Patent ID: 11957463
Assignee: ABBOTT DIABETES CARE INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 11:
12. A system for improving accuracy of an analyte sensor by accounting for a difference caused by a physiological time lag between a blood glucose value and an interstitial fluid glucose value, the system comprising:
an analyte sensor configured to generate raw output comprising a plurality of data sets;
at least one processing unit; and
memory coupled to the at least one processing unit, wherein the memory is configured to store instructions that, when executed by the at least one processing unit, cause the at least one processing unit to preprocess the plurality of data sets, obtain an initial calibration of the analyte sensor, and determine an estimated blood glucose value from the preprocessed plurality of data sets using the initial calibration of the analyte sensor,
wherein the estimated blood glucose value is based on one or more interstitial fluid glucose proportionality coefficients and a time derivative of the raw output, wherein the estimated blood glucose value is indicative of a real-time estimated blood glucose value.