Embedded epidermal electrocardio acquisition electrode

Abstract

The utility model relates to the technical field of electrocardio electrodes of medical instruments, and particularly discloses an embedded epidermal electrocardio collecting electrode, which comprises an electrode mounting component, an electrode buckle consisting of an upper electrode buckle and a lower electrode buckle, and an adhesive layer. The electrode mounting assembly is provided with a snakelike electrode network, an assembly fitting part and an assembly hole, the assembly hole is formed along the center of the assembly fitting part, and the snakelike electrode network is arranged along the peripheral area of the assembly fitting part; the upper electrode buckle and the lower electrode buckle are both provided with a protruding part and a flat part, the protruding part of the lower electrode buckle penetrates through the assembly hole of the electrode installation assembly, and the flat part of the lower electrode buckle is attached to the side, close to the human body end, of the assembly attachment part; the upheaval part of the upper electrode buckle sleeves the upheaval part of the lower electrode buckle for interference fit, and the flat part of the upper electrode buckle is attached to the other side of the assembly attaching part; the whole snake-shaped electrode network deforms and deviates towards the human body end along the connecting position of the snake-shaped electrode network and the assembly attaching part, so that the side, close to the human body end, of the snake-shaped electrode network and the bottom end of the lower electrode buckle flat part are located on the same plane.

Description

Technical Field

[0001] The utility model relates to the field of electrocardiogram electrodes for medical devices and appliances, in particular to an embedded epidermal electrocardiogram collection electrode. Background Art

[0002] As a supporting device for ECG monitoring, the performance of ECG electrodes directly affects the quality of ECG monitoring signals and the practical experience of patients. According to the characteristics of ECG electrode materials, they can usually be divided into the following two types.

[0003] Wet electrodes, the wet electrodes widely used in medical research are standard Ag / AgCl electrodes coated with conductive hydrogel, which can provide a certain wetting effect to reduce the skin-electrode interface contact impedance. However, the introduction of hydrogel inevitably reduces the breathability of this electrode, which is prone to cause skin allergic reactions when worn for a long time. In addition, as the water in the conductive hydrogel evaporates, the skin-electrode interface contact impedance will gradually increase, affecting the quality of ECG signal monitoring.

[0004] Dry electrodes, considering the problems of conductive hydrogels in use, people gradually began to use materials with lower resistivity to directly prepare ECG electrodes. Specifically, they can be divided into contact dry electrodes and adhesive dry electrodes. For contact dry electrodes, they are mainly made of metal plates or conductive yarns, and measure ECG signals by contact with the skin. The preparation process of this electrode is simple, and it can be combined with clothing, which is convenient to use. However, relative sliding between this electrode and the skin is prone to occur, resulting in significant changes in the contact impedance of the skin-electrode interface, which in turn affects the quality of ECG signal monitoring. On the basis of the former, the adhesive dry electrode introduces a sticky backing to prevent the relative sliding between the ECG electrode and the skin surface, which improves the quality of ECG signal monitoring to a certain extent. However, the current adhesive dry electrode often directly adheres the sticky backing to the conductive electrode during the preparation process, resulting in poor electrode surface flatness, easy to produce gaps during use, and reduce the skin-electrode interface bonding performance. At the same time, it lacks a flexible design and is not easy to attach to the human body. In addition, this adhesive dry electrode lacks a universal electrode interface and cannot match the ECG monitor commonly used in the medical field, reducing the practical performance of the electrode. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide an embedded epidermal ECG acquisition electrode to address the deficiencies of the prior art. To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An embedded epidermal electrocardiogram acquisition electrode, comprising:

[0007] An electrode mounting assembly, wherein the electrode mounting assembly is provided with a serpentine electrode network, an assembly fitting portion and an assembly hole, wherein the assembly hole is arranged along the center of the assembly fitting portion, and the serpentine electrode network is arranged along the peripheral area of ​​the assembly fitting portion;

[0008] An electrode buckle composed of an upper electrode buckle and a lower electrode buckle, wherein the upper electrode buckle and the lower electrode buckle are both provided with a raised portion and a flat portion, the raised portion of the lower electrode buckle passes through the assembly hole of the electrode mounting assembly, and the flat portion is fitted with the side of the assembly fitting portion close to the human body end; the raised portion of the upper electrode buckle is sleeved on the raised portion of the lower electrode buckle with an interference fit, and the flat portion is fitted with the other side of the assembly fitting portion;

[0009] The serpentine electrode network is deformed and offset as a whole toward the human body end along the connection between the serpentine electrode network and the assembly fitting part, so that the side of the serpentine electrode network close to the human body end is located in the same plane as the bottom end of the flattened part of the lower electrode buckle;

[0010] It also includes an adhesive layer, which is solidified on the serpentine electrode network. The inner side of the adhesive layer is flush with the side of the serpentine electrode network close to the human body, and the outer side covers the other side of the serpentine electrode network.

[0011] As a further improvement of the utility model, a film dressing is bonded to the side of the adhesive layer away from the human body, and the non-adhesive side of the film dressing is arranged outward.

[0012] As a further improvement of the utility model, the bottom end surface of the flattened portion of the lower electrode buckle is covered by a bottom adhesive layer.

[0013] As a further improvement of the utility model, conductive glue is provided at the interference fit between the upper electrode buckle and the lower electrode buckle.

[0014] As a further improvement of the present invention, the serpentine electrode network is a single serpentine structure or a double serpentine structure.

[0015] As a further improvement of the present invention, the outer contour of the serpentine electrode network is circular, square or elliptical.

[0016] As a further improvement of the utility model, both sides of the adhesive layer are smoothly arranged.

[0017] As a further improvement of the utility model, the thickness of the serpentine electrode network is 0.1-0.5 mm, and the width of the serpentine lines in the serpentine electrode network is half of the thickness.

[0018] As a further improvement of the present invention, the thickness of the bottom adhesive layer is 0.05-0.2 mm, and the thickness of the adhesive layer is 1-2 mm.

[0019] The beneficial effects of the utility model are:

[0020] 1. Provide an embedded epidermal ECG acquisition electrode, which is embedded in a serpentine electrode network by setting adhesive and smoothly fitting it to the human body surface, so that the surface of the serpentine electrode network is smoother, thereby improving the bonding strength of the skin-electrode interface; at the same time, the serpentine electrode network is deformed and offset toward the human body end as a whole along the connection between it and the assembly fitting part, so that the side of the serpentine electrode network close to the human body end is in the same plane as the bottom end of the flat part of the lower electrode buckle, which can eliminate the thickness difference and position difference between the flat part of the lower electrode buckle and the electrode part, so that the surface of the contact part between the electrode part and the flat part of the lower electrode buckle is smoother, further improving the bonding strength of the skin-electrode interface.

[0021] 2. By adding an assembleable structure to the electrode mounting assembly, it can be assembled with a universal electrode buckle structure to meet the matching requirements of electrocardiograph monitors in the medical field.

[0022] 3. By setting up a flexible structure of a serpentine electrode network, the tensile bending performance of the electrode can be improved, so that it can be better attached to the human body surface. At the same time, it can also provide a larger gap, improve the air permeability and water permeability of the electrode, and reduce the skin's rejection reaction.

[0023] 4. By bonding the film dressing to the side of the adhesive away from the human body and arranging the non-adhesive side of the film dressing outward, its adhesion to clothes can be effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Attached Figure 1 This is an exploded view of the embedded epidermal ECG collection electrode of the utility model.

[0026] Attached Figure 2 This is a schematic diagram of the electrode installation assembly of the utility model.

[0027] Attached Figure 3 This is a schematic diagram of the assembly structure of the embedded epidermal ECG acquisition electrode.

[0028] In the figure: upper electrode buckle 1, electrode mounting assembly 2, lower electrode buckle 3, film dressing 4, bottom adhesive layer 5, upper electrode buckle raised portion 11, assembly hole 21, assembly fitting portion 22, adhesive layer 23, serpentine electrode network 24, lower electrode buckle raised portion 31, and bottom end 32 of the lower electrode buckle flat portion. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] like Figure 1 , 2 As shown, an embedded epidermal ECG acquisition electrode comprises an electrode mounting assembly 2, an electrode buckle composed of an upper electrode buckle 1 and a lower electrode buckle 3, and an adhesive layer 23. The electrode mounting assembly 2 is provided with a serpentine electrode network 24, an assembly fitting portion 22 and an assembly hole 21, wherein the assembly hole 21 is arranged along the center of the assembly fitting portion 22, and the serpentine electrode network 24 is arranged along the peripheral area of ​​the assembly fitting portion 22. Both the upper electrode buckle 1 and the lower electrode buckle 3 are provided with a raised portion and a flat portion, wherein the raised portion 31 of the lower electrode buckle passes through the assembly hole 21 of the electrode mounting assembly 2, and the flat portion thereof is fitted with the side of the assembly fitting portion 22 close to the human body end; the raised portion 11 of the upper electrode buckle is sleeved on the raised portion 31 of the lower electrode buckle with an interference fit, and the flat portion thereof is fitted with the other side of the assembly fitting portion 22. The serpentine electrode network 24 is deformed and offset toward the human body end along the connection between the serpentine electrode network 24 and the assembly and fitting part 22, so that the side of the serpentine electrode network 24 close to the human body end is located in the same plane as the bottom end 32 of the lower electrode buckle flat part. In this way, the thickness difference and position difference between the lower electrode buckle flat part and the electrode part can be eliminated, making the surface of the contact part between the electrode part and the lower electrode buckle flat part smoother, further improving the skin-electrode interface bonding strength.

[0031] Furthermore, the adhesive layer 23 is cured on the serpentine electrode network 24, the inner side of the adhesive layer is flush with the side of the serpentine electrode network close to the human body, and the outer side covers the other side of the serpentine electrode network 24. Both sides of the adhesive layer 23 are smoothly arranged. The film dressing 4 is adhered to the side of the adhesive layer 23 away from the human body, and the non-sticky side of the film dressing 4 is arranged outward, which can effectively reduce its adhesion to clothes.

[0032] Furthermore, the surface of the bottom end 32 of the flattened portion of the lower electrode buckle is covered by the bottom adhesive layer 5 .

[0033] Preferably, when the upper electrode buckle 1 and the lower electrode buckle 3 are interference-fitted, in order to further reduce the resistance, a conductive glue can be added to the interference fit, and the conductive glue can be conductive silver glue or epoxy conductive glue.

[0034] Furthermore, the serpentine electrode network 24 is a single serpentine structure or a double serpentine structure. The flexible structure of the serpentine electrode network can improve the tensile bending performance of the electrode so as to better adhere to the human body surface. At the same time, it can also provide a larger gap, improve the air permeability and water permeability of the electrode, and reduce the rejection reaction of the skin.

[0035] Preferably, the outer contour of the serpentine electrode network 24 is circular, square or elliptical.

[0036] Preferably, the electrode material may be selected from materials with good biocompatibility and stable electrode potential, such as graphene, carbon black, metal aluminum, or other non-metallic polymers such as polyimide whose surface is covered with a conductive material such as Ag / AgCl.

[0037] Preferably, the adhesive 23 and the bottom adhesive 4 can be made of a polymer material with good air permeability and water permeability and strong viscosity, such as silicone gel.

[0038] Furthermore, the thickness of the serpentine electrode network 23 is 0.1-0.5 mm, and the width of the serpentine line in the serpentine electrode network 23 is half of its thickness. The thickness of the bottom adhesive layer 5 is 0.05-0.2 mm, and the thickness of the adhesive layer 23 is 1-2 mm. The thickness of the bottom adhesive layer 5 is set to be thin enough, and the thickness difference caused by it can be directly ignored.

[0039] It can be understood that the above specific description of the utility model is only used to illustrate the utility model and is not limited to the technical solution described in the embodiments of the utility model. Ordinary technicians in the field should understand that the utility model can still be modified or replaced by equivalents to achieve the same technical effect; as long as the use requirements are met, they are within the protection scope of the utility model.

Claims

1. An embedded epidermal electrocardiogram acquisition electrode, characterized in that: include: An electrode mounting assembly, wherein the electrode mounting assembly is provided with a serpentine electrode network, an assembly fitting portion and an assembly hole, wherein the assembly hole is arranged along the center of the assembly fitting portion, and the serpentine electrode network is arranged along the peripheral area of ​​the assembly fitting portion; An electrode buckle composed of an upper electrode buckle and a lower electrode buckle, wherein the upper electrode buckle and the lower electrode buckle are both provided with a raised portion and a flat portion, the raised portion of the lower electrode buckle passes through the assembly hole of the electrode mounting assembly, and the flat portion is fitted with the side of the assembly fitting portion close to the human body end; the raised portion of the upper electrode buckle is sleeved on the raised portion of the lower electrode buckle with an interference fit, and the flat portion is fitted with the other side of the assembly fitting portion; The serpentine electrode network is deformed and offset as a whole toward the human body end along the connection between the serpentine electrode network and the assembly fitting part, so that the side of the serpentine electrode network close to the human body end is located in the same plane as the bottom end of the flattened part of the lower electrode buckle; It also includes an adhesive layer, which is solidified on the serpentine electrode network. The inner side of the adhesive layer is flush with the side of the serpentine electrode network close to the human body, and the outer side covers the other side of the serpentine electrode network.

2. The embedded epidermal ECG acquisition electrode according to claim 1, characterized in that: The side of the adhesive layer away from the human body is bonded with a film dressing, and the non-adhesive side of the film dressing is arranged outwards.

3. The embedded epidermal ECG acquisition electrode according to claim 1, characterized in that: The surface of the bottom end 32 of the flattened portion of the lower electrode buckle is covered by a bottom adhesive layer.

4. The embedded epidermal ECG acquisition electrode according to claim 1, characterized in that: Conductive glue is provided at the interference fit between the upper electrode buckle and the lower electrode buckle.

5. The embedded epidermal ECG acquisition electrode according to claim 1, characterized in that: The serpentine electrode network is a single serpentine structure or a double serpentine structure.

6. The embedded epidermal ECG acquisition electrode according to claim 5, characterized in that: The outer contour of the serpentine electrode network is circular, square or elliptical.

7. The embedded epidermal ECG acquisition electrode according to claim 2, characterized in that: Both sides of the adhesive layer are smoothly arranged.

8. The embedded epidermal ECG acquisition electrode according to claim 1, characterized in that: The thickness of the serpentine electrode network is 0.1-0.5 mm, and the width of the serpentine lines in the serpentine electrode network is half of the thickness.

9. The embedded epidermal ECG acquisition electrode according to claim 3, characterized in that: The thickness of the bottom adhesive layer is 0.05-0.2 mm, and the thickness of the adhesive layer is 1-2 mm.

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