JPH0522163Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention is suitably employed in medical electrodes, connectors used to remove static electricity from adherends, or for electrical connection with adherends. The present invention relates to an adhesive electrode plate with a terminal portion.

(b) Prior art Electrode plates that are adhered and fixed to the patient's skin surface and used to transmit electrical signals from the biological skin surface to medical/diagnostic equipment, or for removing static electricity on the surface of an adherend or adherends. As a connector used for electrical connection, etc., a connector in which a clip, a hook, or a connecting terminal for inserting a pin is attached to the terminal part of an adhesive electrode plate has been proposed.

(c) Problems that the invention aims to solve However, with this adhesive electrode plate, the main body and the connection terminals such as clips are separate pieces, and the number of parts increases, making management complicated and requiring many manufacturing steps. As a result, there are problems such as increased manufacturing costs.

In particular, when a conventional adhesive electrode plate is used as a medical electrode, the adhesive electrode plate is composed of an adhesive electrode body and a connection terminal such as a clip attached to the edge of the body. When the terminal is erected and connected to the terminal of a medical/diagnostic device, the adhesive electrode plate adhering to the skin is pulled up and peeled off at the connection terminal, and as a result, the connection terminal Cleavage force acts between the area and the skin surface, creating stress, and since the connection terminal area is peeled off in this way, the electrode plate becomes insufficiently bonded and the stability of the electrical signal is lost. This phenomenon becomes a problem that cannot be ignored when the above-mentioned adhesive electrode plate is used for long-term monitoring.

(d) Means for solving the problem As a result of intensive studies to solve the above problem, the present inventors decided to create a cut in the adhesive electrode plate and apply heat or irradiation to the cut point. The inventors have discovered that the cut portion can be configured so that it contracts and protrudes outward, and that the protruding cut portion can be used as a connection terminal portion for connection to a terminal of a connected object (device) such as a medical/diagnostic device. This led to the completion of the idea.

That is, the present invention is an adhesive electrode plate in which a flexible conductive adhesive layer is laminated on one side of a flexible conductive substrate, and the conductive adhesive layer is substantially on the conductive substrate. A non-contact area is formed, while a shrinkable layer is laminated on the other side of the conductive substrate, and both the shrinkable layer and the conductive substrate have a portion corresponding to the non-contact area. In this method, a cut is provided along the direction of shrinkage of the shrinkable layer, and the cut portion is configured to protrude outward as the shrinkable layer contracts.

The present invention will be explained in detail below.

The conductive substrate used in the present invention is not particularly limited as long as it is a flexible and conductive foil or sheet (film).

Preferred embodiments of such flexible conductive substrates include, for example, the following.

The flexible conductive substrate is made of platinum, gold, silver, copper, zinc, tin, aluminum, nickel, indium, or an alloy consisting of a combination of these metals, or an alloy based on these metals, or stainless steel. , and made of foil or sheet with a thickness of 10 to 500 μm.

The flexible conductive substrate is platinum with a thickness of less than 10 μm,
Metal foil made of gold, silver, copper, zinc, tin, aluminum, nickel, indium, or a combination of these metals, or an alloy containing these metals as the main component, or stainless steel, and the metal foil. It is made of a laminated film with a reinforcing plastic film provided on one side.

Examples of such plastic films include polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate, ethylene-vinyl acetate copolymers, polyvinyl chloride, polyvinylidene chloride, polyvinyl formal, polytetrafluoroethylene,
Examples include films made of at least one synthetic resin selected from the group consisting of acrylic resin, polyurethane, polyamide, polyimide, and the like.

The flexible conductive substrate is formed of a plastic film, paper, woven fabric, or non-woven fabric on which a metal is deposited or electrolessly plated, or a plastic film, paper, woven fabric, or non-woven fabric laminated with a metal foil.

Examples of the plastic film used here include films made of the above-mentioned synthetic resins.

Further, examples of the paper, woven fabric, or nonwoven fabric used here include those made of synthetic resin, cellulose, cotton cloth, or the like.

In addition, the flexible conductive adhesive layer used in the present invention adheres and fixes the electrode plate to the adherend, and transfers the electricity (signal) received from the adherend to which the electrode plate is attached to the conductive substrate. It is for sending to connected objects (devices) such as medical/diagnostic equipment via the

This conductive adhesive layer is made of various metal powders,
A conductivity imparting agent such as carbon powder or an aqueous solution (electrolyte) of potassium chloride or sodium chloride, polysaccharides such as Karaya gum, semi-synthetic polymer substances such as various celluloses, polyacrylic acid and/or its salts,
It is a conductive layer composed of a mixture with a tackifying agent such as a synthetic polymeric material such as a polyacrylate derivative, a homopolymer or a copolymer of polyvinyl alcohol or other hydrophilic polymers.

In the present invention, when laminating the flexible conductive adhesive layer on one side of the flexible conductive substrate, there is a non-contact area on the conductive substrate where the conductive adhesive layer is not substantially attached. On the other hand, a shrinkable layer is laminated on the other side of the conductive substrate, that is, on the side opposite to the conductive adhesive layer side of the conductive substrate.

The shrinkable layer used in the present invention is not particularly limited as long as it contracts in response to heat or radiation, thereby causing the cut points described below to protrude outward.

Examples of the heat source include a hot air source such as a hair dryer, a heating iron, and the like.

Further, the above-mentioned irradiation rays include at least one selected from sunlight, ultraviolet rays, electron beams, radiation, and the like.

The heat-shrinkable layer is mainly made of polyester, polyvinyl chloride, polypropylene, polyethylene, ethylene-vinyl acetate copolymer, polyvinylidene chloride, polyvinyl formal, polytetrafluoroethylene, acrylic resin, polyurethane, polyamide, polyimide, or any of these. Examples include sheets (films), foams, nonwoven fabrics, and woven fabrics made of copolymers as components.

Then, these sheets or the like may be laminated on the conductive substrate, or a heat-shrinkable layer may be laminated by coating the resin paint.

In addition, the layer that cures or three-dimensionally crosslinks in response to the irradiation rays and shrinks as a result of the irradiation is as follows:
Acrylic resin, polyester, polyurethane or acrylic oligomer, polyester oligomer,
Examples of this layer include polyurethane oligomers and at least one type selected from the group consisting of these monomers, and this layer is also laminated on a conductive substrate in the same way as the heat-shrinkable layer. Ru.

The most significant feature of the present invention is that the shrinkable layer and the conductive substrate have a portion where the contractile layer shrinks at a location corresponding to a non-contact area where the conductive adhesive layer is not substantially attached. Cuts are provided along the direction, and the cut portions of the shrinkable layer are configured to roll up and protrude outward as the shrinkable layer contracts.

Furthermore, on the conductive substrate, a non-contact area to which the conductive adhesive layer is not substantially attached is formed by shrinking a shrinkable layer laminated on the other side of the conductive substrate. This is to make it easy for both the contractile layer and the conductive substrate to protrude outward at the cut point, and in this sense, it is particularly important if the cut is easily rolled up by contracting the contractile layer. It is not limited.

In forming a non-contact area on the conductive substrate, preferred embodiments include the following structure.

That is, when forming a conductive adhesive layer on a conductive substrate, a non-contact area is formed excluding the conductive adhesive layer at a location corresponding to the area.

The non-contact area may be formed by interposing a non-adhesive liner layer between the conductive substrate and the conductive adhesive layer at a location corresponding to the area.

The non-adhesive liner layer is not particularly limited, but it is particularly preferable to use a compressed foam in order to easily make the cut points stand up.

In addition, in the present invention, the cuts formed in the contractile layer are contracted and protruded outward during use, and these protruding parts can be used as terminals or terminals of objects to be connected such as medical diagnostic equipment. It connects to terminals, etc., and in this sense, it is not particularly limited as long as it has a structure in which the cut portion rolls up and protrudes outward when the cut portion contracts; It is preferable if the shrinkage exists in one direction, such as in a uniaxially stretched film, and the cuts are in the stretching direction because outward protrusion is easy.

Specifically, for example, the cut may be made into a substantially U-shape or a substantially V-shape.
It may be formed into an arbitrary shape such as a letter shape or a U-shape, or it may be formed such that two of these pieces face each other.Furthermore, instead of these, two pieces may be formed at an appropriate distance from each other from the edge of the shrinkable layer. It may also be formed by providing parallel cuts.

(e) Effect The present invention has the above configuration, and since the conductive substrate is not substantially bonded to the conductive adhesive layer, by shrinking the cut portion of the shrinkable sheet, the cut portion is extremely It has the ability to easily roll up and protrude outward. In this case, when there is a direction of shrinkage, such as in a uniaxially stretched film, making cuts in this direction will particularly favor outward protrusion.

In addition, this protruding part can be used as a terminal part to electrically connect to the terminal (alligator clip, etc.) or terminal of the connected device, etc., and the connection can be made extremely easily. Since no connection terminals such as body clips are attached, the number of parts is reduced and the device is not bulky.

When the adhesive electrode plate with a terminal portion of the present invention is used as a medical electrode, the portion of the cut portion that is rolled up and protrudes outward is used as a terminal portion, and the terminal portion and the terminal of a medical/diagnostic device are used. Moreover, the force applied in the direction of peeling off the adhesive electrode plate during this connection is absorbed by the cut portion being rolled up further, so the peeling force is not applied to the adhesive electrode plate itself. This does not occur, and as a result, there is no stress on the surface of the adhesive skin.

(f) Examples Hereinafter, the present invention will be explained in detail based on Examples, but the present invention is not limited thereto.

1 to 5, reference numeral 10 denotes an adhesive electrode plate with a terminal portion having a longitudinal shape in plan view, and the adhesive electrode plate 10 includes a flexible conductive substrate 1 and one side of the conductive substrate 1, that is, In the illustrated example, a flexible conductive adhesive layer 2 is laminated on the back side of the conductive substrate 1, and a contractile layer 3 is laminated on the other side of the conductive substrate 1, that is, the front side of the conductive substrate 1 in the illustrated example. A non-contact area A is formed on the conductive substrate 1 to which the conductive adhesive layer 2 is not substantially attached.

The non-contact area A may be formed in a rectangular shape at the center of the conductive substrate 1, excluding the conductive adhesive layer 2, as shown in FIGS. 1 and 2.
Alternatively, as shown in FIGS. 3 and 6, a non-adhesive liner layer 6 is attached to the conductive substrate 1 described above.
The conductive adhesive layer 2 may be interposed between the conductive adhesive layer 2 and the conductive adhesive layer 2, thereby preventing the conductive adhesive layer 2 from substantially adhering to the conductive substrate 1.

In this case, the conductive substrate 1 has a thickness of
It is made of 100 μm copper foil, and the conductive adhesive layer 2 is made of acrylic adhesive with silver powder added.
The non-adhesive liner layer 6 is interposed with a compressed non-adhesive foam.

When the non-adhesive liner layer 6 is formed of a compressed foam in this manner, its repulsive force makes it easier to roll up the cut portions as described below.

In this case, the shrinkable layer 3 is made of heat-shrinkable polyvinyl chloride resin, and the non-contact area A is provided on both the shrinkable layer 3 and the conductive substrate 1.
Cuts 4 are provided along the shrinkage direction of the shrinkable layer 3 at locations corresponding to the above, and the four cuts are rolled up and outward due to contraction of the shrinkable layer 3 (in this case, heat shrinkage). It protrudes, and this protruding location becomes the terminal portion 5.

The cut 4 will be explained in more detail below.

As shown in Figures 1 and 2, the above cut 4
may be formed by cutting both the contractile layer 3 and the conductive substrate 1 into a U-shape in the thickness direction at a location corresponding to the non-contact area A, or alternatively, the As shown in FIG. 3, at a location corresponding to a non-contact area A formed by interposing a non-adhesive liner layer 6 between the conductive substrate 1 and the conductive adhesive layer 2, the conductive substrate 1 and the conductive adhesive layer 2 are properly connected to each other from their edges. It may be formed by cutting both the conductive substrate 1 and the contractile layer 3 parallel to each other in the thickness direction to provide a cut 4 at an interval, and further, as shown in FIG. At the location corresponding to the non-contact area A, two V-shaped cuts 4 may be formed such that their base ends face each other; As shown in FIG. 6, when forming the U-shaped cut 4 in the center of the non-contact area A, the base end of the cut 4 may be located at the left end of the non-contact area A. It's good.

Although the above embodiment was explained using heat-shrinkable polyvinyl chloride resin as the shrinkable layer 3,
Other heat-shrinkable layers may be used instead.
Furthermore, instead of using a heat-shrinkable layer, a layer that shrinks when exposed to radiation may be used.

Further, by using a horizontally or vertically uniaxially stretched film and making the cuts 4 in the forward direction of the stretching direction, the external protrusion can be made easier.

In addition, in forming the shrinkable layer 3, as shown in FIG. 6, the shrinkable layer 3, which shrinks due to heat or radiation, is laminated or coated around the proximal end of the cut 4, for example, in the shrinkable area B. As a result, the cut 4 may be configured to protrude outward.

With this configuration, a non-shrinkable material can also be used for the outer layer 7, and the range of material selection becomes extremely wide.

Further, as the conductive substrate, other metal foils, metal sheets, or laminated sheets of metal and synthetic resin films (sheets) may be used instead of the above-mentioned ones.

(g) Effects of the invention As a result of the adhesive electrode plate with the terminal portion of the invention having the above-mentioned configuration, the number of parts is reduced, the number of manufacturing steps is small, the manufacturing is simple, and continuous production is possible, making it easy to mass-produce. In the end, the combination of these two results in a significant reduction in manufacturing costs.Furthermore, when making electrical connections, the notches are contracted to make the terminal protrude, and this terminal is used to connect the object to be connected. This has the effect of ensuring reliable connection to the terminals and terminals of (devices).

Furthermore, since the adhesive electrode plate with terminal portions of the present invention does not have terminals such as clips, hooks, or pins, it is not bulky, and therefore has the advantage that packaging, transportation, and inventory can be done at low cost.

Furthermore, when the adhesive electrode plate with terminal part of the present invention is used as a medical electrode, after the electrode plate is adhered to the skin, when the cut part is protruded and the connection part is connected to the terminal of the medical diagnostic device, the cut part is rolled up and no peeling force is applied to the skin surface,
As a result, the adhesive surface is not stressed, and the adhesive can be used in a stable state for a long period of time.

[Brief explanation of drawings]

Fig. 1 is a perspective view of an adhesive electrode plate with a terminal portion of the present invention, Fig. 2 is a sectional view taken along the - line, Fig. 3 is a perspective view showing another embodiment, and Figs. 4 and 5 respectively. FIG. 6 is a plan view showing another embodiment, and a perspective view showing an embodiment in which a contractile layer is provided around the proximal end of the cut. 1... Conductive substrate, 2... Conductive adhesive layer, 3
... Shrinkable layer, 4 ... Cut, 5 ... Terminal part, 6
...Non-adhesive liner layer, 10...Adhesive electrode plate with terminal portion.

Claims (1)

[Claims for Utility Model Registration] (1) An adhesive electrode plate in which a flexible conductive adhesive layer is laminated on one side of a flexible conductive substrate, wherein substantially the conductive adhesive layer is laminated on one side of a flexible conductive substrate. A non-contact area to which no adhesive layer is attached is formed, while a shrinkable layer is laminated on the other surface of the conductive substrate, and both the shrinkable layer and the conductive substrate are covered with the non-contact area. A terminal characterized in that a cut is provided along the contraction direction of the shrinkable layer at a location corresponding to the region, and the cut location is configured to protrude outward as the contractile layer contracts. Adhesive electrode plate with parts. (2) The flexible conductive substrate is made of platinum, gold, silver, copper, zinc, tin, aluminum, nickel, indium, or an alloy consisting of a combination of these metals, or an alloy or stainless steel containing these metals as the main components. The adhesive electrode plate with a terminal portion according to claim 1, which is a metal foil or metal sheet with a thickness of 10 to 500 μm. (3) The flexible conductive substrate is platinum with a thickness of 10 μm or less,
Metal foil made of gold, silver, copper, zinc, tin, aluminum, nickel, indium, or a combination of these metals, or an alloy containing these metals as a main component, or stainless steel, and the metal foil. Utility model registration claim No. 1, which is a laminated film with a reinforcing plastic film provided on the opposite side of the conductive adhesive layer side.
Adhesive electrode plate with a terminal part as described in . (4) Utility model registration claim No. 3 in which the flexible conductive substrate is a plastic film, paper, woven fabric, or non-woven fabric coated with metal vapor deposition or electroless plating, or a plastic film, paper, woven fabric, or non-woven fabric laminated with metal foil. Adhesive electrode plate with a terminal part as described in . (5) The adhesive electrode plate with a terminal portion according to any one of claims 1 to 4 of the utility model registration claim, wherein the shrinkable layer is a heat-shrinkable layer. (6) The heat-shrinkable layer is polyester, polyvinyl chloride, polypropylene, polyethylene, ethylene-vinyl acetate copolymer, polyvinylidene chloride,
The terminal according to claim 5 of the utility model registration claim, which is a sheet, foam, woven fabric, or nonwoven fabric made of polyvinyl formal, polytetrafluoroethylene, acrylic resin, polyurethane, polyamide, polyimide, or a copolymer containing these as main components Adhesive electrode plate with parts. (7) With a terminal portion according to any one of claims 1 to 4 of the utility model registration claim, wherein the shrinkable layer is a radiation-sensitive curing shrinkable layer or a radiation-sensitive three-dimensionally crosslinked shrinkable layer. Adhesive electrode plate. (8) Practical use in which the shrinkable layer is made of at least one member selected from the group consisting of radiation-sensitive shrinkable acrylic resin, polyester, polyurethane, acrylic oligomer, polyester oligomer, polyurethane oligomer, or monomers thereof. An adhesive electrode plate with a terminal portion according to claim 7 of patent registration. (9) The adhesive electrode plate with a terminal portion according to claim 7 or 8 of the utility model registration claim, wherein the irradiation radiation is at least one selected from the group consisting of sunlight, ultraviolet rays, electron beams, and radiation. (10) The terminal portion according to any one of claims 1 to 9 of the utility model registration claim, in which the non-contact area is formed excluding the conductive adhesive layer at a location corresponding to the area. Adhesive electrode plate. (11) Utility model registration claim No. 1 in which the non-contact area is formed by interposing a non-adhesive liner layer between a conductive substrate and a conductive adhesive layer at a location corresponding to the area. The adhesive electrode plate with a terminal portion according to any one of Items 1 to 9.