Microneedle electrode patch

Abstract

This utility model discloses a microneedle electrode patch, including an insulating protective layer, an electrode layer disposed on the surface of the insulating protective layer, and a microneedle array layer disposed on the surface of the electrode layer; an auxiliary wing assembly, including side wings symmetrically connected to both sides of the insulating protective layer and adhesive strips symmetrically adhered to the surface of the side wings, wherein the area of ​​the side wings is half the surface area of ​​the insulating protective layer; the auxiliary wing assembly also includes a medical-grade polyurethane film; the side wings are symmetrically disposed on both sides of the insulating protective layer, and after the patch is applied to the skin, the side wings can be adhered to the skin by the adhesive strips, thereby enhancing the stability of the patch on the skin and making it less likely to shift or fall off. When the patch is removed for the next use, the side wings on both sides can be folded to cover the surface of the microneedle array layer, using the side wings to protect the microneedle array layer and prevent the microneedle array layer from bending or being damaged by external influences.

Description

Technical Field

[0001] This utility model belongs to the field of electrode patch technology, specifically relating to a microneedle electrode patch. Background Technology

[0002] Human cells generate weak bioelectricity during their activities, such as the electrocardiogram (ECG) signal from a beating heart and the electroencephalogram (EEG) signal from neuronal activity in the brain. Traditional electrode patches suffer from signal attenuation and noise interference due to the high resistance of the stratum corneum when collecting these signals. Microneedle electrode patches, by penetrating the stratum corneum with microneedles, bring the electrodes closer to the cells, significantly reducing signal transmission resistance. This allows for more efficient and precise acquisition of bioelectrical signals, resulting in higher signal quality and greater stability. This is crucial for accurate diagnosis in medical monitoring and for improving the reliability of data in scientific research. Microneedle electrode patches are innovative medical devices or research tools that combine tiny needle-like structures with electrode functions. They are typically sheet-like, usually a few square centimeters in size, allowing for easy application to specific areas of the skin. The patch mainly consists of a bottom microneedle array layer, a middle electrode layer, and an upper insulating protective layer. The bottom layer of microneedles is arranged in an array; these microneedles are extremely small, typically 200-500 μm in length and 50-100 μm in diameter at the base. Their function is to penetrate the stratum corneum of the skin, which is the first barrier preventing external substances from entering the skin and also the main barrier layer for the transmission of bioelectrical signals. The middle electrode layer is responsible for collecting bioelectrical signals, while the upper insulating protective layer is used to isolate external interference and ensure safety during use.

[0003] Existing electrode patches have certain shortcomings during use. First, the connection strength between the patch and the skin is insufficient. They are often fixed by inserting microneedles into the stratum corneum, which makes the patch prone to displacement. Second, for reusable patches, the protection of the microneedle array layer is insufficient. The microneedles are easily bent or damaged by external influences, affecting the next use. Therefore, a new microneedle electrode patch needs to be designed to solve this problem. Utility Model Content

[0004] The purpose of this invention is to provide a microneedle electrode patch to solve the problems mentioned in the background art, such as insufficient connection between the patch and the skin and inadequate protection of the microneedle array layer during use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a microneedle electrode patch, comprising...

[0006] An insulating protective layer, an electrode layer disposed on the surface of the insulating protective layer, and a microneedle array layer disposed on the surface of the electrode layer constitute the main structure of the patch.

[0007] The auxiliary wing assembly includes side wings symmetrically connected to both sides of the insulating protective layer and adhesive strips symmetrically bonded to the surface of the side wings. The area of ​​the side wings is half the surface area of ​​the insulating protective layer. The auxiliary wing assembly can adhere to the skin when the patch is in use, thereby improving the stability of the patch, and can also be folded when the patch is not in use to cover and protect the microneedle array layer.

[0008] Preferably, the auxiliary wing assembly further includes a medical-grade polyurethane film disposed on the surface of the side wing and located between two adhesive strips. The area of ​​the medical-grade polyurethane film is half the area of ​​the microneedle array layer. The adhesive strips can adhere the side wing to the skin or to the insulating protective layer.

[0009] Preferably, the auxiliary wing assembly further includes a connecting rubber sheet, which is connected between the insulating protective layer and the side wing.

[0010] Preferably, a wire is connected to one side of the insulating protective layer, and a connector is connected to the end of the wire, so that the signal can be transmitted to an external signal acquisition device through the wire and the connector.

[0011] Preferably, the surface of the conductor is provided with an auxiliary reinforcement component, which includes a fixing piece fixed to the surface of the conductor and adhesive tape attached to the surface of the fixing piece. The fixing piece and the adhesive tape can be used to attach part of the conduit to the skin.

[0012] Preferably, the surface of the plug tube is provided with a protective assembly, which includes a protective sleeve that slides on the surface of the plug tube, an inner sleeve that is fixed inside one end of the protective sleeve and sleeved on the outer surface of the plug tube, and a rubber ring that is fixed to the inner wall of the inner sleeve. The protective assembly can improve the connection stability between the plug tube and the plug on the external component.

[0013] Preferably, the protective assembly further includes an anti-detachment ring A and an anti-detachment ring B fixed to the surface of the insert cylinder, and the two are distributed on both sides of the inner cylinder.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] Side wings are symmetrically arranged on both sides of the insulating protective layer. After the patch is applied to the skin, the side wings can be adhered to the skin with adhesive strips, thereby enhancing the stability of the patch on the skin and making it less likely to shift or fall off. When the patch is removed for the next use, the side wings on both sides can be folded to cover the surface of the microneedle array layer. The side wings protect the microneedle array layer and prevent it from bending or being damaged by external influences. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0017] Figure 2 This is a three-dimensional schematic diagram of the back of the present invention;

[0018] Figure 3 This utility model Figure 1 Enlarged view of area A in the middle;

[0019] Figure 4 This is a three-dimensional schematic diagram of the auxiliary reinforcement component of this utility model;

[0020] Figure 5 This is a front sectional view of the protective assembly of this utility model;

[0021] In the diagram: 100, Insulating protective layer; 200, Microneedle array layer; 300, Auxiliary wing assembly; 301, Side wing piece; 302, Adhesive strip; 303, Connecting rubber sheet; 304, Medical-grade polyurethane film; 400, Wire; 500, Connector tube; 600, Auxiliary reinforcement assembly; 601, Fixing piece; 602, Adhesive tape; 700, Protective assembly; 701, Protective tube; 702, Inner tube; 703, Rubber ring; 704, Anti-detachment ring A; 705, Anti-detachment ring B; 800, Electrode layer. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example

[0024] Please see Figures 1 to 5 This embodiment provides a technical solution: a microneedle electrode patch, comprising...

[0025] The insulating protective layer 100, the electrode layer 800 disposed on the surface of the insulating protective layer 100, and the microneedle array layer 200 disposed on the surface of the electrode layer 800 are used to penetrate the stratum corneum of the skin. The electrode layer 800 in the middle is responsible for collecting bioelectric signals. The insulating protective layer 100 is used to isolate external interference and ensure safety during use.

[0026] The auxiliary wing assembly 300 includes side wing pieces 301 symmetrically connected to both sides of the insulating protective layer 100 and adhesive strips 302 symmetrically bonded to the surface of the side wing pieces 301. The area of ​​the side wing pieces 301 is half the surface area of ​​the insulating protective layer 100. The side wing pieces 301 are made of medical-grade silicone and have good flexibility. The adhesive strips 302 can bond the side wing pieces 301 to the skin. When the side wing pieces 301 are folded, the adhesive strips 302 can also bond the side wing pieces 301 to the insulating protective layer 100. When the side wing pieces 301 on both sides are folded, they can cover the surface of the insulating protective layer 100.

[0027] In this embodiment, preferably, the auxiliary wing assembly 300 further includes a medical-grade polyurethane film 304. The medical-grade polyurethane film 304 is disposed on the surface of the side wing 301 and located between the two adhesive strips 302. The area of ​​the medical-grade polyurethane film 304 is half the area of ​​the microneedle array layer 200. By covering the surface of the microneedle array layer 200 with the medical-grade polyurethane film 304, the microneedle array layer 200 can be protected. After the medical-grade polyurethane films 304 on both sides are folded, they can cover the surface of the microneedle array layer 200, achieving a good protective effect.

[0028] In this embodiment, preferably, the auxiliary wing assembly 300 further includes a connecting rubber sheet 303, which is connected between the insulating protective layer 100 and the side wing 301 to complete the connection between the insulating protective layer 100 and the side wing 301.

[0029] In this embodiment, preferably, a wire 400 is connected to one side of the insulating protective layer 100, and a connector 500 is connected to the end of the wire 400. The wire 400 can transmit signals, and the connector 500 can be plugged into a plug on an external information acquisition device to acquire signals.

[0030] In this embodiment, preferably, the surface of the wire 400 is provided with an auxiliary reinforcement component 600. The auxiliary reinforcement component 600 includes a fixing piece 601 fixed to the surface of the wire 400 and an adhesive tape 602 attached to the surface of the fixing piece 601. After the patch is attached to the skin, the adhesive tape 602 can be attached to the skin, thereby fixing part of the wire 400 to the skin. On the one hand, it plays the role of wire management, and on the other hand, it can further improve the bonding stability of the patch.

[0031] In this embodiment, preferably, a protective component 700 is provided on the surface of the plug-in tube 500. The protective component 700 includes a protective tube 701 that slides on the surface of the plug-in tube 500, an inner tube 702 that is fixed inside one end of the protective tube 701 and sleeved on the outer surface of the plug-in tube 500, and a rubber ring 703 that is fixed to the inner wall of the inner tube 702. After the plug-in tube 500 is plugged into an external plug, the protective tube 701 can be moved to cover the outside of the connection point and play a protective role. The function of the rubber ring 703 is to improve the stability of the protective tube 701 on the surface of the plug-in tube 500. Except for manual manipulation, the protective tube 701 is not easily moved.

[0032] In this embodiment, preferably, the protective assembly 700 further includes an anti-detachment ring A704 and an anti-detachment ring B705 fixed on the surface of the plug-in cylinder 500, and the two are distributed on both sides of the inner cylinder 702. The anti-detachment ring A704 and the anti-detachment ring B705 can limit the protective cylinder 701 and prevent the protective cylinder 701 from falling off.

[0033] Working principle: When using the patch, the microneedle array layer 200 of the patch faces the skin, aligns with the area where signal acquisition is needed, and the patch is gently pressed to allow the microneedle array layer 200 to penetrate the stratum corneum and establish good contact with the skin. Then, the adhesive strip 302 is used to adhere the side wings 301 to the skin, reinforcing the connection between the microneedle array layer 200 and the skin and ensuring the stability of the patch. Next, the adhesive tape 602 is adhered to the skin. Through the adhesive tape 602 and the fixing piece 601, part of the wire 400 can be fixed to the skin, serving both as wire management and further strengthening the stable connection between the patch and the skin. Finally, the connector 50 is inserted. When connected to an external signal acquisition device, the protective sleeve 701 can be moved to slide on the surface of the plug tube 500, covering the connection between the plug tube 500 and the external plug, thus providing protection and ensuring connection stability for signal acquisition. When not in use, the patch needs to be peeled off, and then the side flaps 301 on both sides should be folded to allow the adhesive strip 302 to adhere to both sides of the insulating protective layer 100. At this time, the medical-grade polyurethane film 304 covers the top of the microneedle array layer 200, providing good protection for the microneedle array layer 200 and preventing it from bending or being damaged by the external environment, which is beneficial for future use.

[0034] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A microneedle electrode patch, characterized in that: include Insulating protective layer (100), electrode layer (800) disposed on the surface of insulating protective layer (100), and microneedle array layer (200) disposed on the surface of electrode layer (800); The auxiliary wing assembly (300) includes side wing pieces (301) symmetrically connected to both sides of the insulating protective layer (100) and adhesive strips (302) symmetrically bonded to the surface of the side wing pieces (301), wherein the area of ​​the side wing pieces (301) is half the surface area of ​​the insulating protective layer (100).

2. The microneedle electrode patch of claim 1, wherein: The auxiliary wing assembly (300) also includes a medical-grade polyurethane film (304), which is disposed on the surface of the side wing (301) and located between two adhesive strips (302). The area of ​​the medical-grade polyurethane film (304) is half the area of ​​the microneedle array layer (200).

3. The microneedle electrode patch of claim 2, wherein: The auxiliary wing assembly (300) also includes a connecting rubber sheet (303) connected between the insulating protective layer (100) and the side wing (301).

4. The microneedle electrode patch of claim 3, wherein: One side of the insulating protective layer (100) is connected to a wire (400), and the end of the wire (400) is connected to a plug tube (500).

5. The microneedle electrode patch of claim 4, wherein: The surface of the conductor (400) is provided with an auxiliary reinforcement component (600), which includes a fixing piece (601) fixed to the surface of the conductor (400) and an adhesive tape (602) attached to the surface of the fixing piece (601).

6. The microneedle electrode patch of claim 5, wherein: The surface of the plug tube (500) is provided with a protective assembly (700), which includes a protective tube (701) that slides on the surface of the plug tube (500), an inner tube (702) that is fixed inside one end of the protective tube (701) and sleeved on the outer surface of the plug tube (500), and a rubber ring (703) that is fixed on the inner wall of the inner tube (702).

7. The microneedle electrode patch of claim 6, wherein: The protective assembly (700) also includes an anti-detachment ring A (704) and an anti-detachment ring B (705) fixed on the surface of the plug-in cylinder (500), and the two are distributed on both sides of the inner cylinder (702).

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