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Cell potential measuring electrode and measuring apparatus using the same

  • US 6,132,683 A
  • Filed: 12/23/1998
  • Issued: 10/17/2000
  • Est. Priority Date: 12/23/1998
  • Status: Expired
First Claim
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1. A cell potential measuring electrode assembly suitable for measuring electrical potential in a neural sample comprising:

  • a. a plurality of measurement microelectrodes insulated from each other and located on an insulating substrate in a measuring region,b. a plurality of reference electrodes located on said insulating substrate and isolated from each other in said measuring region, each of said plurality of reference electrodes having an impedance smaller than said each of said measurement electrodes when measured in an electrolyte covering said measuring region at 1 kHz, 50 mv.

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