JPH032251Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to an inductive electrode for a living body, specifically, an inductive electrode for a living body that is fixed to the skin surface of a living body to derive a weak current generated in the living body. It is something.

[Conventional technology]

As is well known, bioelectricity generated in a living body is induced by the activities of the heart, brain, muscles, etc.

In particular, bioelectricity generated in the heart is measured by recording the weak voltage induced on the skin of the living body using an external electrocardiograph.
Diagnosing heart abnormalities. In this electrocardiograph, in order to electrically connect the input section to the living body, the living body's induction electrode must be brought into close contact with the surface of the living body's skin.

The conventional electrodes that are closely attached to the surface of the skin are explained according to FIGS. 3, 4, and 5.
The figure is a perspective view of the biological induction electrode 1, which has a substantially circular adhesive base material 16.

This adhesive base material 16 has an opening 1 cut out in the center.
A donut-shaped woven fabric in which 7 is formed,
As shown in FIG. 5, the back side is sticky in order to adhere closely to the skin surface M of the living body.

An electrode plate fitting part 18 made of hard synthetic resin is adhered to the upper surface of the adhesive base material 16 to close the opening 17. A magnetic lead wire coupling portion 19 is provided protruding from the surface side of this electrode plate fitting portion.

As shown in FIG. 7, an electrode plate 20 is fixed to the lower surface of the lead wire coupling portion 19, which directly contacts the skin surface M of the living body and derives a weak voltage from the heart.

What is shown in FIG. 4 is the lead wire connection body 21.
This is a back view for guiding the weak voltage from the heart derived from the electrode plate 20 to an electrocardiograph (not shown) via the lead wire 4. This lead wire connector 21 is made of hard resin and has approximately the same size as the biological induction electrode 1, and has a recess 22 inside.
A magnetic electrode coupling portion 23 is formed in the recess 22.
is fixed, one end of a lead wire 4 is connected to this electrode coupling portion 23, and the other end of the lead wire 4 is connected to an electrocardiograph (not shown).

To record an electrocardiogram using the living body induction electrode 1 configured as described above, first apply cream to the skin surface M of the living body to reduce electrical resistance, and then apply the cream to the living body's skin surface M as shown in FIG. The adhesive base material 16 of the biological induction electrode 1 is adhered thereon, and then the magnetic electrode coupling part 23 of the lead wire connection body 21 is adhered to the lead wire coupling part 19 of the biological induction electrode 1 to connect the lead wire. The body 21 is connected to the biological induction electrode 1, and the weak voltage from the heart derived from the electrode plate 20 is recorded on an electrocardiograph (not shown) via the lead wire 4.

[Problem that the invention attempts to solve]

However, the conventional example above uses magnets on both the lead wire side and the electrode side, which makes it heavy.
The structure supporting the magnet is also complicated and large, and it feels hard, making it undesirable as an instrument to be attached to the skin of a living body, and the manufacturing cost is also high.

The present invention replaces such conventional biological induction electrodes with
The purpose is to solve the problems of being heavy, having a complicated structure, feeling hard, and being expensive to manufacture.

[Means for solving problems]

In order to achieve the above object, the present invention provides the following biological induction electrode. In other words, the present invention is
A silver vapor deposited layer is formed on one surface of a resin film, a conductive adhesive is applied to the surface of the silver vapor deposited layer, and a foam sheet is adhered to the other surface of the resin film. A substantially circular induction electrode for living organisms, which has approximately parallel four sides with one short side being a bendable non-cut portion and the other three sides being cut portions at approximately the center thereof. This terminal is an inductive electrode for biological use, which has a terminal having a substantially parallelogram-shaped notch, and the long side notch ends of the notch are each curved outward. be.

[Function] When the conductive adhesive coated surface of the living body induction electrode of the present invention is applied to the skin surface of the living body, the living body induction electrode is adhesively fixed to the skin surface, and weak bioelectricity in the living body such as the heart is absorbed. It flows from the skin surface through the conductive adhesive to the silver deposited layer with low resistance.

If the short side portion of the non-cut portion of a substantially parallelogram formed at the center of the biological induction electrode is bent and raised, a substantially parallelogram terminal is formed, which makes it easier to pinch.

