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MULTI-ANALYTE TEST STRIP WITH SHARED COUNTER/REFERENCE ELECTRODE AND INLINE ELECTRODE CONFIGURATION

  • US 20110048972A1
  • Filed: 08/31/2009
  • Published: 03/03/2011
  • Est. Priority Date: 08/31/2009
  • Status: Abandoned Application
First Claim
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1. A multi-analyte test strip comprising:

  • a first insulating layer;

    an electrically conductive layer disposed on the first insulating layer, the first electrically conductive layer including;

    a first working electrode with a first analyte contact pad;

    a shared counter/reference electrode with a counter/reference electrode contact pad; and

    a second working electrode with a second analyte contact pada second insulating layer disposed above the first insulating layer;

    a patterned spacer layer positioned between the first insulating layer and the first electrically conductive layer, the patterned spacer layer defining a bodily fluid sample-receiving chamber therein that overlies the first working electrode, the shared counter/reference electrode and the second working electrode;

    at least one mediator reagent layer disposed over at least a portion of the first working electrode, at least a portion of the shared counter/reference electrode and at least a portion of the second working electrode;

    a first analyte reagent layer disposed at least over a portion of the first working electrode; and

    a second analyte reagent layer disposed at least over a portion of the second working electrode;

    wherein the first analyte electrode, shared counter/reference electrode and second analyte electrode are disposed on the first insulating layer in a planar inline configuration.

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