CA2435550A1 - System for monitoring the concentration of analytes in body fluids - Google Patents

System for monitoring the concentration of analytes in body fluids Download PDF

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Publication number
CA2435550A1
CA2435550A1 CA002435550A CA2435550A CA2435550A1 CA 2435550 A1 CA2435550 A1 CA 2435550A1 CA 002435550 A CA002435550 A CA 002435550A CA 2435550 A CA2435550 A CA 2435550A CA 2435550 A1 CA2435550 A1 CA 2435550A1
Authority
CA
Canada
Prior art keywords
fluid
analytical
concentration
analyte
analytes
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
CA002435550A
Other languages
French (fr)
Other versions
CA2435550C (en
Inventor
Hans-Peter Haar
Hans List
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
F Hoffmann La Roche AG
Original Assignee
F.Hoffmann-La Roche Ag
Hans-Peter Haar
Hans List
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 F.Hoffmann-La Roche Ag, Hans-Peter Haar, Hans List filed Critical F.Hoffmann-La Roche Ag
Publication of CA2435550A1 publication Critical patent/CA2435550A1/en
Application granted granted Critical
Publication of CA2435550C publication Critical patent/CA2435550C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/483—Physical analysis of biological material
    • G01N33/487—Physical analysis of biological material of liquid biological material
    • G01N33/4875—Details of handling test elements, e.g. dispensing or storage, not specific to a particular test method
    • G01N33/48764—Test tape taken off a spool
    • 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
    • A61B5/14503—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 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
    • A61B5/14507—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 specially adapted for measuring characteristics of body fluids other than blood
    • A61B5/1451—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 specially adapted for measuring characteristics of body fluids other than blood for interstitial fluid
    • A61B5/14514—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 specially adapted for measuring characteristics of body fluids other than blood for interstitial fluid using means for aiding extraction of interstitial fluid, e.g. microneedles or suction
    • 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

Abstract

The invention concerns a system for monitoring the concentration of analytes in body fluids, in particular in interstitial fluid and comprises a catheter having an implantable region and an outlet opening for withdrawing fluid in particular body fluid. A first and a second analytical zone are contacted sequentially with fluid from the catheter and undergo a detectable change when an analyte is present. The analytical zones can be contacted manually with fluid and also preferably in an automated fashion by means of a device. A
system according to the invention additionally has an analytical device for analysing the analytical zones in order to determine the concentration of the analyte on the basis of changes caused by the analyte. A further subject matter of the present invention are catheters for use in systems according to the invention as well as magazines containing test zones.
CA002435550A 2001-02-06 2002-02-02 System for monitoring the concentration of analytes in body fluids Expired - Fee Related CA2435550C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10105549A DE10105549A1 (en) 2001-02-06 2001-02-06 System for monitoring the concentration of analytes in body fluids
DE10105549.8 2001-02-06
PCT/EP2002/001091 WO2002062210A1 (en) 2001-02-06 2002-02-02 System, for monitoring the concentration of analytes in body fluids

Publications (2)

Publication Number Publication Date
CA2435550A1 true CA2435550A1 (en) 2002-08-15
CA2435550C CA2435550C (en) 2009-09-29

Family

ID=7673172

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002435550A Expired - Fee Related CA2435550C (en) 2001-02-06 2002-02-02 System for monitoring the concentration of analytes in body fluids

Country Status (10)

Country Link
US (1) US7276027B2 (en)
EP (1) EP1359841B1 (en)
JP (1) JP3765794B2 (en)
CN (2) CN100553560C (en)
AT (1) ATE406834T1 (en)
CA (1) CA2435550C (en)
DE (2) DE10105549A1 (en)
ES (1) ES2312552T3 (en)
HK (1) HK1063595A1 (en)
WO (1) WO2002062210A1 (en)

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Publication number Publication date
US7276027B2 (en) 2007-10-02
HK1063595A1 (en) 2005-01-07
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CN100405968C (en) 2008-07-30

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