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Biosensor

  • US 6,776,888 B2
  • Filed: 03/26/2002
  • Issued: 08/17/2004
  • Est. Priority Date: 07/31/2000
  • Status: Expired due to Fees
First Claim
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1. A biosensor comprising:

  • an insulating base plate, an electrode system that is provided on the base plate and has at least a working electrode and a counter electrode, a cover member that is combined with the base plate to define a sample solution supply pathway for leading a sample solution from a sample supply unit to the electrode system, wherein the sample supply unit is located on a side of the electrode system, a reaction reagent system including at least an oxidation-reduction enzyme and an electron mediator, and a filter in the sample solution supply pathway, the filter disposed between the electrode system and the sample supply unit, the biosensor having a space that encircles the surface of the filter in an area located between a first end of the filter close to the sample supply unit and a second end of the filter close to the electrode system, wherein said space has a width of 0.5 mm to 5.0 mm.

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