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AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsHirokazu Sugihara, Hiroaki Oka, Ken Shimono, Ryuta Ogawa, Makoto Taketani
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This invention relates to a low impedance cell potential measuring electrode assembly typically having a number of microelectrodes on an insulating substrate and having a wall enclosing the region including the microelectrodes. The device is capable of measuring electrophysiological activities of a monitored sample using the microelectrodes while cultivating those cells or tissues in the in the region of the microelectrodes. The invention utilizes independent reference electrodes to lower the impedance of the overall system and to therefore lower the noise often inherent in the measured data. Optimally the microelectrodes are enclosed by a physical wall used for controlling the atmosphere around the monitored sample.
A cell potential measuring electrode assembly suitable for measuring electrical potential in a neural sample comprising:
A cell potential measuring electrode comprising plural microelectrodes disposed on an insulating substrate, a conductive pattern for wiring of said microelectrodes, an electric contact connected to the end of said conductive pattern, an insulating film covering the surface of said conductive pattern, and a wall enclosing the region including the microelectrodes on the surface of said insulating film, being a cell potential measuring electrode for use in measurement of electrophysiological activities while cultivating cells or tissues in a region enclosed by said wall,
Dependencies are inferred from the claim text.