Flexible electrocardio-electrode

Abstract

The utility model relates to the technical field of electrocardio measurement equipment, and provides a flexible electrocardio electrode which comprises a flexible electrode layer, an upper covering layer and a lower covering layer. The upper covering layer covers the front surface of the flexible electrode layer, and the lower covering layer covers the back surface of the flexible electrode layer; the flexible electrode layer comprises two acquisition electrodes; each of the two acquisition electrodes comprises a substrate layer, a gel conductive layer and a printed electrode which are stacked in sequence; an electrode reserved position through hole corresponding to the substrate layer is formed in the lower covering layer; the flexible electrode layer is of a V-shaped structure, and the included angle formed by intersection of extension lines of the left end and the right end is 90-180 degrees. According to the flexible electrocardio-electrode, the printed electrode can be fully attached to the skin of the human body, attaching is stable, falling is not likely to happen, electric signals can be stably collected, and the signal quality is improved; meanwhile, the flexible electrocardio-electrode is light in weight, thin and convenient to carry.

Description

Technical Field

[0001] The present application relates to the technical field of electrocardiogram measurement equipment, and in particular to a flexible electrocardiogram electrode. Background Art

[0002] Cardiovascular disease is the number one killer threatening human health. Arrhythmia may occur suddenly and cause sudden death, and may also continue to affect the heart and cause it to fail. Electrocardiogram (ECG) is an important physiological signal of the human body. It is used to measure the real-time biological signal of human heart activity. Its measurement results are widely used in clinical monitoring of heart function and analysis of heart pathology. ECG electrodes are key materials for collecting ECG signals. As devices that are in direct contact with the object being measured in daily ECG monitoring systems, the quality of their performance directly affects the data output of ECG monitoring equipment.

[0003] At present, the clinical monitoring equipment in hospitals cannot meet people's needs for daily ECG monitoring due to its large size and numerous wires. Existing wearable ECG measurement equipment still has problems such as easy sensitization during long-term use, easy to fall off during daily use, continuous deterioration of signal quality, and large motion artifacts due to the immature development of electrodes. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present application is to provide a flexible ECG electrode, aiming to solve the problems in the prior art that the existing ECG measurement equipment is not light enough and is easy to fall off, and the signal quality is poor.

[0005] The technical solution adopted by the present application to solve the technical problem is as follows: a flexible ECG electrode, comprising a flexible electrode layer, an upper covering layer and a lower covering layer; the upper covering layer covers the front side of the flexible electrode layer, and the lower covering layer covers the back side of the flexible electrode layer;

[0006] The flexible electrode layer includes two collection electrodes;

[0007] The two collection electrodes each include a base layer, a gel conductive layer and a printed electrode stacked in sequence;

[0008] The lower cover layer is provided with a through hole for a reserved electrode position corresponding to the base layer;

[0009] The flexible electrode layer is a V-shaped structure, and the angle between the extended lines of the left end and the right end is 90-180°.

[0010] Optionally, the two collecting electrodes are respectively arranged as a left collecting electrode and a right collecting electrode, the left collecting electrode is arranged at the left end of the flexible electrode layer, and the right collecting electrode is arranged at the right end of the flexible electrode layer; the distance between the left collecting electrode and the right collecting electrode is 50-200mm.

[0011] Optionally, the gel conductive layer has a diameter of 10-30 mm and a thickness of 0.5-2 mm.

[0012] Optionally, a surface of the printed electrode away from the base layer corresponds to the electrode reserved position through hole.

[0013] Optionally, a release film layer is further included, and the release film layer covers the lower surface of the lower covering layer.

[0014] Optionally, a first semi-open opening is provided in the middle of the lower covering layer; and a second semi-open opening corresponding to the first semi-open opening is provided in the middle of the release film layer.

[0015] Optionally, the upper covering layer corresponds to the lower covering layer and is a V-shaped structure.

[0016] Optionally, the upper cover layer is sealingly connected to the lower cover layer.

[0017] Optionally, the flexible electrode layer further includes a control component and a flexible wire; the flexible wire connects the control component to the two collection electrodes.

[0018] Optionally, a reserved position corresponding to the control component is provided in the middle of the upper covering layer.

