Test strip with permutative grey scale calibration pattern
First Claim
1. A test strip for the determination of an analyte in a body fluid sample, the test strip comprising:
- a substrate, the substrate having;
a working surface for receiving the body fluid sample; and
a reverse surface that is opposition to the working surface; and
a permutative grey scale calibration pattern disposed on at least one of the working surface and reverse surface, the permutative grey scale calibration pattern including at least a first grey scale region and a second grey scale region,wherein the first and second grey scale regions define a grey scale permutation that uniquely corresponds to a calibration code of the test strip.
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Accused Products
Abstract
A test strip for the determination of an analyte, such as glucose, in a body fluid sample (for example, a whole blood sample) includes a substrate with a working surface for receiving the body fluid sample and a reverse surface that is in opposition to the working surface. The test strip also includes a permutative grey scale calibration pattern disposed on either of the working and reverse surfaces with the permutative grey scale calibration pattern including more than one grey scale region. Moreover, the scale regions of the test strip define a grey scale permutation that uniquely corresponds to a calibration code of the test strip.
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Citations
12 Claims
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1. A test strip for the determination of an analyte in a body fluid sample, the test strip comprising:
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a substrate, the substrate having; a working surface for receiving the body fluid sample; and a reverse surface that is opposition to the working surface; and a permutative grey scale calibration pattern disposed on at least one of the working surface and reverse surface, the permutative grey scale calibration pattern including at least a first grey scale region and a second grey scale region, wherein the first and second grey scale regions define a grey scale permutation that uniquely corresponds to a calibration code of the test strip. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification