WO2003000127A3 - Method for improving the performance of an analyte monitoring system - Google Patents

Method for improving the performance of an analyte monitoring system Download PDF

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Publication number
WO2003000127A3
WO2003000127A3 PCT/US2002/019693 US0219693W WO03000127A3 WO 2003000127 A3 WO2003000127 A3 WO 2003000127A3 US 0219693 W US0219693 W US 0219693W WO 03000127 A3 WO03000127 A3 WO 03000127A3
Authority
WO
WIPO (PCT)
Prior art keywords
methods
analyte
values
related signals
signals
Prior art date
Application number
PCT/US2002/019693
Other languages
French (fr)
Other versions
WO2003000127A2 (en
Inventor
Shashi Desai
Timothy C Dunn
Matthew J Lesho
Russell O Potts
Janet A Tamada
Charles W Wei
Original Assignee
Cygnus Therapeutic Systems
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cygnus Therapeutic Systems filed Critical Cygnus Therapeutic Systems
Publication of WO2003000127A2 publication Critical patent/WO2003000127A2/en
Publication of WO2003000127A3 publication Critical patent/WO2003000127A3/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/1486—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using enzyme electrodes, e.g. with immobilised oxidase
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/14532—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue for measuring glucose, e.g. by tissue impedance measurement
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/1468—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using chemical or electrochemical methods, e.g. by polarographic means
    • A61B5/1477—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using chemical or electrochemical methods, e.g. by polarographic means non-invasive
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/20—Applying electric currents by contact electrodes continuous direct currents
    • A61N1/30—Apparatus for iontophoresis, i.e. transfer of media in ionic state by an electromotoric force into the body, or cataphoresis

Abstract

The present invention relates to methods to increase the number of analyte-related signals used to provide analyte measurement values, e.g., when two or more analyte-related signals are used to obtain a single analyte measurement value a 'rolling' value based on the two or more signals can be employed. In another aspect, interpolation and/or extrapolation methods are used to estimate unusable, missing or error-associated analyte-related signals. Further, interpolation and extrapolation of values are employed in another aspect of the invention that reduces the incident of failed calibrations. Further, the invention relates to methods, which employ gradients and/or predictive algorithms, to provide an alert related to analyte values exceeding predetermined thresholds. The invention includes the above-described methods, one or more microprocessors programmed to execute the methods, one or more microprocessors programmed to execute the methods and control at least one sensing and/or sampling device, and monitoring systems employing the methods described herein.
PCT/US2002/019693 2001-06-22 2002-06-21 Method for improving the performance of an analyte monitoring system WO2003000127A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US30051101P 2001-06-22 2001-06-22
US60/300,511 2001-06-22
US34229701P 2001-12-20 2001-12-20
US60/342,297 2001-12-20

Publications (2)

Publication Number Publication Date
WO2003000127A2 WO2003000127A2 (en) 2003-01-03
WO2003000127A3 true WO2003000127A3 (en) 2004-02-12

Family

ID=26971825

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/019693 WO2003000127A2 (en) 2001-06-22 2002-06-21 Method for improving the performance of an analyte monitoring system

Country Status (2)

Country Link
US (2) US7011630B2 (en)
WO (1) WO2003000127A2 (en)

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WO2003000127A2 (en) 2003-01-03

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