CA2330553A1 - Implantable blood glucose sensor system - Google Patents

Implantable blood glucose sensor system Download PDF

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Publication number
CA2330553A1
CA2330553A1 CA002330553A CA2330553A CA2330553A1 CA 2330553 A1 CA2330553 A1 CA 2330553A1 CA 002330553 A CA002330553 A CA 002330553A CA 2330553 A CA2330553 A CA 2330553A CA 2330553 A1 CA2330553 A1 CA 2330553A1
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CA
Canada
Prior art keywords
transponder
sensor
signal
blood glucose
sensor system
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002330553A
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French (fr)
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CA2330553C (en
Inventor
David Eglise
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Individual
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Individual
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
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Application filed by Individual filed Critical Individual
Publication of CA2330553A1 publication Critical patent/CA2330553A1/en
Application granted granted Critical
Publication of CA2330553C publication Critical patent/CA2330553C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • A61B5/0002—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
    • A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/02—Operational features
    • A61B2560/0204—Operational features of power management
    • A61B2560/0214—Operational features of power management of power generation or supply
    • A61B2560/0219—Operational features of power management of power generation or supply of externally powered implanted units

Abstract

An implanted sensing device (1) for monitoring an analyte (e.g. blood-glucose) includes a non-toxic macromolecular material (2) encapsulated within an envelope (3) of bio-compatible semi-permeable membrane.
A sensor (4) responds to change of a physical property (e.g. viscosity) of the material (2) when the analyte contacts the material (2), to signal the change to a measurement circuit (50) that together with the sensor (4) and a transponder (6) are included within the envelope (3). The transponder (6) is interrogated externally of the implanted sensor (1) by an interrogation unit (7) to transmit measurement data for processing and storage. The interrogation signal is utilised within the device (1) to power the circuit (5) and transponder (6) and conveys data to the device for re-calibration or re-setting of signal-datum values to compensate for ageing or drift.
CA002330553A 1998-03-20 1999-03-22 Implantable blood glucose sensor system Expired - Fee Related CA2330553C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB9805896.9A GB9805896D0 (en) 1998-03-20 1998-03-20 Remote analysis system
GB9805896.9 1998-03-20
PCT/GB1999/000900 WO1999048419A1 (en) 1998-03-20 1999-03-22 Implantable blood glucose sensor system

Publications (2)

Publication Number Publication Date
CA2330553A1 true CA2330553A1 (en) 1999-09-30
CA2330553C CA2330553C (en) 2008-07-15

Family

ID=10828882

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002330553A Expired - Fee Related CA2330553C (en) 1998-03-20 1999-03-22 Implantable blood glucose sensor system

Country Status (13)

Country Link
US (1) US6579498B1 (en)
EP (1) EP1063916B1 (en)
AT (1) ATE341991T1 (en)
AU (1) AU752074B2 (en)
CA (1) CA2330553C (en)
DE (1) DE69933547T2 (en)
DK (1) DK1063916T3 (en)
ES (1) ES2277431T3 (en)
GB (1) GB9805896D0 (en)
NZ (1) NZ507666A (en)
PT (1) PT1063916E (en)
WO (1) WO1999048419A1 (en)
ZA (1) ZA200005714B (en)

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Also Published As

Publication number Publication date
DE69933547D1 (en) 2006-11-23
EP1063916A1 (en) 2001-01-03
ES2277431T3 (en) 2007-07-01
DK1063916T3 (en) 2007-02-19
WO1999048419A1 (en) 1999-09-30
GB9805896D0 (en) 1998-05-13
CA2330553C (en) 2008-07-15
AU752074B2 (en) 2002-09-05
US6579498B1 (en) 2003-06-17
EP1063916B1 (en) 2006-10-11
NZ507666A (en) 2003-08-29
AU3043699A (en) 1999-10-18
DE69933547T2 (en) 2007-06-06
ATE341991T1 (en) 2006-11-15
ZA200005714B (en) 2002-10-16
PT1063916E (en) 2007-02-28

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