Electrocardiograph detection electrode and preparation method thereof

Abstract

The invention discloses an electrocardio detection electrode and a preparation method thereof.The electrocardio detection electrode comprises a metal woven layer, the metal woven layer comprises a plurality of metal rings which are buckled with one another, the metal woven layer comprises a center main body part and a plurality of radiation parts, and the radiation parts are connected with the center main body part and distributed around the center main body part in a circumferential array mode; the adhesion layer is adhered to the metal woven layer, the adhesion layer is filled in the grids defined by the metal rings, and the surface of the adhesion layer and the surfaces of the metal rings are in direct contact with the skin of the patient; and the conductive device is connected with the metal woven layer. The metal woven layer is used as the main structure of the electrocardiograph detection electrode, and the fabric can be better bent, so that the electrocardiograph detection electrode can be better attached to the skin of a patient to conduct electric signals, is convenient to wear and is not easy to loosen when the patient moves; the adhesive layer is filled in the grids of the metal woven layer, so that the whole thickness of the two layers is reduced, the dead weight can be reduced as much as possible on the premise that the electrode is adhered to the skin of a patient, and long-time adhesion of the electrocardiogram detection electrode is facilitated.

Description

Technical Field

[0001] The present invention relates to the field of electrocardiogram monitoring, and in particular to an electrocardiogram detection electrode and a preparation method thereof. Background Art

[0002] ECG monitoring is an important means of screening, diagnosing and warning of cardiovascular diseases. It generally involves attaching ECG detection electrodes to the patient's skin and using the conductive material on the electrodes to transmit the heart's electrical signals to the ECG instrument. When the heart contracts and relaxes, the potential changes generated are sensed and recorded by the electrodes, thereby completing the continuous monitoring of the patient's heartbeat.

[0003] The electrodes commonly used in ECG monitoring are traditional gel electrodes, which have a certain degree of elasticity and are sticky enough to adhere to the patient's skin. However, the gel material is not breathable, and its elasticity and stretchability will deteriorate after long-term use, making the patient feel uncomfortable after wearing it. In severe cases, it may even cause skin redness, swelling, and allergies. Moreover, the gel is heavy, and there is a risk of loosening and falling during long-term adhesion, which can cause interruptions in ECG detection, making it unfavorable for long-term ECG monitoring. Nurses or doctors need to regularly check whether the electrodes are still stably adhered, which is not very convenient. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an electrocardiogram detection electrode, which has air permeability, better elasticity and stretchability, and reduces its own weight so as to stably adhere to the patient's skin.

[0005] The present invention also provides a method for preparing the electrocardiogram detection electrode.

[0006] An electrocardiogram detection electrode according to a first aspect of the present invention includes:

[0007] A metal woven layer, comprising a plurality of metal rings interlocked with each other, the metal woven layer comprising a central body portion and a plurality of radiating portions, the radiating portions being connected to the central body portion and distributed in a circumferential array around the central body portion;

[0008] An adhesive layer, which is bonded to the metal woven layer, the adhesive layer is filled in the grid surrounded by the metal ring, the surface of the adhesive layer and the surface of the metal ring are both in direct contact with the patient's skin, and the adhesive layer is sticky and adheres to the patient's skin;

[0009] A conductive device is connected to the metal woven layer and is used to transmit electrical signals to an external detection instrument.

[0010] The ECG detection electrode according to the embodiment of the present invention has at least the following beneficial effects: by using the metal woven layer as the main structure of the ECG detection electrode, the fabric can be bent better, so that it can be more closely attached to the patient's skin to conduct electrical signals, and is easy to wear and not easy to loosen when the patient moves; the adhesive layer is filled in the mesh of the metal woven layer, so that the overall thickness of the two layers becomes thinner, and the self-weight can be reduced as much as possible while being able to adhere to the patient's skin, thereby facilitating the long-term adhesion of the ECG detection electrode.

[0011] According to some embodiments of the present invention, the radiation portion is fan-shaped and has the center of the central body portion as the center of the circle.

[0012] According to some embodiments of the present invention, the metal woven layer further includes a connecting strip, two ends of which are respectively connected to the central body portion and the radiation portion.

[0013] According to some embodiments of the present invention, the axis line of the connecting strip is a curve, which is used to increase the tensile properties of the connecting strip.

[0014] According to some embodiments of the present invention, the connecting strip, the central body portion, and the radiating portion are attached to the patient's skin.

[0015] According to some embodiments of the present invention, the metal woven layer is specifically made of silver metal rings.

[0016] According to some embodiments of the present invention, the adhesive layer is specifically made of adhesive silicone.

[0017] According to some embodiments of the present invention, the ECG detection electrode further includes a lining cloth, and the lining cloth covers the metal woven layer.

[0018] The preparation method according to the second aspect of the present invention is used to prepare the above-mentioned electrocardiogram detection electrode, comprising the following steps:

[0019] Cutting the metal fabric using a laser cutting method to obtain the metal woven layer;

[0020] Preparing a polyvinyl alcohol solution, and evenly coating the polyvinyl alcohol solution on the surface of the metal fabric layer, and then placing it in a drying oven for drying to obtain a water-soluble film adhered to the surface of the metal fabric layer;

[0021] Turning the metal fabric layer over, applying sticky silica gel on the surface of the metal fabric layer, allowing the sticky silica gel to penetrate into the mesh of the metal ring, and then placing the metal fabric layer in a vacuum box for degassing;

[0022] Putting the metal fabric layer into a drying oven to dry, so that the adhesive silica gel solidifies, and obtaining the adhesive layer;

[0023] placing the metal fabric layer into water so that the water-soluble film is completely dissolved;

[0024] The conductive device is connected to the metal woven layer to complete the preparation of the electrocardiogram detection electrode.

[0025] The preparation method according to the embodiment of the present invention has at least the following beneficial effects: a water-soluble film adhered to the surface of the metal fabric layer is obtained by using a water-soluble polyvinyl alcohol solution, which is convenient for subsequent adhesive silicone coating, so that the adhesive silicone penetrates into the mesh of the metal ring to obtain an adhesive layer, and then the water-soluble film is removed. Such a process can make the adhesive layer and the surface of the metal fabric layer flush, and while the adhesive layer adheres to the patient's skin, the metal fabric layer can also directly contact the patient to conduct electrical signals.

[0026] According to some embodiments of the present invention, the ECG detection electrode also includes a lining cloth, which covers the metal fabric layer; when drying the sticky silicone, it is first dried at 30°C for 15 minutes, then the lining cloth is covered on the surface of the metal fabric layer, and finally dried at 60°C until the sticky silicone is completely cured.

[0027] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0029] Figure 1 A three-dimensional diagram of an electrocardiogram detection electrode according to an embodiment of the first aspect of the present invention;

[0030] Figure 2 A top view of an electrocardiogram detection electrode according to an embodiment of the first aspect of the present invention;

[0031] Figure 3 It is a partial enlarged view of the electrocardiogram detection electrode of the embodiment of the first aspect of the present invention;

[0032] Figure 4 A cross-sectional view of an electrocardiogram detection electrode according to an embodiment of the first aspect of the present invention;

[0033] Figure 5 It is a schematic diagram of forming a water-soluble film 500 on the surface of the metal woven layer 100 in the preparation method of the embodiment of the second aspect of the present invention;

[0034] Figure 6 It is a schematic diagram of forming an adhesive layer 200 in the preparation method of the embodiment of the second aspect of the present invention;

[0035] Figure 7This is a schematic diagram of the preparation method after the water-soluble film 500 is removed in the embodiment of the second aspect of the present invention.

[0036] Reference numerals: 100 - metal woven layer, 110 - metal ring, 120 - central body portion, 130 - radiation portion, 140 - connection strip, 200 - adhesive layer, 300 - conductive device, 400 - backing cloth, 500 - water-soluble film. DETAILED DESCRIPTION

[0037] Embodiments of the present invention are described in detail below, examples of which 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 invention, and cannot be understood as limiting the present invention.

[0038] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] In the description of the present invention, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0040] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0041] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0042] ECG monitoring is an important means of screening, diagnosing and warning of cardiovascular diseases. It generally involves attaching ECG detection electrodes to the patient's skin and using the conductive material on the electrodes to transmit the heart's electrical signals to the ECG instrument. When the heart contracts and relaxes, the potential changes generated are sensed and recorded by the electrodes, thereby completing the continuous monitoring of the patient's heartbeat.

[0043] The electrodes commonly used in ECG monitoring are traditional gel electrodes, which have a certain degree of elasticity and are sticky enough to adhere to the patient's skin. However, the gel material is not breathable, and its elasticity and stretchability will deteriorate after long-term use, making the patient feel uncomfortable after wearing it. In severe cases, it may even cause skin redness, swelling, and allergies. Moreover, the gel is heavy, and there is a risk of loosening and falling during long-term adhesion, which can cause interruptions in ECG detection, making it unfavorable for long-term ECG monitoring. Nurses or doctors need to regularly check whether the electrodes are still stably adhered, which is not very convenient.

[0044] In this regard, the present application proposes an ECG detection electrode, which uses a metal woven layer 100 as the main structure of the ECG detection electrode. The fabric can be bent better, so that it can be more closely attached to the patient's skin to conduct electrical signals. It is easy to wear and not easy to loosen when the patient moves. The adhesive layer 200 is filled in the grid of the metal woven layer 100, so that the overall thickness of the two layers becomes thinner, and the self-weight can be reduced as much as possible while being able to adhere to the patient's skin, thereby facilitating the long-term adhesion of the ECG detection electrode.

[0045] In addition, the present application also proposes a method for preparing the above-mentioned electrocardiogram detection electrode, using a water-soluble polyvinyl alcohol solution to obtain a water-soluble film 500 adhered to the surface of the metal fabric layer 100, which is convenient for subsequent adhesive silicone coating, so that the adhesive silicone penetrates into the grid of the metal ring 110 to obtain the adhesive layer 200, and then removes the water-soluble film 500. Such a process can make the adhesive layer 200 flush with the surface of the metal fabric layer 100, and while the adhesive layer 200 adheres to the patient's skin, the metal fabric layer 100 can also directly contact the patient to conduct electrical signals.

[0046] Reference Figure 1 and Figure 2 The electrocardiogram detection electrode in the embodiment of the first aspect of the present application comprises a metal woven layer 100, an adhesive layer 200 and a conductive device 300. The metal woven layer 100 is the main structure of the electrocardiogram detection electrode, which supports and maintains the shape of the electrocardiogram detection electrode. The adhesive layer 200 and the conductive device 300 are both connected to the metal woven layer 100. The adhesive layer 200 is sticky and is used to adhere to the patient's skin, thereby fixing the electrocardiogram detection electrode to the surface of the patient's skin. The conductive device 300 is used to conduct the electrical signal on the metal woven layer 100, thereby monitoring the patient's heartbeat condition.

[0047] Specifically, the metal woven layer 100 includes a plurality of metal rings 110 that are interlocked, and the metal rings 110 are interlocked to form the metal woven layer 100. The metal woven layer 100 includes a central body portion 120 and a plurality of radiation portions 130, wherein the radiation portions 130 are connected to the central body portion 120 and are distributed in a circumferential array around the central body portion 120, and the radiation portions 130 are used to increase the contact area between the metal woven layer 100 and the patient's skin.

[0048] Reference Figure 3 The adhesive layer 200 is bonded to the metal woven layer 100 and filled in the grid surrounded by the metal ring 110. The surface of the adhesive layer 200 and the surface of the metal ring 110 are both in direct contact with the patient's skin, and the adhesive layer 200 is sticky and adheres to the patient's skin. Therefore, while the adhesive layer 200 adheres, the metal ring 110 can conduct the patient's bioelectrical signals.

[0049] The conductive device 300 is connected to the metal woven layer 100 and is used to transmit electrical signals to an external detection instrument, thereby completing the monitoring of the patient's heartbeat condition.

[0050] Optionally, the radiation portion 130 is fan-shaped and takes the center of the central body portion 120 as the center of the circle, so that the entire metal fabric layer 100 forms a circular structure, and the outer edge of the metal fabric layer 100 has no edges and corners, thereby preventing the outer edge of the metal fabric layer 100 from interfering with or cutting the patient's skin when the patient moves. It is easy to understand that the radiation portion 130 can also adopt other shape structures, which will not be repeated here.

[0051] Furthermore, the metal woven layer 100 also includes a connecting strip 140, the two ends of which are respectively connected to the central body portion 120 and the radiating portion 130, which serves to connect the central body portion 120 and the radiating portion 130, and also enables the radiating portion 130 to extend farther outward, thereby further increasing the contact area between the electrocardiogram detection electrode and the patient's skin.

[0052] Optionally, the body axis of the connecting strip 140 is a curve, and when the metal fabric layer 100 is stretched, the curved connecting strip 140 can be straightened, thereby increasing the stretchability of the connecting strip 140 and better adapting to the patient's limb movements. Further, the connecting strip 140, the central body portion 120, and the radiation portion 130 are attached to the patient's skin, so that even when the connecting strip 140 is stretched, it can maintain continuous contact with the patient's skin, thereby completing the conduction of bioelectricity.

[0053] Optionally, the metal fabric layer 100 is made of a silver metal ring 110. Silver has excellent electrical conductivity, so it can better conduct electrical signals. It is easy to understand that conductive metal materials such as copper and gold can also be used, which will not be described in detail here.

[0054] Optionally, the adhesive layer 200 is made of adhesive silicone, which has adhesiveness and elasticity, so that it can adapt to the patient's limb movements and adhere stably.

[0055] Further, refer to Figure 4 The present ECG detection electrode further comprises a lining cloth 400, which is a breathable mesh spandex fabric, covering the metal woven layer 100. When fixing the present ECG detection electrode, medical staff can use the lining cloth 400 as a force component to avoid direct contact between the hand and the adhesive layer 200; at the same time, the lining cloth 400 is breathable to improve the comfort after adhesion.

[0056] A preparation method in an embodiment of the second aspect of the present invention is used to prepare the above-mentioned electrocardiogram detection electrode, comprising the following steps:

[0057] S100. Cutting the metal fabric using laser cutting to obtain a metal fabric layer 100;

[0058] S200.Reference Figure 5 , preparing a polyvinyl alcohol solution, and evenly coating the polyvinyl alcohol solution on the surface of the metal fabric layer 100, and then drying it in a drying oven to obtain a water-soluble film 500 adhered to the surface of the metal fabric layer 100;

[0059] S300. Turn over the metal fabric layer 100, refer to Figure 6 , coating the surface of the metal fabric layer 100 with adhesive silicone, allowing the adhesive silicone to penetrate into the mesh of the metal ring 110, and then placing it in a vacuum box for degassing;

[0060] S400. The metal fabric layer 100 is placed in a drying oven to dry, so that the adhesive silica gel is cured to obtain an adhesive layer 200;

[0061] S500.Reference Figure 7 , placing the metal woven layer 100 into water, so that the water-soluble film 500 is completely dissolved;

[0062] S600. Connect the conductive device 300 to the metal woven layer 100 to complete the preparation of the electrocardiogram detection electrode.

[0063] Furthermore, for the ECG detection electrode provided with the lining cloth 400, when drying the sticky silicone, it is first dried at 30°C for 15 minutes, and then the lining cloth 400 is covered on the surface of the metal fabric layer 100, and finally dried at 60°C until the sticky silicone is completely cured, thereby fixing the lining cloth 400 during the curing process of the sticky silicone.

[0064] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present invention. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

Claims

1. An electrocardiogram detection electrode, characterized in that: include: A metal woven layer, comprising a plurality of metal rings interlocked with each other, the metal woven layer comprising a central body portion and a plurality of radiating portions, the radiating portions being connected to the central body portion and distributed in a circumferential array around the central body portion; An adhesive layer, which is bonded to the metal woven layer, the adhesive layer is filled in the grid surrounded by the metal ring, the surface of the adhesive layer and the surface of the metal ring are both in direct contact with the patient's skin, and the adhesive layer is sticky and adheres to the patient's skin; A conductive device is connected to the metal woven layer and is used to transmit electrical signals to an external detection instrument.

2. The electrocardiogram detection electrode according to claim 1, characterized in that: The radiation portion is fan-shaped and takes the center of the central body portion as the center of the circle.

3. The electrocardiogram detection electrode according to claim 1, characterized in that: The metal woven layer further includes a connecting strip, two ends of which are respectively connected to the central body portion and the radiation portion.

4. The electrocardiogram detection electrode according to claim 3, characterized in that: The shape axis of the connecting strip is a curve, which is used to increase the tensile performance of the connecting strip.

5. The electrocardiogram detection electrode according to claim 4, characterized in that: The connecting strip, the central body portion and the radiation portion are in contact with the patient's skin.

6. The electrocardiogram detection electrode according to claim 1, characterized in that: The metal woven layer is specifically made of silver metal rings.

7. The electrocardiogram detection electrode according to claim 1, characterized in that: The adhesive layer is specifically made of adhesive silicone.

8. The electrocardiogram detection electrode according to any one of claims 1 to 7, characterized in that: The electrocardiogram detection electrode further comprises a lining cloth, and the lining cloth covers the metal woven layer.

9. A method for preparing the electrocardiogram detection electrode according to any one of claims 1 to 8, characterized in that: include: Cutting the metal fabric using a laser cutting method to obtain the metal woven layer; Preparing a polyvinyl alcohol solution, and evenly coating the polyvinyl alcohol solution on the surface of the metal fabric layer, and then placing it in a drying oven for drying to obtain a water-soluble film adhered to the surface of the metal fabric layer; Turning the metal fabric layer over, applying sticky silica gel on the surface of the metal fabric layer, allowing the sticky silica gel to penetrate into the mesh of the metal ring, and then placing the metal fabric layer in a vacuum box for degassing; Putting the metal fabric layer into a drying oven to dry, so that the adhesive silica gel solidifies, and obtaining the adhesive layer; placing the metal fabric layer into water so that the water-soluble film is completely dissolved; The conductive device is connected to the metal woven layer to complete the preparation of the electrocardiogram detection electrode.

10. The preparation method according to claim 9, characterized in that: The electrocardiogram detection electrode also includes a lining cloth, which covers the metal fabric layer. When drying the sticky silicone, it is first dried at 30°C for 15 minutes, then the lining cloth is covered on the surface of the metal fabric layer, and finally dried at 60°C until the sticky silicone is completely cured.

Images