Dual electrode system for a continuous analyte sensor
First Claim
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1. An analyte sensor configured for insertion into a host for measuring an analyte in the host, the sensor comprising:
- a first working electrode disposed beneath an active enzymatic portion of a membrane;
a second working electrode disposed beneath an inactive-enzymatic or non-enzymatic portion of a membrane; and
a non-conductive material located between the first working electrode and the second working electrode, wherein each of the first working electrode, the second working electrode, and the non-conductive material are configured provide at least two functions selected from the group consisting of electrical conductance, insulative property, structural support, and diffusion barrier.
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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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34 Claims
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1. An analyte sensor configured for insertion into a host for measuring an analyte in the host, the sensor comprising:
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a first working electrode disposed beneath an active enzymatic portion of a membrane;
a second working electrode disposed beneath an inactive-enzymatic or non-enzymatic portion of a membrane; and
a non-conductive material located between the first working electrode and the second working electrode, wherein each of the first working electrode, the second working electrode, and the non-conductive material are configured provide at least two functions selected from the group consisting of electrical conductance, insulative property, structural support, and diffusion barrier. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A glucose sensor configured for insertion into a host for measuring a glucose concentration in the host, the sensor comprising:
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a first working electrode configured to generate a first signal associated with glucose and non-glucose related electroactive compounds, the glucose and non-glucose related electroactive compounds having a first oxidation potential;
a second working electrode configured to generate a second signal associated with noise of the glucose sensor comprising signal contribution due to non-glucose related electroactive compounds with an oxidation potential that substantially overlaps with the first oxidation potential; and
a non-conductive material located between the first working electrode and the second working electrode, wherein each of the first working electrode, the second working electrode, and the non-conductive material are configured provide at least two functions selected from the group consisting of electrical conductance, insulative property, structural support, and diffusion barrier. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34)
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Specification