Test strip and measurement device for its evaluation
First Claim
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1. A test strip for optically determining the concentration of a substance in a liquid, said test strip comprising a strip-shaped transparent carrier with upper and lower faces;
- opaque material on and covering a portion of one of said faces of the carrier, said opaque material defining a reaction field on said carrier free of said opaque material and with said opaque material being located on at least two sides of said reaction field, a layer of reagent carrying medium carried by said carrier which layer of reagent carrying medium is located above said upper face of the carrier and covers said reaction field, which layer of reagent carrying medium upon wetting with the liquid to be investigated changes in regard to its optical reflectivity or transmissivity.
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Abstract
In a test strip for the optical determination of the concentration of a substance in a liquid, especially for blood sugar determination, including a strip-shaped carrier with a reaction field, defined by opaque material on the carrier, containing a reagent carrying medium, which reagent carrying medium upon wetting with the fluid to be investigated changes in regard to its reflectivity or transmissivity, the carrier consists of an optically transparent material onto which a thin-layered carrying medium containing the reagent is applied.
32 Citations
32 Claims
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1. A test strip for optically determining the concentration of a substance in a liquid, said test strip comprising a strip-shaped transparent carrier with upper and lower faces;
- opaque material on and covering a portion of one of said faces of the carrier, said opaque material defining a reaction field on said carrier free of said opaque material and with said opaque material being located on at least two sides of said reaction field, a layer of reagent carrying medium carried by said carrier which layer of reagent carrying medium is located above said upper face of the carrier and covers said reaction field, which layer of reagent carrying medium upon wetting with the liquid to be investigated changes in regard to its optical reflectivity or transmissivity.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
Specification