Patent ID: 6928312

Claim:
An electrode comprising a laminated sheet having a hydrogel layer of tacky electrically conductive material, an electrically conductive layer, and one or more additional layers, said conductive layer being between said hydrogel layer and said additional layers and being in electrical contact with said hydrogel layer; a rigid body having a first body surface facing said conductive layer of said laminated sheet, a second body surface opposite from said first body surface, first and second opposite body edges, and a body opening between said first and second opposite body edges; said body having a first pair of prongs, a second pair of prongs, a third prong, and a fourth prong extending therefrom; a wire having a bare wire portion free from insulation positioned between said first body surface of said body and said conductive layer of said laminated sheet and being in electrical contact with said conductive layer of said laminated sheet; said bare wire portion extending across said body opening and being positioned between said first pair of spaced apart prongs and also between said second pair of spaced apart prongs; said first and second pairs of prongs and said third and fourth prongs each piercing in a first direction through said conductive layer and said additional layers, and then piercing in a second direction opposite from said first direction through said additional layers and said conductive layer and contacting said rigid body to attach said bare wire portion in electrical contact with said conductive layer.