G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 33/48 (2006.01)
Patent
CA 2481193
A test strip for detection or measurement of analytes in a fluid, for example, glucose in human blood, comprises a first insulating substrate having first and second surfaces, a notch along an edge, and a vent hole; at least two electrically conductive tracks affixed to the first surface of the first insulating substrate; a second insulating substrate having first and second surfaces and first and second openings, the second surface being affixed to the conductive tracks and the first surface of the first insulating substrate, the first opening exposing a portion of the conductive tracks for electrical connection to a meter capable of measuring an electrical property, the second opening being located along an edge of the second insulating substrate and exposing a different portion of the conductive tracks, the notch in the first insulating substrate, and the vent hole; a test reagent overlaying at least a portion of the conductive tracks exposed by the second opening; and a roof having first and second surfaces and a notch along an edge, the second surface of the roof being affixed to the first surface of the second insulating substrate and positioned so that: 1) the second surface of the roof and the first surface of the first insulating substrate form opposing walls of a capillary fill chamber with a sample application port at said edge of the second insulating substrate, and 2) the notch in the roof overlays the notch in the first insulating substrate; whereby the notch in the roof and the notch in the first insulating substrate will cause a liquid aqueous sample, when touched to the sample application port, to flow into the capillary chamber without significant hesitation.
Bodensteiner Richard J.
Burke David W.
Crismore William F.
Delk R. Dale
Diebold Eric R.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
Roche Diagnostics Corporation
Roche Diagnostics Operations Inc.
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