ANALYTE SENSOR APPARATUSES HAVING IMPROVED ELECTRODE CONFIGURATIONS AND METHODS FOR MAKING AND USING THEM
First Claim
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1. An analyte sensor apparatus for implantation within a mammal, the analyte sensor apparatus comprising:
- an elongated base layer;
a conductive layer disposed on the base layer and comprising a reference electrode, a working electrode and a counter electrode;
an analyte sensing layer disposed on the conductive layer;
an analyte modulating layer disposed on the analyte sensing layer, wherein the analyte modulating layer comprises a composition that modulates the diffusion of an analyte diffusing through the analyte modulating layer; and
a cover layer disposed on the analyte sensor apparatus, wherein the cover layer comprises an aperture positioned on the cover layer so as to facilitate;
an analyte present in the mammal contacting and diffusing through the analyte modulating layer; and
contacting the analyte sensing layer.
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Abstract
Embodiments of the invention provide analyte sensors having optimized elements and/or configurations of elements as well as methods for making and using such sensors. Typical embodiments of the invention include glucose sensors used in the management of diabetes.
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Citations
55 Claims
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1. An analyte sensor apparatus for implantation within a mammal, the analyte sensor apparatus comprising:
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an elongated base layer; a conductive layer disposed on the base layer and comprising a reference electrode, a working electrode and a counter electrode; an analyte sensing layer disposed on the conductive layer; an analyte modulating layer disposed on the analyte sensing layer, wherein the analyte modulating layer comprises a composition that modulates the diffusion of an analyte diffusing through the analyte modulating layer; and a cover layer disposed on the analyte sensor apparatus, wherein the cover layer comprises an aperture positioned on the cover layer so as to facilitate; an analyte present in the mammal contacting and diffusing through the analyte modulating layer; and contacting the analyte sensing layer. - 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, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 53, 54, 55)
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49. A method of detecting whether a sensor is sufficiently hydrated for analyte detection, comprising calculating an open circuit potential value between at least two electrodes of the sensor;
- and comparing the open circuit potential value against a threshold to determine if the sensor sufficiently hydrated for analyte detection.
- View Dependent Claims (50, 51, 52)
Specification