SENSOR WITH LAYERED ELECTRODES

摘要

A thin film sensor, such as a glucose sensor, is provided for transcutaneous placement at a selected site within the body of a patient. The sensor includes several sensor layers that include conductive layers and includes a proximal segment defining conductive contacts adapted for electrical connection to a suitable monitor, and a distal segment with sensor electrodes for transcutaneous placement. The sensor electrode layers are disposed generally above each other, for example with the reference electrode above the working electrode and the working electrode above the counter electrode. The electrode layers are separated by dielectric layer.

主权项

1. A planar flexible analyte sensor comprising:
a base layer; a first electrode layer disposed on the base layer and including a first electrode; a first insulative layer disposed on the first electrode layer, wherein said first insulative layer leaves at least a portion of the first electrode exposed; a second electrode layer disposed on the first insulative layer and including a second electrode; and a second insulative layer disposed on the second electrode layer, wherein said second insulative layer leaves at least a portion of the second electrode exposed, wherein each of said base layer, first and second electrode layers, and first and second insulative layers is planar, wherein said exposed portion of the first electrode and said exposed portion of the second electrode are configured to be in direct contact with a patient's bodily fluids for measuring said analyte within the patient's body, and wherein the maximum height of the flexible analyte sensor is about 25 microns.