DUAL ELECTRODE SYSTEM FOR A CONTINUOUS ANALYTE SENSOR
First Claim
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1. A sensor configured and arranged for insertion into a host and for continuously detecting glucose in the host, the sensor comprising:
- a first working electrode configured to generate a first signal having a first noise component related to a noise-causing species, the first working electrode having a first surface area; and
a second working electrode configured to generate a second signal having a second noise component related to the noise-causing species, the second working electrode having a second surface area;
wherein the first working electrode and the second working electrode are configured and arranged to integrate the first noise component and the second noise component about a circumference of the sensor.
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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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Citations
20 Claims
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1. A sensor configured and arranged for insertion into a host and for continuously detecting glucose in the host, the sensor comprising:
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a first working electrode configured to generate a first signal having a first noise component related to a noise-causing species, the first working electrode having a first surface area; and a second working electrode configured to generate a second signal having a second noise component related to the noise-causing species, the second working electrode having a second surface area; wherein the first working electrode and the second working electrode are configured and arranged to integrate the first noise component and the second noise component about a circumference of the sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A continuous glucose sensor configured and arranged for insertion into a host and for detecting glucose in the host, the sensor comprising:
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a first working electrode comprising a first electroactive surface disposed beneath an active enzymatic portion of a sensor membrane, wherein the first electroactive surface is configured to measure a measurable species; a second working electrode comprising a second electroactive surface disposed beneath at least one of an inactive enzymatic portion of the sensor membrane and a non-enzymatic portion of the sensor membrane, wherein the second electroactive surface is configured to measure said measurable species, and wherein the first electroactive surface and the second electroactive surface are spaced within a crosstalk distance of the measurable species; and a physical diffusion barrier disposed between the first working electrode and the second working electrode, wherein the physical diffusion barrier is configured and arranged such that there is substantially no signal associated with crosstalk. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification