System and method for determining a temperature during analyte measurement
First Claim
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1. A method for measuring a temperature during a test for determining a concentration of medically significant component of a biological fluid, comprising the steps of:
- a) providing a sensor having at least one measurement electrode adapted to measure the biological fluid;
b) applying a first signal to the measurement electrode;
c) measuring a first response to the first signal;
d) using the first response to produce an indication of a temperature of the biological fluid;
e) applying a second signal to the measurement electrode;
f) measuring a second response to the second signal to produce an indication of the concentration of the medically significant component; and
g) determining a temperature-corrected concentration of the medically significant component based upon the first responses.
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Abstract
A method of measuring an analyte in a biological fluid comprises applying an excitation signal having a DC component and an AC component. The AC and DC responses are measured; a corrected DC response is determined using the AC response; and a concentration of the analyte is determined based upon the corrected DC response. Other methods and devices are disclosed.
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Citations
24 Claims
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1. A method for measuring a temperature during a test for determining a concentration of medically significant component of a biological fluid, comprising the steps of:
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a) providing a sensor having at least one measurement electrode adapted to measure the biological fluid; b) applying a first signal to the measurement electrode; c) measuring a first response to the first signal; d) using the first response to produce an indication of a temperature of the biological fluid; e) applying a second signal to the measurement electrode; f) measuring a second response to the second signal to produce an indication of the concentration of the medically significant component; and g) determining a temperature-corrected concentration of the medically significant component based upon the first responses. - View Dependent Claims (2, 3, 4, 5)
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6. A method for measuring a temperature during a test for determining a concentration of a medically significant component of a biological fluid, comprising the steps of:
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a) providing a sensor having at least one measurement electrode adapted to measure the biological fluid; b) applying a first temperature measurement signal having an AC component to the measurement electrode; c) measuring a first AC temperature measurement response to the first temperature measurement signal; d) using the first AC temperature measurement response to produce an indication of a temperature of the biological fluid; e) applying a first concentration measurement signal to the measurement electrode; f) measuring a first concentration measurement response to the first concentration measurement signal to produce an indication of the concentration of the medically significant component; and g) determining a temperature-corrected concentration of the medically significant component based upon the first AC temperature measurement response and the first concentration measurement response. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of accounting for the effect of a temperature variation on a test for a glucose concentration of a biological fluid comprising:
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a) providing a sensor having at least one measurement electrode adapted to measure the biological fluid; b) applying a first temperature measurement test signal having an AC component to the measurement electrode, the first temperature measurement test signal having a first frequency; c) measuring at least a first AC temperature measurement response to the first temperature measurement test signal; d) determining a temperature value of the biological fluid using the first AC temperature measurement response; e) applying a first concentration measurement signal to the measurement electrode; f) measuring at least a first concentration measurement response to the first concentration measurement signal to produce an indication of the glucose concentration of the biological fluid; and g) determining a temperature-corrected glucose concentration of the biological fluid base at least in part upon the temperature value and the first concentration measurement response. - View Dependent Claims (21, 22, 23, 24)
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Specification