Title:
電気化学センサーに用いる電極システム
Document Type and Number:
Japanese Patent JP2007500336
Kind Code:
A
Abstract:
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.
Inventors:
Peter Sea Simpson
James Earl Pettis
Victoria Carl-Brendel
James H Broker
James Earl Pettis
Victoria Carl-Brendel
James H Broker
Application Number:
JP2006521312A
Publication Date:
January 11, 2007
Filing Date:
July 21, 2004
Export Citation:
Assignee:
Dexcom Incorporated
International Classes:
G01N27/327; G01N27/26; G01N27/30; G01N27/416; G01N
Domestic Patent References:
| JPS6367560A | 1988-03-26 | |||
| JPS6258154A | 1987-03-13 | |||
| JP2001506366A | 2001-05-15 | |||
| JPS6287135A | 1987-04-21 | |||
| JPS57118152A | 1982-07-22 | |||
| JPS56145341A | 1981-11-12 |
Foreign References:
| EP0539625A1 | 1993-05-05 |
Attorney, Agent or Firm:
Masatake Shiga
Takashi Watanabe
Yasuhiko Murayama
Shinya Mitsuhiro
Takashi Watanabe
Yasuhiko Murayama
Shinya Mitsuhiro