CN216854686U - Flexible stretchable electrocardio-electrode patch - Google Patents

Abstract

The utility model discloses a flexible stretchable electrocardio-electrode patch, which is characterized in that: including back sheet and base film, the base film is established on the back sheet, from up being equipped with tensile circuit layer, flexible electrode layer, conductive adhesive layer and leaving type paper layer from down on the base film in proper order, be equipped with the insulating layer on the flexible electrode layer, but tensile circuit layer one side is connected with flexible electrode layer coincidence contact, and the opposite side is concentrated and is drawn forth to the paster intermediate position as the line interface, conductive adhesive layer covers the surface of flexible electrode layer completely. The flexible electrocardio-electrode patch adopts the stretchable flexible material, so that the flexible electrocardio-electrode patch has flexible and bendable performance, can also ensure the signal acquisition and transmission capabilities under certain stretching performance, better adapts to the skin state of a human body, ensures the accuracy of acquiring electrocardiosignals and the effectiveness of transmitting electrocardiosignals of the human body under the dynamic condition, and improves the wearing comfort and the monitoring accuracy.

Description

Flexible stretchable electrocardio-electrode patch

Technical Field

The utility model relates to a flexible stretchable electrocardio-electrode patch, in particular to a flexible electrocardio-electrode patch suitable for the stretchable state of human skin.

Background

The electrocardiogram monitoring reflects the working state of the heart by detecting the potential difference (namely, lead) change of the heart electrical activity between specific two points on the body surface, can observe the electrocardiogram condition, provides reliable and valuable electrocardiogram indexes and feeds back the health information of the heart. The electrocardiogram monitoring has important use value for patients with abnormal electrocardiogram activities, such as acute myocardial infarction, various arrhythmia and the like.

Along with the development of wearable technology, noninvasive wearable electrocardio equipment capable of being attached to the market gradually and monitoring in real time. The wearable electrocardiogram monitoring can carry out long-range and continuous monitoring on heart diseases, perfect effective management on health information and construct a risk early warning model of the diseases, thereby realizing that the diagnosis and treatment mode of the diseases is changed from a traditional passive mode of 'attack-diagnosis-treatment' into an active health mode mainly aiming at prevention.

Although the traditional electrocardio-electrode patch can also be used on wearable electrocardio-monitoring equipment, a lot of inconvenience exists during the use, and taking single-lead electrocardio-monitoring equipment as an example, the electrode patch simultaneously bears the functions of position fixing and signal collection, and relative slippage easily occurs between the two electrode patches to influence the signal quality. In order to facilitate use, a composite patch appears on the market, namely, aiming at single-lead electrocardio monitoring equipment, an electrocardio-electrode patch is prepared in a customized mode, the patch is an integral body, and two or more electrocardio-monitoring electrodes are added at corresponding positions. For example, patent CN209018732U proposes an electrocardio-electrode patch compounded by two electrode sensors, in which two ends of the electrode patch are electrode collecting regions, the middle is an electrode buckle core body, and the electrode patch adopts a flexible circuit board and a double-sided adhesive foam material, so that the patch is locally flexible, but there are the following problems: the backing sheet uses the stereoplasm insulation board, has restricted the holistic flexibility of paster, and the paster is whole inextensible, and the person of wearing under the motion state or when making actions such as chest expansion, the skin surface distance of contacting with the electrode changes, receives the inextensible restriction of electrode paster, can produce and pull the sense, easily causes the slippage on electrode and skin surface, produces the noise, influences the travelling comfort of wearing and the accuracy of gathering electrocardiosignal.

Disclosure of Invention

The technical problem to be solved by the utility model is as follows: the existing electrocardio-electrode patch is not stretchable, and is easy to slide during use, thereby causing the dragging feeling and influencing the wearing experience and the monitoring accuracy.

In order to solve the problems, the technical scheme of the utility model provides a flexible stretchable electrocardio-electrode patch, which is characterized in that: including back sheet and base film, the base film is established on the back sheet, from up being equipped with tensile circuit layer, flexible electrode layer, conductive adhesive layer and leaving type paper layer from down on the base film in proper order, be equipped with the insulating layer on the flexible electrode layer, but tensile circuit layer one side is connected with flexible electrode layer coincidence contact, and the opposite side is concentrated and is drawn forth to the paster intermediate position as the line interface, conductive adhesive layer covers the surface of flexible electrode layer completely.

Preferably, the base film takes a PU film or a PE film as a substrate, and the stretchable circuit layer, the flexible electrode layer and the insulating layer are formed by sequentially coating the stretchable circuit paste, the electrode paste and the insulating paste on the surface of the base film from bottom to top.

