CN211270734U - Electrode unit for measuring electrophysiological signals - Google Patents

Abstract

The utility model provides an electrode unit for measuring electrophysiological signals. The electrode unit comprises a base material, an electrode, a connector, a conductive wire, a limiting module and a film. The base material comprises a first base material layer and a second base material layer. The electrode is inserted into the opening of the first substrate layer. The conductive wire is disposed on the first substrate layer. The conductive wire connects the electrode and the connector. The connector is arranged inside the limiting module. The limiting module is arranged in the opening of the film. A second substrate layer is disposed on top of the conductive line. The film is arranged on the first base material layer and the second base material layer.

Description

Electrode unit for measuring electrophysiological signals

technical field

The utility model relates to an electrode unit, in particular to an electrode unit used for measuring the electrophysiological signal of a measured object.

Background technique

The collection of human physiological electrical signals can directly reflect the health status of the human body. Electrocardiogram (ECG) information acquisition equipment is widely used in clinical activities to monitor the physical condition of patients. Through abnormal changes in ECG information, medical personnel can detect abnormal conditions of patients in time, which is helpful for diagnosis and treatment.

In order to prevent cross-infection, disposable Ag/AgCl ECG electrodes are often used, which are directly attached to the skin of the patient's body during use. The disposable Ag/AgCl electrocardiographic electrode is fixed with a protruding electrode part, and the protruding electrode part forms a connection relationship in the form of plugging with the electrode wire on the electrocardiographic state analysis device. However, such a protruding electrode structure may lead to insufficient compactness of the overall structure of the ECG electrode. In addition, this protruding electrode part is made of heavy metal material, which may cause the electrode to shift with the patient's body movement, which is not suitable for the physiological study of athletes or some diagnoses that require body movement. work. Therefore, in the new design of the electrode unit for collecting ECG signals, the structure of the electrodes needs to be simplified as much as possible, so that one electrode unit can include as many ECG electrodes as possible for ease of use. At the same time, lightweight materials can be used to increase comfort, breathability, and water resistance for long-term monitoring.

Utility model content

The purpose of the utility model is to provide an electrode unit for collecting electrocardiographic information. The electrode unit needs to use an elastic lightweight fabric as the base material, which is directly attached to the skin through a skin-specific viscous gel to increase the adhesion to the skin, thereby reducing the mass of the electrode unit and reducing motion artifacts.

The utility model provides an electrode unit for measuring the physiological electrical activity of a measured object. The electrode unit includes a base material, an electrode, a connector, a conductive wire, a limiting module and a film.

In one embodiment, the matrix material includes a first substrate layer and a second substrate layer.

In one embodiment, the electrode is inserted into the opening of the first substrate layer. The conductive lines are placed on the first substrate layer.

In one embodiment, the conductive wire connects the electrode and the connector. The connector is placed inside the limit module.

In one embodiment, the limiting module is placed in the opening of the membrane.

In one embodiment, the second substrate layer is placed on top of the conductive lines.

In one embodiment, the film is placed over the first substrate layer and the second substrate layer.

In one embodiment, the electrode unit further includes an adhesive tape, and the adhesive tape is used in the gap between the connector and the limiting module.

In one embodiment, the electrode unit further includes a first release paper and a second release paper.

In one embodiment, the base material includes an elastic material made of non-woven fabric, cotton, polyester fiber, nylon or nylon.

In one embodiment, the elasticity of the matrix material is equivalent to that of a human muscle.

In one embodiment, the bottom surface of the base material is coated with an adhesive gel specific for human skin.

In one embodiment, the viscous gel for human skin includes menthol to achieve cooling, antipruritic, antibacterial and anti-inflammatory effects.

In one embodiment, the electrode comprises a conductive paste, a conductive gel or a composite dry electrode comprising CNT-PDMS or CNT-Ag-PDMS.

In one embodiment, the electrode includes menthol to achieve cooling, antipruritic, antibacterial and anti-inflammatory effects.

In one embodiment, the connector includes a conductive gel.

In one embodiment, the conductive wire includes a conductive wire wound with metal wires or a conductive webbing woven from polyester fibers.

In one embodiment, the conductive thread has the same elasticity as the base material.

In one embodiment, the restraint module includes a biocompatible polymer material including silicone, thermoplastic polyurethane (TPU), and polyethylene terephthalate (PET) one or more.

