Test strip for simultaneous detection of a plurality of analytes
First Claim
1. A test strip for simultaneously detecting and measuring more than one analyte in a sample comprising:
- (a) a distribution layer for uniform diffusion of the sample;
(b) an optional blood filtration layer;
(c) a reagent pad for each analyte to be measured, wherein each reagent pad containing dry reagents for detection of the analyte to be detected by a specific reagent pad, wherein said reagents produce a change in color proportional to the concentration of the analyte detected in the sample; and
(d) a support for the reagent pads wherein changes in the color of the reagent pads can be viewed.
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Accused Products
Abstract
A test strip for simultaneously measuring a plurality of analytes in blood or other fluids comprising a plurality of reagent pads containing reagents specific to particular analytes located on a support. Each reagent pad is covered and in close contact with a sample distributing layer and an optional blood filtering layer. Color produced by analytes in the sample is viewed through apertures in the support. The colors of the pads are read simultaneously with an instrument such as a reflectance meter containing individual LED'"'"'s as light sources for each reagent pad. The intensity of the color of the individual pad can be used to detect semi-quantitative or quantitative concentration of analytes in a sample on site, allowing for quick communication of results to a remote site by electronic means.
20 Citations
26 Claims
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1. A test strip for simultaneously detecting and measuring more than one analyte in a sample comprising:
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(a) a distribution layer for uniform diffusion of the sample;
(b) an optional blood filtration layer;
(c) a reagent pad for each analyte to be measured, wherein each reagent pad containing dry reagents for detection of the analyte to be detected by a specific reagent pad, wherein said reagents produce a change in color proportional to the concentration of the analyte detected in the sample; and
(d) a support for the reagent pads wherein changes in the color of the reagent pads can be viewed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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13. A method for simultaneously measuring more than one analyte in a sample comprising applying said sample to a test strip comprising:
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(a) a distribution layer for uniform diffusion of the sample;
(b) an optional blood filtration layer;
(c) a reagent pad for each analyte to be measured, wherein each reagent pad contains dry reagents for detection of the analyte to be detected by a specific reagent pad, wherein said reagents produce a change in color proportion to the concentration of the analyte detected in the sample; and
(d) a support for the reagent pads wherein changes in the color of the reagent pads can be viewed; and
(e) detecting said changes in color simultaneously with a color measuring device.
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Specification