TEMPERATURE COMPENSATION FOR AN ANALYTE MEASUREMENT DETERMINED FROM A SPECIFIED SAMPLING TIME DERIVED FROM A SENSED PHYSICAL CHARACTERISTIC OF THE SAMPLE CONTAINING THE ANALYTE

摘要

Various embodiments for a method, systems and meters that allow for a more accurate analyte concentration with a biosensor by determining at least one physical characteristic of the sample and compensating for the effects of ambient temperature with a defined relationship between temperature in the environment, the meter or the biosensor.

主权项

1. An analyte measurement system comprising:
a biosensor having a plurality of electrodes including at least two electrodes with an enzyme disposed thereon; and a meter including:
a microcontroller coupled to a power source, memory and the plurality of electrodes of the biosensor and in which the microcontroller is configured to:
measure ambient temperature proximate the biosensor;drive a signal to the at least two electrodes when a fluid sample with an analyte is deposited proximate the at least two electrodes;measure a signal output from the at least two electrodes during the electrochemical reaction;calculate an uncompensated analyte value from the signal output;adjust the uncompensated analyte value to a final analyte value with a temperature compensation term defined by a relationship in which:
(a) the temperature compensation term increases for increasing uncompensated analyte values; and(b) the temperature compensation term is inversely related to the ambient temperature proximate the biosensor from about 5 degrees Celsius to about 22 degrees Celsius; and(c) the temperature compensation term is about zero for the ambient temperature proximate the biosensor from about 22 degrees Celsius to about 45 degrees Celsius;andannunciate the final analyte value.