JPH0533124Y2 - - 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 connectors used for electrical connection, etc., there have been proposed connectors in which a clip, hook, or connection terminal for inserting a bottle is attached to an adhesive electrode terminal part.

(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 plate body and a connecting terminal such as a clip attached to the edge of the body. When the connection terminal is erected and connected to the terminal of a medical/diagnostic device, the adhesive electrode plate that adheres to the skin is pulled up and peeled off at the connection terminal, resulting in the connection being interrupted. A cleavage force acts between the terminal point and the skin surface, creating stress, and since the connection terminal point is peeled off in this way, the electrode plate becomes insufficiently bonded and the stability of the electrical signal is lost. This phenomenon poses a problem that cannot be ignored when the 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 inventors of the present invention have developed a double fold between the flexible reinforcing substrate and the flexible conductive adhesive layer. A flexible conductive substrate made of the above is interposed, one piece of the folded piece is adhered to the conductive adhesive layer, and the other piece of the folded piece is brought into contact with the reinforcing substrate, at a location corresponding to the conductive substrate. In this case, if a cut is made in the reinforcing substrate and the cut part is used as a connection terminal part, and if necessary, the connection terminal part is made to protrude and is connected to a terminal of a medical/diagnostic device, the connection can be made extremely easily. In addition, the present invention was completed based on the knowledge that it has good adhesion to the patient, is easy to wear, is easy to manufacture, and has low manufacturing costs.

That is, the adhesive electrode plate with a terminal portion of the present invention is an adhesive electrode plate in which a flexible reinforcing substrate and a flexible conductive adhesive layer are laminated, and between the reinforcing substrate and the conductive adhesive layer. A double-folded flexible conductive substrate is interposed between the double-folded flexible conductive substrate, one piece of the folded piece is adhered to the conductive adhesive layer, and the other piece of the folded piece is brought into contact with the reinforcing substrate. A cut is provided in the reinforcing substrate at a location corresponding to the flexible substrate, and the cut is used as a connecting terminal portion, and the connecting terminal portion is configured to protrude outward at the cut. It is something.

The present invention will be explained in detail below.

The reinforcing substrate used in the present invention may be either a conductive reinforcing substrate or a non-conductive reinforcing substrate as long as it has flexibility.

In the present invention, a non-conductive reinforcing substrate is particularly preferred because it is easy to manufacture, has low material cost, and is economical and easy to handle.

As the conductive reinforcing substrate, those used for the conductive substrate described below are preferably employed.

Examples of the non-conductive reinforcing substrate include paper, plastic sheets/films, woven fabric, non-woven fabric, and porous sheets/films.

Examples of such plastic sheets/films include polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate, ethylene-vinyl acetate copolymers,
A sheet or film made of at least one synthetic resin such as polyvinyl chloride, polyvinylidene chloride, polyvinyl formal, polytetrafluoroethylene, acrylic resin, polyurethane, polyamide, or polyimide, or a composite made of these. Examples include sheets.

Further, in the present invention, the non-conductive reinforcing substrate may be a shrinkable reinforcing substrate.

The shrinkable reinforcing substrate shrinks in a uniaxial direction in response to heat or irradiation, thereby
There is no particular limitation as long as the connecting terminal portion, which will be described later, protrudes outward.

Examples of the heat-shrinkable reinforcing substrate include polybutadiene, polyisoprene, chloroprene, polyester, polyvinyl chloride, polypropylene, polyethylene, ethylene-vinyl acetate copolymer, polyvinylidene chloride, polyvinyl formal, polytetrafluoroethylene, and acrylic resin. Examples include sheets (films), foams, nonwoven fabrics, and woven fabrics made of polyurethane, polyamide, polyimide, or copolymers containing these as main components.

In addition, the shrinkable reinforcing substrate that cures or three-dimensionally crosslinks in response to the irradiation and shrinks thereby may be acrylic resin, polyester, polyurethane, acrylic oligomer, polyester oligomer, polyurethane oligomer, or a single material thereof. Examples include those formed of at least one member selected from the group consisting of mercury.

As the above-mentioned shrinkable reinforcing substrate, one that shrinks due to heat is the easiest to handle and is preferred from a practical standpoint.

Examples of the heat source include a hot air source such as a dryer, a heating iron, and an infrared heater.

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

However, in the present invention, an adhesive layer may be provided on the back surface of the reinforcing substrate, or a hot melt adhesive layer may be laminated on the back surface of the reinforcing substrate.

The flexible conductive adhesive layer used in the present invention adheres and fixes the electrode plate to the adherend, and transmits the electrical signals received from the adherend to which the electrode plate is adhered to the medical and medical fields through the conductive substrate. It is for sending to a connected object (device) such as a diagnostic device.

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 an adhesive substance such as a synthetic polymeric material such as a homopolymer or copolymer of polyacrylic acid ester derivatives, polyvinyl alcohol, or other hydrophilic polymers.

The most significant feature of the present invention is that a double-folded flexible conductive substrate is interposed between the reinforcing substrate and the conductive adhesive layer, and one side of the folded back is used as the conductive adhesive layer. bonded and the other folded piece is brought into contact with the reinforcing substrate, a cut is made in the reinforcing substrate at a location corresponding to the conductive substrate, the cut portion is used as a connecting terminal portion, and the connecting terminal portion is bonded. is configured to protrude outward at the cut.

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

Specific examples of such flexible conductive substrates include 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 sheet with a synthetic resin film sheet provided on one side.

A plastic film on which a flexible conductive substrate is laminated with metal vapor deposition, electroless plating, or metal foil;
It is made of paper, woven or non-woven fabric.

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

It is made of a sheet made of a mixture of carbon black and rubber.

It is made of non-woven fabric mixed with metal.

It is made of a nonwoven fabric made of carbon fiber or a sheet containing carbon fiber.

It is made of a net woven from metal fibers.

By the way, when using a conductive substrate made of the above laminated film sheet, when folding it double, fold the laminated film sheet so that the metal foil is on the outside, As a result, in the metal foil, it is necessary to adhere one folded piece to the conductive adhesive layer and to bring the other folded piece into contact with the conductive reinforcing substrate. By doing so, it can be used as a connector to reliably transmit electrical signals from the adherend to medical/diagnostic equipment, remove static electricity from the surface of the adherend, and make electrical connections with the adherend. It is.

In this case, when using a reinforcing substrate with an adhesive layer on the back side or a hot melt adhesive layer on the back side of the reinforcing substrate, the other folded piece of the conductive substrate is glued to the reinforcing substrate. Alternatively, a hot melt adhesive layer may be laminated on the back side of the reinforcing substrate, and this may be bonded to the other folded piece of the conductive substrate by heating and pressing.

In the present invention, cuts are provided in the reinforcing substrate in its thickness direction at locations corresponding to the conductive substrate interposed between the reinforcing substrate and the conductive adhesive layer. The cut portion is used as a connection terminal portion, and the connection terminal portion is configured to protrude outward at the cut portion.Therefore, the intervening portion of this conductive substrate is not particularly limited. However, it has enough strength to withstand the tension of the connection cord at the connection terminal part, and from the viewpoint of electrode stability, it is provided in the center or across the entire width of the left and right center, and the connection terminal is placed in the center. It is preferable to provide one.

In the present invention, the cut is formed by cutting the reinforcing substrate and the conductive substrate in the thickness direction thereof.

In other words, when creating cuts in the reinforcing substrate,
If cuts are made in the thickness direction at the three circumferential edges of the open end of the conductive substrate formed by double folding, it is not necessary to make cuts in the conductive substrate, but it is not necessary to make cuts in the conductive substrate at the center of the conductive substrate. When creating a cut at a location, it is necessary to make a cut in both the reinforcing substrate and the conductive substrate, especially in the other piece of the reinforcing substrate and the conductive substrate that is folded double. This configuration is desirable because a connecting terminal portion having a desired shape can be formed.

In addition, in the present invention, the cut formed in the reinforcing substrate can be made to naturally protrude outward due to the elastic restoring force of the double-folded conductive substrate during use. Alternatively, it can be easily protruded outward using tweezers or the like, and the protruding portion can be used as a connection terminal to connect to a terminal or terminal of an object to be connected, such as a medical or diagnostic device. The form is not particularly limited as long as the cut portion, that is, the connection terminal portion can be easily rolled up and protruded outward.

Specifically, for example, the cut may be shaped like a U-shape or a V-shape.
The connection terminal portion may be formed by forming an arbitrary shape such as a letter shape or a U-shape, or by forming a cut into a hook shape. Furthermore, instead of these, two parallel cuts may be formed at an appropriate distance from each other from the edge of the reinforcing substrate.