In one embodiment, the membrane is made of membrane.

In one embodiment, the film includes extensibility, water resistance and breathability.

In one embodiment, the adhesive tape, the connector and the limiting module together realize the function of connecting the electrode unit and the ECG signal acquisition device.

Description of drawings

The features of the technology are set forth in the appended claims. However, for the purpose of illustration, several embodiments of the present technology are set forth in the following figures.

FIG. 1 is a schematic structural diagram of an exemplary electrode unit according to an embodiment of the present invention.

FIG. 2 is a schematic cross-sectional structure diagram of the electrode unit in FIG. 1 according to an embodiment of the present invention.

FIG. 3 is a schematic diagram of the components of the electrode unit of FIG. 1 according to one embodiment of the present invention.

FIG. 4 is a schematic diagram of the electrode unit in FIG. 1 placed on a measured object according to an embodiment of the present invention.

Detailed ways

The detailed description set forth below is intended as a description of various configurations of the present technology and is not intended to represent the only configurations in which the present technology may be practiced. The accompanying drawings are incorporated herein and constitute a part of this detailed description. This detailed description includes specific details for the purpose of providing a thorough understanding of the utility model technology. However, the techniques of the present disclosure are not limited to the specific details set forth herein and may be practiced without these specific details. In some instances, some structures and some components are shown in block diagram form in order to avoid obscuring the concepts of the present technology.

It should be understood that aspects of the invention will be described in terms of an illustrative architecture given; however, other architectures, structures, materials, and process features and steps may vary within the scope of the aspects of the invention.

It will also be understood that when an element such as a layer, region or substrate is referred to as being "on" or "over" another element, it can be directly on the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" or "directly on" another element, there are no intervening elements present.

It will also be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may be present. In contrast, when an element is referred to as being "directly connected" or "directly coupled" to another element, there are no intervening elements present.

This embodiment may include designs for medical devices that may include multiple features or combinations of features. According to some embodiments of the present invention, some or all of the features may or may not be present on the device.

References in the specification to "one embodiment" or "an embodiment" and other variations thereof mean that a particular feature, structure, characteristic, etc. described in connection with the embodiment is included in at least one embodiment. Thus, appearances of the phrases "in one embodiment" or "in an embodiment" and any other variations in various places throughout the specification are not necessarily all referring to the same embodiment.

It should be understood that the following uses of "/", "and/or" and "at least one", such as in the context of "A/B", "A and/or B" and "at least one of A and B", It is intended to cover options that include only the first listed option (A), or only the second listed option (B), or options that include both options (A and B).

As a further example, in the case of "A, B and/or C" and "at least one of A, B and C", such wording is intended to include only the first listed option (A) Choices that include only the second listed option (B), or only the third listed option (C), or only the first and second listed options (A and B), or only the first and third listed options (A and C), or only the second and third (B and C), or all Choice of three options (A and B and C). This can be extended for many of the items listed, as will be apparent to those of ordinary skill in this and related art.

For ease of description, spatially relative terms, such as "below", "below", "below", "above", "above", etc., may be used herein to describe The illustrated relationship of one element or feature to another element or feature. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or otherwise) and the spatially relative descriptors used herein interpreted accordingly. In addition, it will also be understood that when a layer is referred to as being 'between' two layers, it can be the only layer between the two layers, or one or more intervening layers may also be present.

It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. Thus, a first element discussed below could be termed a second element without departing from the scope of the present invention.

The systems and methods of the present embodiments can also be used on animals, models, and other non-biological substrates, such as in training, testing, and demonstrations.

It should be understood that the present embodiments are not limited to the specific devices, methods, conditions or parameters described and/or illustrated herein, and the terminology used herein is limit. Ranges may be expressed herein as from "about" or "approximately" one particular value and/or to "about" or "approximately" another particular value. When such a range is expressed, another embodiment includes from one particular value and/or to another particular value. Similarly, when values are expressed as approximations, by use of the antecedent "about," it will be understood that the particular value may form another embodiment.

FIG. 1 is a schematic structural diagram of an exemplary electrode unit according to an embodiment of the present invention.

As shown in FIG. 1 , the electrode unit 100 includes a base material 101 , an electrode 102 , a connector 103 , a conductive wire 104 , a limiting module 105 , an adhesive tape 106 and a film 107 .

According to an embodiment of the present invention, the base material 101 may be an elastic lightweight patch woven from non-woven fabric, cotton, polyester fiber, nylon and nylon produced by mechanical mesh weaving technology. The base material 101 can match the texture of human skin, so as to achieve smooth attachment to human skin. The elasticity of the base material 101 may be equivalent to the elasticity of human muscles. Through holes can be scientifically designed in the matrix material 101 to provide excellent air permeability. The matrix material 101 may include good breathability, good elasticity, and/or good skin feel properties to improve user comfort. On the bottom surface of the base material 101, an adhesive gel dedicated to human skin may be coated, so that the electrode unit 100 may be securely fixed to the human skin. In some embodiments, for example, the thickness of the base material 101 may be less than 0.5 mm. Accordingly, the matrix material 101 may include properties such as softness and/or light weight, resulting in a good user experience. For example, the thickness of the base material 101 may be set to about 0.4 mm. In some embodiments, a menthol component may be added to the adhesive gel for human skin to achieve cooling, antipruritic, antibacterial and anti-inflammatory effects.

According to one embodiment of the present invention, the electrodes 102 may include ECG electrodes. The electrode unit 100 may include two electrodes 102, which may be symmetrically distributed on both sides of the limiting module 105, so that the ECG signal can be more stable. In some embodiments, electrode unit 100 may include one, two, three, or more electrodes 102 . A set of two electrodes 102 may be configured to collect electrocardiographic signals by contacting a person's skin. The electrode 102 may be a conductive gel cut into a circular shape, and the diameter of the circular conductive gel may be about 5 mm to 20 mm. In some embodiments, the conductive gel may be formed from a water-soluble or hydrophilic polymer through some chemical or physical cross-linking, so that any discomfort to the human body can be avoided and user experience can be improved. In some embodiments, a menthol component may be further added to the conductive gel to achieve cooling, antipruritic, antibacterial and anti-inflammatory effects. In some embodiments, electrode 102 may also be made of conductive paste, CNT-PDMS composite dry electrode material, CNT-Ag-PDMS composite dry electrode material, or other materials.

Connector 103 may comprise an adhesive connector. The connector 103 may be configured to be connected with the electrocardiographic signal acquisition device and transmit the electrocardiographic signal acquired by the electrodes 102 . In some embodiments, the electrode unit 100 may include one, two, three, or more connectors 103, the number of which may correspond to the number of electrodes 102. The material of the connector 103 may be medical conductive gel, which may be viscous and can be tightly fixed to a metal conductive sheet from the electrocardiographic signal acquisition device. The shape of the connector 103 may be circular, and the diameter of the connector 103 may be about 5 mm to 20 mm. The plurality of connectors 103 may be separated from each other and evenly distributed inside the limiting module 105 . The connector 103 can be connected to the electrode 102 via the conductive wire 104 .

Conductive wire 104 may comprise an elastic conductive wire. The conductive wire 104 may be a conductive wire wound with metal wires such as conductive nano-silver wires and/or a conductive webbing woven from polyester fibers. The elasticity of the conductive thread 104 may be equal to the elasticity of the base material 101, thereby maintaining the measurement stability of the electrode unit 100 when the human muscle is stretched. In some embodiments, the electrode unit 100 may include one, two, three, or more conductive lines 104 , the number of which may correspond to the number of electrodes 102 .

According to one embodiment of the present invention, the material of the limiting module 105 may include a polymer, such as polyethylene terephthalate (PET), which may be a milky white or light yellow highly crystalline polymer with a smooth surface. The limiting module 105 can have high creep resistance, fatigue resistance and friction resistance. The limit module 105 can be an excellent barrier against air, water, and oil. The limiting module 105 can have good dimensional stability. In some embodiments, the material of the limiting module 105 may further include biocompatible polymer materials such as silica gel, thermoplastic polyurethane (TPU). The limiting module 105 may be configured to reinforce the contact between the connector 103 and the connection medium from the ECG signal acquisition device to perform stable signal acquisition. In addition to the limit module 105, an adhesive tape 106 can be used in the gap between the surface of the connector 103 and the limit module 105 to connect the electrode unit 100 and the ECG signal acquisition device tightly and stably, so as to avoid two displacement of one or more of them. In some embodiments, tape 106 may be a double-sided tape. In some embodiments, the adhesive tape 106 , the connector 103 and the limiting module 105 together realize the function of connecting the electrode unit 100 and the ECG signal acquisition device, thereby making the ECG signal acquisition more stable.

According to one embodiment of the present invention, the membrane 107 may comprise an elastic breathable waterproof membrane. The film 107 may be used to cover the upper surface and the edge of the electrode unit 100 to provide waterproof function. The limiting module 105 may be exposed through the opening in the film 107 . In some embodiments, the ECG signal acquisition device can be connected by plugging the limiting module 105 and the connector 103 . The membrane 107 may be made of a membrane, such as a polyurethane (Polyurethane, PU) waterproof membrane, which is a non-toxic and harmless high-elasticity and environment-friendly material. The film 107 may have properties of high extensibility, water resistance and breathability. In some embodiments, the thickness of the film 107 may be small, eg, about 0.05 mm. In some embodiments, the film 107 may have excellent water resistance and excellent breathability. The membrane 107 can withstand water pressure in excess of 1000mm. The film 107 may have a moisture vapor permeability of about 500-600 g/(m ² ·24h). In some embodiments, human sweat can freely pass through membrane 107 . By using materials with high elasticity, excellent water resistance and high air permeability, the electrode unit 100 can perform ECG signal acquisition during one or more activities, including physical activity and bathing, as well as long-term dynamics of ECG signals Measurement.

In some embodiments, the components of the electrode unit 100 may all be made of elastic materials. Therefore, under different motion states of the measured object of the electrode unit 100, the resistance value between the measured object's skin and the electrode unit 100 can be kept approximately the same. In some embodiments, the resistance between the electrode 102 and the connector 103 of the electrode unit 100 may remain approximately the same when the subject wearing the electrode unit 100 is bathed. In some embodiments, the resistance between the electrodes 102 of the electrode unit 100 and the connectors 103 may still show no significant change after 24 hours of use. The resistance between the electrode 102 and the connector 103 of the electrode unit 100 may also not change significantly in the chest expansion or resting state of the subject wearing the electrode unit 100.

FIG. 2 is a schematic cross-sectional structure diagram of the electrode unit in FIG. 1 according to an embodiment of the present invention.

In one embodiment, FIG. 2 shows a schematic cross-sectional structure diagram of the electrode unit 100 shown in FIG. 1 along the center line a-a'. As shown in FIG. 2, the operational relationship between all the components of one embodiment of the electrode unit 100 is shown. In FIG. 2, the electrode unit 100 includes two layers of base material 101 (including a first base material layer 101A and a second base material layer 101B), electrodes 102, connectors 103, conductive wires 104, limit modules 105, adhesive tapes 106, Film 107 and two pieces of release paper (including a first release paper 108A and a second release paper 108B).

According to an embodiment of the present invention, the electrode unit 100 is fixed on the skin of the subject by the first base material layer 101A. A high quality medical pressure sensitive adhesive can be coated on the bottom surface of the first substrate layer 101A by a through-air coating process. In some embodiments, the first base material layer 101A can maintain the viscosity for 3 to 5 days even when the test subject using the electrode unit 100 sweats. The first base material layer 101A may include one or more through holes, and the through holes may be disposed widely spaced and uniformly distributed in the first base material layer 101A. In some embodiments, the through hole may be circular or square. As shown in FIG. 2 , electrodes 102 may be placed in through holes in the first substrate layer 101A to contact the skin of a human body, and may be configured to collect electrocardiographic signals from a subject such as a human body. The diameter of the through hole in the first base material layer 101A may be about 4 mm to 19 mm, which may be slightly smaller than the diameter of the electrode 102. Therefore, the electrode 102 can be stably inserted into the first base material layer 101A without displacement. The conductive thread 104 may be placed on the first base material layer 101A, and may be fixed by means of bonding or sewing. The second base material layer 101B may be disposed on a portion of the conductive line 104 and a portion of the electrode 102 . The upper surface of the conductive line 104 and the upper surface of the electrode 102 may be adhered to the bottom surface of the second base material layer 101B. Therefore, the conductive wire 104 , the first base material layer 101A and the second base material layer 101B can be stably fixed to achieve the visual integrity of the electrode unit 100 . Conductive lines 104 may be configured to electrically connect electrodes 102 and connectors 103 . In some embodiments, one end of the conductive line 104 may be placed on the electrode 102 . In some embodiments, the other end of the conductive wire 104 may be connected to one end of the connector 103 . The connector 103 may cover the other end of the conductive wire 104 .

The limiting module 105 can be connected to the second base material layer 101B and can be placed on the conductive wire 104 . One or more connectors 103 may be evenly distributed inside the limiting module 105 . As shown in FIG. 2 , for example, the two connectors 103 may be distributed within different ends of the limiter module 105 .

In some embodiments, the connector 103 may connect with the conductive wire 104 to establish an electrical connection. In one or more gaps between the connector 103 and the limiting module 105 , the adhesive tape 106 can be used to strengthen the contact between the ECG signal acquisition device and the connector 103 . The thin film 107 may be formed on the second base material layer 101B to cover the upper surface and the edge of the electrode unit 100 . Limit module 105, connector 103 and tape 106 may be exposed through openings in film 107 for direct access. In some embodiments, the openings in the second substrate layer 101B and the openings in the film 107 may be aligned. The film 107 may be directly bonded to the second base material layer 101B through a gelling agent. The first release paper 108A may cover the bottom of the electrode unit 100 and the edge of the membrane 107 , and the second release paper 108B may cover the exposed surface inside the limiting module 105 . The first release paper 108A and the second release paper 108B may have openings or protrusions for easy peeling of the first release paper 108A and/or the second release paper 108B in use. When the electrode unit 100 is not used, the first release paper 108A and the second release paper 108B can be used as protective media for the electrode unit 100 .

The electrode unit 100 provided by the present invention may have one or more advantages, such as simple structure, light weight and convenient use. This design of the present invention can increase the adhesive tightness to the skin and reduce motion artifacts. The utility model can implement electrocardiographic monitoring during exercise and bathing, and can also implement long-term dynamic electrocardiographic monitoring.

FIG. 3 is a schematic diagram illustrating the components of the electrode unit 100 according to the present invention.

As shown in FIG. 3 , the electrode unit 100 includes two layers of base material 101 (including a first base material layer 101A and a second base material layer 101B), and a thin film 107 . As can be seen from FIG. 3 , during assembly, the components of the electrode unit 100 may be formed between the film 107 and the first substrate layer 101A, including electrodes 102 , connectors 103 , conductive wires 104 , limit modules 105 and adhesive tapes 106. The electrodes 102 may be inserted into the through holes of the first base material layer 101A. The conductive line 104 may be interposed between the first base material layer 101A and the second base material layer 101B. In some embodiments, one end of the conductive wire 104 may be placed on the electrode 102 . In some embodiments, the other end of the conductive wire 104 may be connected to one end of the connector 103 . The connector 103 may cover the other end of the conductive wire 104 . In some embodiments, conductive lines 104 may be configured to electrically connect electrodes 102 and connectors 103 . The connector 103 may be located inside the limiting module 105 . The adhesive tape 106 can be applied in the gap between the connector 103 and the limiting module 105 . Therefore, the electrode unit 100 and the ECG signal acquisition device can be connected tightly and stably to avoid any displacement. The limiting module 105, as well as the connector 103 and the tape 106 inside the limiting module 105, can be exposed through the opening in the film 107 for direct insertion. The membrane 107 may enable the electrode unit 100 to be used in a bath. For the convenience of operation, the first release paper 108A may cover the bottom surface of the electrode unit 100 , and the second release paper 108B may cover the exposed surface inside the limiting module 105 . The electrode unit 100 may be used after peeling off the first release paper 108A and the second release paper 108B.

FIG. 4 is a schematic diagram illustrating the electrode unit of FIG. 1 placed on a measured object according to an embodiment of the present invention.

As shown in FIG. 4 , when the measured object is in a stationary state, the electrode unit 400 in the original state is fixed to the left chest of the measured object taking the human body as an example. In some embodiments, the electrode unit 100 may be secured to the left chest of the subject when the subject has chest expanding motion. In some embodiments, the electrode unit 100 may have approximately the same amount of stretch as a human muscle stretches. The long-term monitoring of a person's electrocardiographic signal can be implemented by connecting the electrode unit 100 with a corresponding electrocardiographic information monitoring device. When human skin is deformed, eg, stretched compared to a resting state, the electrode unit 400 in the original state may be stretched to approximately the same degree, becoming the electrode unit 410 in the stretched state.

