ANALYTICAL TEST STRIP WITH MINIMAL FILL-ERROR SAMPLE VIEWING WINDOW
First Claim
1. An analytical test strip comprising:
- a substrate;
an enzymatic reagent layer;
a top layer disposed over the enzymatic reagent layer, the top layer having a first portion and an opaque second portion; and
a sample receiving chamber defined within the analytical test strip, the sample receiving chamber having a working portion and a non-working portion;
wherein the first portion and the opaque second portion of the top layer are configured such that a user can view the working portion of the sample-receiving chamber through the first portion of the top layer and is precluded from viewing the non-working portion of the sample-receiving chamber by the opaque second portion of the top layer.
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Accused Products
Abstract
An electrochemical-based analytical test strip includes an electrically-insulating substrate, a patterned conductive layer disposed over the electrically-insulating substrate, a patterned insulating layer disposed over the patterned conductive layer, an enzymatic reagent layer disposed over the patterned conductive layer, a patterned adhesive layer disposed above the enzymatic reagent layer and a top layer disposed over the enzymatic reagent layer. In addition, the test strip has a sample-receiving chamber defined by the electrically-insulating substrate, the patterned conductive layer, the patterned insulating layer, the enzymatic reagent layer, the patterned adhesive layer and the top layer. The sample receiving chamber of the test strip has a working portion and a non-working portion and the top layer has a first portion and an opaque second portion. The first portion is configured such that a user can view the working portion of the sample-receiving chamber through the first portion of the top layer, while the opaque second portion is configured to preclude a user from viewing the non-working portion of the sample-receiving chamber.
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Citations
10 Claims
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1. An analytical test strip comprising:
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a substrate; an enzymatic reagent layer; a top layer disposed over the enzymatic reagent layer, the top layer having a first portion and an opaque second portion; and a sample receiving chamber defined within the analytical test strip, the sample receiving chamber having a working portion and a non-working portion; wherein the first portion and the opaque second portion of the top layer are configured such that a user can view the working portion of the sample-receiving chamber through the first portion of the top layer and is precluded from viewing the non-working portion of the sample-receiving chamber by the opaque second portion of the top layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification