JPH0341688Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a living body induction waterproof electrode used to derive weak voltage from a living body, and in particular, to an electrocardiograph by connecting with a living body induction waterproof electrode. The present invention relates to a biological induction waterproof electrode in which a lead wire connector for guiding a weak voltage is strongly adhered to the biological induction waterproof electrode so that it does not separate from the biological induction waterproof electrode.

[Conventional technology]

As is well known, bioelectricity generated in a living body is induced by the activities of the heart, brain, muscles, and the like. In particular, with regard to bioelectricity generated in the heart, weak voltages induced on the skin of a living body are recorded using an external electrocardiograph to diagnose 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.

This conventional electrode that is closely attached to the skin is shown in Figure 3.
Referring to FIGS. 4 and 5, FIG. 3 is a perspective view of the living body induction electrode 1, which has a substantially circular adhesive base material 2. This adhesive base material 2 is a donut-shaped woven fabric having an opening 3 cut out in the center, and the back side thereof is designed to be in close contact with the skin surface M of the living body as shown in FIG. It is sticky.

An electrode plate fitting part 4 made of a hard synthetic resin is adhered to the upper surface of the adhesive base material 2 to close the opening 3. A magnetic lead wire coupling portion 5 is provided protruding from the surface side of the electrode plate fitting portion 4 . As shown in FIG. 5, an electrode plate 6 is fixed to the lower surface of the lead wire coupling portion 5, which directly contacts the skin surface M of the living body to derive a weak voltage from the heart.

What is shown in FIG. 4 is a back view of the lead wire connection body 7, in which the weak voltage from the heart derived from the electrode plate 6 is connected to an electrocardiograph (not shown) via the lead wire 10. It is intended to lead to. This lead wire connection body 7 is made of hard resin and has approximately the same size as the biological induction electrode 1, and has a recess 8 formed therein, into which a magnetic electrode coupling portion 9 is fixed. One end of a lead wire 10 is fixed to the electrode coupling portion 9, and the other end of the lead wire 10 is connected to an electrocardiograph (not shown).

To record an electrocardiogram using the biological induction electrode 1 configured as described above, first, the adhesive base material 2 of the biological induction electrode 1 is adhered to the skin surface M of the biological body as shown in FIG. Then, the magnetic electrode coupling part 9 of the lead wire connection body 7 is bonded to the lead wire coupling part 5 of the biological induction electrode 1 to connect the lead wire connection body 7 to the biological induction electrode 1, and the electrode The weak voltage from the heart derived from the plate 6 is recorded on an electrocardiograph (not shown) via the lead wire 10.

By the way, although the patient's electrocardiogram is recorded by keeping the living body induction electrode 1 in close contact with the skin surface M of the patient as described above, the patient may keep the living body induction electrode 1 in close contact with the skin surface M of the patient. Depending on the patient's condition, electrocardiograms may be recorded while the patient is taking a bath, being sprayed with a lot of disinfectant for surgery, or exercising. There has been a problem in that the lead wire connector connected to the living body induction electrode 1 that is in close contact with the living body may shift or fall off, making it impossible to obtain an accurate electrocardiogram.

Therefore, an inductive waterproof electrode for biological use having the following structure has been devised. The structure of this biological induction electrode will be explained with reference to FIGS. 6 and 7. In the figures, reference numeral 11 indicates a biological induction waterproof electrode.

This biological induction waterproof electrode 11 has an adhesive base material 12
This adhesive base material 12 is a donut-shaped base material with a central portion cut out to form an opening 13, and the detailed structure of this adhesive base material 12 will be described later.
A disc-shaped electrode plate fitting part 14 made of hard resin and smaller in diameter than the adhesive base material 12 is adhered to the upper surface side (front side) of the adhesive base material 12 to close the opening 13 . A protruding ring 14a protrudes from the surface of the electrode plate fitting part 14, and a magnetic lead wire coupling part 15 is coupled to the protruding ring ^14a .

An electrode plate 16 shown in FIGS. 7 and 8 is attached to the lower surface of this lead wire coupling portion 15. As shown in FIGS.

Reference numeral 17 denotes an electrode plate cover adhered to the lower surface of the electrode plate 16, which guides the weak voltage induced on the skin surface to the electrode plate 16 when the electrode plate cover 17 is brought into close contact with the skin surface.

By the way, as shown in FIGS. 6 and 7, the adhesive base material 12 has a substantially disc shape, and as shown in FIG. 8, the biological induction waterproof electrode 11 is brought into close contact with the skin surface M of the living body. Therefore, as shown in FIG. 7, the back surface 12b is made sticky. Further, the adhesive base material 12 has a back surface 12b.
Not only the surface 12b is made sticky, but also the surface 12b is made sticky, as shown in FIG. 9, so that the lead wire connector 18 can be bonded as shown in FIG. It is.

