WO2007037989A3 - Flexible sensor apparatus - Google Patents

Flexible sensor apparatus Download PDF

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Publication number
WO2007037989A3
WO2007037989A3 PCT/US2006/035731 US2006035731W WO2007037989A3 WO 2007037989 A3 WO2007037989 A3 WO 2007037989A3 US 2006035731 W US2006035731 W US 2006035731W WO 2007037989 A3 WO2007037989 A3 WO 2007037989A3
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
cannula
patient
mounting base
flexible
Prior art date
Application number
PCT/US2006/035731
Other languages
French (fr)
Other versions
WO2007037989A2 (en
Inventor
Rajiv Shah
Rebecca K Gottlieb
Eric A Larson
Original Assignee
Medtronic Minimed Inc
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 Medtronic Minimed Inc filed Critical Medtronic Minimed Inc
Priority to JP2008532281A priority Critical patent/JP2009508639A/en
Priority to CA2622526A priority patent/CA2622526C/en
Priority to EP06803542A priority patent/EP1926420A2/en
Publication of WO2007037989A2 publication Critical patent/WO2007037989A2/en
Publication of WO2007037989A3 publication Critical patent/WO2007037989A3/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
    • A61B5/145—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
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
    • A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
    • A61B5/6848—Needles
    • A61B5/6849—Needles in combination with a needle set
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3403—Needle locating or guiding means
    • A61B2017/3405—Needle locating or guiding means using mechanical guide means
    • A61B2017/3407—Needle locating or guiding means using mechanical guide means including a base for support on the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/16—Details of sensor housings or probes; Details of structural supports for sensors
    • A61B2562/164—Details of sensor housings or probes; Details of structural supports for sensors the sensor is mounted in or on a conformable substrate or carrier

Abstract

A flexible mounting base to hold a sensor at an infusion site, the sensor being a removable in vivo sensor for monitoring analyte concentration level in a patient, such as blood glucose (BG) level. The mounting base comprises a flexible adhesive that anchors the flexible sensor set at an infusion site to provide stability for the sensor set in a convenient and comfortable manner. Placement of the mounting base onto the patient's skin causes the insertion needle to pierce the skin for transcutaneous placement of the cannula with the sensor therein. The insertion needle can then be withdrawn to leave the cannula and sensor at the selected insertion position, with the distal segment of the sensor being exposed to patient extracellular fluid via apertures formed in the cannula.
PCT/US2006/035731 2005-09-23 2006-09-13 Flexible sensor apparatus WO2007037989A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2008532281A JP2009508639A (en) 2005-09-23 2006-09-13 Flexible sensor device
CA2622526A CA2622526C (en) 2005-09-23 2006-09-13 Flexible sensor apparatus
EP06803542A EP1926420A2 (en) 2005-09-23 2006-09-13 Flexible sensor apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/234,722 2005-09-23
US11/234,722 US9072476B2 (en) 2005-09-23 2005-09-23 Flexible sensor apparatus

Publications (2)

Publication Number Publication Date
WO2007037989A2 WO2007037989A2 (en) 2007-04-05
WO2007037989A3 true WO2007037989A3 (en) 2007-11-01

Family

ID=37895028

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/035731 WO2007037989A2 (en) 2005-09-23 2006-09-13 Flexible sensor apparatus

Country Status (5)

Country Link
US (1) US9072476B2 (en)
EP (1) EP1926420A2 (en)
JP (1) JP2009508639A (en)
CA (1) CA2622526C (en)
WO (1) WO2007037989A2 (en)

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US9414777B2 (en) 2004-07-13 2016-08-16 Dexcom, Inc. Transcutaneous analyte sensor

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