The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 15, 2002
Filed:
Nov. 28, 2000
W. Kenneth Ward, Portland, OR (US);
Eric S. Wilgus, Portland, OR (US);
Legacy Good Samaritan Hospital and Medical Center, Portland, OR (US);
Abstract
The invention provides an electrochemical sensor system for measuring analyte concentrations in a fluid sample. The invention is particularly useful for measuring analytes such as glucose in a patient. An implantable glucose sensor includes a disc-shaped sensor body containing multiple anodes on opposing sides of the sensor body. Electrodes including an anode and a cathode are connected to a transmitter which transmits radio signals to an external receiver and computer where data is processed to yield glucose concentration figures. An enzyme layer coating the anodes specifically reacts with glucose to increase signals generated by the anodes in response to the presence of glucose. In an alternate embodiment, some of the anodes are coated with the enzyme to generate a first signal, and other anodes that are not coated generate a second signal for comparison with the first signal to eliminate effects of interfering substances on the accuracy of the glucose measurement.