Dual electrode system for a continuous analyte sensor
First Claim
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1. An analyte sensor for measuring an analyte in a host, the sensor comprising:
- an elongated body comprising a first wire and a second wire, wherein the first wire comprises a first working electrode comprising a first electroactive surface and the second wire comprises a second working electrode comprising a second electroactive surface, wherein the first wire is substantially parallel to the second wire, wherein the first and second wires are spaced apart from a single longitudinal axis by an insulator and are embedded within the insulator, wherein the insulator comprises a first window that exposes the first electroactive surface area of the first electrode, wherein the insulator comprises a second window that exposes the second electroactive surface area of the second electrode, wherein the first electroactive surface area is disposed beneath an active enzymatic portion of a membrane, wherein the second electroactive surface area is disposed beneath an inactive-enzymatic or non-enzymatic portion of a membrane, wherein the first electroactive surface area and the second electroactive surface area are offset along an axis parallel to the first and second wires.
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Abstract
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.
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10 Claims
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1. An analyte sensor for measuring an analyte in a host, the sensor comprising:
an elongated body comprising a first wire and a second wire, wherein the first wire comprises a first working electrode comprising a first electroactive surface and the second wire comprises a second working electrode comprising a second electroactive surface, wherein the first wire is substantially parallel to the second wire, wherein the first and second wires are spaced apart from a single longitudinal axis by an insulator and are embedded within the insulator, wherein the insulator comprises a first window that exposes the first electroactive surface area of the first electrode, wherein the insulator comprises a second window that exposes the second electroactive surface area of the second electrode, wherein the first electroactive surface area is disposed beneath an active enzymatic portion of a membrane, wherein the second electroactive surface area is disposed beneath an inactive-enzymatic or non-enzymatic portion of a membrane, wherein the first electroactive surface area and the second electroactive surface area are offset along an axis parallel to the first and second wires. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
Specification