[0019] Compared with the prior art, the present application provides a flexible ECG electrode, which enables the printed electrode to be attached to the human skin through the gel conductive layer through the combination of an upper covering layer, a lower covering layer, and a flexible electrode layer; and the V-shaped layout of the flexible electrode layer enables the printed electrode to be bent to a suitable posture, effectively increasing the contact area between the electrode and the human skin, and further enables the printed electrode to be fully attached to the human skin, with stable attachment and not easy to fall off, and can stably collect electrical signals and improve signal quality; at the same time, the flexible ECG electrode has a simple structure, is light and thin, and is easy to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of a flexible ECG electrode provided in this application;

[0021] Figure 2 It is a schematic diagram of the disassembly of the flexible ECG electrode provided in this application;

[0022] Figure 3 It is a schematic diagram of the splitting of the flexible ECG electrode provided in the present application from another perspective;

[0023] Figure 4 It is a schematic diagram of the transition between the normal state and the installed state of the flexible ECG electrode provided in this application;

[0024] Description of reference numerals:

[0025] 1. Upper covering layer; 11. Reserved position; 2. Flexible electrode layer; 21. Flexible wire; 22. First base layer; 23. Second base layer; 24. First gel conductive layer; 25. Second gel conductive layer; 26. First printed electrode; 27. Second printed electrode; 3. Lower covering layer; 31. First semi-open opening; 32. Through hole for the reserved position of the first electrode; 33. Through hole for the reserved position of the second electrode; 34. Semi-open opening for the first installation state; 4. Release film layer; 41. Second semi-open opening; 42. Semi-open opening for the second installation state. DETAILED DESCRIPTION

[0026] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0027] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0028] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] Please refer to Figure 1-3In the first embodiment of the present application, a flexible ECG electrode is provided, which can be placed on human skin for ECG detection; the flexible ECG electrode includes a flexible electrode layer 2, an upper covering layer 1 covering the front of the flexible electrode layer 2, and a lower covering layer 3 covering the back of the flexible electrode layer 2.

[0030] Among them, the flexible electrode layer 2 is a V-shaped structure, and the angle between the extended lines of the left end and the right end is 90-180°. When the angle is too small, such as less than 90 degrees, the electrodes at both ends of the collected signal will be too close to each other, thereby affecting the collection effect of the ECG signal.

[0031] The flexible electrode layer 2 includes two collection electrodes, which can be respectively set as a left collection electrode and a right collection electrode, the left collection electrode is set at the left end of the flexible electrode layer 2, and the right collection electrode is set at the right end of the flexible electrode layer 2. In some embodiments, the flexible electrode layer 2 also includes a control component, which is specifically a printed circuit board and / or a battery; the control component is connected to the left collection electrode and the right collection electrode through a flexible wire 21.

[0032] The collection electrode of the flexible electrode layer 2 includes a base layer, a printed electrode and a gel conductive layer stacked in sequence; that is, one side of the printed electrode is connected to the gel conductive layer, and the other side is connected to the base layer. The lower cover layer 3 is provided with an electrode reserved position through hole corresponding to the base layer. In some embodiments, the side of the printed electrode away from the base layer corresponds to the electrode reserved position through hole. The gel conductive layer is embedded in the electrode reserved position through hole.

[0033] The gel conductive layer is composed of polymer materials, bioelectrolytes and auxiliary materials; the polymer materials are water-soluble polymers, which can be synthetic polymers or natural polymer materials such as polyvinyl alcohol, polyacrylamide, water-soluble cellulose, chitosan, sodium alginate, etc.; the bioelectrolytes are responsible for charge transfer, which can be water-soluble salts, especially citrate, betaine, etc.; the auxiliary materials are to increase the stability of the gel and the interface viscosity, which can generally be polyols, propylene glycol, mannitol, glucitol, etc. The gel conductive layer has good interface adhesion, with an adhesion force greater than 15N / m; adhesion stability, can be reused more than 100 times; has good storage stability, can be stored at room temperature for more than 12 months, high flexibility, material modulus is less than 200kPa; has extremely strong ductility, more than 200%; has good compliance, can fit the skin well, and will not produce interface gaps due to movement, affecting the reliability and stability of ECG monitoring.

[0034] The collection electrode of the flexible electrode layer 2 plays a decisive role in whether the collected electrical signal is stable or not; the diameter and thickness of the collection electrode should not be too large, and the maximum diameter is set to 30mm and the maximum thickness is 2mm; the diameter of the collection electrode should not be too small, and it should be at least larger than the diameter of the printed electrode. If the diameter of the collection electrode is too small, it will affect the stable adhesion effect with the skin, and the minimum diameter is set to 10mm; when the thickness of the collection electrode is too large, the intensity of the electrical signal collected by the electrode is weakened and the stability is reduced; when the thickness of the collection electrode is too small, the adhesion of the conductive layer is weakened, and the stability of the electrical signal collected by the electrode is reduced.

[0035] In some embodiments, the gel conductive layer corresponds to the collection electrode, has a diameter of 10-30 mm, and a thickness of 0.5-2 mm; preferably, the gel conductive layer has a diameter of 18 mm and a thickness of 0.6 mm.

[0036] The upper cover layer 1 plays the role of fixing the flexible electrode layer 2 and connecting the lower cover layer 3, and can prevent foreign matter from entering the flexible electrode layer 2 to damage the printed electrode and affect the collection of electrical signals.

[0037] The lower covering layer 3 serves to fix the flexible electrode layer 2 and connect the upper covering layer 1 , and at the same time enables the flexible ECG electrodes to adhere stably to the skin during use.

[0038] The upper cover layer 1 and the lower cover layer 3 are both made of flexible materials. The upper cover layer 1 can be made of flexible foam material; the lower cover layer 3 can be made of double-sided adhesive foam material. The lower cover layer 3 is connected to the upper cover layer 1 on one side close to the flexible electrode layer 2, and the other side is used to adhere to the skin. In some embodiments, the thickness of the upper cover layer 1 and the lower cover layer 3 is 0.2-1 mm, specifically 0.5 mm.

[0039] The printed electrodes in the flexible electrode layer 2 are attached to the human skin through the gel conductive layer and the electrode reserved through-holes of the lower covering layer 3, so as to collect the ECG electrical signal information in the human skin. At the same time, the V-shaped structure based on the flexible electrode layer 2 enables the printed electrodes to be bent to a suitable posture, effectively increasing the contact area between the electrodes and the human skin, and further enables the printed electrodes to be fully attached to the human skin, with stable attachment and not easy to fall off, and can stably collect electrical signals and improve signal quality. In addition, the flexible electrode layer 2, the upper covering layer 1 and the lower covering layer 3 included in the flexible ECG electrode can all be made of relatively thin materials, so that the overall weight is light and easy to carry.

[0040] In some embodiments, the flexible ECG electrode further includes a release film layer 4, which covers the lower surface of the lower covering layer 3. The function of the release film layer 4 is to preserve the flexible ECG electrode, that is, when the flexible ECG electrode is ready for use, the release film layer 4 covers the lower surface of the lower covering layer 3, thereby ensuring the adhesion of the lower surface of the lower covering layer 3; when the flexible ECG electrode needs to be used, the release film layer 4 is torn off, and the flexible ECG electrode can be attached to human skin through the lower surface of the lower covering layer 3. The release film layer 4 can be made of PET release film, which is easy to tear off.

[0041] In some embodiments, a reserved position 11 corresponding to the control component is provided in the middle of the upper cover layer 1; the reserved position 11 is used to place the control component, that is, to place a printed circuit board and / or a battery, and the printed circuit board and / or the battery supply power to the printed electrode through a flexible wire 21. Specifically, the internal space formed by the upper cover layer 1 and the lower cover layer 3 includes two collection electrodes of the flexible electrode layer 2, the flexible wire 21, and the control component.

[0042] In some embodiments, the left end of the flexible electrode layer 2 is a left collection electrode, and the right end is a right collection electrode; the distance between the left collection electrode and the right collection electrode is 50-200 mm, so as to prevent the stability and accuracy of the electrical signal from being reduced due to the electrodes being too close or too far apart, thereby affecting the collection effect of the electrical signal.

[0043] In some embodiments, the left collection electrode includes a first printed electrode 26, a first gel conductive layer 24 and a first base layer 22, and the right collection electrode includes a second printed electrode 27, a second gel conductive layer 25 and a second base layer 23; one side of the first printed electrode 26 is connected to the first gel conductive layer 24, and the other side is connected to the first base layer 22; one side of the second printed electrode 27 is connected to the second gel conductive layer 25, and the other side is connected to the second base layer 23.

[0044] The lower cover layer 3 is provided with a first electrode reserved position through hole 32 corresponding to the first substrate layer 22, and a second electrode reserved position through hole 33 corresponding to the second substrate layer 23. Specifically, the diameter of the first substrate layer 22 is greater than or equal to the first electrode reserved position through hole 32, and similarly, the diameter of the second substrate layer 23 is greater than or equal to the second electrode reserved position through hole 33, so as to serve as a substrate layer, so that the gel conductive layer is embedded in the electrode reserved position through hole.

[0045] In some embodiments, the upper cover layer 1 corresponds to the lower cover layer 3, covers the flexible electrode layer 2, and both have a V-shaped structure; the surface area of ​​the upper cover layer 1 and the lower cover layer 3 can be greater than or equal to the flexible electrode layer 2 to achieve full coverage of the flexible electrode layer 2. The upper cover layer 1 can be sealed and connected to the lower cover layer 3, specifically, it can be sealed and connected by adhesive, and the position of the adhesive needs to avoid the gel conductive layer to prevent affecting the electrical signal.

[0046] Please refer to Figure 4 In some embodiments, a first semi-open opening 31 is provided in the middle of the lower cover layer 3; a second semi-open opening 41 corresponding to the first semi-open opening 31 is provided in the middle of the release film layer 4; the first semi-open opening 31 and the second semi-open opening 41 are used to open and close the space formed by the upper cover layer 1 and the lower cover layer 3. The space formed by the upper cover layer 1 and the lower cover layer 3 can be opened by pulling the first semi-open opening 31 to the first installation state semi-open opening 34, and the second semi-open opening 41 to the second installation state semi-open opening 42, and the state of the flexible electrode layer 2 can be observed, and the printed circuit board and / or battery in the reserved position 11 of the flexible ECG electrode can be replaced; the control part of the flexible ECG electrode can be replaced, and it is not a disposable product, which improves the practicality of the flexible ECG electrode and prolongs the service life of the flexible ECG electrode.

[0047] In the normal state, the first semi-open opening 31 and the second semi-open opening 41 of the flexible ECG electrode of the present application are a closely fitting pore. In the installed state, the first semi-open opening 31 is pulled to the first installed state semi-open opening 34, and the second semi-open opening 41 is pulled to the second installed state semi-open opening 42, so that an opening is opened in the space formed by the upper covering layer 1 and the lower covering layer 3, so as to facilitate the replacement or installation of the printed circuit board and / or the battery; the installed state here refers only to the installation of the control part, i.e., the printed circuit board and / or the battery, rather than the state when the flexible ECG electrode is installed on the surface of the human skin when in use.

[0048] In summary, the present application provides a flexible ECG electrode, which, through the combination of an upper covering layer, a lower covering layer, and a flexible electrode layer, enables the printed electrode to be attached to the human skin through the gel conductive layer; and the V-shaped layout of the flexible electrode layer enables the printed electrode to be bent to a suitable posture, effectively increasing the contact area between the electrode and the human skin, and further enables the printed electrode to be fully attached to the human skin, with stable attachment and not easy to fall off, and can stably collect electrical signals and improve signal quality; at the same time, the flexible ECG electrode has a simple structure, is light and thin, and is easy to carry.

[0049] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above examples, a person of ordinary skill in the art should understand that he or she can still modify the technical solutions described in the above examples, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the examples of the present application.

Claims

1. A flexible ECG electrode, characterized in that: It comprises a flexible electrode layer, an upper covering layer and a lower covering layer; the upper covering layer covers the front side of the flexible electrode layer, and the lower covering layer covers the back side of the flexible electrode layer; The flexible electrode layer includes two collection electrodes; The two collection electrodes each include a base layer, a gel conductive layer and a printed electrode stacked in sequence; The lower cover layer is provided with a through hole for a reserved electrode position corresponding to the base layer; The flexible electrode layer is a V-shaped structure, and the angle between the extended lines of the left end and the right end is 90-180°.

2. The flexible ECG electrode according to claim 1, characterized in that: The two collecting electrodes are respectively arranged as a left collecting electrode and a right collecting electrode, the left collecting electrode is arranged at the left end of the flexible electrode layer, and the right collecting electrode is arranged at the right end of the flexible electrode layer; the distance between the left collecting electrode and the right collecting electrode is 50-200mm.

3. The flexible ECG electrode according to claim 1, characterized in that: The diameter of the gel conductive layer is 10-30 mm, and the thickness is 0.5-2 mm.

4. The flexible ECG electrode according to claim 1, characterized in that: A side of the printed electrode away from the base layer corresponds to the electrode reserved position through hole.

5. The flexible ECG electrode according to claim 1, characterized in that: It also includes a release film layer, which covers the lower surface of the lower covering layer.

6. The flexible ECG electrode according to claim 5, characterized in that: A first semi-open opening is arranged in the middle of the lower covering layer; and a second semi-open opening corresponding to the first semi-open opening is arranged in the middle of the release film layer.

7. The flexible ECG electrode according to claim 1, characterized in that: The upper covering layer corresponds to the lower covering layer and is a V-shaped structure.

8. The flexible ECG electrode according to claim 1, characterized in that: The upper cover layer is sealingly connected to the lower cover layer.

9. The flexible ECG electrode according to claim 1, characterized in that: The flexible electrode layer also includes a control component and a flexible wire; the flexible wire connects the control component to the two collection electrodes.

10. The flexible ECG electrode according to claim 9, characterized in that: A reserved position corresponding to the control component is arranged in the middle of the upper covering layer.

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