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Dual glucose-turbidimetric analytical sensors

  • US 7,758,744 B2
  • Filed: 10/31/2005
  • Issued: 07/20/2010
  • Est. Priority Date: 10/05/2001
  • Status: Expired due to Fees
First Claim
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1. A dry reagent diagnostic device for the simultaneous analysis of two or more different analytes in a single application of a single sample of whole blood with a volume under 20 ul,wherein the first analyte is determined by a first detection zone, and a second detection zone, physically separated from the first detection zone, determines the second analyte;

  • a fluid bridge formed by the applied sample connects the two detection zones;

    said first detection zone and second detection zone having materials and geometry selected to allow simultaneous activation of both zones by a single unseparated whole blood drop;

    said detection zone materials and geometry being selected so as to return detectable analyte signals in the presence of whole blood;

    said detection zone materials and geometry being selected as to generate a detectable sample application signal upon initial contact with whole blood;

    said detectable sample application signal being capable of triggering an automated detection zone reader which is capable of performing subsequent test timing in an automated manner;

    and at least one of the detection zones produces a detectable change in an optical signal.

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