Patent ID: 9555233
Date: 2017-01-31
CPC Classifications: A61N

Claim:
1. An electrode configured for use in a direct current electrical stimulation system, which includes a control circuit configured to provide a stimulating current, said electrode comprising: a main body that is made of an electrically conductive material, that is configured to be electrically coupled to the control circuit to receive the stimulating current therefrom, and that includes a base wall and a surrounding wall extending from said base wall and cooperating with said base wall to define a receiving space for receiving an electrically-conductive liquid; and a plurality of elastically-deformable hollow pin members that extend from said main body and that are in fluid communication with said receiving space, said pin members permitting delivery of the electrically-conductive liquid in said receiving space to a subject when said pin members are adapted to be placed in direct contact with the subject; wherein each of said pin members includes: an elastically-deformable electrically-conductive tubular pin body extending from said base wall, electrically coupled to said main body, and defining a channel that is in fluid communication with said receiving space; and an elastically-deformable liquid-permeable contact body disposed at said pin body and configured to permit passage of the electrically-conductive liquid in said channel therethrough; wherein said base wall of said main body is formed with a plurality of through holes in fluid communication with said receiving space, said channel of each of said pin members being in fluid communication with said receiving space via a corresponding one of said through holes; and wherein said base wall is further formed with at least one auxiliary through hole in fluid communication with said receiving space and offset from said pin members, said electrode further comprising a liquid-permeable layer abutting against one side of said base wall opposite to said receiving space and disposed to cover said at least one auxiliary through hole.