Complex Index Functions
First Claim
1. A method for determining an analyte concentration in a sample, comprising:
- generating at least one output signal value responsive to the concentration of the analyte in the sample;
determining at least one Δ
S value from at least a complex index function, the complex index function including at least two terms, where each of the at least two terms is modified by a weighing coefficient;
compensating the at least one output signal value with at least one reference correlation and the at least one Δ
S value; and
determining the analyte concentration in the sample from the at least one output signal value.
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Accused Products
Abstract
A biosensor system determines analyte concentration from an output signal generated from a light-identifiable species or a redox reaction of the analyte. The biosensor system adjusts a correlation for determining analyte concentrations from output signals or determined analyte concentrations with one or more complex index function extracted from the output signals or from other sources. The complex index functions determine at least one slope deviation value, ΔS, or normalized slope deviation from one or more error parameters. The slope-adjusted correlation between analyte concentrations and output signals may be used to determine analyte concentrations having improved accuracy and/or precision from output signals including components attributable to bias.
24 Citations
21 Claims
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1. A method for determining an analyte concentration in a sample, comprising:
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generating at least one output signal value responsive to the concentration of the analyte in the sample; determining at least one Δ
S value from at least a complex index function, the complex index function including at least two terms, where each of the at least two terms is modified by a weighing coefficient;compensating the at least one output signal value with at least one reference correlation and the at least one Δ
S value; anddetermining the analyte concentration in the sample from the at least one output signal value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A biosensor system, for determining an analyte concentration in a sample, comprising:
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a test sensor having a sample interface adjacent to a reservoir formed by the strip; and a measurement device having a processor connected to a sensor interface, the sensor interface having electrical communication with the sample interface, and the processor having electrical communication with a storage medium, where the processor determines an output signal value responsive to the concentration of the analyte in the sample from the sensor interface, where the processor determines at least one Δ
S value from at least a complex index function, the complex index function including at least two terms, where each of the at least two terms is modified by a weighing coefficient, andwhere the processor compensates the output signal value with the at least one Δ
S value and at least one reference correlation present in the storage medium.
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21-38. -38. (canceled)
Specification