Defibrillation electrode pad structure

Abstract

This invention discloses a defibrillator electrode plate structure. The defibrillator electrode plate structure includes: a metal sheet; an elastic element connected to the outer peripheral edge of the lower surface of the metal sheet, and the elastic element having an opening area; a conductive gel layer connected to the lower surface of the metal sheet within the opening area; and a release film connected to the lower surface of the conductive gel layer; a backing substrate connected to the outer peripheral edge of the upper surface of the metal sheet, and the backing substrate having a window area for exposing the metal sheet. After removing the release film, when the lower surface of the defibrillator electrode plate is adhered to the skin, the conductive gel layer adheres tightly to the skin, and the exposed metal sheet on the upper surface directly contacts the metal electrode of the defibrillator to complete electrical defibrillation. This design effectively solves the problem of uneven and loose contact between traditional electrode plates and the skin, ensuring that the energy output by the defibrillator can be efficiently and stably delivered to the patient's heart, thus improving the defibrillation effect.

Description

Technical Field

[0001] This utility model relates to the field of defibrillation electrode plate technology, and in particular to a defibrillation electrode plate structure. Background Technology

[0002] In the field of emergency medical care, cardiac arrest is a life-threatening emergency, and timely and effective external defibrillation is one of the key measures for rescuing cardiac arrest patients. Currently, most repetitive defibrillators commonly used in the industry employ external defibrillation using the defibrillator's built-in metal electrode plates.

[0003] Traditional defibrillation methods mainly fall into two categories: one involves directly pressing metal electrode plates onto the skin during external defibrillation; the other involves applying conductive gel to the skin before pressing the electrode plates onto the skin. However, both of these traditional defibrillation methods have numerous drawbacks.

[0004] First, defibrillator electrode pads are typically flat metal structures. However, in actual use, because the surface of human skin is not perfectly flat, it's difficult to achieve a completely flat surface when the electrode pads contact the skin, resulting in insufficient contact. This loose contact prevents the defibrillator's energy from being effectively delivered to the patient's heart, leading to insufficient energy output and affecting defibrillation effectiveness, thus reducing the success rate of resuscitation. Furthermore, loose contact can also cause uneven current distribution on the skin surface, increasing the risk of injury to the patient.

[0005] Secondly, there are several problems with the application of conductive gel. The size of the application area is difficult to control precisely. If the area is too large, residual gel in areas not covered by the electrode plates may conduct current to the operator, causing electric shock. If the area is too small, the electrode plates cannot completely cover it, leading to unstable shock energy and affecting defibrillation effectiveness. Furthermore, cleaning residual conductive gel from the skin after defibrillation is troublesome, increasing the workload of medical staff and potentially causing irritation and damage to the patient's skin.

[0006] Therefore, a new type of defibrillation electrode plate needs to be developed to improve defibrillation effectiveness, ensure the safety of patients and operators, and simplify post-defibrillation cleaning procedures. Utility Model Content

[0007] The purpose of this invention is to overcome the shortcomings of the prior art and provide a defibrillation electrode plate structure.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0009] This utility model provides a defibrillator electrode plate structure, including: a metal sheet, an elastic element connected to the outer peripheral edge of the lower surface of the metal sheet, and the elastic element having an opening area; a conductive gel layer connected to the lower surface of the metal sheet and located within the opening area; and a release film connected to the lower surface of the conductive gel layer; a backing substrate connected to the outer peripheral edge of the upper surface of the metal sheet, and the backing substrate having a window area for exposing the metal sheet.

[0010] In one specific embodiment, the thickness of the backing substrate is 0.08-0.2 mm.

[0011] In one specific embodiment, the thickness of the metal sheet is 0.08-0.2 mm.

[0012] In one specific embodiment, the thickness of the elastic element is 0.08-2 mm.

[0013] In one specific embodiment, the thickness of the release film is 0.08-0.2 mm.

[0014] In one specific embodiment, the thickness of the conductive gel layer is 0.75-2 mm.

[0015] In one specific embodiment, the metal sheet is made of aluminum foil.

[0016] In one specific embodiment, the elastic element is made of foam, PVC, or PU material.

[0017] In one specific embodiment, the backing substrate is made of nonwoven fabric, PU, ​​PVC, or PET.

[0018] In one specific embodiment, the water content of the conductive gel layer is 5-60%.

[0019] The defibrillator electrode plate structure of this invention has the following advantages compared with the prior art: An elastic element is connected to the outer periphery of the lower surface of the metal plate. This elastic element has an opening area, within which a conductive gel layer is connected. When the release film is removed and the defibrillator electrode plate is attached to the skin, the conductive gel layer adheres tightly to the skin. This design effectively solves the problem of uneven and loose contact between traditional electrode plates and the skin, ensuring that the energy output by the defibrillator can be efficiently and stably transmitted to the patient's heart, improving the defibrillation effect and reducing the risk of injury to the patient. Furthermore, the conductive gel layer is pre-set on the lower surface of the metal plate, and its size and position are precisely designed and fixed. During use, simply attaching the electrode plate to the skin allows the conductive gel layer to form a stable conductive connection with the skin, eliminating the need for on-site application of conductive ointment. This method precisely controls the conductive area, avoiding operational risks caused by improper application and ensuring the safety of both the patient and the operator.

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A front view schematic diagram of the defibrillation electrode plate structure provided by this utility model;

[0023] Figure 2 This is an exploded view of the defibrillation electrode plate structure provided by this utility model. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are 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.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0031] See Figures 1 to 2 The specific embodiment shown in this utility model discloses a defibrillator electrode plate structure, including: a metal sheet 10, an elastic element 20 connected to the outer peripheral edge of the lower surface of the metal sheet 10, and the elastic element 20 having an opening area 21, a conductive gel layer 30 connected to the lower surface of the metal sheet 10 and located within the opening area 21, and a release film 40 connected to the lower surface of the conductive gel layer 30.

[0032] Specifically, the elastic element 20 is bonded to the outer periphery of the lower surface of the metal sheet 10, the conductive gel layer 30 is bonded to the lower surface of the metal sheet 10, and the release film 40 is bonded to the conductive gel layer 30 and the elastic element 20 to protect them. In use, the release film 40 is removed, and then the defibrillator electrode plates are adhered to the skin. The elastic element 20 is elastic, preventing discomfort upon contact with the skin. Additionally, the conductive gel layer 30 adheres tightly to the skin. The defibrillator electrode plates are then pressed onto the metal sheet 10 for defibrillation. After use, the defibrillator electrode plates can be directly removed from the skin.

[0033] In other words, by connecting an elastic element 20 to the outer periphery of the lower surface of the metal sheet 10, and the elastic element 20 having an opening area 21 within which a conductive gel layer 30 is connected, when the release film 40 is removed and the defibrillator electrode plate is attached to the skin, the conductive gel layer 30 adheres tightly to the skin. This design effectively solves the problem of uneven and loose contact between the traditional electrode plate and the skin, ensuring that the energy output by the defibrillator can be efficiently and stably delivered to the patient's heart, improving the defibrillation effect and reducing the risk of injury to the patient. Furthermore, the conductive gel layer 30 is pre-set on the lower surface of the metal sheet 10, and its size and position are precisely designed and fixed. During use, simply attaching the electrode plate to the skin allows the conductive gel layer 30 to form a stable conductive connection with the skin, eliminating the need for on-site application of conductive ointment. This method precisely controls the conductive area, avoiding operational risks caused by improper application and ensuring the safety of both the patient and the operator. Furthermore, the defibrillator electrode pads feature an adhesive design, allowing for easy removal from the skin after use. The conductive gel layer 30 is peeled off along with the metal sheet 10, leaving no residue that is difficult to clean. This significantly simplifies post-defibrillation cleaning, reduces the workload of medical staff, and avoids skin irritation and damage caused by improper cleaning. Additionally, the defibrillator electrode pads are convenient to use, enabling timely and efficient defibrillation for patients requiring emergency treatment. For patients needing resuscitation, the electrodes can be pre-attached for immediate defibrillation when needed. Moreover, appropriate defibrillator electrode pads can be selected based on the patient group: they are available in sizes for adults, children, and infants.

[0034] In one embodiment, a backing substrate 50 is attached to the outer peripheral edge of the upper surface of the metal sheet 10, and the backing substrate 50 is provided with a window area 51 for exposing the metal sheet 10. Preferably, the backing substrate 50 is made of non-woven fabric, PU, ​​PVC, or PET.

[0035] Specifically, the backing substrate 50 is adhered to the upper surface of the metal sheet 10, and most of the metal sheet 10 is exposed through the window area 51 to make contact with the electrode plates of the defibrillator.

[0036] In other words, during the storage, transportation, and use of the defibrillator electrode pads, the backing substrate 50, acting as a protective layer for the metal sheet 10, effectively prevents the metal sheet 10 from directly contacting other objects, avoiding scratches and wear on its surface, thereby maintaining the flatness and conductivity of the metal sheet 10. Furthermore, the design of the window area 51 allows medical personnel to clearly see the exposed portion of the metal sheet 10 when the defibrillator electrode pads are attached to the skin, enabling them to more accurately determine the position and orientation of the electrode pads and ensure that the defibrillator's electrode pads are precisely pressed onto the metal sheet 10, thus improving the accuracy and safety of the defibrillation operation.

[0037] In one embodiment, the thickness of the backing substrate 50 is 0.08-0.2 mm.

[0038] Specifically, the 0.08-0.2mm thickness provides the backing substrate 50 with sufficient strength and toughness, enabling it to effectively support and protect the metal sheet 10 during storage, transportation, and use. It can withstand certain external pressure and impact, preventing deformation or damage to the metal sheet 10 due to external forces, thus ensuring the flatness and conductivity of the metal sheet 10. Furthermore, the window area 51 on the backing substrate 50, limited by its 0.08-0.2mm thickness, maintains a clear and accurate shape and size. This allows medical personnel to clearly see the exposed portion of the metal sheet 10 through the window area 51 when attaching the defibrillator electrode pads to the skin, thus more accurately determining the position and orientation of the electrode pads and ensuring that the defibrillator electrode pads are precisely pressed onto the metal sheet 10.

[0039] In one embodiment, the thickness of the metal sheet 10 is 0.08-0.2 mm.

[0040] Specifically, a thickness range of 0.08-0.2 mm ensures that the metal sheet 10 possesses suitable resistivity, enabling rapid and stable current conduction during defibrillation. This guarantees efficient and stable transmission of the defibrillation current, improving defibrillation effectiveness. Thinner metal sheets 10 (e.g., 0.08 mm thick) may have relatively high resistivity, while appropriately thicker sheets (e.g., 0.15 mm) provide more stable conductivity, reducing energy loss during current transmission and enhancing defibrillation performance. Furthermore, the 0.08-0.2 mm thickness provides sufficient mechanical strength for the metal sheet 10, allowing it to withstand certain external forces during storage, transportation, and use without easily deforming or damaging, thus ensuring the stability and reliability of the defibrillation electrode plate. This thickness range of the metal sheet 10 can adapt to various application scenarios, maintaining stable performance in daily storage, transportation, and emergency defibrillation operations.

[0041] In one embodiment, the thickness of the elastic element 20 is 0.08-2 mm.

[0042] Specifically, the thickness range of 0.08-2mm allows the elastic element 20 to have suitable elastic deformation capability. When the defibrillator electrode plate comes into contact with human skin, the elastic element 20 can undergo appropriate elastic deformation, closely conforming to the surface of human skin and avoiding discomfort.

[0043] In one embodiment, the thickness of the release film 40 is 0.08-0.2 mm.

[0044] Specifically, a thickness range of 0.08-0.2 mm ensures that the release film 40 possesses a suitable release force. The release force must be neither too large, lest it damage other components of the defibrillator electrode plate during peeling, nor too small, lest the release film 40 detach on its own during storage and use. This thickness range provides a stable and moderate release force, ensuring the smooth operation of the defibrillator electrode plate during production, packaging, and use.

[0045] In one embodiment, the thickness of the conductive gel layer 30 is 0.75-2 mm.

[0046] Specifically, the thickness range of 0.75-2 mm gives the conductive gel layer 30 suitable resistance and capacitance characteristics, ensuring the stability of power transmission. This suitable thickness reduces power loss during power transmission, allowing the defibrillator's power to be accurately and efficiently delivered to human tissue. Furthermore, the 0.75-2 mm thickness allows the conductive gel layer 30 to adhere tightly to the skin; its flexibility and adhesion meet the requirements for close contact with the skin. This tight adhesion reduces air gaps, improves the conduction efficiency of the defibrillation current, and ensures stable power transmission. Additionally, the conductive gel layer 30 accurately transmits the defibrillator's power, ensuring that the defibrillation power acts accurately and efficiently on human tissue, improving defibrillation effectiveness. Its suitable thickness and performance guarantee efficient and stable power transmission from the defibrillator to the skin, reducing power loss during transmission.

[0047] More specifically, the conductive gel layer 30 is composed of glycerol, water, hydroxymethyl esters, polyacrylates, carboxyl esters, hydroxy esters and amino esters.

[0048] Weigh out the glycerol, hydroxymethyl esters, polyacrylates, carboxyl esters, hydroxy esters, and amino esters, and add them separately to an appropriate amount of water. Under heating (e.g., 60-80℃) and stirring, allow them to initially dissolve or disperse evenly. Then, combine the initially dissolved solutions together and continue stirring for a certain time (e.g., 1-2 hours) to ensure thorough mixing and a homogeneous solution. Add an appropriate amount of crosslinking agent (e.g., boric acid for systems containing hydroxymethyl esters) to the solution to initiate a crosslinking reaction, allowing the components to connect and form a stable three-dimensional network structure. During the crosslinking process, control the reaction conditions (e.g., temperature, pH) to ensure optimal crosslinking results. Pour the crosslinked solution into a mold and shape it. Depending on the needs, freeze-drying or natural moisture balancing treatment may be performed. If freeze drying is used, the gel needs to be frozen at a low temperature (e.g., -40℃) for a certain period of time (e.g., 24-48 hours) and then dried in a vacuum drying oven to precisely control the moisture content. If natural moisture balancing is chosen, the gel is placed in a specific humidity (e.g., relative humidity 60-80%) and temperature (e.g., room temperature) environment to allow it to naturally reach the required moisture content range (25-40%).

