DE69431497T2 - Verfahren und Vorrichtung zur Messung eines streuenden Mediums - Google Patents

Verfahren und Vorrichtung zur Messung eines streuenden Mediums

Info

Publication number
DE69431497T2
DE69431497T2 DE69431497T DE69431497T DE69431497T2 DE 69431497 T2 DE69431497 T2 DE 69431497T2 DE 69431497 T DE69431497 T DE 69431497T DE 69431497 T DE69431497 T DE 69431497T DE 69431497 T2 DE69431497 T2 DE 69431497T2
Authority
DE
Germany
Prior art keywords
measuring
scattering medium
scattering
medium
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
DE69431497T
Other languages
English (en)
Other versions
DE69431497D1 (de
Inventor
Yutaka Tsuchiya
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.)
Hamamatsu Photonics KK
Original Assignee
Hamamatsu Photonics KK
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 Hamamatsu Photonics KK filed Critical Hamamatsu Photonics KK
Publication of DE69431497D1 publication Critical patent/DE69431497D1/de
Application granted granted Critical
Publication of DE69431497T2 publication Critical patent/DE69431497T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
    • 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
    • A61B2562/02—Details of sensors specially adapted for in-vivo measurements
    • A61B2562/0233—Special features of optical sensors or probes classified in A61B5/00
    • A61B2562/0242—Special features of optical sensors or probes classified in A61B5/00 for varying or adjusting the optical path length in the tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7235—Details of waveform analysis
    • A61B5/7242—Details of waveform analysis using integration
DE69431497T 1993-06-02 1994-06-02 Verfahren und Vorrichtung zur Messung eines streuenden Mediums Expired - Fee Related DE69431497T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP13221493 1993-06-02
JP08673794A JP3577335B2 (ja) 1993-06-02 1994-04-25 散乱吸収体計測方法及び装置

Publications (2)

Publication Number Publication Date
DE69431497D1 DE69431497D1 (de) 2002-11-14
DE69431497T2 true DE69431497T2 (de) 2003-03-13

Family

ID=26427826

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69431497T Expired - Fee Related DE69431497T2 (de) 1993-06-02 1994-06-02 Verfahren und Vorrichtung zur Messung eines streuenden Mediums

Country Status (4)

Country Link
US (1) US5529065A (de)
EP (1) EP0627619B1 (de)
JP (1) JP3577335B2 (de)
DE (1) DE69431497T2 (de)

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US7047054B2 (en) * 1999-03-12 2006-05-16 Cas Medical Systems, Inc. Laser diode optical transducer assembly for non-invasive spectrophotometric blood oxygenation monitoring
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WO2002040971A1 (en) * 2000-11-15 2002-05-23 Bang & Olufsen Medicom A/S Method and apparatus for determination of optical parameters of turbid media and use thereof
JP4090699B2 (ja) * 2001-04-02 2008-05-28 株式会社日立製作所 生体光計測装置
AU2002361113A1 (en) * 2001-12-26 2003-07-15 Hamamatsu Photonics K.K. Optical analysis method for heterogeneous medium
US7072701B2 (en) 2002-07-26 2006-07-04 Cas Medical Systems, Inc. Method for spectrophotometric blood oxygenation monitoring
US20050049468A1 (en) * 2003-09-03 2005-03-03 Sven-Erik Carlson Increasing the performance of an optical pulsoximeter
GB2424269A (en) * 2004-04-01 2006-09-20 Robert Michael Lipman Control apparatus
WO2006020292A2 (en) * 2004-07-20 2006-02-23 Prescient Medical, Inc. Systems and methods for medical interventional optical monitoring with molecular filters
US8396526B2 (en) * 2005-05-12 2013-03-12 Cas Medical Systems, Inc. Method for spectrophotometric blood oxygenation monitoring
US7952692B2 (en) * 2006-12-12 2011-05-31 Orsense Ltd. Method and apparatus for determination of analyte concentration
JP4835428B2 (ja) * 2006-12-27 2011-12-14 株式会社日立製作所 プローブ装置
US20080177163A1 (en) * 2007-01-19 2008-07-24 O2 Medtech, Inc. Volumetric image formation from optical scans of biological tissue with multiple applications including deep brain oxygenation level monitoring
US8346327B2 (en) * 2007-03-09 2013-01-01 Covidien Lp Method for identification of sensor site by local skin spectrum data
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US7961305B2 (en) * 2007-10-23 2011-06-14 The Curators Of The University Of Missouri Optical device components
JP4957595B2 (ja) * 2008-03-12 2012-06-20 株式会社島津製作所 吸光度原点標準器及びその使用方法
WO2009120600A2 (en) * 2008-03-25 2009-10-01 The Curators Of The University Of Missouri Method and system for non-invasive blood glucose detection utilizing spectral data of one or more components other than glucose
EP2299900B1 (de) 2008-05-22 2017-06-07 St. Louis Medical Devices, Inc. Verfahren und system für den nichtinvasiven optischen blutzuckernachweis mit spektraldatenanalyse
US8391942B2 (en) * 2008-10-06 2013-03-05 Cas Medical Systems, Inc. Method and apparatus for determining cerebral desaturation in patients undergoing deep hypothermic circulatory arrest
US20100105998A1 (en) * 2008-10-28 2010-04-29 Cas Medical Systems, Inc. Method and apparatus for spectrophotometric based oximetry of spinal tissue
EP2413784A4 (de) * 2009-04-01 2014-01-22 Univ Missouri Optische spektroskopievorrichtung für nichtinvasive blutzuckererkennung und verwendungsverfahren dafür
WO2012050847A2 (en) 2010-09-28 2012-04-19 Masimo Corporation Depth of consciousness monitor including oximeter
US9775545B2 (en) 2010-09-28 2017-10-03 Masimo Corporation Magnetic electrical connector for patient monitors
JP2013103094A (ja) * 2011-11-16 2013-05-30 Sony Corp 測定装置、測定方法、プログラム及び記録媒体
US9907494B2 (en) * 2012-04-18 2018-03-06 Hutchinson Technology Incorporated NIRS device with optical wavelength and path length correction
FR2993446B1 (fr) * 2012-07-20 2014-07-11 Cosm O Procede de mesure et d'evaluation de caracteristiques optiques d'un materiau diffusant et son dispositif de mise en oeuvre
US9848808B2 (en) 2013-07-18 2017-12-26 Cas Medical Systems, Inc. Method for spectrophotometric blood oxygenation monitoring
RU2533538C1 (ru) * 2013-08-19 2014-11-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Тверской государственный университет" Способ раздельного определения вероятностей поглощения и рассеяния фотонов на единицу пути в твердых оптических материалах
WO2016057553A1 (en) 2014-10-07 2016-04-14 Masimo Corporation Modular physiological sensors
CN106092972A (zh) * 2015-04-27 2016-11-09 松下知识产权经营株式会社 光传感装置

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US5277181A (en) * 1991-12-12 1994-01-11 Vivascan Corporation Noninvasive measurement of hematocrit and hemoglobin content by differential optical analysis
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Also Published As

Publication number Publication date
EP0627619B1 (de) 2002-10-09
JP3577335B2 (ja) 2004-10-13
JPH0749307A (ja) 1995-02-21
DE69431497D1 (de) 2002-11-14
EP0627619A1 (de) 1994-12-07
US5529065A (en) 1996-06-25

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee