Defibrillation electrode pad structure

Abstract

This defibrillation electrode pad structure provides a solution that eliminates the need to apply conductive paste on-site, allowing for precise control of the conductive area, avoiding operational risks due to improper application, and ensuring the safety of both the patient and the operator. [Solution] The defibrillation electrode pad structure includes a metal plate 10, an elastic member 20 is connected to the outer peripheral edge of the lower surface of the metal plate, an opening region 21 is provided in the elastic member, a conductive gel layer 30 is connected to the lower surface of the metal plate and within the opening region, a release film 40 is connected to the lower surface of the conductive gel layer, a backing substrate 50 is connected to the outer peripheral edge of the upper surface of the metal plate, and a window region 51 is provided in the backing substrate so as to expose the metal plate. In this invention, after peeling off the release film, when the lower surface of the defibrillation electrode pad is attached to the skin of the human body, the conductive gel layer is tightly attached to the skin of the human body, and the metal plate exposed on the upper surface directly contacts the metal electrode of the defibrillator to complete electrical defibrillation and improve the defibrillation effect.

Description

Technical Field

[0001] The present invention relates to the technical field of defibrillation electrode pads, and particularly to the structure of defibrillation electrode pads.

Background Art

[0002] In the field of medical emergencies, cardiac arrest is an emergency threatening life, and timely and effective external defibrillation is one of the important measures to save the lives of cardiac arrest patients. Currently, the commonly used automatic external defibrillators in the industry often perform external defibrillation operations using the metal electrode pads attached to the defibrillator.

[0003] Conventional defibrillation methods are mainly divided into two types: when performing external defibrillation, one is to directly press the metal electrode pad against the human skin for cardiac defibrillation, and the other is to apply a conductive paste to the skin area and then press the electrode pad against the human skin for cardiac defibrillation. However, both of these two conventional defibrillation methods have many defects.

[0004] First, the defibrillation electrode pad usually has a metal planar structure. In the actual use process, since the human skin surface is not completely flat, it is difficult for the electrode pad to be in a completely flat state when it contacts the skin, and the contact between the electrode pad and the skin is not sufficiently tight. Due to such non-tight contact, the energy output from the defibrillator cannot be effectively transmitted to the patient's heart, so the output energy is insufficient, which affects the defibrillation effect and reduces the survival rate. In addition, due to the non-tight contact, the current is unevenly distributed on the skin surface, which may also increase the risk of injuring the patient.

[0005] Next, there are a series of problems in the procedure of applying the conductive paste. It is difficult to precisely control the size of the area to which the conductive paste is applied. If the application area is too large, residual conductive paste in areas not covered by the electrode pads can conduct current to the operator, potentially causing electric shock injury. If the application area is too small, the electrode pads cannot completely cover the application area, resulting in unstable electric shock energy and affecting the defibrillation effect. Furthermore, after the defibrillation procedure is complete, cleaning off the conductive paste remaining on the skin is troublesome, not only increasing the workload of medical personnel but also potentially irritating and damaging the patient's skin.

[0006] Therefore, we will develop a novel defibrillation electrode pad that improves the effectiveness of defibrillation, ensures the safety of both the patient and the operator, and simplifies the cleaning process after defibrillation. [Overview of the project] [Problems that the invention aims to solve]

[0007] The present invention aims to overcome the shortcomings of the prior art and provide a defibrillation electrode pad structure. [Means for solving the problem]

[0008] To solve the above technical problems, this invention employs the following technical means.

[0009] A defibrillation electrode pad structure according to an embodiment of the present invention includes a metal plate, an elastic member connected to the outer peripheral edge of the lower surface of the metal plate, an opening region provided in the elastic member, a conductive gel layer connected to the lower surface of the metal plate and within the opening region, 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 plate, and a window region provided in the backing substrate so as to expose the metal plate. [Effects of the Invention]

[0010] The defibrillation electrode pad structure of this invention has the following beneficial effects compared to the conventional technology. An elastic member is connected to the outer peripheral edge of the lower surface of a metal plate, an opening region is provided in the elastic member, and a conductive gel layer is connected within the opening region. When the defibrillation electrode pad is attached to the skin of the human body after peeling off the release film, the conductive gel layer adheres tightly to the skin. This design effectively solves the problem that conventional electrode pads do not have flat or tight contact with the skin, ensuring that the energy output from the defibrillator is efficiently and stably transmitted to the patient's heart, improving the defibrillation effect and reducing the risk of electric shock to the patient. Furthermore, the conductive gel layer is pre-provided on the lower surface of the metal plate, and its size and position are precisely designed and fixed. When using the device, a stable conductive connection between the conductive gel layer and the skin can be formed simply by attaching the electrode pad to the skin, eliminating the need to apply conductive paste on-site. This method allows for precise control of the conductive area, avoids the risk of operation due to improper application, and ensures the safety of both the patient and the operator.

[0011] The present invention will be further described below with reference to the drawings and specific embodiments. [Brief explanation of the drawing]

[0012] [Figure 1] This is a schematic front view of the defibrillation electrode pad structure according to the present invention. [Figure 2] This is an exploded schematic diagram of the defibrillation electrode pad structure according to the present invention. [Modes for carrying out the invention]

[0013] In the specific embodiments shown in Figures 1 and 2, the defibrillation electrode pad structure according to the present invention includes a metal plate 10, an elastic member 20 is connected to the outer peripheral edge of the lower surface of the metal plate 10, an opening region 21 is provided in the elastic member 20, a conductive gel layer 30 is connected to the lower surface of the metal plate 10 and within the opening region 21, and a release film 40 is connected to the lower surface of the conductive gel layer 30.

[0014] Specifically, the elastic member 20 is bonded to the outer peripheral edge of the lower surface of the metal plate 10, the conductive gel layer 30 is bonded to the lower surface of the metal plate 10, and the release film 40 is bonded to the conductive gel layer 30 and the elastic member 20 to protect them. When in use, the release film 40 is peeled off, and then the defibrillation electrode pads are attached to the skin of the human body. The elastic member 20 is elastic and avoids causing discomfort when it comes into contact with the skin of the human body, and the conductive gel layer 30 can adhere tightly to the skin of the human body. Then, the electrode pads of the defibrillator are pressed against the metal plate 10 to perform defibrillation, and after use, the defibrillation electrode pads can be directly peeled off from the skin.

[0015] In other words, an elastic member 20 is connected to the outer peripheral edge of the lower surface of the metal plate 10, an opening region 21 is provided in the elastic member 20, and a conductive gel layer 30 is connected within the opening region 21. This ensures that when the defibrillation electrode pad is attached to the skin of the human body after peeling off the release film 40, the conductive gel layer 30 adheres tightly to the skin. This design effectively solves the problem of conventional electrode pads not being flat and tightly in contact with the skin, ensuring that the energy output from the defibrillator is efficiently and stably transmitted to the patient's heart, improving the defibrillation effect and reducing the risk of electric shock to the patient. Furthermore, the conductive gel layer 30 is pre-installed on the lower surface of the metal plate 10, and its size and position are precisely designed and fixed. When using the device, simply attaching the electrode pad to the skin allows for a stable conductive connection between the conductive gel layer 30 and the skin, eliminating the need to apply conductive paste on-site. This method allows for precise control of the conductive area, avoids the risks of improper application during operation, and ensures the safety of both the patient and the operator. Furthermore, the defibrillation electrode pad structure employs an adhesive design, allowing the defibrillation electrode pad to be directly peeled off the skin after use. The conductive gel layer 30 is peeled off together with the metal plate 10, leaving no difficult-to-clean substances on the skin. This significantly simplifies the post-defibrillation cleaning process, reducing the workload of medical personnel and avoiding skin irritation and damage due to improper cleaning. In addition, the defibrillation electrode pad is easy to use, enabling timely and efficient cardiac defibrillation for patients urgently requiring defibrillation. For patients requiring life-saving treatment, the defibrillation electrode pad can be applied early, allowing for immediate cardiac defibrillation when needed. Moreover, the appropriate defibrillation electrode pad can be selected according to the group of patients using it, and can be divided into types for adults, children, infants, etc., according to their dimensions.

[0016] In one embodiment, a backing substrate 50 is connected to the outer peripheral edge of the upper surface of the metal plate 10, and a window area 51 is provided in the backing substrate 50 so as to expose the metal plate 10. Preferably, the backing substrate 50 is made of nonwoven fabric, PU, ​​PVC, or PET.

[0017] Specifically, the backing substrate 50 is attached to the upper surface of the metal plate 10, and most of the area of ​​the metal plate 10 is exposed through the window area 51 so as to be in contact with the electrode pads of the defibrillator.

[0018] In other words, during the storage, transport, and use of the defibrillation electrode pads, the backing substrate 50 acts as a protective layer for the metal plate 10, effectively preventing direct contact between the metal plate 10 and other objects, thereby maintaining the flatness and conductivity of the metal plate 10 and preventing the surface of the metal plate 10 from being scraped or worn. Furthermore, the design of the window area 51 allows medical personnel to clearly see the exposed portion of the metal plate 10 when attaching the defibrillation electrode pads to the skin of the human body. This allows for more accurate determination of the position and orientation of the electrode pads, ensuring that the defibrillator's electrode pads are pressed accurately against the metal plate 10, thereby improving the accuracy and safety of the defibrillation operation.

