Analyte sensor apparatuses having improved electrode configurations and methods for making and using them
First Claim
Patent Images
1. An analyte sensor comprising:
- a plurality of sensor wires having a first end and second end and each arranged in a substantially common orientation, the plurality of sensor wires being electrically conductive and including;
a first sensor wire substantially covered by a first electrically insulating cover, wherein an aperture in the first electrically insulating cover defines a working electrode area;
a second sensor wire substantially covered by a second electrically insulating cover, wherein an aperture in the second electrically insulating cover defines a reference electrode area; and
a third sensor wire substantially covered by a third electrically insulating cover, wherein an aperture in the third electrically insulating cover defines a counter electrode area;
wherein;
the plurality of sensor wires has a first side and a second side opposite to the first side, and wherein the working electrode area is only on the first side and the counter electrode area and reference electrode areas are only on the second side; and
the portion of the first wire exposed at the working electrode area is coated with an analyte sensing layer comprising glucose oxidase.
1 Assignment
0 Petitions
Accused Products
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.
-
Citations
23 Claims
-
1. An analyte sensor comprising:
-
a plurality of sensor wires having a first end and second end and each arranged in a substantially common orientation, the plurality of sensor wires being electrically conductive and including; a first sensor wire substantially covered by a first electrically insulating cover, wherein an aperture in the first electrically insulating cover defines a working electrode area; a second sensor wire substantially covered by a second electrically insulating cover, wherein an aperture in the second electrically insulating cover defines a reference electrode area; and a third sensor wire substantially covered by a third electrically insulating cover, wherein an aperture in the third electrically insulating cover defines a counter electrode area;
wherein;the plurality of sensor wires has a first side and a second side opposite to the first side, and wherein the working electrode area is only on the first side and the counter electrode area and reference electrode areas are only on the second side; and the portion of the first wire exposed at the working electrode area is coated with an analyte sensing layer comprising glucose oxidase. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
-
20. A method for avoiding tissue trauma at a sensor insertion site, comprising:
-
inserting an analyte sensor into the skin of a patient, wherein the analyte sensor includes;
a plurality of sensor wires having a first end and second end and each arranged in a substantially common orientation, the plurality of sensor wires being electrically conductive and including;a first sensor wire substantially covered by a first electrically insulating cover, wherein an aperture in the first electrically insulating cover defines a working electrode area; a second sensor wire substantially covered by a second electrically insulating cover, wherein an aperture in the second electrically insulating cover defines a reference electrode area; and a third sensor wire substantially covered by a third electrically insulating cover, wherein an aperture in the third electrically insulating cover defines a counter electrode area;
wherein;the plurality of sensor wires has a first side and a second side opposite to the first side, and wherein the working electrode area is only on the first side and the counter electrode area and reference electrode areas are only on the second side; and the portion of the first wire exposed at the working electrode area is coated with an analyte sensing layer comprising glucose oxidase. - View Dependent Claims (21, 22, 23)
-
Specification