DE69721732D1 - Vorrichtung zur multispektralen analyse bei der nichtinvasiven nir-spektroskopie - Google Patents

Vorrichtung zur multispektralen analyse bei der nichtinvasiven nir-spektroskopie

Info

Publication number
DE69721732D1
DE69721732D1 DE69721732T DE69721732T DE69721732D1 DE 69721732 D1 DE69721732 D1 DE 69721732D1 DE 69721732 T DE69721732 T DE 69721732T DE 69721732 T DE69721732 T DE 69721732T DE 69721732 D1 DE69721732 D1 DE 69721732D1
Authority
DE
Germany
Prior art keywords
sample
spectral analysis
nir spectroscopy
wavelengths
concentration
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.)
Expired - Fee Related
Application number
DE69721732T
Other languages
English (en)
Other versions
DE69721732T2 (de
Inventor
Gamal Khalil
F Malin
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.)
Sensys Medical Inc
Original Assignee
Sensys Medical 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 Sensys Medical Inc filed Critical Sensys Medical Inc
Publication of DE69721732D1 publication Critical patent/DE69721732D1/de
Application granted granted Critical
Publication of DE69721732T2 publication Critical patent/DE69721732T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • A61B5/1455—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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/14—Devices for taking samples of blood ; Measuring characteristics of blood in vivo, e.g. gas concentration within the blood, pH-value of blood
    • 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
    • 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
    • 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
    • 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
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3577—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing liquids, e.g. polluted water
    • 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
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/359—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
DE69721732T 1996-02-02 1997-01-31 Vorrichtung zur multispektralen analyse bei der nichtinvasiven nir-spektroskopie Expired - Fee Related DE69721732T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US596409 1996-02-02
US08/596,409 US5747806A (en) 1996-02-02 1996-02-02 Method and apparatus for multi-spectral analysis in noninvasive nir spectroscopy
PCT/US1997/001370 WO1997028438A1 (en) 1996-02-02 1997-01-31 Method and apparatus for multi-spectral analysis in noninvasive nir spectroscopy

Publications (2)

Publication Number Publication Date
DE69721732D1 true DE69721732D1 (de) 2003-06-12
DE69721732T2 DE69721732T2 (de) 2004-03-18

Family

ID=24387178

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69721732T Expired - Fee Related DE69721732T2 (de) 1996-02-02 1997-01-31 Vorrichtung zur multispektralen analyse bei der nichtinvasiven nir-spektroskopie

Country Status (16)

Country Link
US (2) US5747806A (de)
EP (1) EP0877926B1 (de)
JP (2) JPH11506207A (de)
KR (1) KR19990082236A (de)
CN (1) CN1101934C (de)
AT (1) ATE239910T1 (de)
BR (1) BR9707246A (de)
CA (1) CA2244111C (de)
CZ (1) CZ239298A3 (de)
DE (1) DE69721732T2 (de)
DK (1) DK0877926T3 (de)
HK (1) HK1019635A1 (de)
NZ (1) NZ331158A (de)
PL (1) PL184609B1 (de)
TW (1) TW426802B (de)
WO (1) WO1997028438A1 (de)

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US5747806A (en) 1998-05-05
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CA2244111C (en) 2003-04-08
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TW426802B (en) 2001-03-21
NZ331158A (en) 1999-10-28
PL184609B1 (pl) 2002-11-29
JPH11506207A (ja) 1999-06-02
AU1844997A (en) 1997-08-22
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US5945676A (en) 1999-08-31
DE69721732T2 (de) 2004-03-18
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