US 11,892,426 B2
Devices, systems, and methods to compensate for effects of temperature on implantable sensors
Michael J. Estes, Poway, CA (US); Jennifer Blackwell, San Diego, CA (US); Sebastian Bohm, San Diego, CA (US); Robert J. Boock, Carlsbad, CA (US); Jack Pryor, Ladera Ranch, CA (US); Peter C. Simpson, Cardiff, CA (US); and Matthew D. Wightlin, San Diego, CA (US)
Assigned to Dexcom, Inc., San Diego, CA (US)
Filed by DexCom, Inc., San Diego, CA (US)
Filed on Jan. 29, 2021, as Appl. No. 17/163,083.
Application 17/163,083 is a continuation of application No. 14/567,293, filed on Dec. 11, 2014, granted, now 10,908,114.
Application 14/567,293 is a continuation of application No. 13/747,746, filed on Jan. 23, 2013, granted, now 10,598,627, issued on Mar. 24, 2020.
Claims priority of provisional application 61/666,618, filed on Jun. 29, 2012.
Prior Publication US 2021/0231602 A1, Jul. 29, 2021
Int. Cl. G01N 27/403 (2006.01); A61B 5/145 (2006.01); A61B 5/1486 (2006.01); A61B 5/1495 (2006.01)
CPC G01N 27/403 (2013.01) [A61B 5/1495 (2013.01); A61B 5/14532 (2013.01); A61B 5/14865 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A device for continuous in vivo measurement of glucose concentrations in a host, comprising:
a first electrode;
a second electrode;
a first membrane located over at least a portion of the first electrode, the first membrane comprising an enzyme configured to catalyze a reaction of glucose and oxygen from a biological fluid in contact with the first membrane in vivo, the first membrane having a first temperature coefficient;
a second membrane located over at least a portion of the second electrode, the second membrane having a second temperature coefficient different than the first temperature coefficient; and
electronic circuitry operatively connected to the first electrode and to the second electrode, the electronic circuitry being configured to generate a signal representative of a concentration of glucose in the host and configured to measure at least one of an in vivo temperature or a change in temperature in vivo, the measuring using the first membrane and the second membrane.