Electrode systems for electrochemical sensors

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United States of America Patent

PATENT NO RE43399
SERIAL NO

12139305

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Abstract

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The present invention relates generally to systems and methods for improved electrochemical measurement of analytes. The preferred embodiments employ electrode systems including an analyte-measuring electrode for measuring the analyte or the product of an enzyme reaction with the analyte and an auxiliary electrode configured to generate oxygen and/or reduce electrochemical interferants. Oxygen generation by the auxiliary electrode advantageously improves oxygen availability to the enzyme and/or counter electrode; thereby enabling the electrochemical sensors of the preferred embodiments to function even during ischemic conditions. Interferant modification by the auxiliary electrode advantageously renders them substantially non-reactive at the analyte-measuring electrode, thereby reducing or eliminating inaccuracies in the analyte signal due to electrochemical interferants.

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Patent Owner(s)

  • DEXCOM, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Brauker, James H Addison, US 388 135856
Carr-Brendel, Victoria E Edina, US 36 3552
Petisce, James R San Clemente, US 175 37096
Simpson, Peter C Encinitas, US 512 62762

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