WO2006037985A3 - Sensing device - Google Patents

Sensing device Download PDF

Info

Publication number
WO2006037985A3
WO2006037985A3 PCT/GB2005/003799 GB2005003799W WO2006037985A3 WO 2006037985 A3 WO2006037985 A3 WO 2006037985A3 GB 2005003799 W GB2005003799 W GB 2005003799W WO 2006037985 A3 WO2006037985 A3 WO 2006037985A3
Authority
WO
WIPO (PCT)
Prior art keywords
light
sample
sensor
concentration
output signal
Prior art date
Application number
PCT/GB2005/003799
Other languages
French (fr)
Other versions
WO2006037985A2 (en
Inventor
Nagri Rizig Fahmi
Robin Taylor
Original Assignee
Univ Aston
Nagri Rizig Fahmi
Robin Taylor
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 Univ Aston, Nagri Rizig Fahmi, Robin Taylor filed Critical Univ Aston
Publication of WO2006037985A2 publication Critical patent/WO2006037985A2/en
Publication of WO2006037985A3 publication Critical patent/WO2006037985A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
    • 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
    • A61B5/1455—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 optical sensors, e.g. spectral photometrical oximeters

Abstract

A device for determining the concentration of a predetermined substance in a sample, the device comprising:­ (i) a light source adjustable to emit sequentially light at a plurality of wavelengths or a plurality of light sources each capable of emitting light at mutually different wavelengths, and (ii) a sensor which generates an output signal which is dependent on the intensity of light incident thereon, wherein the at least one light source is arranged to direct light towards the sensor via a sample and wherein the device is configured to irradiate the sample sequentially with light of a first and then a second wavelength, optionally followed by additional irradiations at different wavelengths, each irradiation generating an output signal at the sensor, the concentration of the substance in the sample being determined from the set of output signals.
PCT/GB2005/003799 2004-10-01 2005-10-03 Sensing device WO2006037985A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0421793.1 2004-10-01
GB0421793A GB0421793D0 (en) 2004-10-01 2004-10-01 Sensing device

Publications (2)

Publication Number Publication Date
WO2006037985A2 WO2006037985A2 (en) 2006-04-13
WO2006037985A3 true WO2006037985A3 (en) 2006-07-06

Family

ID=33427867

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2005/003799 WO2006037985A2 (en) 2004-10-01 2005-10-03 Sensing device

Country Status (2)

Country Link
GB (1) GB0421793D0 (en)
WO (1) WO2006037985A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2362207A1 (en) * 2010-01-28 2011-08-31 F. Hoffmann-La Roche AG Measuring system and method, in particular for determining blood sugar
DE102011116367A1 (en) * 2011-10-19 2013-04-25 Bluepoint Medical Gmbh & Co. Kg Device for the high-resolution determination of the concentration of substances in fluid media

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5028787A (en) * 1989-01-19 1991-07-02 Futrex, Inc. Non-invasive measurement of blood glucose
EP0663591A1 (en) * 1993-12-16 1995-07-19 I.S.S. (U.S.A.) Inc. Photosensor with multiple light sources
US5507288A (en) * 1994-05-05 1996-04-16 Boehringer Mannheim Gmbh Analytical system for monitoring a substance to be analyzed in patient-blood
US6070093A (en) * 1997-12-02 2000-05-30 Abbott Laboratories Multiplex sensor and method of use

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5028787A (en) * 1989-01-19 1991-07-02 Futrex, Inc. Non-invasive measurement of blood glucose
EP0663591A1 (en) * 1993-12-16 1995-07-19 I.S.S. (U.S.A.) Inc. Photosensor with multiple light sources
US5507288A (en) * 1994-05-05 1996-04-16 Boehringer Mannheim Gmbh Analytical system for monitoring a substance to be analyzed in patient-blood
US5507288B1 (en) * 1994-05-05 1997-07-08 Boehringer Mannheim Gmbh Analytical system for monitoring a substance to be analyzed in patient-blood
US6070093A (en) * 1997-12-02 2000-05-30 Abbott Laboratories Multiplex sensor and method of use

Also Published As

Publication number Publication date
GB0421793D0 (en) 2004-11-03
WO2006037985A2 (en) 2006-04-13

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