Dual chamber, multi-analyte test strip with opposing electrodes
First Claim
1. A dual chamber, multi-analyte test strip comprising:
- a first insulating layer;
a first electrically conductive layer disposed on the first insulating layer, the electrically conductive layer including a first working electrode with a first analyte contact pad;
a first patterned spacer layer positioned above the first electrically conductive layer, the patterned spacer layer defining a first sample-receiving chamber therein that overlies the first working electrode, the first sample-receiving chamber having a first end opening and a second end opening;
a first counter/reference electrode layer overlying and exposed to the first sample receiving chamber, the first counter/reference electrode layer configured in an opposing relationship to the first working electrode and having a first counter/reference contact pad;
a counter/reference insulating layer disposed over the first counter/reference electrode layer,a second counter/reference electrode layer disposed over the counter/reference insulating layer the second counter/reference electrode layer having a second counter/reference contact pad,a second patterned spacer layer positioned above the second counter/reference electrode layer, the second patterned spacer layer defining a second sample-receiving chamber therein with a first end opening and a second end opening;
a second electrically conductive layer disposed above the second patterned spacer layer, the second electrically conductive layer including a second working electrode with a second analyte contact pad;
a second insulating layer disposed above the second electrically conductive layer;
a first analyte reagent layer disposed on at least a portion of the first working electrode within the first sample-receiving chamber; and
a second analyte reagent layer disposed on at least a portion of the second working electrode within the second sample-receiving chamber;
wherein the second sample-receiving chamber overlies the second working electrode, andwherein the second counter/reference electrode layer is exposed to the second sample receiving chamber and configured in an opposing relationship to the second working electrode.
9 Assignments
0 Petitions
Accused Products
Abstract
A dual chamber, multi-analyte test strip has a first insulating layer, a first electrically conductive layer, with a first working electrode, disposed on the first insulating layer and a first patterned spacer layer positioned above the first electrically conductive layer. The first patterned spacer layer has a first sample-receiving chamber, with first and second end openings, defined therein that overlies the first working electrode. The test strip also includes a first counter/reference electrode layer that is exposed to the first sample receiving chamber and is in an opposing relationship to the first working electrode. The test strip further includes a counter/reference insulating layer disposed over the first counter/reference electrode layer and a second counter/reference electrode layer disposed on the counter/reference substrate. Also included in the test strip is a second patterned spacer layer that is positioned above the second counter/reference electrode layer. The second patterned spacer layer has a second sample-receiving chamber, with first and second end openings, defined therein. The test strip additionally has a second electrically conductive layer, with a second working electrode, disposed above the second patterned spacer layer, a second insulating layer disposed above the second electrically conductive layer, a first analyte reagent layer disposed on the first working electrode within the first sample-receiving chamber; and a second analyte reagent layer disposed on the second working electrode within the second sample-receiving chamber. The second counter/reference electrode layer is exposed to the second sample receiving chamber and is in an opposing relationship to the second working electrode.
16 Citations
20 Claims
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1. A dual chamber, multi-analyte test strip comprising:
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a first insulating layer; a first electrically conductive layer disposed on the first insulating layer, the electrically conductive layer including a first working electrode with a first analyte contact pad; a first patterned spacer layer positioned above the first electrically conductive layer, the patterned spacer layer defining a first sample-receiving chamber therein that overlies the first working electrode, the first sample-receiving chamber having a first end opening and a second end opening; a first counter/reference electrode layer overlying and exposed to the first sample receiving chamber, the first counter/reference electrode layer configured in an opposing relationship to the first working electrode and having a first counter/reference contact pad; a counter/reference insulating layer disposed over the first counter/reference electrode layer, a second counter/reference electrode layer disposed over the counter/reference insulating layer the second counter/reference electrode layer having a second counter/reference contact pad, a second patterned spacer layer positioned above the second counter/reference electrode layer, the second patterned spacer layer defining a second sample-receiving chamber therein with a first end opening and a second end opening; a second electrically conductive layer disposed above the second patterned spacer layer, the second electrically conductive layer including a second working electrode with a second analyte contact pad; a second insulating layer disposed above the second electrically conductive layer; a first analyte reagent layer disposed on at least a portion of the first working electrode within the first sample-receiving chamber; and a second analyte reagent layer disposed on at least a portion of the second working electrode within the second sample-receiving chamber; wherein the second sample-receiving chamber overlies the second working electrode, and wherein the second counter/reference electrode layer is exposed to the second sample receiving chamber and configured in an opposing relationship to the second working electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for determining multiple analytes in a single bodily fluid sample, the method comprising:
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inserting a dual chamber, 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 dual chamber, multi-analyte test strip; a second electrical connector of the test meter comes into contact with a second analyte contact pad of a second working electrode of the dual chamber, multi-analyte test strip; a third electrical connector of the test meter comes into contact with a first counter/reference electrode contact pad of the dual chamber, multi-analyte test strip; and a fourth electrical connector of the test meter comes into contact with a second counter/reference electrode contact pad of the dual chamber, multi-analyte test strip, and wherein the third electrical connector and the fourth electrical connector are in an opposing configuration; determining a first analyte and a second analyte in a single bodily fluid sample applied to the dual chamber, multi-analyte test strip using a signal processing module of the test meter, the single bodily fluid sample having entered a first sample-receiving chamber and a second sample-receiving chamber of the dual chamber, multi-analyte test strip following the application of the bodily fluid sample, wherein, during the determining step, the signal processing module receives a first signal via the first electrical connector and the third electrical connector and employs the first signal for the determination of the first analyte; and wherein, during the determining step, the signal processing module receives a second signal via the second electrical connector and the fourth electrical connector and employs the second signal for the determination of the second analyte; and wherein the first counter/reference electrode layer is configured in an opposing relationship to the first working electrode; and wherein the second counter/reference electrode layer is configured in an opposing relationship to the second working electrode. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification