The present invention provides an electroencephalogram measurement structure formed by an ear-hanging structure and a second circuit board. The ear-hanging structure includes a body. An ear-hanging member is disposed at the extension of the body. The body can be worn on the ear via the ear-hanging member. In addition, a first reference electrode and a second reference electrode are disposed on the body and coupled to a first circuit board. The first circuit board is coupled to an electrical jack; the second circuit board is coupled to the electrical jack via an electrical plug. Thereby, the electroencephalogram measurement can be performed simply by wearing the ear-hanging member on the ear of the person under test. Hence, the problems of complicated wiring and inconvenience in wearing can be solved concurrently.

The present invention provides an electroencephalogram measurement structure formed by an ear-hanging structure and a second circuit board. The ear-hanging structure includes a body. An ear-hanging member is disposed at the extension of the body. The body can be worn on the ear via the ear-hanging member. In addition, a first reference electrode and a second reference electrode are disposed on the body and coupled to a first circuit board. The first circuit board is coupled to an electrical jack; the second circuit board is coupled to the electrical jack via an electrical plug. Thereby, the electroencephalogram measurement can be performed simply by wearing the ear-hanging member on the ear of the person under test. Hence, the problems of complicated wiring and inconvenience in wearing can be solved concurrently.

Exemplary pre-operative electrode-dispensing neuromonitoring gun systems and methods involve the administration of a neuromonitoring electrode to a patient. A system can include a dispensing device and a cartridge. The dispensing device can have a case, a trigger, and a pusher. The cartridge can have a plurality of electrodes. In some cases, an electrode can include two subdermal leads, a posterior connection port or plug, and a casing to house the connection port before placement and to cover the leads upon removal.

Exemplary pre-operative electrode-dispensing neuromonitoring gun systems and methods involve the administration of a neuromonitoring electrode to a patient. A system can include a dispensing device and a cartridge. The dispensing device can have a case, a trigger, and a pusher. The cartridge can have a plurality of electrodes. In some cases, an electrode can include two subdermal leads, a posterior connection port or plug, and a casing to house the connection port before placement and to cover the leads upon removal.

A system for monitoring one or more physiological parameters includes a plurality of patches positionable at a plurality of locations on a surface of a body, wherein the plurality of patches are electrically isolated from each other, wherein a first patch of the plurality of patches includes a transmitter configured to inject an electrical signal into the body at a first location on the surface of the body, and wherein a second patch of the plurality of patches includes a sensor configured to detect a bio-impedance signal at a second location on the surface of the body that is spaced from the first location, and wherein the bio-impedance signal is induced within the body by the electrical signal injected from the first patch which is electrically isolated from the second patch.

A system for monitoring one or more physiological parameters includes a plurality of patches positionable at a plurality of locations on a surface of a body, wherein the plurality of patches are electrically isolated from each other, wherein a first patch of the plurality of patches includes a transmitter configured to inject an electrical signal into the body at a first location on the surface of the body, and wherein a second patch of the plurality of patches includes a sensor configured to detect a bio-impedance signal at a second location on the surface of the body that is spaced from the first location, and wherein the bio-impedance signal is induced within the body by the electrical signal injected from the first patch which is electrically isolated from the second patch.

A holder apparatus of a bio-signal device comprises a holder, which comprises a pocket for a bio-signal processing device, an extension with a hollow, the hollow and the pocket forming a continuous cavity through the holder, a connector, and an elastic seal with a hole. A shape of the elastic seal is matched with a shape of the hollow of the extension at an interface of the pocket, and the hollow and a shape of the hole is matched with a shape of the connector for sealing an interface between the connector and the holder while the connector and the elastic seal are within the hollow and the connector is in contact with the elastic seal. Sealant filler fills the hollow of the extension and is in physical contact with the connector, which is in the hollow against the seal, the elastic seal and the sealant filler allowing the connector to mate electrically with a counter-connector moved within the cavity in a direction from the pocket toward the hollow.

A catheter has excellent in torque transmission properties to easily process a distal end portion of a catheter shaft to form a side hole, thereby protecting a lead wire that is inserted in a side hole. The catheter includes a shaft, ring-shaped electrodes that are mounted at an outer peripheral surface of a distal end portion of the shaft, and electrode lead wires. The shaft is made up of a braid that is embedded in a tube wall over an entire length of the shaft, side holes are formed in a tube wall of the distal end portion of the shaft, a distal end portion of each lead wire is joined to an inner peripheral surface of each electrode, the lead wires are inserted into the side holes and thus pass through meshes of the braid and enter a lumen of the shaft, and the side holes in which the lead wires are inserted are filled with a resin material.

A catheter has excellent in torque transmission properties to easily process a distal end portion of a catheter shaft to form a side hole, thereby protecting a lead wire that is inserted in a side hole. The catheter includes a shaft, ring-shaped electrodes that are mounted at an outer peripheral surface of a distal end portion of the shaft, and electrode lead wires. The shaft is made up of a braid that is embedded in a tube wall over an entire length of the shaft, side holes are formed in a tube wall of the distal end portion of the shaft, a distal end portion of each lead wire is joined to an inner peripheral surface of each electrode, the lead wires are inserted into the side holes and thus pass through meshes of the braid and enter a lumen of the shaft, and the side holes in which the lead wires are inserted are filled with a resin material.

An electrode device for recording electrophysiological neurosignals in nervous tissue of a living being includes a bundle of insulated electrical cables, where each cable has an electrical wire made of electrically conductive material and an insulation layer which covers and insulates the electrical wire. An electrical connector connects the electrical wires to a recording device. A free end of the bundle of insulated electrical cables distant from the electrical connector includes an implantation section for implantation in the nervous tissue of the living being. An electrophysiological recording system will have at least one such electrode device and a computer program arranged for execution on a computer.