Improved defibrillation electrode pad

Abstract

The utility model discloses an improved defibrillation electrode piece belongs to medical instrument technical field, including backing layer, conducting part, electrode wire and insulating layer, two installation grooves are symmetrically seted up on the backing layer, the elastic bandage is installed in two installation grooves of the backing layer, the corresponding position of two the elastic bandage all is provided with the mutual adhesion magic tape, the conducting part adopts the telescopic metal grid layer and the graphene coating composite structure, realizes the adaptive body shape change through the elastic connecting piece, the temperature sensor module is integrated in the backing layer, the electrode wire is composed of the conducting metal core and the heat -conducting silica gel filling layer, the heat -conducting silica gel filling layer is wrapped in the outside of conducting metal core. The improved defibrillation electrode piece, through the structural innovation and material optimization, significantly improves the defibrillation efficiency and safety, is applicable to the first -aid scene of different body shape patient.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to an improved defibrillation electrode pad. Background Technology

[0002] Defibrillation electrodes, as key components connecting the defibrillator to the human body, play an indispensable role in cardiac emergency care. During defibrillation, the electrodes must withstand voltages exceeding two thousand volts and currents of tens of amperes applied to the body, placing extremely high demands on their safety and reliability. However, existing defibrillation electrodes have numerous problems.

[0003] Some traditional electrode pads perform poorly in terms of conductivity. The conductive materials and structural design they employ result in high contact resistance, leading to uneven current distribution, which in turn affects defibrillation effectiveness and reduces the success rate. Furthermore, traditional electrode pads lack adequate heat dissipation design, making it difficult to quickly dissipate the heat generated during defibrillation. Excessive localized temperature can easily cause skin burns, increasing patient suffering and potential risks. Utility Model Content

[0004] The purpose of this invention is to provide an improved defibrillation electrode pad to solve the problems of poor conductivity and insufficient heat dissipation of some traditional electrode pads mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an improved defibrillator electrode pad, comprising a backing layer, a conductive part, and electrode wires. The conductive part includes a stretchable metal mesh layer and a graphene conductive coating. The metal mesh layer is connected to the backing layer via an elastic connector. A temperature sensor module is embedded in the backing layer. The electrode wires consist of a conductive metal core and a thermally conductive silicone filling layer, with the thermally conductive silicone filling layer wrapping around the conductive metal core.

[0006] In a further embodiment, the thermally conductive silicone filling layer is provided with heat dissipation fins in the contact area with the conductive part, and a wave-shaped stress buffer structure is provided at the connection between the electrode wire and the conductive part. An insulating layer fixedly connected to the backing layer is provided above the heat dissipation fins and the stress buffer structure.

[0007] In a further embodiment, two mounting slots are symmetrically formed on the backing layer, and elastic straps are installed in both mounting slots of the backing layer. Corresponding positions of the two elastic straps are provided with Velcro fasteners that are mutually adhesive.

[0008] In a further embodiment, a self-adhesive layer is provided on the surface of the conductive part, and the self-adhesive layer is made of acrylic pressure-sensitive adhesive.

[0009] In a further embodiment, the conductive part has a rounded transition structure at its edge, the metal mesh layer has a mesh spacing of 0.5-2 mm, and the graphene conductive coating has a thickness of 1-5 μm.

[0010] In a further embodiment, the thermally conductive silicone filler layer is wrapped with an aramid fiber anti-tear braided layer.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] This improved defibrillator electrode pad, through its stretchable conductive part, can adapt to the patient's body shape. The metal mesh layer can expand or contract according to the changes in the patient's chest wall curve. At the same time, the graphene coating has good conductivity, which can reduce contact resistance, ensure uniform current distribution, and effectively improve the defibrillation success rate.

[0013] The temperature sensor module can monitor the temperature of conductive parts in real time and provide timely warnings of overheating risks. The heat sink fins are made of highly thermally conductive materials, increasing the heat dissipation area, significantly improving heat dissipation efficiency, and preventing burns to patients caused by excessively high local temperatures.

[0014] The stress buffer structure is designed in a wave shape to effectively absorb the tensile and bending stresses of the electrode wires. The aramid fiber anti-tear braided layer has high strength and wear resistance. The two work together to improve the durability of the electrode wires and extend their service life.

[0015] The elastic straps and Velcro design on the backing layer, combined with the self-adhesive layer, create multiple fixation methods. Even when the patient moves or sweats, the electrode pads remain firmly attached to the patient's skin, improving the stability and continuity of defibrillation procedures. This improved defibrillation electrode pad, through structural innovation and material optimization, significantly enhances defibrillation efficiency and safety, making it suitable for emergency scenarios involving patients of different body types. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is an exploded view of the conductive part of this utility model;

[0019] Figure 3 This is a schematic diagram of the backing layer of this utility model;

[0020] Figure 4 This is a schematic diagram of the backing layer structure in the state without the insulating layer of this utility model;

[0021] Figure 5 This is a schematic diagram of the electrode wire of this utility model in a cut-out state;

[0022] Figure 6 For the present utility model Figure 4 Enlarged view of point A in the middle.

[0023] In the diagram: 1. Backing layer; 2. Conductive part; 3. Electrode wire; 4. Elastic strap; 5. Metal mesh layer; 6. Graphene conductive coating; 7. Self-adhesive layer; 8. Temperature sensor module; 9. Insulating layer; 10. Conductive metal core; 11. Thermally conductive silicone filling layer; 12. Anti-tear braided layer; 13. Heat dissipation fins; 14. Stress buffer structure. Detailed Implementation

[0024] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0025] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0026] This utility model provides, for example Figure 1-6 The modified defibrillator electrode pad shown includes a backing layer 1, a conductive part 2, and an electrode wire 3. The backing layer 1 is made of medical-grade silicone material, which has good flexibility and biocompatibility. Two mounting slots are symmetrically opened on the backing layer 1. Elastic straps 4 are installed in both mounting slots of the backing layer 1. Velcro is provided at the corresponding positions of the two elastic straps 4 to stick to each other. The adhesive strength is ≥5N / cm to ensure that the elastic straps 4 can firmly fix the electrode pad.

[0027] The conductive part 2 includes a stretchable metal mesh layer 5 and a graphene conductive coating 6. The metal mesh layer 5 is connected to the backing layer 1 via an elastic connector (not shown in detail in the figure, but could be a silicone spring or shape memory alloy wire). The surface of the graphene conductive coating 6 has nanoscale micropores (not shown in detail in the figure). These micropores can improve skin adhesion and conductivity. The conductive part 2 has a rounded transition structure at the edge with a radius of curvature of 1-3 mm, which can reduce skin indentation. The mesh spacing of the metal mesh layer 5 is 0.5-2 mm, and the thickness of the graphene conductive coating 6 is 1-5 μm. These parameters have been optimized to ensure conductivity and the overall performance of the electrode sheet. The surface of the conductive part 2 is provided with a self-adhesive layer 7. The self-adhesive layer 7 uses acrylic pressure-sensitive adhesive with a peel strength of 1-3 N / cm. This pressure-sensitive adhesive combines adhesion and comfort, allowing the electrode sheet to adhere tightly to the skin while being easy to remove.

[0028] A temperature sensor module 8 is embedded in the backing layer 1. The temperature sensor module 8 includes a miniature thermocouple and a signal processing chip. The miniature thermocouple can accurately sense the temperature change of the conductive part 2 and transmit the signal to the signal processing chip for processing and output. The electrode wire 3 is composed of a conductive metal core 10 and a thermally conductive silicone filling layer 11. The thermally conductive silicone filling layer 11 is wrapped around the outside of the conductive metal core 10, which plays the role of filling, heat conduction and protection. The outside of the thermally conductive silicone filling layer 11 is wrapped with an aramid fiber anti-tear braided layer 12. The aramid fiber has the characteristics of high strength and high modulus, which effectively enhances the tensile strength of the electrode wire 3.

[0029] The thermally conductive silicone filling layer 11 has heat dissipation fins 13 in the contact area with the conductive part 2. The heat dissipation fins 13 are made of a high thermal conductivity metal material (such as copper-nickel alloy) and are fin-shaped to increase the heat dissipation area. A wave-shaped stress buffer structure 14 is provided at the connection between the electrode wire 3 and the conductive part 2. This structure can effectively relieve the external force on the wire. An insulating layer 9 is provided above the heat dissipation fins 13 and the stress buffer structure 14 and is fixedly connected to the backing layer 1. The insulating layer 9 plays the role of electrical isolation and protection of the internal structure.

[0030] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The control method of this utility model is through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0031] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] Working principle:

[0033] The improved defibrillation electrode pad is first aligned with the conductive part 2 of the electrode pad to the location where defibrillation is required. The release film of the self-adhesive layer 7 is removed so that the self-adhesive layer 7 initially adheres to the patient's skin. Then, the elastic band 4 on the backing layer 1 is wrapped around the patient's body and attached to each other with Velcro to further fix the electrode pad and ensure that the electrode pad is firmly attached to the patient's skin.

[0034] During defibrillation, the temperature sensor module 8 monitors the temperature of the conductive part 2 in real time. When the conductive part 2 generates heat due to the current passing through it, the heat is transferred to the thermally conductive silicone filling layer 11. The heat dissipation fins 13 increase the heat dissipation area, accelerate heat dissipation, and control the local temperature within a safe range to avoid burns to the patient's skin. At the same time, the stretchable metal mesh layer 5 adapts to the patient's body shape, and the graphene conductive coating 6 ensures uniform current distribution and improves the defibrillation effect.

[0035] When the electrode wire 3 is subjected to external force pulling or bending during current transmission, the wave-shaped stress buffer structure 14 and the aramid fiber anti-tension braided layer 12 work together to absorb stress, protect the internal structure of the wire, and extend the service life of the electrode wire 3. After defibrillation operation is completed, the elastic strap 4 can be untied and the electrode plate can be easily removed.

[0036] Although embodiments of the present invention have been shown and described, 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. An improved defibrillator electrode pad, comprising a backing layer (1), a conductive portion (2), and electrode wires (3), characterized in that: The conductive part (2) includes a stretchable metal mesh layer (5) and a graphene conductive coating (6). The metal mesh layer (5) is connected to the backing layer (1) through an elastic connector. The backing layer (1) has an embedded temperature sensor module (8). The electrode wire (3) is composed of a conductive metal core (10) and a thermally conductive silicone filling layer (11). The thermally conductive silicone filling layer (11) is wrapped around the conductive metal core (10).

2. The improved defibrillation electrode pad according to claim 1, characterized in that: The thermally conductive silicone filling layer (11) is provided with heat dissipation fins (13) in the contact area with the conductive part (2), and a wave-shaped stress buffer structure (14) is provided at the connection between the electrode wire (3) and the conductive part (2). An insulating layer (9) is provided above the heat dissipation fins (13) and the stress buffer structure (14) and is fixedly connected to the backing layer (1).

3. The improved defibrillation electrode pad according to claim 1, characterized in that: Two mounting slots are symmetrically provided on the backing layer (1). Elastic straps (4) are installed in both mounting slots of the backing layer (1). Velcro is provided at the corresponding positions of the two elastic straps (4).

4. The improved defibrillation electrode pad according to claim 1, characterized in that: The surface of the conductive part (2) is provided with a self-adhesive layer (7), which is made of acrylic pressure-sensitive adhesive.

5. The improved defibrillation electrode pad according to claim 4, characterized in that: The conductive part (2) has an arc transition structure at its edge, the metal mesh layer (5) has a mesh spacing of 0.5-2mm, and the graphene conductive coating (6) has a thickness of 1-5μm.

6. The improved defibrillation electrode pad according to claim 1, characterized in that: The thermally conductive silicone filling layer (11) is wrapped with an aramid fiber anti-tear braided layer (12).

Images