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Method for manufacturing biological electrode

A manufacturing method, biological technology, applied in the direction of cable/conductor manufacturing, circuit, conductive material dispersed in non-conductive inorganic materials, etc., can solve the problems of complicated manufacturing process and achieve the effect of simple manufacturing

Pending Publication Date: 2022-07-15
NOK CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, for example, in the manufacture of biological electrodes, it is necessary to carry out operations such as sieving and preparing the silver powder used immediately before the preparation of the material, and there is also a problem that the manufacturing process becomes complicated.

Method used

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  • Method for manufacturing biological electrode
  • Method for manufacturing biological electrode
  • Method for manufacturing biological electrode

Examples

Experimental program
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Effect test

Embodiment 1

[0115] The following formulation components were mixed with a centrifugal mixer for 30 seconds, pressure-crosslinked at 150°C for 10 minutes (primary crosslinking), followed by oven crosslinking (secondary crosslinking) at 150°C for 30 minutes, to prepare a silicone The biological electrode of Example 1 made of rubber. The living body electrode of Example 1 was formed into a cylindrical shape with an end face having a diameter of 10 mm and an axial length of 5 mm. In addition, the produced biological electrode was immersed in a 10% NaCl aqueous solution, and heated and pressurized under the conditions of 121° C. and 2 atmospheres for 1 hour. The biological electrode of Example 1 was referred to as "conductive rubber body 1". The pure silver particles ("FA-2-3" manufactured by DOWA Electronics Co., Ltd.) in the following formulation components were silver flakes at the time of their preparation.

[0116] (Formulation components of the conductive rubber body 1)

[0117] · Roo...

Embodiment 2

[0123] The biological electrode of Example 2 was produced by the same method as in Example 1, except that the following formulation components were changed to the following formulation components. The biological electrode of Example 2 was referred to as "conductive rubber body 2".

[0124] (Components for the preparation of the conductive rubber body 2)

[0125] · Room temperature curing liquid silicone rubber (a mixture of "KE-106" and "CAT-RG" manufactured by Shin-Etsu Chemical Co., Ltd. at a ratio of 10:1) 100 parts by mass

[0126] 4 150 parts by mass of the above mixed silver powder

[0127] · 150 parts by mass of pure silver particles ("FA-2-3" manufactured by DOWA Electronics Co., Ltd.)

[0128] 10 parts by mass of silicone oil 1 ("KF-6015" manufactured by Shin-Etsu Chemical Co., Ltd.)

[0129] · Silicone oil 2 ("KF-6106" manufactured by Shin-Etsu Chemical Co., Ltd.) 10 parts by mass

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Abstract

The present invention provides a method for manufacturing a biological electrode, which can simply manufacture a biological electrode in which the increase in resistance value along with strain is suppressed over time. This method for producing a biological electrode comprises: a step for obtaining a mixed silver powder by adding fumed silica to an agglomerated silver powder; and forming a conductive rubber body containing the silicone rubber and the mixed silver powder.

Description

technical field [0001] The present invention relates to a method of manufacturing a bioelectrode, for example, to a method of manufacturing a bioelectrode containing silver powder. Background technique [0002] Conventionally, thin plates of highly conductive metals such as gold, silver, platinum, and copper have been used as materials for biological electrodes. These materials for biological electrodes made of high-conductivity metals have poor adhesion to the skin, and are insufficient in detection of electrical signals from the skin. Therefore, in order to improve the detection of electrical signals from the skin when using these highly conductive metal bioelectrode materials, it is necessary to apply a gel, an ointment, a paste, or the like on the skin. In this case, since the applied coating material remains on the hair and the like, and causes discomfort, post-treatment such as shampooing is required. [0003] Therefore, in recent years, a conductive silicone rubber ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/263H01B1/22H01B13/00
CPCA61B5/263H01B1/22A61B2562/125A61B5/265A61B5/268Y02E60/50A61B2562/0215
Inventor 二嶋谅
Owner NOK CORP