DUAL ELECTRODE SYSTEM FOR A CONTINUOUS ANALYTE SENSOR
Disclosed herein are systems and methods for a continuous analyte sensor, such as a continuous glucose sensor. One such system utilizes first and second working electrodes to measure additional analyte or non-analyte related signal. Such measurements may provide a background and/or sensitivity measurement(s) for use in processing sensor data and may be used to trigger events such as digital filtering of data or suspending display of data.
1 - 16 . (canceled)
17 . An implantable continuous glucose sensor comprising:
a substrate;
a first conductive material covering at least a portion of the substrate, wherein the first conductive material comprises a first electrode;
a first insulative material covering at least a portion of the first conductive material;
a second conductive material covering at least a portion of the first insulative material, wherein the second conductive material comprises a second electrode;
a second insulative material covering at least a portion of the second conductive material; and
a third conductive material covering at least a portion of the second insulative material, wherein the third conductive material comprises a third electrode.
18 . The sensor of claim 17 , wherein at least one of the first electrode, second electrode, or third electrode is a working electrode.
19 . The sensor of claim 18 , further comprising a membrane disposed over the working electrode, wherein the membrane comprises a first domain configured to reduce a flux of glucose therethrough, wherein the first domain comprises a product of a reaction of an isocyanate compound with a compound comprising a hydroxyl group and/or a compound comprising an amine group.
20 . The sensor of claim 19 , wherein the membrane further comprises a second domain, wherein the second domain comprises an enzyme configured to react with glucose.
21 . The sensor of claim 17 , wherein at least one of the first electrode, second electrode, or third electrode is a reference electrode.
22 . The sensor of claim 17 , wherein at least of the first electrode, second electrode, or third electrode is a counter electrode.
23 . The sensor of claim 17 , wherein the first electrode is a working electrode, wherein the second electrode is a reference electrode, and wherein the third electrode is a counter electrode.