By the way, in the present invention, as mentioned above, a shrinkable reinforcing substrate can be used, and by providing a cut in this reinforcing substrate, when providing a connecting terminal portion, The direction of the straight line connecting the base ends of the cuts is formed at an angle of 0 to 60 degrees with respect to the contraction direction of the shrinkable reinforcing substrate, and the connecting terminal portion is rolled up due to contraction of the reinforcing substrate. Preferably, it is configured to protrude outward.

That is, in the present invention, the conductive substrate is folded in half, and the other half of the folded piece is rolled up at the cut point of the reinforcing substrate, and this cut point, that is, the connection terminal part, is reinforced by the conductive substrate. Therefore, when or after attaching a terminal of a medical/diagnostic device to the connection terminal, there is no risk of the connection terminal tearing or breaking even if the weight of the terminal (clip, etc.) or any other load is applied. However, if the strength of the reinforcing substrate and conductive substrate is low, there is a risk that the connecting terminal part will tear and break. The reinforcing board has a high degree of shrinkage and easily rolls up, but if any load is applied to the cut point, that is, the connection terminal part, the connection terminal part may tear and break.In order to compensate for this drawback, When forming the connecting terminal part, it is desirable to form it so that the direction of the straight line connecting the base ends of the cuts in the connecting terminal part has an angle of 0 to 60 degrees with respect to the shrinking direction of the shrinkable reinforcing substrate. It is.

By the way, there is no restriction on the formation direction of the connecting terminal portion as long as the strength of the cut point in the shrinkable reinforcing substrate, that is, the connecting terminal portion is sufficiently strong, but if the cut point is provided as described above, This is preferable because it does not break even if an unexpectedly large tearing force is applied during handling such as connection to a terminal of a connected object (device), making it easier to handle.

In the present invention, forming the connecting terminal so that the direction of the straight line connecting the base ends of the cuts in the connecting terminal has an angle of 0 to 60 degrees with respect to the shrinking direction of the shrinkable reinforcing substrate means that the connecting terminal is This is intended to exclude cases where the reinforcing substrate is provided along the direction of contraction of the reinforcing substrate.

In other words, shrinkable reinforcing substrates tend to tear along the direction of contraction, and if connecting terminals are formed along this direction, accidents such as breakage may occur during handling, which poses a practical problem. Sometimes.

Therefore, the structure is such that the direction of the straight line connecting the base ends of the cuts in the connection terminal portion has an angle of 0 to 60 degrees with respect to the direction of shrinkage of the shrinkable reinforcing substrate.

If this angle exceeds 60 degrees, the strength of the connecting terminal portion will be insufficient, and as a result, it may tear or break during handling, which is not preferable.

By the way, when the shrinkable reinforcing substrate is formed by biaxial stretching, the shrinkage direction refers to the direction in which the shrinkage rate is high.

In this case, the direction of the straight line connecting the base ends of the cuts is 0 degrees with respect to the contraction direction.
In other words, the contraction direction and the straight line connecting the base end of the cut are parallel to each other.

(e) Effect The present invention has the above-mentioned structure, and is formed by folding a flexible conductive substrate into double folds, and since the folded pieces are not adhered to each other at all, the reinforcing substrate and the reinforcing substrate are brought into contact with each other. When a cut is made in the other half of the double-folded conductive substrate, the cut may naturally roll up and protrude outward due to the elastic restoring force of the conductive substrate, or the cut may be removed with tweezers. By pinching the terminal with a handle, the connecting terminal can be easily rolled up and protruded outward.

In this case, since the reinforcing substrate and the conductive substrate mutually reinforce each other, even if a shrinkable reinforcing substrate is used as the reinforcing substrate, the connection terminal portion is prevented from breaking during use as much as possible. It has.

The protruding part of the connection terminal part can be electrically connected to the terminal (alligator clip, etc.) or terminal of the connected device, etc., and the connection can be made extremely easily, and it can be folded double. One of the folded pieces of the conductive substrate is bonded to the conductive adhesive layer, and the other folded piece is in contact with the reinforcing substrate, so that the conductive adhesive layer is separated from the adherend. It has the function of reliably transmitting received electrical signals to medical/diagnostic equipment via the conductive substrate.

In addition, the force applied to the adhesive electrode plate during this connection is absorbed by the connection terminal part being rolled up further, so no peeling force is applied to the adhesive electrode plate itself, and as a result, the adhesive It has the effect of not causing stress on the skin surface.

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

1 to 8, reference numeral 1 denotes an adhesive electrode plate with a terminal portion having a substantially rectangular shape in plan view, and the adhesive electrode plate 1 includes a flexible reinforcing substrate 2 and a flexible conductive adhesive layer 3. are laminated, and a flexible conductive substrate 4 made of double fold is interposed between the reinforcing substrate 2 and the conductive adhesive layer 2, and one piece 4a of the folded back is the conductive adhesive layer. The reinforcing substrate 2 is bonded and the other folded piece 4b is brought into contact with the reinforcing substrate 2.

5 is a cut, and the cut 5 is provided in the reinforcing substrate 2 and the other piece 4b of the conductive substrate 4 that contacts this at a location corresponding to the conductive substrate 4, and the five cuts are connected. As the terminal part 6,
The connecting terminal portion 6 is configured to protrude outward at the cut 5.

In this case, the reinforcing substrate 2 is made of a nonwoven fabric with a thickness of several hundred μm, and the conductive substrate 4 is made of copper foil with a thickness of 100 μm.
Further, the conductive adhesive layer 3 is made of an acrylic adhesive mixed with silver powder.

When the conductive substrate 4 is folded double in this way and inserted between the reinforcing substrate 2 and the conductive adhesive layer 3 in a compressed state, the repulsive force creates five cuts, which will be described later, at the connection terminal area. This makes it easier to roll up the connecting terminal portion 6, or the connecting terminal portion 6 can be easily rolled up using tweezers or the like.

In this case, an adhesive layer is provided on the back surface of the reinforcing substrate 2 and the other folded piece 4b of the conductive substrate 4 is glued to the reinforcing substrate 2, or a hot melt adhesive layer is laminated on the back surface of the reinforcing substrate 2. However, this may be bonded to the other folded piece 4b of the conductive substrate 4 by applying heat and pressure.

The connection terminal section 6 will be explained in more detail below.

As shown in FIGS. 1 to 4, the connection terminal portion 6 is attached to the reinforcing substrate 2 at a location corresponding to the conductive substrate 4 interposed between the reinforcing substrate 2 and the conductive adhesive layer 3. and conductive substrate 4 may be cut into a U-shape in the thickness direction, or alternatively, as shown in FIG. 5, reinforcing substrate 2 and conductive adhesive layer 3 may be At locations corresponding to the conductive substrates 4 interposed between them, the reinforcing substrates 2 are spaced appropriately from their edges, and the reinforcing substrates 2 are
It may be formed by cutting parallel to the main plate and providing cuts 5, and as shown in FIGS. 6 and 7, reinforcing Alternatively, the substrate 2 and the conductive substrate 4 may be cut into a substantially U-shape in the thickness direction so that the tip of the cut 5 reaches the folded open end of the conductive substrate 4. As shown in FIG. 8, a conductive substrate 4 with a U-shaped cut 5 interposed between the reinforcing substrate 2 and the conductive adhesive layer 3 is formed.
In this case, the reinforcing substrate 2 may be cut in its thickness direction to provide a cut 5, and the base end of the cut 5 may be located at the open end of the conductive substrate 4.

Next, a manufacturing example of the adhesive electrode plate with terminal portions of the present invention will be explained based on FIGS. 9a to 9d.

That is, the flexible reinforcing substrate 2 shown in FIG. 9a and the flexible conductive adhesive layer 3 shown in FIG. 9c are laminated, and between the reinforcing substrate 2 and the conductive adhesive layer 3, One piece 4 of the double-folded flexible conductive substrate 4 is interposed therebetween as shown in FIG. 9b.
A is adhered to the conductive adhesive layer, and the other folded piece 4b is brought into contact with the reinforcing substrate 2.

Next, cuts 5 are provided in the reinforcing substrate 2 at locations corresponding to the conductive substrate 4, whereby the five cuts are used as connection terminal portions 6;
The connecting terminal portion 6 is constructed so as to protrude outward at the cut 5 [FIG. 9d].

In this case, an adhesive layer is provided on the back surface of the reinforcing substrate 2 and the other folded piece 4b of the conductive substrate 4 is glued to the reinforcing substrate 2, or a hot melt adhesive layer is laminated on the back surface of the reinforcing substrate 2. However, this may be bonded to the other folded piece 4b of the conductive substrate 4 by applying heat and pressure.

