Test strip for detection of analyte and methods of use
First Claim
1. A reagent test strip comprising:
- a. a top support layer comprising a sample aperture;
b. a membrane comprising a reagent system for indicating the concentration of a target;
c. a spreading layer;
d. a bottom support layer comprising a measuring port in substantial alignment or approximate alignment with said sample aperture;
wherein said membrane is affixed to said top support layer;
further wherein said membrane is positioned between said top support layer and said bottom support layer;
further wherein said spreading layer is positioned above said top support layer and in substantial or approximate alignment with said sample aperture; and
further wherein a fluid applied to said spreading layer, passes through said sample aperture and contacts said membrane.
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Accused Products
Abstract
One aspect of the present invention is a reagent test strip that includes: a) a top support layer including a sample aperture; b) a membrane that includes a reagent system for indicating the concentration of a target; c) a spreading layer; d) a bottom support layer including a measuring port in substantial alignment or approximate alignment with the sample aperture. Preferably, the membrane is affixed to the top support layer. Preferably, the membrane is positioned between the top support layer and the bottom support layer. Preferably, the spreading layer is positioned above the top support layer and in substantial or approximate alignment with the sample aperture. Preferably, a fluid applied to the spreading layer, passes through the sample aperture and contacts the membrane.
60 Citations
31 Claims
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1. A reagent test strip comprising:
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a. a top support layer comprising a sample aperture;
b. a membrane comprising a reagent system for indicating the concentration of a target;
c. a spreading layer;
d. a bottom support layer comprising a measuring port in substantial alignment or approximate alignment with said sample aperture;
wherein said membrane is affixed to said top support layer;
further wherein said membrane is positioned between said top support layer and said bottom support layer;
further wherein said spreading layer is positioned above said top support layer and in substantial or approximate alignment with said sample aperture; and
further wherein a fluid applied to said spreading layer, passes through said sample aperture and contacts said membrane. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 24, 25, 26, 27, 28, 29, 30, 31)
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23. A reagent test strip comprising:
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a. a top support layer comprising a sample aperture;
b. a membrane comprising a reagent system for indicating the concentration of a target;
c. at least one spacer able to reduce contact between said membrane and a surface; and
wherein said membrane is positioned below said top support layer and in substantial alignment or approximate alignment with said sample aperture.
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Specification