Abstract: A bioelectrode applicable to a body part has a pouch having a solid bottom formed of a sheet of electrically insulating watertight material being solid throughout said bottom, and a top sealed to said bottom and having an aperture remote from that bottom. The pouch defines an enclosed interior wider than that aperture. An electrode is located in the pouch and is spaced from the mentioned aperture. An electrolyte-absorbing pad is located in the pouch between the electrode and the mentioned aperture and extends in the above mentioned closed interior beyond the width of the aperture.Another bioelectrode applicable to a body party has a pouch having a bottom formed of a sheet of electrically insulating watertight material having a hole, and a top sealed to the bottom and having an aperture remote from the bottom. The pouch defines an enclosed interior wider than the latter aperture. An electrode in the pouch is spaced from the mentioned aperture.

Abstract: Bioelectrodes applicable to body parts comprise an electrically insulating structure having a bottom portion and a lateral wall portion defining a cavity. An electrode is located at the bottom portion. A pad of electrolyte-absorbent resilient material is located in the cavity and is dimensioned to leave a lateral space between the pad and the wall portion and is further dimensioned to contact the electrode at the bottom portion and to project out of the cavity in a relaxed condition. A removable cover on the electrically insulating structure is constructed to compress the resilient pad completely into the cavity.Other bioelectrodes applicable to body parts comprise a silver, silver chloride electrode having an electrically insulating, water impermeable, inert organic matrix, a pad for retaining an electrolyte at this electrode, and a container for the electrode and the electrolyte pad.