JPH0346137B2 - - Google Patents

Info

Publication number
JPH0346137B2
JPH0346137B2 JP4664989A JP4664989A JPH0346137B2 JP H0346137 B2 JPH0346137 B2 JP H0346137B2 JP 4664989 A JP4664989 A JP 4664989A JP 4664989 A JP4664989 A JP 4664989A JP H0346137 B2 JPH0346137 B2 JP H0346137B2
Authority
JP
Japan
Prior art keywords
output
infrared
wavelength
absorbed
detection circuit
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 - Lifetime
Application number
JP4664989A
Other languages
English (en)
Japanese (ja)
Other versions
JPH02228943A (ja
Inventor
Muneshige Kurahashi
Naoki Kato
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.)
Nippon Koden Corp
Original Assignee
Nippon Koden Corp
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 Nippon Koden Corp filed Critical Nippon Koden Corp
Priority to JP1046649A priority Critical patent/JPH02228943A/ja
Priority to DE69021100T priority patent/DE69021100T2/de
Priority to EP19900103363 priority patent/EP0385256B1/en
Priority to US07/483,914 priority patent/US4998018A/en
Priority to FI901007A priority patent/FI97643C/fi
Publication of JPH02228943A publication Critical patent/JPH02228943A/ja
Publication of JPH0346137B2 publication Critical patent/JPH0346137B2/ja
Granted 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
    • G01N21/25—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
    • A61B5/08—Measuring devices for evaluating the respiratory organs
    • A61B5/083—Measuring rate of metabolism by using breath test, e.g. measuring rate of oxygen consumption
    • A61B5/0836—Measuring rate of CO2 production
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
    • G01J2001/161—Ratio method, i.e. Im/Ir
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
    • G01J2001/1678—Comparing time separated signals, i.e. chopped
    • G01J2001/1684—Comparing time separated signals, i.e. chopped and selecting also a DC level from the signal
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
    • G01J2001/1678—Comparing time separated signals, i.e. chopped
    • G01J2001/1689—Comparing time separated signals, i.e. chopped one separated signal being processed differently
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/44—Electric circuits
    • G01J2001/444—Compensating; Calibrating, e.g. dark current, temperature drift, noise reduction or baseline correction; Adjusting
    • 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
    • G01N2021/317—Special constructive features
    • 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
    • G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis

Landscapes

  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Medical Informatics (AREA)
  • Public Health (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physiology (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Obesity (AREA)
  • Biophysics (AREA)
  • Veterinary Medicine (AREA)
  • Emergency Medicine (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
JP1046649A 1989-03-01 1989-03-01 ２波長式呼吸ガス濃度測定装置 Granted JPH02228943A (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP1046649A JPH02228943A (ja) 1989-03-01 1989-03-01 ２波長式呼吸ガス濃度測定装置
DE69021100T DE69021100T2 (de) 1989-03-01 1990-02-21 Mit zwei Wellenlängen arbeitende Vorrichtung zur Messung von Gaskonzentrationen in der Atemluft.
EP19900103363 EP0385256B1 (en) 1989-03-01 1990-02-21 Two-wavelength type respiratory gas concentration measuring apparatus
US07/483,914 US4998018A (en) 1989-03-01 1990-02-22 Two-wavelength type respiratory gas concentration measuring apparatus
FI901007A FI97643C (fi) 1989-03-01 1990-02-28 Kahta aallonpituutta käyttävä hengityskaasun pitoisuuden mittauslaite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1046649A JPH02228943A (ja) 1989-03-01 1989-03-01 ２波長式呼吸ガス濃度測定装置

Publications (2)

Publication Number Publication Date
JPH02228943A JPH02228943A (ja) 1990-09-11
JPH0346137B2 true JPH0346137B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1991-07-15

Family

ID=12753162

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1046649A Granted JPH02228943A (ja) 1989-03-01 1989-03-01 ２波長式呼吸ガス濃度測定装置

Country Status (5)

