DEVICES AND METHODS RELATING TO ELECTROCHEMICAL BIOSENSORS
First Claim
1. A test strip, comprising:
- a first sensor adapted to test a sample of a bodily fluid in a first measurement region of a sample cavity; and
a second sensor adapted to test the same sample within a second measurement region of the sample cavity;
wherein the first measurement region and second measurement region total at most about 240 nL.
2 Assignments
0 Petitions
Accused Products
Abstract
A system for testing for analytes in a sample of biological fluid includes a test strip that defines a cavity for receiving the sample. At least two sets of electrodes are adjacent the sample cavity, including one for measuring one property of the sample, and another for measuring one or more other properties of the sample, such as temperature and/or the presence or magnitude of confounding variables. The measurements are combined to yield the desired result. At least one set of working and counter electrodes each have a plurality of elongated “fingers” interdigitated with those of the other electrode in the set. The gaps between fingers can be quite small, so that the two electrode sets together can operate in a small measurement volume of sample. Additional electrodes can be included that measure the presence or sufficiency of the sample, and additional traces on the strip can act as configuration identifiers.
4 Citations
18 Claims
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1. A test strip, comprising:
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a first sensor adapted to test a sample of a bodily fluid in a first measurement region of a sample cavity; and a second sensor adapted to test the same sample within a second measurement region of the sample cavity; wherein the first measurement region and second measurement region total at most about 240 nL. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of measuring concentration of an analyte in a sample of bodily fluid, comprising:
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obtaining a first response to an application of a first electrical signal to the sample; obtaining a second response to an application of a second electrical signal to the sample; and using the first response and the second response to derive a measurement of the concentration of the analyte in the sample. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification