WO2007120381A3 - Analyte sensor - Google Patents

Analyte sensor Download PDF

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Publication number
WO2007120381A3
WO2007120381A3 PCT/US2007/003881 US2007003881W WO2007120381A3 WO 2007120381 A3 WO2007120381 A3 WO 2007120381A3 US 2007003881 W US2007003881 W US 2007003881W WO 2007120381 A3 WO2007120381 A3 WO 2007120381A3
Authority
WO
WIPO (PCT)
Prior art keywords
membranes
devices
hydrophilic polymer
polymer blend
silicone
Prior art date
Application number
PCT/US2007/003881
Other languages
French (fr)
Other versions
WO2007120381A2 (en
Inventor
Robert Boock
Monica Rixman
James H Brauker
James R Petisce
Peter Simpson
Mark Brister
Mark A Tapsak
Victoria Carr-Brendel
Original Assignee
Dexcom Inc
Robert Boock
Monica Rixman
James H Brauker
James R Petisce
Peter Simpson
Mark Brister
Mark A Tapsak
Victoria Carr-Brendel
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
Priority claimed from US11/404,417 external-priority patent/US7613491B2/en
Priority claimed from US11/439,630 external-priority patent/US10022078B2/en
Application filed by Dexcom Inc, Robert Boock, Monica Rixman, James H Brauker, James R Petisce, Peter Simpson, Mark Brister, Mark A Tapsak, Victoria Carr-Brendel filed Critical Dexcom Inc
Publication of WO2007120381A2 publication Critical patent/WO2007120381A2/en
Publication of WO2007120381A3 publication Critical patent/WO2007120381A3/en

Links

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
    • A61B5/14865—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 invasive, e.g. introduced into the body by a catheter or needle or using implanted sensors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • A61B5/0031—Implanted circuitry
    • 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
    • A61B5/41—Detecting, measuring or recording for evaluating the immune or lymphatic systems
    • A61B5/414—Evaluating particular organs or parts of the immune or lymphatic systems
    • A61B5/418—Evaluating particular organs or parts of the immune or lymphatic systems lymph vessels, ducts or nodes

Abstract

The present invention relates generally to membranes utilized with implantable devices, such as devices for the detection of analyte concentrations in a biological sample. More particularly, the invention relates to novel silicone-hydrophilic polymer blend membranes, and to devices and implantable devices including these membranes, for example, a continuous analyte needle-type sensor (34) including a reference electrode (30) helically wound around the working electrode (38), and covered by a membrane system (32) including a silicone-hydrophilic polymer blend membrane.
PCT/US2007/003881 2006-04-14 2007-02-14 Analyte sensor WO2007120381A2 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US11/404,417 US7613491B2 (en) 2002-05-22 2006-04-14 Silicone based membranes for use in implantable glucose sensors
US11/404,417 2006-04-14
US11/439,630 US10022078B2 (en) 2004-07-13 2006-05-23 Analyte sensor
US11/439,630 2006-05-23
US11/503,367 2006-08-10
US11/503,367 US9986942B2 (en) 2004-07-13 2006-08-10 Analyte sensor

Publications (2)

Publication Number Publication Date
WO2007120381A2 WO2007120381A2 (en) 2007-10-25
WO2007120381A3 true WO2007120381A3 (en) 2008-03-27

Family

ID=38610023

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/003881 WO2007120381A2 (en) 2006-04-14 2007-02-14 Analyte sensor

Country Status (2)

Country Link
US (1) US7828728B2 (en)
WO (1) WO2007120381A2 (en)

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