A sealed packaging structure for defibrillation electrode pads

Abstract

This utility model discloses a sealed packaging structure for defibrillator electrode pads, comprising: an aluminum foil packaging bag with a first heat-sealing sealing line, inside which the defibrillator electrode pads are encapsulated; one side of the aluminum foil packaging bag has a wire insertion port; the defibrillator electrode pads are connected to multiple wires; the outer layer of each wire is wrapped with a regularly shaped sealing adhesive layer, which is fitted and sealed in the wire insertion port. The regularly shaped sealing adhesive layer achieves a perfect axial fit with the wire insertion port, avoiding the problem of poor sealing caused by irregular wire shapes in existing sealing structures. Furthermore, it also avoids the increased production costs associated with repeatedly filling and sealing irregular wire joints with sealant.

Description

Technical Field

[0001] This utility model relates to the field of medical device accessory packaging technology, and more specifically to a sealed packaging structure for defibrillator electrode pads, which is suitable for long-term storage and performance maintenance of electrode pads in emergency equipment. Background Technology

[0002] Defibrillation electrodes are key components of a defibrillator, used to connect the defibrillator unit to the human body. During defibrillation, a high voltage of over two thousand volts and a current of tens of amperes are applied to the human body through the electrodes, which objectively requires the defibrillation electrodes to have extremely high safety and reliability.

[0003] Currently, commercially available defibrillator electrodes are generally packaged in aluminum foil bags, and their sealing structure relies on a thermoforming process to form the sealing layer. The typical shelf life of an electrode is 2-3 years, and the main reasons for failure are as follows:

[0004] 1. Defects in the sealing layer: Packaging materials are prone to producing tiny pores (0.1-1μm in diameter) during the hot pressing process, which causes the conductive gel layer on the electrode sheet to come into contact with air through the pores, resulting in water loss or oxidation of the conductive gel layer, thus losing its conductive properties;

[0005] 2. Structural defects: The wire connectors on the electrode sheet are mostly composed of multi-strand wires with irregular shapes. Gaps are likely to exist at the sealing point with the aluminum foil bag, making it difficult to achieve a complete seal through a single hot pressing process. Furthermore, irregular connectors require multiple fillings of sealant, increasing production costs.

[0006] Therefore, how to provide a sealed packaging structure for defibrillator electrode pads that can extend their shelf life and ensure stable conductivity in emergency situations is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0007] In view of this, the present invention provides a sealed packaging structure for defibrillator electrode pads, which can extend the shelf life of defibrillator electrode pads, ensure the stability of their conductivity in emergency scenarios, and reduce the cost of consumable replacement for medical institutions.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A sealed packaging structure for a defibrillator electrode pad includes: an aluminum foil packaging bag with a first heat-sealing sealing line, inside which the defibrillator electrode pad is encapsulated; one side of the aluminum foil packaging bag has a wire insertion opening; the defibrillator electrode pad is connected to multiple wires; the multiple wires are wrapped with a regularly shaped sealing adhesive layer, which is fitted and sealed in the wire insertion opening.

[0010] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a sealed packaging structure for defibrillator electrode pads. A layer of regularly shaped sealing adhesive is wrapped around the wire that interlocks with the wire insertion opening of the packaging bag. This regularly shaped sealing adhesive layer achieves a perfect axial fit between the wire and the insertion opening, avoiding the problem of poor sealing caused by irregular wire shapes in existing sealing structures. Furthermore, it also avoids the increased production costs associated with repeatedly filling and sealing irregular wire joints with sealant.

[0011] Therefore, by modifying the wire connector into a regular shape and making it axially fitted with the wire insertion opening of the packaging bag, this utility model can extend the shelf life of the defibrillator electrode pads and ensure their stable conductivity in emergency situations.

[0012] Furthermore, the shape of the sealant layer is elliptical, rectangular, or rounded rectangular.

[0013] Furthermore, the aluminum foil packaging bag is hot-pressed with a second hot-press sealing line inside the first hot-press sealing line, and the defibrillator electrode is located inside the second hot-press sealing line.

[0014] The beneficial effect of adopting the above technical solution is that when the first heat-sealing seal fails, the packaging bag can still maintain a seal through the second heat-sealing seal.

[0015] Furthermore, the upper and lower bags of the aluminum foil packaging bag are connected by multiple pressing and sealing points arranged in a multi-layered stepped manner, thereby forming a labyrinth-shaped sealing structure between the defibrillator electrode sheet and the second heat-press sealing line.

[0016] The beneficial effects of adopting the above technical solution are: increasing the sealing path length and contact pressure, making the pressure distribution more uniform, and reducing straight leakage channels.

[0017] This utility model provides a sealing packaging method for the aforementioned defibrillator electrode pad sealing packaging structure, comprising the following steps:

[0018] Step 1: After arranging the multiple strands of the wire neatly, place them into the cavity of the curing mold, and inject sealant into the cavity so that the outer layer of the wire is covered with a sealant layer with a regular shape.

[0019] Step 2: Place the defibrillator electrode pad into the aluminum foil packaging bag, and then heat-press and seal the aluminum foil packaging bag after the sealing adhesive layer is embedded in the wire insertion opening of the aluminum foil packaging bag. Finally, heat-press and seal the aluminum foil packaging bag, forming the first heat-press sealing line on the aluminum foil packaging bag.

[0020] Furthermore, when the wire is placed into the cavity of the curing mold, it is necessary to ensure that the wire is in close contact with at least two side walls of the cavity.

[0021] Furthermore, it also includes step three: hot-pressing a second hot-press sealing line on the aluminum foil packaging bag at the position inside the first hot-press sealing line.

[0022] Furthermore, it also includes step four: hot-pressing multiple multi-layered stepped sealing points on the aluminum foil packaging bag at the position between the defibrillator electrode and the second hot-press sealing line, thereby forming a labyrinth-shaped sealing structure between the defibrillator electrode and the second hot-press sealing line.

[0023] This invention, through the aforementioned sealed packaging structure and method, can extend the shelf life of defibrillator electrode pads to 5 years or more, ensuring the stability of their conductivity in emergency situations and reducing the cost of consumable replacement for medical institutions. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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 embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of a sealed packaging structure for a defibrillation electrode pad provided by this utility model.

[0026] Figure 2 This is a schematic diagram of the sealing adhesive layer being fitted and sealed to the wire penetration opening.

[0027] Figure 3 This is a schematic diagram showing that the sealant layer is elliptical.

[0028] Figure 4 This is a schematic diagram showing a rectangular sealant layer.

[0029] Figure 5 This is a schematic diagram showing that the sealant layer is a rounded rectangle.

[0030] Figure 6 This is a schematic diagram showing the contact between the wire and the upper and lower side walls of the mold cavity.

[0031] Figure 7 This is a schematic diagram showing the contact between the wire and the left and right side walls of the mold cavity. Detailed Implementation

[0032] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0033] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] 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.

[0035] 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 fixed 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.

[0036] This utility model discloses a sealed packaging structure for a defibrillator electrode pad, comprising: an aluminum foil packaging bag 1 with a first heat-sealing sealing line 11, which encapsulates a defibrillator electrode pad 2 inside; one side of the aluminum foil packaging bag 1 has a wire insertion opening 12; the defibrillator electrode pad 2 is connected to multiple wires 3; the multiple wires 3 are wrapped with a regularly shaped sealing adhesive layer 4; the sealing adhesive layer 4 is fitted and sealed in the wire insertion opening 12.

[0037] Among them, the shape of the sealant layer 4 is elliptical (e.g., Figure 3 As shown), rectangle (as shown) Figure 4 As shown), rounded rectangle (e.g.) Figure 5 (As shown).

[0038] In some embodiments, the aluminum foil packaging bag 1 is hot-pressed with a second hot-press sealing line 13 inside the first hot-press sealing line 11, and the defibrillator electrode 2 is located inside the second hot-press sealing line 13.

[0039] In other embodiments, the upper bag 101 and the lower bag 102 of the aluminum foil packaging bag 1 are pressed together by multiple pressing and sealing points 14 arranged in a multi-layered stepped manner, thereby forming a labyrinth-shaped sealing structure between the defibrillator electrode 2 and the second heat-pressed sealing line 13.

[0040] This utility model also provides a sealing packaging method for a sealed packaging structure of defibrillation electrode pads, comprising the following steps:

[0041] Step 1: After arranging the multi-strand wires 3 neatly, place them into the regularly shaped cavity of the curing mold 5, and inject sealant 6 (such as epoxy resin, silicone or polyurethane glue) into the cavity. The sealant 6 penetrates into the gaps between the wires and fills the cavity. The sealant is cured (cured at room temperature or by heating), thereby wrapping the outer layer of the wires 3 with a regularly shaped sealant layer 4.

[0042] Step 2: Place the defibrillator electrode 2 into the aluminum foil packaging bag 1, and then heat-press the sealing adhesive layer 4 into the wire insertion opening 12 of the aluminum foil packaging bag 1 for sealing. Then, heat-press the aluminum foil packaging bag 1 at a temperature of 120-200℃ and a pressure of 0.2-1.0MPa for 3-10 seconds to form the first heat-press sealing line 11 on the aluminum foil packaging bag 1.

[0043] When the wire 3 is placed into the cavity of the curing mold 5, the wire 3 must be in close contact with at least two side walls 51 in the cavity to ensure that the wire does not shift or bend during the filling of sealant 6.

[0044] In some embodiments of the above method, step three is also included: hot-pressing a second hot-press sealing line 13 on the aluminum foil packaging bag 1 at the position inside the first hot-press sealing line 11.

[0045] In some other embodiments of the above method, step four is also included: pressing multiple multi-layered stepped sealing points 14 on the aluminum foil packaging bag 1 at the position between the defibrillator electrode 2 and the second hot-press sealing line 13, thereby forming a labyrinth-shaped sealing structure between the defibrillator electrode 2 and the second hot-press sealing line 13.

[0046] Among them, multi-layer stepped sealing and double-sealing line sealing only require changing different hot press molds.

[0047] The advantages of this utility model are as follows:

[0048] 1. Sealing failure: By using standardized wire connectors, double-layer seals, and a labyrinth-shaped sealing structure, micropore defects are eliminated, reducing the water loss rate of the conductive gel to below 0.5% / year;

[0049] 2. Process complexity: The standardized joint design simplifies the sealing process and increases production efficiency by 40%.

[0050] 3. The standardized wire connector design effectively reduces the porosity of the sealing layer, avoids the need for injection operations, is more efficient, and prevents leakage.

[0051] Experimental results verification of this utility model:

[0052] 1. Accelerated aging test: After being stored at 60℃ / 75%RH for 180 days, the change rate of the conductivity resistance of the sample of this utility model is <2% (national standard requirement <10%).

[0053] 2. Clinical testing: In 500 emergency cases, the electrode activation success rate was 99.8%, which is 12% higher than that of traditional products.

[0054] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0055] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sealed packaging structure for defibrillation electrode pads, characterized in that, include: An aluminum foil packaging bag (1) with a first heat-sealing sealing line (11) contains a defibrillator electrode pad (2) inside. One side of the aluminum foil packaging bag (1) has a wire insertion port (12). The defibrillator electrode pad (2) is connected to multiple wires (3). The multiple wires (3) are wrapped with a regularly shaped sealing adhesive layer (4). The sealing adhesive layer (4) is fitted and sealed in the wire insertion port (12).

2. The sealed packaging structure of a defibrillator electrode pad according to claim 1, characterized in that, The sealant layer (4) is elliptical, rectangular, or rounded rectangular in shape.

3. The sealed packaging structure of a defibrillator electrode pad according to claim 1, characterized in that, The aluminum foil packaging bag (1) is hot-pressed with a second hot-press sealing line (13) inside the first hot-press sealing line (11), and the defibrillator electrode (2) is located inside the second hot-press sealing line (13).

4. The sealed packaging structure of a defibrillator electrode pad according to claim 3, characterized in that, The upper bag (101) and lower bag (102) of the aluminum foil packaging bag (1) are pressed together by multiple pressing and sealing points (14) arranged in a multi-layer stepped manner, thereby forming a labyrinth-shaped sealing structure between the defibrillator electrode sheet (2) and the second heat-press sealing line (13).

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