When this is held between clips or the like, the bioelectricity flows from the silver deposited layer of the terminal, which is a part of the biological induction electrode, to the clip, and from the clip to the electrocardiograph (not shown) through the lead wire.

〔Example〕

Regarding embodiments of the present invention, how the configuration of the present invention is actually embodied will be described below with reference to the drawings, together with its operation.

FIG. 1 is a schematic explanatory diagram of an embodiment of the present invention, in which a living body induction electrode 1 of the present invention is adhered to the skin surface M of a living body, and a terminal 2 of the living body induction electrode 1 is attached to a clip 3.
This shows that the clip 3 is connected to an external electrocardiograph (not shown) using a lead wire 4.

FIG. 2 is a perspective view of the living body induction electrode 1, and 1a in the figure is the main body of the living body induction electrode 1, which is formed in a substantially circular shape. This main body 1a has a silver vapor deposited layer 7 formed on one side of a polyester resin film 6, and a conductive adhesive 8 is further applied to the surface of the silver vapor deposited layer 7.

The surface to which the conductive adhesive 8 is applied is the surface on which the biological induction electrode 1 is adhered to the skin surface of the living body with low resistance. Furthermore, a butadiene-based closed foam sheet 9 is adhered to the other surface of the resin film 6 with an adhesive or the like.

Approximately in the center of the main body 1a, there is a non-cut portion 10 on which one of the short sides can be bent, and a cut portion 11 on the other short side.
A substantially parallelogram-like terminal 14, which is close to a rhombus, is formed by the notches 12 and 13 on the long sides.

Furthermore, the non-cut portion 10 which is the base end of this terminal 14
The cut ends 12a, 13a of the long sides 12, 13 are curved outward at both ends of the terminal 14, and the terminal 14 is strengthened by widening the width near the non-cut part 10 of the terminal 14. It is something that exists.

[Effect of idea]

As described above, the present invention forms a silver vapor deposition layer on one side of a resin film, coats a conductive adhesive on the surface of this silver vapor deposition layer, and coats the other surface of the resin film with a conductive adhesive. The biological induction electrode has a simple structure in which a foam sheet is pasted to form the main body, and a notch is provided in the center of the main body to form a terminal, making it suitable for mass production and significantly reducing manufacturing costs. As a result, each person can use a new one to maintain cleanliness.

In addition, the cut end of the long side of the parallelogram cut part is
Since each of the terminals is curved outward, that is, by widening the width near the non-cut portion of the terminal, the weak terminal 4 is strengthened.

Furthermore, since the entire structure is flexible, it is easy to use and adapts well to the skin surface of the living body.

Furthermore, since the present invention is coated with a conductive adhesive, there is no need to apply cream to the skin surface of the living body during use, so it is highly workable.

In addition, in terms of strength, it is made of a double layer of resin film and foam sheet, which reinforces each other, making it extremely tough.The terminal is located approximately in the center of the main body, so it can be easily removed from the main body. It has the advantage of being difficult to peel off and being easy to clip.

[Brief explanation of the drawing]

FIG. 1 is a schematic explanatory diagram of an embodiment of the present invention, and FIG. 2 is a perspective view of an embodiment of the biological induction electrode of the present invention.
FIG. 3 is a perspective view of a conventional biological induction electrode, FIG. 4 is a back view of a conventional lead wire connection body, and FIG. 5 is a diagram showing the state in which the conventional biological induction electrode is used. 6...Resin film, 7...Silver vapor deposition layer, 8...
... Conductive adhesive, 9... Foam sheet, 10... Non-cut portion, 11-13... Cut portion, 14... Terminal.

Claims (1)

[Scope of utility model registration request] A silver vapor deposited layer is formed on one surface of a resin film, a conductive adhesive is applied to the surface of the silver vapor deposited layer, and a foam sheet is adhered to the other surface of the resin film. A substantially circular induction electrode for living organisms, which has approximately parallel four sides with one short side being a bendable non-cut portion and the other three sides being cut portions at approximately the center thereof. What is claimed is: 1. A biological induction electrode having a terminal having a substantially parallelogram-shaped notch, the long side notch ends of which are each curved outward.