[0049] The conductive gel layer 30 can be configured as follows: glycerin 10-50%, water 5-60%, hydroxymethyl ester 5-40%, polyacrylate 5-40%, carboxyl (-COOH) 5-40%, hydroxy (-OH) 5-40%, amino (-NHz) 5-40%, and other 5-40%.

[0050] In one embodiment, the water content of the conductive gel layer 30 is 5-60%.

[0051] Specifically, a water content of 5-60% provides suitable migration channels for ions in the conductive gel layer 30. Water molecules can act as a medium for ion transport, promoting the movement of ions within the gel layer and thus improving the conductivity of the conductive gel layer 30. Appropriate moisture content helps the conductive material to disperse uniformly in the matrix material, reducing agglomeration between conductive materials, improving the continuity and integrity of the conductive network, and further enhancing conductivity. In addition, the conductive gel layer 30 within this moisture content range exhibits good flexibility and adhesion. The presence of water molecules gives the gel layer a certain degree of elasticity, allowing it to adapt to the surface morphology of human skin, adhere tightly to the skin, reduce air gaps, and improve the conduction efficiency of defibrillation energy. Appropriate moisture content can regulate the mechanical strength of the conductive gel layer 30, making it both flexible and able to withstand certain external forces, preventing breakage or deformation, and ensuring stable operation during defibrillation. Furthermore, the water content of 5-60% is similar to that of human skin, resulting in less skin irritation from the conductive gel layer 30. This reduces the occurrence of adverse reactions such as skin allergies and redness, improving user comfort. Preferably, the water content of the conductive gel layer 30 is 5-15%.

[0052] In one embodiment, the metal sheet 10 is made of aluminum foil.

[0053] Specifically, aluminum has a low resistivity, and the metal sheet 10 made of aluminum foil provides a good conductive path, ensuring efficient and stable transmission of defibrillation energy. Low resistivity reduces energy loss during transmission, improving the defibrillator's energy utilization efficiency. Furthermore, after processing and treatment, aluminum foil exhibits excellent uniform conductivity. During defibrillation, energy is evenly distributed across the aluminum foil metal sheet 10, avoiding problems such as localized overheating or current concentration, thus improving defibrillation effectiveness and safety.

[0054] In one embodiment, the elastic element 20 is made of foam, PVC, or PU material. Preferably, the elastic element 20 is made of foam.

[0055] Specifically, the foam elastic element 20 has good elastic cushioning performance, which can reduce skin damage and avoid discomfort when the defibrillator electrode plate comes into contact with human skin.

[0056] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A defibrillator electrode plate structure, characterized in that, include: A metal sheet, wherein an elastic element is connected to the outer peripheral edge of the lower surface of the metal sheet and the elastic element has an opening area, a conductive gel layer is connected to the lower surface of the metal sheet and located within the opening area, and a release film is connected to the lower surface of the conductive gel layer; a backing substrate is connected to the outer peripheral edge of the upper surface of the metal sheet, and the backing substrate has a window area for exposing the metal sheet.

2. The defibrillation electrode plate structure according to claim 1, characterized in that, The thickness of the backing substrate is 0.08-0.2 mm.

3. The defibrillation electrode plate structure according to claim 1, characterized in that, The thickness of the metal sheet is 0.08-0.2 mm.

4. The defibrillation electrode plate structure according to claim 1, characterized in that, The thickness of the elastic element is 0.08-2mm.

5. The defibrillation electrode plate structure according to claim 1, characterized in that, The thickness of the release film is 0.08-0.2 mm.

6. The defibrillation electrode plate structure according to claim 1, characterized in that, The thickness of the conductive gel layer is 0.75-2 mm.

7. The defibrillation electrode plate structure according to claim 1, characterized in that, The metal sheet is made of aluminum foil.

8. The defibrillation electrode plate structure according to claim 1, characterized in that, The elastic element is made of foam, PVC, or PU material.

9. The defibrillation electrode plate structure according to claim 1, characterized in that, The backing substrate is made of non-woven fabric, PU, ​​PVC, or PET.

10. The defibrillation electrode plate structure according to claim 1, characterized in that, The water content of the conductive gel layer is 5-60%.

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