This lead wire connection body 18 has a waterproof suction cup 19 as shown in FIG.
is fixedly installed, and the lead wire coupling part 15 formed on the biological induction waterproof electrode 11 is attracted to this electrode coupling part 20 .

Further, a lead wire fixing part 21 is provided protruding from the upper surface side of the waterproof suction cup 19, one end of a lead wire 22 is connected to this lead wire fixing part 21, and the other end of the lead wire 22 is connected to an electrocardiograph (electrocardiograph). It is connected.

To explain how to use the biological induction waterproof electrode 11 having such a configuration, first, as shown in FIG.
The back surface 12b of 2 is brought into close contact with the skin surface M of the living body. The lead wire connecting portion 15 of the biological induction waterproof electrode 11 that is in close contact with the skin surface M of the living body is attached to the electrode connecting portion 20 of the lead wire connecting body 18 as shown in FIG. The connection body 18 is connected to the biological induction waterproof electrode 11.

At the same time, when the inner surface 19a of the waterproof suction cup 19 is brought into contact with the surface 12a of the adhesive base material 12 of the biological induction waterproof electrode 11, the inner surface 19a of the waterproof suction cup 19 adheres to the surface 12a of the adhesive base material 12, which is sticky. death,
As a result, the lead wire connector 18 firmly adheres to the biological induction waterproof electrode 11, firmly adheres to it, and does not come off.

[Problems that the idea aims to solve]

By the way, in this way, the biological induction waterproof electrode 1
1 is brought into close contact with the skin surface M of the body to record an electrocardiogram while bathing or swimming. When the lead wire connector 18 is removed from the biological induction waterproof electrode 11 after recording the electrocardiogram, the adhesive base material 12a is attached to the inner surface 19a of the suction cup 19 of the lead connector 18 as shown in FIG. A broken piece 12a remains.

Since the lead wire connector 18 is used repeatedly, broken pieces 1 attached to the inner surface 19a of the suction cup 19
2a must be removed. Therefore, there was a problem in that it had to be removed by cleaning and dissolving it with lacquer, thinner, etc., which was troublesome.

In addition, it took a considerable amount of time to peel off the broken pieces 12a of the adhesive base material adhering to the inner surface 19a of the suction cup 19 using lacquer, thinner, etc., and school children, students, etc. There were problems such as inconvenience when measuring electrocardiograms of a large number of people swimming in a short period of time.

[Means for solving problems]

Therefore, this invention was devised by focusing on the above-mentioned problems with the conventional methods. The electrode plate fitting part is adhered to the surface side of the base material and closes the opening, and the electrode plate is provided in the electrode plate fitting part. The adhesive base material having an opening with a cutout in the center has adhesiveness on the back surface that directly contacts the skin surface, and the lead wire connector is connected to the biological induction waterproof electrode. For biological use, the surface is made sticky, and a waterproof sheet is adhered to the sticky surface, and the waterproof sheet has enough adhesiveness to be peeled non-destructively from the inner surface of the waterproof suction cup. It is an object of the present invention to provide a means called an induction electrode to solve the above problems.

Hereinafter, how the structure of the present invention is actually implemented will be explained with reference to the drawings, along with its operation. FIG. 1 is a partially cutaway perspective view of the surface side of an inductive waterproof electrode for biological use according to an embodiment of the present invention, and FIG. 2 is a partially cutaway perspective view of the inductive waterproof electrode for biological use shown in FIG.

This biological induction waterproof electrode 30 has an adhesive base material 31
This adhesive base material 31 is a donut-shaped base material with a central portion cut out to form an opening 33, and the detailed structure of this adhesive base material 31 will be described later.
A disc-shaped electrode plate fitting part 34 made of hard resin and smaller in diameter than the adhesive base material 31 is adhered to the upper surface side (front side) of the adhesive base material 31, and closes the opening 33.

A ring 34a protrudes from the surface of this electrode plate fitting portion 34.
is provided protrudingly, and a magnetic lead wire fitting portion 35 is fitted to this protruding ring 14a.

An electrode plate 36 shown in FIG. 2 is adhered to the lower surface of this lead wire fitting portion 35.

Reference numeral 37 denotes an electrode plate cover adhered to the lower surface of the electrode plate 36, which is composed of a hydrogel layer, which is made of gelatin, agar, polyacrylamide, etc., and has considerable adhesiveness and conductivity. It also has When this electrode plate cover 37 is brought into close contact with the skin surface, the weak voltage induced on the skin surface is guided to the electrode plate 36.

