MULTI-ANALYTE TEST STRIP WITH SHARED COUNTER/REFERENCE ELECTRODE AND INLINE ELECTRODE CONFIGURATION
First Claim
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.
2 Assignments
0 Petitions
Accused Products
Abstract
A multi-analyte test strip includes a first insulating layer and an electrically conductive layer disposed on the first insulating layer. The electrically conductive layer has 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 pad. The multi-analyte test strip also includes a second insulating layer disposed above the first insulating layer and a patterned spacer layer positioned between the first insulating layer and the first electrically conductive layer with the patterned spacer layer defining a bodily fluid sample-receiving chamber that overlies the first working electrode, the shared counter/reference electrode and the second working electrode. The multi-analyte test strip further includes a mediator reagent layer disposed over the first working electrode, the shared counter/reference electrode and the second working electrode; a first analyte reagent layer disposed over the first working electrode and mediator reagent layer; and a second analyte reagent layer disposed over the second working electrode and mediator reagent layer. Furthermore, the first analyte electrode, shared counter/reference electrode and second analyte electrode of the multi-analyte test strip are disposed on the first insulating layer in a planar inline configuration.
27 Citations
31 Claims
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1. A multi-analyte test strip comprising:
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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 pad a 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A test meter for use with a multi-analyte test strip, the test meter comprising:
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a test strip receiving module with at least; a first electrical connector configured for contacting a first analyte contact pad of a first working electrode of the multi-analyte test strip; a second electrical connector configured for contacting a counter/reference electrode contact pad of a shared counter/reference electrode of the multi-analyte test strip; and a third electrical connector configured for contacting a second analyte contact pad of a second working electrode of the multi-analyte test strip; and a signal processing module, wherein the signal processing module is configured to receive a first signal via the first electrical connector and the second electrical connector and employ the first signal for the determination of a first analyte in a bodily fluid sample applied to the multi-analyte test strip; and wherein the signal processing module is also configured to receive a second signal via the second electrical connector and third electrical connector and employ the second signal for the determination of a second analyte in the bodily fluid sample applied to the multi-analyte test strip; and wherein the first analyte electrode, shared counter/reference electrode and second analyte electrode are disposed on a first insulating layer of the multi-analyte test strip in a planar inline configuration. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method for determining multiple analytes in a single bodily fluid sample, the method comprising:
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inserting a multi-analyte test strip into a test meter such that; a first electrical connector of the test meter comes into contact with a first analyte contact pad of a first working electrode of the multi-analyte test strip; a second electrical connector of the test meter comes into contact with a counter/reference electrode contact pad of a shared counter/reference electrode of the multi-analyte test strip; and a third electrical connector of the test meter comes into contact with a second analyte contact pad of a second working electrode of the multi-analyte test strip; determining a first analyte and a second analyte in a single bodily fluid sample applied to the multi-analyte test strip using a signal processing module of the test meter, wherein, during the determining step, the signal processing module receives a first signal via the first electrical connector and the second electrical connector and employs the first signal for the determination of a first analyte; and wherein, during the determining step, the signal processing module receives a second signal via the second electrical connector and the third electrical connector and employs the second signal for the determination of a second analyte; and wherein the first analyte electrode, shared counter/reference electrode and second analyte electrode are disposed on a first insulating layer of the multi-analyte test strip in a planar inline configuration. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31)
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Specification