As the conductive substrate 4, another metal foil, a metal seal, or a laminated sheet of metal and synthetic resin film (sheet) may be used instead of the above-mentioned one. In this case, the conductive substrate 4 may be When forming it into a folded shape, it is necessary to make the metal foil side the outer side and to use a conductive material as the reinforcing substrate 2.

In the above embodiments, that is, the examples shown in FIGS. 1 to 8, the conductive substrate 4 has vertical and horizontal dimensions smaller than those of the reinforcing substrate 2 and the conductive adhesive layer 3. However, instead of this, as shown in FIGS. 10 and 11, a conductive substrate 4
In other words, the horizontal size of the conductive substrate 4 and the horizontal size of the reinforcing substrate 2 and the conductive adhesive layer 3 were formed to be the same. Alternatively, as shown in FIGS. 12 and 13, only the lateral size of the conductive substrate 4 is made smaller than that of the reinforcing substrate 2.
In other words, it is possible to use a structure in which the vertical size of the conductive substrate 4 is the same as that of the reinforcing substrate 2 and the conductive adhesive layer 3.

In this case, the shape of the cut 5 and the method of forming it may be the same as in the above embodiment.

With this configuration, the elongated reinforcing substrate 2
and an elongated conductive adhesive layer 3, a flexible conductive substrate 4 which is elongated and double-folded.
The long laminate may be cut at appropriate intervals in the direction perpendicular to the longitudinal direction or along the longitudinal direction while continuously interposing the terminal parts. Since the adhesive electrode plate can be easily manufactured, productivity is significantly improved and it is extremely economical.

Of course, even in this case, manufacturing may be carried out in the same direction as shown in FIGS. 9a to 9d.

(g) Effects of the invention The conductive electrode plate with a terminal part of the present invention has the above-mentioned structure, and the connecting terminal part can be made to protrude outward very easily, and when this is applied to an adherend, This has the effect that the connection terminal portion can be reliably and easily connected to medical/diagnostic equipment, etc.

In addition, the present invention involves folding a flexible conductive substrate into double folds, bonding one folded piece to a conductive adhesive, and bringing the other folded piece into contact with a reinforcing substrate. If necessary, cuts are made in both the reinforcing board and the conductive board to allow the connection terminals to protrude.The structure is simple, and the number of parts is small because there are no terminals such as clips, hooks, or pins. In addition, since there is no need to attach these terminals, the number of manufacturing steps is small and manufacturing is easy, and continuous production is possible and mass production is excellent.In the end, the combination of these two results in a significant reduction in manufacturing costs. be.

In addition, the adhesive electrode plate with terminals of the present invention has
Since it does not have terminals such as clips, hooks, pins, etc., it is not bulky and has the advantage of being inexpensive to package, transport, and stock.

When the connectable electrode plate with a terminal part of the present invention is used as a medical electrode, after adhering the electrode plate to the skin, the connecting terminal part is protruded and the terminal part is connected to a terminal of a medical/diagnostic device. When applying the adhesive, the connecting terminal part will be rolled up appropriately and no peeling force will be applied to the skin surface.As a result, the adhesive surface will not feel stress and can be used in a stable state for a long time. be.

[Brief explanation of the drawing]

1 to 8 are plan views showing other different embodiments, FIGS. 9 a to d are process diagrams showing manufacturing examples thereof, and FIG. 10 is a perspective view showing another embodiment.
1 is a cross-sectional view taken along the - line, FIG. 12 is a plan view showing still another embodiment, and FIG. 13 is a cross-sectional view taken along the - line. DESCRIPTION OF SYMBOLS 1... Adhesive electrode plate with terminal portion, 2... Reinforcing substrate, 3... Conductive adhesive layer, 4... Conductive substrate, 5... Cut, 6... Connection terminal portion.

Claims (1)

[Scope of utility model registration request] It is an adhesive electrode plate in which a flexible reinforcing substrate and a flexible conductive adhesive layer are laminated, and a double-folded flexible conductive substrate is placed between the reinforcing substrate and the conductive adhesive layer. One piece of the folded piece is glued to the conductive adhesive layer through interposition, and the other piece of the folded piece is brought into contact with the reinforcing substrate, and a cut is made in the reinforcing substrate at a location corresponding to the conductive substrate. An adhesive electrode plate with a terminal portion, characterized in that the cut portion is formed as a connecting terminal portion, and the connecting terminal portion is configured to protrude outward at the cut portion.