If the electrode plate 36 is brought into direct contact with the skin surface, accurate weak voltage measurement will not be possible due to contact resistance on the skin surface. A weak voltage was measured by touching the electrode plate 16 on top of the cream, but it is troublesome and inefficient to apply cream every time such a weak voltage is measured, so the electrode plate 36 is coated with cream. By bonding a hydrogel layer that moves like this, it eliminates the inconvenience of applying cream one by one. As the electrode plate cover 37, a polyurethane foam layer impregnated with jelly may be used instead of the hydrogel layer.

As shown in FIGS. 1 and 2, the adhesive base material 31 has a substantially disk shape and is made of foamed polyethylene resin, closed foam butadiene rubber sheet, nonwoven fabric, and knitted fabric. This adhesive base material 31 has an adhesive back surface 31b as shown in FIG. 2 in order to bring the living body induction waterproof electrode 30 into close contact with the skin surface M of the living body as shown in FIG. This is what is being done. Furthermore, this adhesive base material 31 does not have adhesiveness only on its back surface 31b, but also has adhesiveness on its front surface 31a as shown in FIG. This allows the body 18 to be attached.

A waterproof sheet 32 is provided on the surface 31a of this adhesive base material.
is glued. This waterproof sheet is made of synthetic resin.
This waterproof sheet 3 is made of rubber, woven fabric, or knitted fabric.
2 also has adhesive properties. This adhesiveness is such that it can be easily peeled off from the inner surface 19a of the waterproof suction cup 19 in a non-destructive manner by applying external pressure from a finger or the like.

Then, as shown in FIG. 9, the living body induction waterproof electrode 32 provided with this waterproof sheet 32 is brought into close contact with the skin surface M of the living body, and the lead wire connector 18 is connected thereto. In this case, the sheet 3 of the biological induction waterproof electrode 30
The inner surface 19a of the waterproof suction cup 19 of the lead wire connection body 18 is brought into close contact with the top of the lead wire connection body 18. Then, the electrocardiogram recording is completed and the lead wire connection body 1 is closed as shown in FIG.
8 is removed from the biological waterproof electrode, the lead wire connection body 18 is easily removed from the biological waterproof electrode due to the interposition of the sheet 32, and the broken pieces of the adhesive base material 31 are removed from the waterproof suction cup 19 of the lead wire connection body 18. inner surface 1
It does not adhere to 9a.

[Effects of this invention]

As explained above, in the present invention, a waterproof sheet is adhered to the front side of the adhesive base material, so when the lead wire connector is removed from the biological induction waterproof electrode, broken pieces of the adhesive base material will adhere to the lead wire connector. As a result, there is no need to clean the waterproof suction cup of the lead wire connection body with lacquer, thinner, etc., and the efficiency of electrocardiogram measurement work is improved.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway perspective view of the surface side of an inductive waterproof electrode for biological use according to an embodiment of the present invention, and FIG.
Back view of Figure 2, Figure 3, Figure 4, Figure 5, Figure 6
FIG. 7, FIG. 8, FIG. 9, and FIG. 10 are explanatory diagrams of conventional induction waterproof electrodes for living organisms. 30... Biological induction waterproof electrode, 31... Adhesive base material, 31a... Surface of adhesive base material, 31b... Back side of adhesive base material, 32... Waterproof sheet.

Claims (1)

[Claims for Utility Model Registration] (1) An adhesive base material that is in close contact with the skin surface of a living body and has an opening with a cutout in the center, and an adhesive base material that is adhered to the surface side of the adhesive base material to close the opening. An inductive waterproof electrode for a living body that is in close contact with the skin surface of a living body and derives a weak voltage from within the living body, comprising an electrode plate fitting part and an electrode plate provided in the electrode plate fitting part, The adhesive base material having an opening with a cutout in the center has a back side that is in direct contact with the skin surface, and a surface to which the lead wire connection body is connected, has an adhesive property, and the adhesive base material has an opening with a cutout in the center. An inductive electrode for biological use, characterized in that a waterproof sheet is adhered to the surface of the waterproof suction cup, and the waterproof sheet has adhesiveness to the extent that it can be peeled off non-destructively from the inner surface of the waterproof suction cup. (2) The inductive waterproof electrode for living organisms according to claim 1, wherein the waterproof sheet adhered to the surface of the adhesive base material is made of synthetic resin. (3) The waterproof sheet adhered to the surface of the adhesive base material is made of rubber.
An inductive waterproof electrode for biological use according to claim 1 of the utility model registration claim. (4) The waterproof sheet adhered to the surface of the adhesive base material is formed of a woven fabric.
An inductive waterproof electrode for biological use according to claim 1 of the utility model registration claim. (5) The waterproof sheet adhered to the surface of the adhesive base material is formed of a woven fabric.
An inductive waterproof electrode for biological use according to claim 1 of the utility model registration claim. (6) The inductive waterproof electrode for living organisms according to claim 1, wherein the waterproof sheet adhered to the surface of the adhesive base material is made of a nonwoven fabric.