[0019] In one embodiment, the thickness of the backing substrate 50 is 0.08 to 0.2 mm.

[0020] Specifically, a thickness of 0.08 to 0.2 mm provides sufficient strength and toughness to the backing substrate 50, effectively supporting and protecting the metal plate 10 during storage, transportation, and use. It can withstand pressure and impact from certain external forces, preventing deformation and damage to the metal plate 10 due to external forces, thereby ensuring the flatness and conductivity of the metal plate 10. Furthermore, the window area 51 in the backing substrate 50 maintains a clear and accurate shape and dimensions within the thickness limit of 0.08 to 0.2 mm. This allows medical personnel to clearly see the exposed portion of the metal plate 10 through the window area 51 when attaching the defibrillator electrode pads to the skin, enabling them to more accurately determine the position and orientation of the electrode pads and ensuring that the defibrillator electrode pads are accurately pressed against the metal plate 10.

[0021] In one embodiment, the thickness of the metal plate 10 is 0.08 to 0.2 mm.

[0022] Specifically, within the thickness range of 0.08 to 0.2 mm, the metal plate 10 has an appropriate resistivity, can conduct current quickly and stably during the defibrillation process, ensures that the defibrillation current can be efficiently and stably transmitted, and can improve the defibrillation effect. A thin metal plate 10 (for example, with a thickness of 0.08 mm) may have a relatively high resistivity, while a metal piece 10 with an appropriate thickness (for example, 0.15 mm) provides more stable conductivity, reduces energy loss during the current transmission process, and can improve the defibrillation effect. Also, within the thickness range of 0.08 to 0.2 mm, sufficient mechanical strength is provided to the metal plate 10, so that the metal plate 10 can withstand a certain external force during storage, transportation, and use, is not easily deformed or damaged, and guarantees the stability and reliability of the defibrillation electrode pad. The metal plate 10 within this thickness range can adapt to various usage scenarios and maintain stable performance regardless of daily storage, transportation, or emergency defibrillation operations.

[0023] In one embodiment, the thickness of the elastic member 20 is 0.08 to 2 mm.

[0024] Specifically, within the thickness range of 0.08 to 2 mm, the elastic member 20 has an appropriate elastic deformation ability. When the defibrillation electrode pad contacts the human skin, the elastic member 20 can elastically deform appropriately and be closely attached to the human skin surface, avoiding the generation of discomfort.

[0025] In one embodiment, the thickness of the release film 40 is 0.08 to 0.2 mm.

[0026] Specifically, within the thickness range of 0.08 to 0.2 mm, the release film 40 has an appropriate release force. The release force should not be too large to prevent damage to other components of the defibrillation electrode pad during peeling, and should not be too small to prevent the release film 40 from falling off by itself during storage and use. The release film 40 within this thickness range provides a stable and appropriate release force, ensuring the smooth progress of the production, packaging, and use processes of the defibrillation electrode pad.

[0027] In one embodiment, the thickness of the conductive gel layer 30 is 0.75 to 2 mm.

[0028] Specifically, within a thickness range of 0.75 to 2 mm, the conductive gel layer 30 has appropriate resistance and capacitance characteristics, ensuring the stability of electrical energy transmission. The appropriate thickness reduces electrical energy loss when the conductive gel layer 30 transmits electrical energy, allowing for accurate and efficient transmission of the defibrillator's electrical energy to human tissue. Furthermore, within a thickness range of 0.75 to 2 mm, the conductive gel layer 30 can adhere tightly to human skin. Its flexibility and adhesiveness meet the requirement for tight contact with human skin. This tight adhesion reduces air gaps, improves the conduction efficiency of the defibrillation current, and ensures stable electrical energy transmission. Additionally, the conductive gel layer 30 accurately transmits the defibrillator's electrical energy, ensuring that the defibrillation electrical energy acts accurately and efficiently on human tissue, thereby improving the defibrillation effect. The appropriate thickness and performance ensure efficient and stable transmission of electrical energy from the defibrillator to human skin, reducing electrical energy loss during the transmission process.

[0029] More specifically, the conductive gel layer 30 consists of components such as glycerin, water, hydroxymethyl acid esters, polyacrylates, carboxyesters, hydroxyesters, and aminoesters.

[0030] The weighed glycerin, hydroxymethyl esters, polyacrylates, carboxyesters, hydroxyesters, and aminoesters are each added to an appropriate amount of water and pre-dissolved or uniformly dispersed under heating (e.g., 60-80°C) and stirring conditions. Next, the pre-dissolved component solutions are mixed and stirred for a certain period of time (e.g., 1-2 hours) to ensure that each component is thoroughly and uniformly mixed to form a homogeneous mixed solution. An appropriate amount of crosslinking agent is added to the mixed solution (for example, boric acid can be used as a crosslinking agent for systems containing components such as hydroxymethyl esters) to initiate the crosslinking reaction, linking the component substances together to form a stable three-dimensional network structure. During the crosslinking process, the reaction conditions (e.g., temperature, pH value, etc.) are controlled to ensure that the crosslinking effect is optimal. The crosslinked solution is poured into a mold for molding, and freeze-drying or natural equilibrium moisture treatment can be selectively performed as needed. When freeze-drying is used, it is necessary to freeze the material at a low temperature (e.g., -40°C) for a certain period of time (e.g., 24-48 hours) and then dry it in a vacuum drying box to precisely control the moisture content. If natural equilibrium of moisture is chosen, the gel material is placed in an environment with a specific humidity (e.g., relative humidity of 60-80%) and temperature (e.g., room temperature) to allow it to naturally reach the desired moisture content range (25-40%).

[0031] The composition ratio of the conductive gel layer 30 can be set as follows: glycerin 10-50%, water 5-60%, hydroxymethyl ester 5-40%, polyacrylate 5-40%, carboxyl group (-CO0H) 5-40%, hydroxyl group (-0H) 5-40%, amino group (-NH2) 5-40%, and others 5-40%.

[0032] In one embodiment, the water content of the conductive gel layer 30 is 5-60%.

[0033] Specifically, a water content of 5-60% provides appropriate migration pathways for ions in the conductive gel layer 30. Water molecules, acting as a medium for ion transport, facilitate the movement of ions within the gel layer in the conductive material, thereby improving the conductive performance of the conductive gel layer 30. An appropriate amount of water helps to uniformly disperse the conductive material within the matrix material, reducing aggregation between conductive materials, improving the continuity and integrity of the conductive network, and further enhancing conductive performance. Furthermore, the conductive gel layer 30 within this water content range possesses high flexibility and adhesion. The presence of water molecules gives the gel layer a certain elasticity, allowing it to adapt to the surface morphology of human skin, adhere tightly to the skin, reduce air gaps, and improve the efficiency of defibrillation electrical energy conduction. With an appropriate water content, the conductive gel layer 30 not only has regulated mechanical strength and a certain degree of flexibility, but can also withstand certain external forces, making it less prone to rupture or deformation, ensuring stable operation during the defibrillation process. Furthermore, since a water content of 5-60% is close to that of human skin, the conductive gel layer 30 is less irritating to the skin, reducing the occurrence of adverse reactions such as skin allergies and redness, and improving patient comfort. Preferably, the water content of the conductive gel layer 30 is 5-15%.

[0034] In one embodiment, the metal plate 10 is made of aluminum foil.

[0035] Specifically, aluminum has low resistivity, and the metal plate 10 made of aluminum foil provides a high conductive path, ensuring that defibrillation electrical energy can be transmitted efficiently and stably. The low resistivity reduces losses during the transmission of electrical energy, improving the efficiency of electrical energy utilization in the defibrillator. Furthermore, after processing and treatment, aluminum foil has high, uniform conductivity. During the defibrillation process, electrical energy can be uniformly distributed across the aluminum foil metal plate 10, avoiding problems such as localized overheating or current concentration, thereby improving defibrillation effectiveness and safety.

[0036] In one embodiment, the elastic member 20 is manufactured from foam, PVC, or PU material. Preferably, the elastic member 20 is manufactured from foam.

[0037] Specifically, the foam elastic member 20 has high elastic cushioning performance, which reduces skin damage and prevents discomfort when the defibrillation electrode pad comes into contact with the human skin.

[0038] The above embodiments are preferred embodiments of the present invention, and in addition, the present invention may be realized in other forms, all of which fall within the scope of protection of the present invention as long as they do not depart from the spirit of the present technical means. [Explanation of Symbols]

[0039] 10:Metal plate 20: The above elastic member 21:Aperture area 30: Conductive gel layer 40: Release film 50: Backing board 51: Window area

Claims

1. A defibrillation electrode pad structure characterized by including a metal plate, having an elastic member connected to the outer peripheral edge of the lower surface of the metal plate, an opening region provided in the elastic member, a conductive gel layer connected to the lower surface of the metal plate and within the opening region, 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 plate, and a window region provided in the backing substrate so as to expose the metal plate.

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

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

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

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

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

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

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

9. The defibrillation electrode pad structure according to claim 1, characterized in that the backing substrate is made of nonwoven fabric, PU, ​​PVC, or PET.

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

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