Preferably, the tensile rate of the base film is more than or equal to 10%, the elastic modulus is 1-10MPa, and the thickness is 6-100 μm.

Preferably, the two ends of the backing layer are provided with collecting electrode regions of the flexible electrode layer, and the collecting electrode regions are connected to the data interface through the stretchable circuit layer and output collected electrocardiosignals.

Preferably, the thickness of the stretchable circuit layer is 5-20 μm, the sheet resistance is less than or equal to 5 omega/□, and the change of the stretchable circuit resistance is less than 20 times when the stretching rate is 10%.

Preferably, the insulating layer has a thickness of 20 to 100 μm and does not break at a stretch ratio of 10%.

Preferably, the line width of the stretchable circuit layer is 0.4-1mm, and the spacing is more than or equal to 0.5 mm.

Preferably, the edge of the conductive adhesive layer exceeds the edge of the acquisition electrode area, and the thickness of the conductive adhesive layer is 20-100 μm.

Preferably, the electrode shape of the flexible electrode layer is circular, and the thickness of the flexible electrode layer is 5-20 μm.

Preferably, the electrode slurry is silver chloride slurry or graphene slurry.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model is suitable for wearable electrocardio monitoring equipment, can carry out continuous long-term monitoring, and is used for collecting and transmitting human electrocardiosignals such as heart monitoring, dynamic heart function measurement and the like. The flexible electrocardio-electrode patch is made of stretchable flexible materials, so that the flexible electrocardio-electrode patch not only has flexible and bendable performance, but also can ensure the signal acquisition and transmission capabilities under certain stretching performance, better adapt to the skin state of a human body, ensure the accuracy of acquiring electrocardiosignals and the effectiveness of transmitting electrocardiosignals of the human body under the dynamic condition, and improve the wearing comfort and the monitoring accuracy.

According to the utility model, the electrocardiosignals collected by the electrocardioelectrode are led out in a centralized manner through the stretchable circuit layer, so that the electrocardiosignal monitoring device is conveniently connected with wearable electrocardio monitoring equipment; only one communication interface is used, and the electrode patch cannot be influenced by hard monitoring equipment when being stretched and deformed.

Drawings

FIG. 1 is a sectional view of a flexible stretchable electrocardioelectrode patch structure of the present invention.

Detailed Description

In order to make the utility model more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.

As shown in fig. 1, the flexible stretchable electrocardio-electrode patch structure of the present invention comprises a backing layer 1, a base film 2, a stretchable circuit layer 3, a flexible electrode layer 4, an insulating layer 5, a conductive adhesive layer 6 and a release paper layer 7, wherein the patch main body uses the backing layer 1 as a substrate, and two ends of the backing layer 1 are collection electrode regions of the flexible electrode layer 4, which are used for collecting and conducting electrocardiosignals, and are connected to a data interface through the stretchable circuit layer 3 to output the collected electrocardiosignals.

The flexible material is selected as a base film 2, functional layers such as a stretchable circuit layer 3, a flexible electrode layer 4, an insulating layer 5 and the like are borne, the base film 2 of the flexible material is preferably a PU (polyurethane) film material, and can also be selected from PE (polyethylene) and the like, the stretching rate is more than or equal to 10%, the elastic modulus is 1-10MPa, the thickness is controlled to be 6-100 mu m, and the flexibility of the material is ensured.

The stretchable circuit layer 3, the flexible electrode layer 4 and the insulating layer 5 are formed by sequentially coating stretchable circuit paste, electrode paste and insulating paste on the surface of the base film 2 by using coating techniques including, but not limited to, screen printing, ink-jet printing and the like.

The thickness of the stretchable circuit layer 3 is 5-20 μm, and the stretchable circuit layer not only has flexible and bendable performance, but also can ensure that the stretchable circuit layer still has conductive capability under certain stretching performance and can transmit electrocardiosignals. The tensile circuit square resistance is less than or equal to 5 omega/□, and when the tensile rate is 10%, the change of the circuit resistance is less than 20 times. One side of the stretchable circuit layer 3 is connected with the acquisition electrode area of the flexible electrode layer 4, the other side of the stretchable circuit layer is led out to the middle position of the patch in a centralized manner, the line width of the stretchable circuit layer 3 is 0.4-1mm, the distance is not less than 0.5mm, and the stretchable circuit layer is connected with a data interface of wearable electrocardiogram monitoring equipment.

The electrode slurry can be selected from silver chloride slurry, graphene slurry and the like, after drying, the flexible electrode layer 4 is prepared, the shape of the electrode is preferably circular, the diameter is 10-30mm, preferably 20-25mm, other shapes such as square, triangle, rectangle and the like can be selected, and the thickness of the flexible electrode layer 4 is 5-20 μm.

The insulating layer 5 is arranged on the surface of the stretchable circuit layer 3, the insulating paste has stretchability and does not break when the stretching ratio is 10%, and the thickness of the insulating layer 5 is 20-100 μm, and the insulating layer covers the area outside the electrode and line interfaces in the stretchable circuit layer 3 to prevent the line part from contacting the skin.

The conductive adhesive layer 6 is arranged on the surface of the flexible electrode layer 4, has certain viscosity, has the thickness of 20-100 mu m, completely covers the conductive button and the surface of the flexible electrode layer 4, and has the edge which can exceed the edge of the flexible electrode layer 4 by 0-0.5mm, thereby ensuring the close contact between the skin and the electrode.

In the embodiment, the stretchable circuit layer 3 has a thickness of about 10 μm, the flexible electrode layer 4 has a thickness of about 7 μm, the circuit width is 0.6mm, the distance between the stretchable circuit layer and the flexible electrode layer is 1.5mm, the insulating layer 5 has a thickness of 30 μm, and the conductive adhesive layer 6 completely covers the surface of the flexible electrode layer 4 and exceeds the edge of the electrode area by about 0.5mm, so that the insulation between the skin of a human body and the flexible circuit is ensured.

The base film 2 takes a flexible material as a substrate, has good stretchability, is provided with the stretchable circuit layer 3, the flexible electrode layer 4 and the insulating layer 5 in sequence on the surface, is flexible as a whole, can be bent and adapts to stretching to a certain degree; but stretching circuit one side connection electrode, the opposite side is concentrated and is drawn forth, with the data interface connection who dresses electrocardio monitoring facilities, is favorable to monitoring facilities's miniaturization and reduces the restriction of hardware equipment to paster tensile properties, can adapt to human skin flexible, state of stretching, and is simple and convenient with wearable electrocardio monitoring facilities interface connection, compromises the travelling comfort of wearing, the accuracy of signal and the convenience of use.

Claims (10)

1. A flexible stretchable electrocardio-electrode patch is characterized in that: including back sheet (1) and base film (2), establish on back sheet (1) base film (2), but base film (2) are gone up from up down to be equipped with in proper order tensile circuit layer (3), flexible electrode layer (4), conductive adhesive layer (6) and leave type paper layer (7), be equipped with insulating layer (5) on flexible electrode layer (4), but tensile circuit layer (3) one side and flexible electrode layer (4) coincidence contact are connected, and the opposite side is concentrated and is drawn forth to the paster intermediate position as line interface, conductive adhesive layer (6) cover the surface of flexible electrode layer (4) completely.

2. A flexible stretchable electrocardio-electrode patch according to claim 1 wherein: the base film (2) takes a PU film or a PE film as a substrate, and stretchable circuit slurry, electrode slurry and insulating slurry are sequentially coated on the surface of the base film (2) from bottom to top to form a stretchable circuit layer (3), a flexible electrode layer (4) and an insulating layer (5).

3. A flexible stretchable electrocardio-electrode patch according to claim 2 wherein: the tensile rate of the base film (2) is more than or equal to 10 percent, the elastic modulus is 1-10MPa, and the thickness is 6-100 mu m.

4. A flexible stretchable electrocardio-electrode patch according to claim 1 wherein: the two ends of the backing layer (1) are provided with collecting electrode regions of the flexible electrode layer (4), and the collecting electrode regions are connected to a data interface through the stretchable circuit layer (3) and output collected electrocardiosignals.

5. A flexible stretchable electrocardio-electrode patch according to claim 1 wherein: the thickness of the stretchable circuit layer (3) is 5-20 μm, the sheet resistance is less than or equal to 5 omega/□, and when the stretching rate is 10%, the change of the stretchable circuit resistance is less than 20 times.

6. A flexible stretchable electrocardio-electrode patch according to claim 1 wherein: the thickness of the insulating layer (5) is 20-100 μm, and the insulating layer does not break when the elongation is 10%.

7. A flexible stretchable electrocardio-electrode patch according to claim 1 wherein: the line width of the stretchable circuit layer (3) is 0.4-1mm, and the distance is more than or equal to 0.5 mm.

8. A flexible stretchable electrocardio-electrode patch according to claim 1 wherein: the edge of the conductive adhesive layer (6) exceeds the edge of the acquisition electrode area, and the thickness of the conductive adhesive layer (6) is 20-100 mu m.

9. A flexible stretchable electrocardio-electrode patch according to claim 1 wherein: the electrode shape of the flexible electrode layer (4) is circular, and the thickness of the flexible electrode layer (4) is 5-20 mu m.

10. A flexible stretchable electrocardio-electrode patch according to claim 2 wherein: the electrode slurry is silver chloride slurry or graphene slurry.

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