JPH0558102U - Adsorption electrode - Google Patents

Abstract

(57) [Abstract] [Purpose] When an adsorption electrode having a cup formed of a conductive rubber is detached from a living body, the cup is rapidly returned to its original shape. [Structure] A cup 1 is formed of two layers of a conductive rubber 2 and an elastic rubber 3 to maintain conductivity without impairing rubber elasticity.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to an adsorption electrode that is connected to an electrocardiograph or the like and is adsorbed on the surface of a living body to detect a biological signal.

[0002]

[Prior Art]

 An adsorption electrode that is adsorbed on the chest of a living body and connected to an electrocardiograph to record an electrocardiogram has conventionally consisted of a rubber ball and a cup formed of a metal hemisphere. Then, the cup is attached to the living body by mounting the cup on the surface of the living body in a state where the rubber ball communicating with the cup is compressed and releasing the compression of the rubber ball to make the inside of the cup a negative pressure. I was doing.

However, since the skin of the living body has anisotropy and there are individual differences, there is a problem that the cup falls off during the inspection. As an adsorption electrode for solving this problem, there is one proposed by the present applicant in Japanese Patent Application No. 3-6479. In this adsorption electrode, a cup is formed of a flexible conductive rubber into a hemispherical shape, and the cup is freely deformed according to the anisotropy of the skin of the living body, so that the adhesion can be improved.

[0004]

[Problems to be solved by the device]

 However, in the adsorption electrode configured as described above, since the cup is made of conductive rubber having a low elasticity, it takes time for the cup to be restored to its original shape when the cup that is adsorbed by the living body and deformed is removed from the living body. There was a problem that it required.

The present invention has been made in view of the above points, and provides an adsorption electrode that has a cup made of conductive rubber and that rapidly returns to its original shape when the cup is detached from a living body. The purpose is to

[0006]

Means for Solving the Problems In order to achieve the above object, the present invention provides an adsorption having a substantially hollow hemispherical cup that communicates with the inside of a rubber ball and is adsorbed to the surface of a living body to detect a biological signal. In the electrode, the cup is formed of two layers of conductive rubber and elastic rubber.

[0007]

[Action]

 According to the adsorption electrode configured as described above, since the cup is formed of the two layers of the conductive rubber and the elastic rubber, the conductivity can be maintained without damaging the elasticity, and the adsorption electrode can be formed. The cup can be rapidly returned to its original shape when it is detached from the living body.

[0008]

【Example】

 An embodiment of the adsorption electrode of the present invention will be described below with reference to the drawings.

FIG. 1 shows the configuration of an embodiment of the present invention. In FIG. 1, a cup 1 is integrally formed into a hollow hyper-hemisphere with two layers of a flexible conductive rubber 2 and an elastic rubber 3. At the center of the portion of the cup 1 opposite to the opening portion 4, a mounting portion 5 is provided so as to open and communicate with the inside. A terminal 7 is inserted into the mounting portion 5 from the inside of the cup 1, and an opening 8 of a rubber ball 6 is airtightly joined to the terminal 7. A metal fitting 9 which is led to an external electrocardiograph (not shown) is coupled to the terminal 7.

According to this embodiment, since the cup 1 is formed of two layers of the conductive rubber 2 and the elastic rubber 3 which are flexible, the cup 1 is mounted on the surface of the living body and the rubber ball 6 is used. When adsorbed under negative pressure, it is possible to improve the adhesiveness according to the anisotropy of the skin. However, since the elastic rubber 3 increases the restoring force, when the cup 1 is detached from the surface of the living body, the cup 1 rapidly returns to its original shape. For example, in the case of the conventional cup formed of only the conductive rubber 2, it takes 30 seconds to 1 minute to restore, but the suction electrode according to the present embodiment restores the original shape in a few seconds.

In the above embodiment, the case where the cup 1 has a hyper-hemispherical shape has been described, but the shape of the cup 1 is not limited to the hyper-hemispherical shape, and may be, for example, a hemispherical shape.

[0012]

[Effect of the device]

 As described above, according to the adsorption electrode of the present invention, since the cup is formed of the two layers of the conductive rubber and the elastic rubber, it is possible to maintain the conductivity without impairing the elasticity of the cup. When the cup is removed from the living body, the cup can be rapidly returned to its original shape.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing the configuration of an embodiment of an adsorption electrode of the present invention.

[Explanation of symbols]

 1 cup 2 conductive rubber 3 elastic rubber 6 rubber ball

Claims (1)

[Scope of utility model registration request] 1. An adsorption electrode having a substantially hollow hemispherical cup that communicates with the inside of a rubber ball and is adsorbed on the surface of a living body to detect a biomedical signal, wherein the cup comprises two layers of conductive rubber and elastic rubber. An adsorption electrode characterized by being formed in.