Chemistry: electrical and wave energy – Apparatus – Electrolytic
Reexamination Certificate
2005-07-15
2008-12-09
Weber, Jon P (Department: 1657)
Chemistry: electrical and wave energy
Apparatus
Electrolytic
C204S403100, C435S014000
Reexamination Certificate
active
07462264
ABSTRACT:
A small diameter flexible electrode designed for subcutaneous in vivo amperometric monitoring of glucose is described. The electrode is designed to allow “one-point” in vivo calibration, i.e., to have zero output current at zero glucose concentration, even in the presence of other electroreactive species of serum or blood. The electrode is preferably layered, with the layers serially deposited within a recess upon the tip of a polyamide insulated gold wire. A first glucose concentration-to-current transducing layer can be overcoated with an electrically insulating and glucose flux limiting layer (second layer) on which, optionally, an immobilized interference-eliminating horseradish peroxidase based film is deposited. An outer layer is preferably biocompatible.
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Heller Adam
Pishko Michael V.
Abbott Diabetes Care Inc.
Baba Edward J.
Bozicevic Field & Francis LLP
Martin Paul C.
Weber Jon P
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