A biosignal sensing electrode that includes: a conductive film containing particles of a layered material including one or plural layers, the one or plural layers includes a layer body represented by: M.sub.mX.sub.n, wherein M is at least one metal of Group 3, 4, 5, 6, or 7, X is a carbon atom, a nitrogen atom, or a combination thereof, n is 1 to 4, m is more than n and 5 or less, and a modifier or terminal T exists on a surface of the layer body, wherein T is at least one selected from a hydroxyl group, a fluorine atom, a chlorine atom, an oxygen atom, or a hydrogen atom; and a porous membrane that contains a hydrophilic polymer, the porous membrane having a first surface in contact with at least part of the conductive film and a second surface defining a contact surface with a subject.

A biosignal sensing electrode that includes: a conductive film containing particles of a layered material including one or plural layers, the one or plural layers includes a layer body represented by: M.sub.mX.sub.n, wherein M is at least one metal of Group 3, 4, 5, 6, or 7, X is a carbon atom, a nitrogen atom, or a combination thereof, n is 1 to 4, m is more than n and 5 or less, and a modifier or terminal T exists on a surface of the layer body, wherein T is at least one selected from a hydroxyl group, a fluorine atom, a chlorine atom, an oxygen atom, or a hydrogen atom; and a porous membrane that contains a hydrophilic polymer, the porous membrane having a first surface in contact with at least part of the conductive film and a second surface defining a contact surface with a subject.

A biomedical electrode according to the present invention includes: a plate-shaped support portion; an elastic pillar portion that is provided on a first surface of the plate-shaped support portion; and a conductive resin layer that is formed to cover a distal end of the elastic pillar portion, in which when measured at 37° C. according to JIS K 6253 (1997), a type A durometer hardness of a surface of the elastic pillar portion is higher than 35 and 65 or lower.

A biomedical electrode according to the present invention includes: a plate-shaped support portion; an elastic pillar portion that is provided on a first surface of the plate-shaped support portion; and a conductive resin layer that is formed to cover a distal end of the elastic pillar portion, in which when measured at 37° C. according to JIS K 6253 (1997), a type A durometer hardness of a surface of the elastic pillar portion is higher than 35 and 65 or lower.

A probe device includes an optical device including at least one of a photodetector or a first light source. A cover structure is included and is arranged in front of the optical device. The cover structure includes an electrode which contacts, in use, a body tissue.

A probe device includes an optical device including at least one of a photodetector or a first light source. A cover structure is included and is arranged in front of the optical device. The cover structure includes an electrode which contacts, in use, a body tissue.

Provided is a method for manufacturing a biological electrode capable of simply manufacturing a biological electrode in which an increase in resistance value over time due to strain is suppressed. The method for manufacturing a biological electrode includes a step of adding fumed silica to an aggregated silver powder to obtain a mixed silver powder and a step of forming a conductive rubber body containing a silicone rubber and the mixed silver powder.

A wearable biological signal measuring element is attached to a garment and detachably connected to a controller, the wearable biological signal measuring element including: an electrode in contact with skin; an electric line connected to the electrode; an electric connector connected to the electric line, penetrating the garment, and detachably connected to the controller outside the garment; and a water supply mechanism including a water guiding mechanism and a first water tank connected to an opening of the water guiding mechanism inside the garment and including a through hole in a contact surface with the electrode.

A signal measurement circuit comprises: a sensor electrode layer connected via a sensor cable to a measurement amplifier circuit; an active shielding layer, which runs along a side of the sensor electrode layer that faces away from the patient; and a first insulating layer that runs between the sensor electrode layer and the active shielding layer. The sensor electrode layer and the active shielding layer are embodied to be electrically conductive.

A proto-microelectrode, a proto-microelectrode bundle and array, a method of manufacture of the proto-microelectrode, and a method of using the proto-microelectrode, the proto-microelectrode being capable of forming a microelectrode upon implantation into soft tissue, and includes an oblong electrode body; an optional first coat of electrically non-conducting material on the electrode body; a second coat of water insoluble flexible polymer material enclosing, at a distance, the electrode body and the first coat, the second coat including one or more through openings; a first layer of ice disposed between the electrode body and the second coat.