Glucose sensor electrode design
AssigneeMedtronic MiniMed, Inc.
InventorsAkhil Srinivasan, Barry P. Pham, Robert C. Mucic, Tyler R. Wong
Life of this patent
Estimating the term…
Abstract
A single flex double-sided electrode useful in a continuous glucose monitoring sensor. In one example, a counter electrode is placed on the back-side of the flex and a work electrode is placed on the top-side of the sensor flex. The electrode is fabricated on physical vapor deposited metal deposited on a base substrate. Adhesion of the electrode to the base substrate is carefully controlled so that the electrode can be processed on the substrate and subsequently removed from the substrate after processing.
Claims22
An analyte sensor apparatus, comprising:
- a working electrode;
- a counter electrode;
- an insulation layer between the working electrode and the counter electrode, wherein:
- the working electrode is spatially separated from the counter electrode by a distance of at least 1 micrometer,
- the working electrode comprises a metal composition having an electroactive surface, and
- the working electrode and the counter electrode are non-interdigitated;
- and
- an analyte sensing layer on the working electrode, wherein the analyte sensing layer detectably alters electrical current at the working electrode in a presence of an analyte.
An analyte sensor apparatus, comprising
- a working electrode on a first side of an insulation layer, the working electrode comprising a metal composition having an electroactive surface;
- a counter electrode on a second side of the insulation layer opposite the first side, wherein the insulation layer is between the counter electrode and the working electrode;
- and
- an analyte sensing layer on the working electrode, wherein the analyte sensing layer detectably alters electrical current at the working electrode in a presence of an analyte.
A method of making an analyte sensor apparatus, comprising:
- depositing a working electrode on a first side of an insulation layer, the working electrode comprising a metal composition having an electroactive surface;
- depositing a counter electrode on a second side of the insulation layer, wherein the insulation layer is between the counter electrode and the working electrode;
- and
- depositing an analyte sensing layer on the working electrode, wherein the analyte sensing layer detectably alters electrical current at the working electrode in the presence of an analyte.
Dependencies are inferred from the claim text.