US 12,336,812 B2
Method and device for providing offset model based calibration for analyte sensor
Erwin Satrya Budiman, Fremont, CA (US)
Assigned to ABBOTT DIABETES CARE INC., Alameda, CA (US)
Filed by ABBOTT DIABETES CARE INC., Alameda, CA (US)
Filed on Oct. 10, 2022, as Appl. No. 17/962,964.
Application 17/962,964 is a continuation of application No. 16/147,087, filed on Sep. 28, 2018, granted, now 11,464,430.
Application 16/147,087 is a continuation of application No. 14/017,195, filed on Sep. 3, 2013, granted, now 10,089,446, issued on Oct. 2, 2018.
Application 14/017,195 is a continuation of application No. 13/550,515, filed on Jul. 16, 2012, granted, now 8,532,935, issued on Sep. 10, 2013.
Application 13/550,515 is a continuation of application No. 12/362,479, filed on Jan. 29, 2009, granted, now 8,224,415, issued on Jul. 17, 2012.
Prior Publication US 2023/0255518 A1, Aug. 17, 2023
Int. Cl. A61B 5/145 (2006.01); A61B 5/1486 (2006.01); A61B 5/1495 (2006.01)
CPC A61B 5/14532 (2013.01) [A61B 5/14865 (2013.01); A61B 5/1495 (2013.01); A61B 2560/0223 (2013.01); Y10T 436/144444 (2015.01)] 20 Claims
OG exemplary drawing
 
1. A method of determining a non-attenuated sensitivity of a glucose sensor positioned in fluid contact with interstitial fluid, comprising:
generating, by the glucose sensor, electrical signals indicative of a glucose level in the interstitial fluid;
obtaining, by a data processing unit operatively coupled with the glucose sensor, a plurality of data points from the signals generated by the glucose sensor, wherein the data processing unit comprises one or more processors, a transceiver to transmit data to a receiving unit, and a memory storing instructions which when executed by the one or more processors enable the data processing unit to perform specified operations;
pairing, by the data processing unit, the plurality of data points with reference data from a reference data source to form a plurality of pairs;
forming, by the data processing unit, a plurality of groups each including one or more of the plurality of pairs;
determining, by the data processing unit, a representative sensitivity of the glucose sensor for each of the plurality of groups, wherein the representative sensitivity of a group is based on corresponding sensitivities of the one or more of the plurality of pairs included in the group;
selecting, by the data processing unit, one or more of the representative sensitivities based on the selected representative sensitivities satisfying one or more criteria;
determining, by the data processing unit, the non-attenuated sensitivity based on a weighted average of the selected representative sensitivities;
applying, by the data processing unit, the determined non-attenuated sensitivity to the plurality of data points obtained from the glucose sensor to estimate a glucose level; and
causing, by the data processing unit, output of an alarm to a user based on the estimated glucose level.