US 12,239,442 B2
Analyte sensors with reduced interferent signal and methods
Udo Hoss, San Ramon, CA (US); Tianmei Ouyang, Fremont, CA (US); Benjamin J. Feldman, Berkeley, CA (US); and Suyue Qian, Fremont, CA (US)
Assigned to ABBOTT DIABETES CARE INC., Alameda, CA (US)
Filed by ABBOTT DIABETES CARE INC., Alameda, CA (US)
Filed on Jun. 15, 2021, as Appl. No. 17/348,169.
Claims priority of provisional application 63/129,874, filed on Dec. 23, 2020.
Prior Publication US 2022/0192550 A1, Jun. 23, 2022
Int. Cl. A61B 5/1486 (2006.01); A61B 5/145 (2006.01)
CPC A61B 5/14865 (2013.01) [A61B 5/14532 (2013.01); A61B 2562/125 (2013.01)] 39 Claims
OG exemplary drawing
 
1. An analyte sensor comprising: a working electrode including a working electrode layer having an elongate body comprising a proximal end and a distal end, the working electrode layer including a first active working electrode area, a second electrode portion, and at least one channel or well formed in the working electrode layer and electrically separating the first active working electrode area and the second electrode portion; and one or more additional electrodes, wherein the one or more additional electrodes comprise a counter electrode, a reference electrode, or both; and wherein the first active working electrode area comprises at least one sensing spot with at least one analyte responsive enzyme disposed thereupon and configured to generate a signal associated with an analyte of interest, wherein the second electrode portion is configured to reduce an overall interference to the signal attributed to one or more interferents.