Country Link
US (1) US4998018A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0385256B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPH02228943A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE69021100T2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FI (1) FI97643C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI89210C (fi) * 1990-06-08 1993-08-25 Instrumentarium Oy Foerfarande foer identifiering av gaser
US5159934A (en) * 1990-09-10 1992-11-03 Max Hoberman Miniature sensor for mainstream capnometry/capnography instrumentation
US5261415A (en) * 1991-07-12 1993-11-16 Ciba Corning Diagnostics Corp. CO2 mainstream capnography sensor
US5355893A (en) * 1992-04-06 1994-10-18 Mick Peter R Vital signs monitor
SE9202402L (sv) * 1992-08-21 1993-08-23 Siemens Elema Ab Spektrofotometrisk metod och spektrofotometer foer att utfoera metoden
US5416582A (en) * 1993-02-11 1995-05-16 The United States Of America As Represented By The Department Of Health And Human Services Method and apparatus for localization and spectroscopy of objects using optical frequency modulation of diffusion waves
US5570697A (en) * 1994-07-15 1996-11-05 Vixel Corporation Sensor for analyzing molecular species
SE502950C2 (sv) * 1995-02-27 1996-02-26 Siemens Elema Ab Optisk analysator
US5731581A (en) * 1995-03-13 1998-03-24 Ohmeda Inc. Apparatus for automatic identification of gas samples
US5872359A (en) * 1995-07-27 1999-02-16 American Sterilizer Company Real-time monitor and control system and method for hydrogen peroxide vapor decontamination
US6790178B1 (en) 1999-09-24 2004-09-14 Healthetech, Inc. Physiological monitor and associated computation, display and communication unit
US6309360B1 (en) 1997-03-17 2001-10-30 James R. Mault Respiratory calorimeter
JP3588982B2 (ja) 1997-07-31 2004-11-17 日本光電工業株式会社 赤外線検出装置およびガス分析装置
US6572561B2 (en) 1998-01-16 2003-06-03 Healthetech, Inc. Respiratory calorimeter
CA2320238C (en) 1998-02-05 2011-08-23 James R. Mault Metabolic calorimeter employing respiratory gas analysis
US6095986A (en) * 1998-07-28 2000-08-01 Square One Technology, Inc. Disposable anti-fog airway adapter
JP2002522104A (ja) 1998-08-03 2002-07-23 ジェームズ アール モールト 吐息ガス質量の測定を用いた呼吸ガス分析方法および装置
US6406435B1 (en) 1998-11-17 2002-06-18 James R. Mault Method and apparatus for the non-invasive determination of cardiac output
US6190327B1 (en) * 1999-05-05 2001-02-20 Nonin Medical, Inc. Disposable airway adapter for use with a carbon dioxide detector
US6517496B1 (en) 1999-05-10 2003-02-11 Healthetech, Inc. Airway-based cardiac output monitor and methods for using same
US6277081B1 (en) * 1999-05-18 2001-08-21 Invivo Research, Inc. Anesthetic gas detection apparatus
US6899684B2 (en) * 1999-08-02 2005-05-31 Healthetech, Inc. Method of respiratory gas analysis using a metabolic calorimeter
US6468222B1 (en) * 1999-08-02 2002-10-22 Healthetech, Inc. Metabolic calorimeter employing respiratory gas analysis
US6478736B1 (en) 1999-10-08 2002-11-12 Healthetech, Inc. Integrated calorie management system
US6612306B1 (en) 1999-10-13 2003-09-02 Healthetech, Inc. Respiratory nitric oxide meter
US6629934B2 (en) 2000-02-02 2003-10-07 Healthetech, Inc. Indirect calorimeter for medical applications
US6482158B2 (en) 2000-05-19 2002-11-19 Healthetech, Inc. System and method of ultrasonic mammography
WO2001089365A2 (en) * 2000-05-25 2001-11-29 Healthetech, Inc. Weight control method using physical activity based parameters
US20030208133A1 (en) * 2000-06-07 2003-11-06 Mault James R Breath ketone analyzer
CA2413657A1 (en) 2000-06-16 2001-12-20 Healthetech, Inc. Speech recognition capability for a personal digital assistant
US20020047867A1 (en) * 2000-09-07 2002-04-25 Mault James R Image based diet logging
AU2001296456A1 (en) 2000-09-29 2002-04-08 Healthetech, Inc. Indirect calorimetry system
US20020133378A1 (en) * 2000-10-13 2002-09-19 Mault James R. System and method of integrated calorie management
US6607387B2 (en) 2000-10-30 2003-08-19 Healthetech, Inc. Sensor system for diagnosing dental conditions
US20020055857A1 (en) * 2000-10-31 2002-05-09 Mault James R. Method of assisting individuals in lifestyle control programs conducive to good health
AU2002250237A1 (en) * 2001-03-02 2002-09-19 Healthetech, Inc. A system and method of metabolic rate measurement
US20030023181A1 (en) * 2001-07-26 2003-01-30 Mault James R. Gas analyzer of the fluorescent-film type particularly useful for respiratory analysis
US20030152607A1 (en) * 2002-02-13 2003-08-14 Mault James R. Caloric management system and method with voice recognition
US7291114B2 (en) * 2002-04-01 2007-11-06 Microlife Corporation System and method of determining an individualized drug administration protocol
USD478660S1 (en) 2002-07-01 2003-08-19 Healthetech, Inc. Disposable mask with sanitation insert for a respiratory analyzer
US7212488B2 (en) 2005-03-21 2007-05-01 Hewlett-Packard Development Company, L.P. Method and device enabling capacitive probe-based data storage readout
BR112012015817B1 (pt) 2009-12-29 2021-08-31 Koninklijke Philips N.V Módulo de medição de gás configurado para ser inserido em um circuito respiratório que está em comunicação fluída com uma via aérea de um paciente, e método de análise de gás dentro de um módulo de medição de gás configurado para ser inserido em um circuito respiratório que está em comunicação fluída com uma via aérea de um paciente
CN113029949A (zh) * 2021-03-11 2021-06-25 南京格术光电技术有限公司 介质衰减系数测量装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2520197C2 (de) * 1975-05-06 1983-11-17 Siemens AG, 1000 Berlin und 8000 München Anordnung zur Driftkompensierung eines Gasanalysators
DE2906790C3 (de) * 1979-02-22 1981-12-24 Drägerwerk AG, 2400 Lübeck Verfahren und Anordnung zur Bestimmung der Alkoholkonzentration des Blutes durch Messung der Alkoholkonzentration und der Feuchtigkeit in der Atemluft
JPS58223040A (ja) * 1982-06-22 1983-12-24 Nippon Koden Corp 呼吸気ガス濃度測定装置
US4587427A (en) * 1983-07-28 1986-05-06 Cmi, Inc. Breath analyzer
US4914720A (en) * 1986-12-04 1990-04-03 Cascadia Technology Corporation Gas analyzers

Also Published As

Publication number Publication date
EP0385256B1 (en) 1995-07-26
DE69021100D1 (de) 1995-08-31
FI97643B (fi) 1996-10-15
EP0385256A3 (en) 1991-10-16
FI97643C (fi) 1997-01-27
JPH02228943A (ja) 1990-09-11
DE69021100T2 (de) 1996-04-18
US4998018A (en) 1991-03-05
FI901007A0 (fi) 1990-02-28
EP0385256A2 (en) 1990-09-05

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