In some embodiments, the electrode unit 100 of the present invention can be used as follows: First, peel off the first release paper 108A at the bottom of the electrode unit 100 . Second, the electrode unit 100 is directly adhered to the subject to be measured, such as human skin, for example, the skin of the human left breast (as shown in FIG. 4 ). Third, peel off the second release paper 108B inside the limiting module 105 . Then, the connector 103 is connected to the conductive metal sheet of the ECG signal acquisition device by means of the adhesive tape 106, so as to quickly implement the ECG signal monitoring. The long-term monitoring of a person's electrocardiographic signal can be implemented by connecting the electrode unit 100 with an electrocardiographic information monitoring device. In some embodiments, an ECG signal acquisition device may include one or more components, such as including a controller, signal processing hardware, data storage hardware, communication hardware, and user interface components. In some embodiments, the ECG information monitoring device may include suitably configured hardware and/or software components for processing the signals from the electrode unit 100 and for generating corresponding ECG waveforms for display. These components can be configured to provide specific functionality using appropriately coded software.

Although the present invention is disclosed in the above preferred embodiments, it is not intended to limit the protection scope of the present invention. Those skilled in the art can make possible changes and modifications without departing from the spirit and scope of the present invention. Therefore, without departing from the content of the technical solutions of the present invention, any modifications, equivalent transformations and modifications made to the above-mentioned utility model according to the technical essence of the present invention shall be included in the protection scope of the claims of the present invention within.

Claims (16)

1. An electrode unit for measuring electrophysiological signals, wherein the electrode unit comprises: Matrix material; electrode; Connector; Conductive wire; limit module; and film, Wherein, the base material includes a first base material layer and a second base material layer, wherein, the electrode is inserted into the opening of the first base material layer, Wherein, the conductive wire is placed on the first base material layer, wherein the conductive wire connects the electrode and the connector, Wherein, the connector is placed inside the limit module, Wherein, the limit module is placed in the opening of the film, wherein the second substrate layer is placed on top of the conductive lines, and Wherein, the film is placed on the first substrate layer and the second substrate layer. 2 . The electrode unit for measuring electrophysiological signals according to claim 1 , further comprising an adhesive tape, wherein the adhesive tape is applied in the gap between the connector and the limiting module. 3 . 3 . The electrode unit for measuring electrophysiological signals according to claim 1 , further comprising a first release paper and a second release paper. 4 . 4. The electrode unit for measuring electrophysiological signals according to claim 1, wherein the base material comprises an elastic material made of non-woven fabric, cotton, polyester fiber, nylon or nylon. 5 . The electrode unit for measuring electrophysiological signals according to claim 1 , wherein the elasticity of the base material is equal to the elasticity of human muscles. 6 . 6 . The electrode unit for measuring electrophysiological signals according to claim 1 , wherein the bottom surface of the base material is coated with a sticky gel dedicated to human skin. 7 . 7. The electrode unit for measuring electrophysiological signals according to claim 6, wherein the adhesive gel dedicated to human skin includes a menthol component. 8. The electrode unit for measuring electrophysiological signals according to claim 1, wherein the electrodes comprise conductive paste, conductive gel or composite dry electrodes. 9. The electrode unit for measuring electrophysiological signals according to claim 8, wherein the electrode comprises a menthol component. 10. The electrode unit for measuring electrophysiological signals of claim 1, wherein the connector comprises a conductive gel. 11 . The electrode unit for measuring electrophysiological signals according to claim 1 , wherein the conductive wire comprises a conductive wire wound by metal wire or a conductive webbing woven from polyester fiber. 12 . 12. The electrode unit for measuring electrophysiological signals according to claim 1, wherein the conductive wire has the same elasticity as the base material. 13. The electrode unit for measuring electrophysiological signals according to claim 1, wherein the limiting module comprises a biocompatible polymer material. 14. The electrode unit for measuring electrophysiological signals according to claim 1, wherein the membrane is made of a diaphragm. 15. The electrode unit for measuring electrophysiological signals of claim 1, wherein the membrane comprises extensibility, water resistance and breathability. 16 . The electrode unit for measuring electrophysiological signals according to claim 2 , wherein the adhesive tape, the connector and the limiting module realize the connection between the electrode unit and the ECG signal acquisition device together. 17 . function.

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