US 12,029,567 B2
Biopotential measuring electrode and biopotential measuring instrument
Mao Katsuhara, Tokyo (JP); and Ryo Sasaki, Tokyo (JP)
Assigned to SONY CORPORATION, Tokyo (JP)
Appl. No. 17/055,517
Filed by SONY CORPORATION, Tokyo (JP)
PCT Filed Mar. 25, 2019, PCT No. PCT/JP2019/012478
§ 371(c)(1), (2) Date Nov. 13, 2020,
PCT Pub. No. WO2019/220776, PCT Pub. Date Nov. 21, 2019.
Claims priority of application No. 2018-094405 (JP), filed on May 16, 2018.
Prior Publication US 2021/0121113 A1, Apr. 29, 2021
Int. Cl. A61B 5/268 (2021.01); A61B 5/265 (2021.01); B82Y 30/00 (2011.01); B82Y 35/00 (2011.01); B82Y 40/00 (2011.01)
CPC A61B 5/268 (2021.01) [A61B 5/265 (2021.01); B82Y 30/00 (2013.01); B82Y 35/00 (2013.01); B82Y 40/00 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A biopotential measuring electrode, comprising:
a base material resin layer in a portion of the biopotential measuring electrode, wherein
the portion of the biopotential measuring electrode is configured to be in contact with a living body,
the base material resin layer that comprises:
a resin material, rubber, or an elastomer, as a main component; and
a conductive particle, wherein the conductive particle comprises:
a base material particle, and
a surface-treated region in which at least a part of a surface of the base material particle is coated or substituted with a predetermined material that exhibits conductivity, and
an amount of the conductive particles dispersed in a side, of the base material resin layer, that is configured to be closer to the living body is greater than an amount of the conductive particles dispersed on another side of the base material resin layer.