US 11,963,767 B2
Analyte sensor with impedance determination
Sebastian Bohm, San Diego, CA (US); Anna Claire Harley-Trochimczyk, San Diego, CA (US); Daiting Rong, San Diego, CA (US); Rui Ma, San Diego, CA (US); Wenjie Lan, San Diego, CA (US); Minglian Shi, San Diego, CA (US); Disha B. Sheth, Oceanside, CA (US); Vincent P. Crabtree, San Diego, CA (US); and Kamuran Turksoy, Clarksburg, MD (US)
Assigned to Dexcom, Inc., San Diego, CA (US)
Filed by DexCom, Inc., San Diego, CA (US)
Filed on Dec. 27, 2019, as Appl. No. 16/729,021.
Claims priority of provisional application 62/786,116, filed on Dec. 28, 2018.
Claims priority of provisional application 62/786,228, filed on Dec. 28, 2018.
Claims priority of provisional application 62/786,127, filed on Dec. 28, 2018.
Claims priority of provisional application 62/786,166, filed on Dec. 28, 2018.
Claims priority of provisional application 62/786,208, filed on Dec. 28, 2018.
Prior Publication US 2020/0209179 A1, Jul. 2, 2020
Int. Cl. A61B 5/1495 (2006.01); A61B 5/00 (2006.01); A61B 5/0537 (2021.01); A61B 5/145 (2006.01); A61B 5/1473 (2006.01); A61B 5/1486 (2006.01); G01N 27/22 (2006.01); G01N 27/24 (2006.01); G01N 33/487 (2006.01); G01N 27/02 (2006.01)
CPC A61B 5/1495 (2013.01) [A61B 5/0537 (2013.01); A61B 5/14532 (2013.01); A61B 5/14546 (2013.01); A61B 5/1473 (2013.01); A61B 5/1486 (2013.01); A61B 5/14865 (2013.01); A61B 5/6844 (2013.01); G01N 27/221 (2013.01); G01N 27/24 (2013.01); G01N 33/48707 (2013.01); A61B 5/0004 (2013.01); A61B 5/0031 (2013.01); A61B 2560/0223 (2013.01); A61B 2560/0252 (2013.01); A61B 2560/0276 (2013.01); G01N 27/026 (2013.01)] 55 Claims
OG exemplary drawing
 
1. A method of assessing sensor membrane integrity using sensor electronics, comprising:
applying a voltage to an analyte sensor using the sensor electronics;
measuring a response to the voltage applied using the sensor electronics;
determining an impedance parameter of the analyte sensor based on the response measured by the sensor electronics; and
determining a membrane integrity state of the analyte sensor based on the impedance parameter, wherein the determined impedance parameter includes a comparison that determines an existence or an amount of a kickback.