the structure of an electrocardiogram electrode patch provided by the present utility model, referring to Figure 1 The ECG electrode patch includes a flexible substrate 11, a high temperature resistant film 12 and a conductive ink layer 13. The high temperature resistant film 12 is disposed on the flexible substrate 11; wherein the thickness of the high temperature resistant film 12 is less than or equal to the thickness of the flexible substrate 11; and the conductive ink layer 13 is disposed on a side of the high temperature resistant film 12 away from the flexible substrate 11.

[0024] Specifically, the ECG electrode patch can be used in a wearable ECG sensor. When in use, the ECG electrode patch is attached to the corresponding part of the user to obtain relevant ECG signals; specifically, the flexible substrate 11 is in contact with the corresponding part of the user. The flexible substrate 11 and the high temperature resistant film 12 play the role of supporting the conductive ink layer 13, and the conductive ink layer 13 is used to sense ECG signals. The conductive ink layer 13 is patterned, and its specific pattern is well known to those skilled in the art and will not be repeated here. The process for making the conductive ink layer 13 is to first print the conductive ink on the corresponding substrate, and then use high temperature to cure the conductive ink. The flexible substrate 11 is flexible and has good wearing comfort, but its high temperature resistance is poor, that is, the material properties (such as physical properties and mechanical properties) decrease a lot at high temperatures. The high temperature resistant film 12 has strong high temperature resistance, and when the conductive ink is cured, its material properties can remain basically unchanged, which can meet the requirements of high temperature curing of the conductive ink.

[0025] In the related art, one solution is to use only a high temperature resistant film as the substrate and make a conductive ink layer on the high temperature resistant film. Because the material of the high temperature resistant film is relatively hard, it is extremely uncomfortable to wear. In addition, the cost of the high temperature resistant film is high. When the substrate only uses the high temperature resistant film, the high temperature resistant film needs to be thicker for its own firmness, which will also result in high costs. If only a flexible substrate layer is used, the material performance of the flexible substrate layer will decrease significantly when the conductive ink is cured at high temperature, resulting in a low yield rate of ECG electrode patches.

[0026] In this embodiment, the substrate includes a flexible substrate layer 11 and a high temperature resistant film 12. The conductive ink layer 13 is made on the high temperature resistant film 12. When cured at high temperature, the performance of the high temperature resistant film 12 can remain basically unchanged under high temperature conditions. And by providing the flexible substrate layer 11, the comfort of wearing the ECG electrode patch can be improved. In addition, since the thickness of the flexible substrate 11 is greater than or equal to the thickness of the high temperature resistant film 12, the thickness of the high temperature resistant film 12 accounts for a smaller proportion of the total thickness of the ECG electrode patch, and the thickness of the flexible substrate 11 accounts for a larger proportion of the total thickness of the ECG electrode patch; on the one hand, the wearing comfort can be further improved, and on the other hand, the use of the high temperature resistant film 12 can be reduced, thereby reducing costs.

[0027] The technical solution of this embodiment adopts an ECG electrode patch including a flexible substrate; a high temperature resistant film, which is arranged on the flexible substrate; wherein the thickness of the flexible substrate is greater than or equal to the thickness of the high temperature resistant film; and a conductive ink layer, which is arranged on the side of the high temperature resistant film away from the flexible substrate. By providing the high temperature resistant film and the flexible substrate, the requirement of high temperature curing of the conductive ink can be met, and the use of the high temperature resistant film can be reduced, thereby reducing the cost of the ECG electrode patch.

[0028] Optionally, the high temperature resistant film 12 includes a thermoplastic polyurethane film TPU or a thermoplastic elastomer film TPE. In addition to being resistant to high temperatures, the thermoplastic polyurethane film TPU also has the advantages of good elasticity, good physical properties and various mechanical strengths. It also has excellent high tension, high pulling force, strong toughness and aging resistance, and has great environmental advantages. In addition to being resistant to high temperatures, the thermoplastic elastomer film TPE also has the advantages of being easy to recycle, energy-saving, not requiring special processing equipment and having high production efficiency.

[0029] Optionally, the material of the flexible substrate includes knitted fabric. Since knitted fabric is also widely used in clothing, by using knitted fabric as the flexible substrate 11, the user's comfort when wearing it is closer to that of wearing clothes at ordinary times. In other words, by using knitted fabric as the flexible substrate, the wearing comfort can be further improved. Moreover, the cost of knitted fabric is lower than that of high temperature resistant film, and the cost of ECG electrode patch can be further reduced by using knitted fabric as the flexible substrate.

[0030] Optionally, the thickness of the flexible substrate 11 is greater than or equal to 0.1 mm and less than or equal to 0.2 mm; the thickness of the high temperature resistant film 12 is less than or equal to 0.1 mm. If the thickness of the high temperature resistant film 12 is too thick, such as greater than 0.1 mm, its cost is relatively high; when it is less than or equal to 0.1 mm, the cost can be effectively reduced. If the thickness of the flexible substrate 11 is smaller, its wearing comfort will be poor; if it is thicker, the overall thickness of the ECG electrode patch will be thicker and the wearing comfort will also be poor. In this embodiment, the thickness of the flexible substrate 11 is set to be greater than or equal to 0.1 mm and less than or equal to 0.2 mm, so that the wearing comfort of the ECG electrode patch is higher.

[0031] Optionally, refer to Figure 1 In some embodiments, the high temperature resistant film 12 covers the entire surface of the flexible substrate 11 .

[0032] Specifically, in this embodiment, along the thickness direction of the ECG electrode patch, the orthographic projection of the high temperature resistant film 12 on the flexible substrate 11 overlaps with the flexible substrate 11. With this arrangement, the manufacturing process is relatively simple. When manufacturing the high temperature resistant film 12, it is only necessary to press the high temperature resistant film 12 and the flexible substrate 11, and no additional arrangement is required for the high temperature resistant film 12, so the manufacturing cost is relatively low.

[0033] Alternatively, in some other embodiments, Figure 2 As shown, Figure 2 A schematic diagram of the structure of another ECG electrode patch provided in an embodiment of the utility model. In this embodiment, the high temperature resistant film includes a bearing structure 121, and the bearing structure 121 defines a plurality of openings 122; along the thickness direction of the ECG electrode patch, the orthographic projection of the conductive ink layer 13 on the flexible substrate 11 is located within the orthographic projection of the bearing structure 121 on the flexible substrate 11; the bearing structure 121 is used to bear the conductive ink layer 13, and the openings 122 expose the flexible substrate 11.

[0034] Specifically, in this embodiment, the high temperature resistant film does not cover the entire surface of the flexible substrate, but defines a plurality of openings 122. The orthographic projection of the supporting structure 121 on the flexible substrate 11 can be completely overlapped with the orthographic projection of the conductive ink layer 13 on the flexible substrate 11. Alternatively, the orthographic projection area of ​​the supporting structure 121 on the flexible substrate 11 may be greater than the orthographic projection area of ​​the conductive ink layer 13 on the flexible substrate 11. The high temperature resistant film 12 in this embodiment defines a plurality of openings, which is Figure 1 As for the structure shown, the high temperature resistant film 12 is not provided on the entire surface, and has higher flexibility, which means that the wearing comfort of the ECG electrode patch can be further improved.

[0035] Optionally, the ECG electrode patch further includes a protective film covering the conductive ink layer. The protective film is made of insulating material and plays a role in protecting the conductive ink layer from external mechanical damage or chemical corrosion. At the same time, the protective film can also play an insulating role to prevent external electrical signals from being transmitted to the conductive ink layer.

[0036] The utility model also provides a method for preparing the electrocardiogram electrode patch. Figure 3 A flowchart of a method for preparing an electrocardiogram electrode patch provided in an embodiment of the utility model, Figure 4 The main steps of the preparation method of the electrocardiogram electrode patch provided by the embodiment of the utility model correspond to the product structure diagram formed, such as Figure 3 and Figure 4 The preparation method of the electrocardiogram electrode patch includes:

[0037] Step S301, forming a high temperature resistant film on a flexible substrate; wherein the thickness of the flexible substrate is greater than or equal to the thickness of the high temperature resistant film;

[0038] Specifically, a flexible substrate 11 may be provided first, and the flexible substrate 11 may be a knitted fabric, and the flexible substrate 11 is subsequently used to contact the corresponding part of the user. The performance of the high temperature resistant film 12 can remain basically unchanged when the conductive ink is subsequently cured at high temperature, thereby meeting the curing requirements of the conductive ink.

[0039] Step S302 , forming a conductive ink layer on a side of the high temperature resistant film away from the flexible substrate.

[0040] In this embodiment, the substrate includes a flexible substrate layer 11 and a high temperature resistant film 12. The conductive ink layer 13 is made on the high temperature resistant film 12. When cured at high temperature, the performance of the high temperature resistant film 12 can remain basically unchanged under high temperature conditions. And by providing the flexible substrate layer 11, the comfort of wearing the ECG electrode patch can be improved. In addition, since the thickness of the flexible substrate 11 is greater than or equal to the thickness of the high temperature resistant film 12, the thickness of the high temperature resistant film 12 accounts for a smaller proportion of the total thickness of the ECG electrode patch, and the thickness of the flexible substrate 11 accounts for a larger proportion of the total thickness of the ECG electrode patch; on the one hand, the wearing comfort can be further improved, and on the other hand, the use of the high temperature resistant film 12 can be reduced, thereby reducing costs.

[0041] The technical solution of this embodiment manufactures an ECG electrode patch with a high temperature resistant film and a flexible substrate, which can not only meet the high temperature curing requirements of the conductive ink, but also reduce the use of the high temperature resistant film, thereby reducing the cost of the ECG electrode patch.

[0042] Optionally, the high temperature resistant film 12 includes a thermoplastic polyurethane film TPU or a thermoplastic elastomer film TPE; forming the high temperature resistant film on the flexible substrate includes:

[0043] The high temperature resistant film is attached to the flexible substrate by using a heat pressing process.

[0044] Specifically, after providing the high temperature resistant film 12 and the flexible substrate 11, the two are pressed together by a hot pressing process. The hot pressing process has the advantages of mature technology, low cost and high yield rate. The hot pressing process can reduce costs and make the ECG electrode patch have a high yield rate.

[0045] Optionally, forming a conductive ink layer on a side of the high temperature resistant film away from the flexible substrate comprises:

[0046] The conductive ink is printed onto the side of the high temperature resistant film away from the flexible substrate 11 by screen printing, and the conductive ink is cured by baking at a preset temperature to form a conductive ink layer.

[0047] Specifically, the conductive ink layer has a preset pattern, and the preset pattern can be printed on the high temperature resistant film by screen printing. The conductive ink is then cured at high temperature, and the preset temperature can be 130° C. The material properties of the high temperature resistant film 12 remain substantially unchanged at the preset temperature.

[0048] Optionally, after forming the conductive ink layer on the side of the high temperature resistant film away from the flexible substrate, the method further includes:

[0049] Part of the structure of the high temperature resistant film is removed to form a bearing structure and an opening defined by the bearing structure; wherein, along the thickness direction of the ECG electrode patch, the orthographic projection of the conductive ink layer on the flexible substrate is located within the orthographic projection of the bearing structure on the flexible substrate; the bearing structure is used to bear the conductive ink layer, and the opening exposes the flexible substrate.

[0050] Specifically, refer to Figure 2 , a portion of the high temperature resistant film can be removed by etching or the like to form the bearing structure 121 and the opening 122. In this embodiment, the high temperature resistant film 12 is not provided on the entire surface, and has higher flexibility, which can further improve the wearing comfort of the ECG electrode patch.

[0051] Optionally, after forming the conductive ink layer on the side of the high temperature resistant film away from the flexible substrate, the method further includes: forming a protective film covering the conductive ink layer. The protective film is made of insulating material to protect the conductive ink layer from external mechanical damage or chemical corrosion. At the same time, the protective film can also play an insulating role to prevent external electrical signals from being transmitted to the conductive ink layer.

[0052] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be performed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0053] The above specific implementations do not constitute a limitation on the protection scope of the present utility model. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An electrocardiogram electrode patch, characterized in that: The electrocardiogram electrode patch comprises: Flexible substrate; A high temperature resistant film, wherein the high temperature resistant film is disposed on the flexible substrate; wherein the thickness of the flexible substrate is greater than or equal to the thickness of the high temperature resistant film; A conductive ink layer is arranged on a side of the high temperature resistant film away from the flexible substrate.

2. The ECG electrode patch according to claim 1, characterized in that: The high temperature resistant film comprises a thermoplastic polyurethane film or a thermoplastic elastomer film.

3. The ECG electrode patch according to claim 1, characterized in that: The flexible substrate includes a knitted fabric.

4. The ECG electrode patch according to claim 1, characterized in that: The thickness of the flexible substrate is greater than or equal to 0.1 mm and less than or equal to 0.2 mm; the thickness of the high temperature resistant film is less than or equal to 0.1 mm.

5. The ECG electrode patch according to claim 1, characterized in that: The high temperature resistant film covers the entire surface of the flexible substrate; Alternatively, the high temperature resistant film includes a bearing structure, the bearing structure defines a plurality of openings; along the thickness direction of the ECG electrode patch, the orthographic projection of the conductive ink layer on the flexible substrate is located within the orthographic projection of the bearing structure on the flexible substrate; The supporting structure is used for supporting the conductive ink layer, and the opening exposes the flexible substrate.

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