FI901007A0 - Kahta aallonpituutta käyttävä hengityskaasun pitoisuuden mittauslaite - Google Patents

Kahta aallonpituutta käyttävä hengityskaasun pitoisuuden mittauslaite

Info

Publication number
FI901007A0
FI901007A0 FI901007A FI901007A FI901007A0 FI 901007 A0 FI901007 A0 FI 901007A0 FI 901007 A FI901007 A FI 901007A FI 901007 A FI901007 A FI 901007A FI 901007 A0 FI901007 A0 FI 901007A0
Authority
FI
Finland
Prior art keywords
wavelengths
measuring device
gas concentration
concentration measuring
breath gas
Prior art date
Application number
FI901007A
Other languages
English (en)
Swedish (sv)
Other versions
FI97643C (fi
FI97643B (fi
Inventor
Muneshige Kurahashi
Naoki Kato
Original Assignee
Nihon Kohden 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 Nihon Kohden Corp filed Critical Nihon Kohden Corp
Publication of FI901007A0 publication Critical patent/FI901007A0/fi
Application granted granted Critical
Publication of FI97643B publication Critical patent/FI97643B/fi
Publication of FI97643C publication Critical patent/FI97643C/fi

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—Detecting, measuring or recording 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)
  • Obesity (AREA)
  • Biomedical Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Analytical Chemistry (AREA)
  • Emergency Medicine (AREA)
  • Chemical & Material Sciences (AREA)
  • Physiology (AREA)
  • Pulmonology (AREA)
  • Biophysics (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
FI901007A 1989-03-01 1990-02-28 Kahta aallonpituutta käyttävä hengityskaasun pitoisuuden mittauslaite FI97643C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4664989 1989-03-01
JP1046649A JPH02228943A (ja) 1989-03-01 1989-03-01 ２波長式呼吸ガス濃度測定装置

Publications (3)

Publication Number Publication Date
FI901007A0 true FI901007A0 (fi) 1990-02-28
FI97643B FI97643B (fi) 1996-10-15
FI97643C FI97643C (fi) 1997-01-27

Family

ID=12753162

Family Applications (1)

Application Number Title Priority Date Filing Date
FI901007A FI97643C (fi) 1989-03-01 1990-02-28 Kahta aallonpituutta käyttävä hengityskaasun pitoisuuden mittauslaite

Country Status (5)

Country Link
US (1) US4998018A (fi)
EP (1) EP0385256B1 (fi)
JP (1) JPH02228943A (fi)
DE (1) DE69021100T2 (fi)
FI (1) FI97643C (fi)

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
SE469701B (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
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
EP1054622A4 (en) 1998-02-05 2005-09-07 Healthetech Inc METABOLIC CALORIMETER IMPLEMENTING RESPIRATORY GAS ANALYSIS
US6095986A (en) * 1998-07-28 2000-08-01 Square One Technology, Inc. Disposable anti-fog airway adapter
AU5392499A (en) 1998-08-03 2000-02-28 James R. Mault Method and apparatus for respiratory gas analysis employing measurement of expired gas mass
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
US6468222B1 (en) 1999-08-02 2002-10-22 Healthetech, Inc. Metabolic calorimeter employing respiratory gas analysis
US6899684B2 (en) * 1999-08-02 2005-05-31 Healthetech, Inc. Method of respiratory gas analysis using a metabolic calorimeter
EP1217942A1 (en) 1999-09-24 2002-07-03 Healthetech, Inc. Physiological monitor and associated computation, display and communication unit
JP2004513669A (ja) 1999-10-08 2004-05-13 ヘルセテック　インコーポレイテッド 集積カロリー管理システム
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
EP1283689A4 (en) * 2000-05-25 2005-03-09 Healthetech Inc WEIGHT CONTROL PROCEDURES USING PARAMETERS BASED ON PHYSICAL ACTIVITY
EP1289417A4 (en) * 2000-06-07 2005-06-15 Healthetech Inc BREATH ANALYZER FOR DETECTING THE PRESENCE OF KETONES
JP2004503887A (ja) 2000-06-16 2004-02-05 ヘルセテック　インコーポレイテッド 携帯情報端末用音声認識装置
WO2002021426A1 (en) * 2000-09-07 2002-03-14 Healthetech, Inc. Portable computing apparatus particularly useful in a weight management program
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
WO2003084395A1 (en) * 2002-04-01 2003-10-16 Healthetech, Inc. System and method of determining an individualized drug administration dosage
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
JP2013515963A (ja) * 2009-12-29 2013-05-09 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 治療上の設定に用いられる短縮された光経路のマイクロ分光計を持つガス測定モジュール
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 (6)

* 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
JPS5723843A (en) * 1980-07-21 1982-02-08 Nippon Koden Corp Measuring apparatus of concentration of respiratory gas
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
DE69021100D1 (de) 1995-08-31
JPH02228943A (ja) 1990-09-11
DE69021100T2 (de) 1996-04-18
JPH0346137B2 (fi) 1991-07-15
EP0385256A3 (en) 1991-10-16
EP0385256B1 (en) 1995-07-26
FI97643C (fi) 1997-01-27
FI97643B (fi) 1996-10-15
US4998018A (en) 1991-03-05
EP0385256A2 (en) 1990-09-05

Similar Documents

Publication Publication Date Title
FI901007A0 (fi) Kahta aallonpituutta käyttävä hengityskaasun pitoisuuden mittauslaite
DE3786127D1 (de) Sauerstoffkonzentrationsmessvorrichtung.
FR2599505B1 (fr) Analyseur de gaz photoacoustique
DE69428928D1 (de) Einkanal-Gaskonzentrationsmessvorrichtung
DE69531588D1 (de) Vorrichtung zum Messen der Haemoglobinkonzentration
IT8867724A0 (it) Dispositivo rivelatore di alitosi
NZ235230A (en) Analysing respiratory gases by measuring absorption of light at different wavelengths
BR8606475A (pt) Analisador de gas
IT8720645A0 (it) Strumento di misura per bio e chemioluminescenza o per misure di estinzione.
DK264387A (da) Gas-sensor
FI104217B (fi) Mittauslaite
KR880701876A (ko) 산소농도 측정용 프로브
DE69114096D1 (de) Photoakustische Zelle und photoakustische Messeinrichtung.
BR9200851A (pt) Teste de tracao laboratorial
DE3486120D1 (de) Atemanalysevorrichtung.
DK156976C (da) Maaleanordning til polarografisk blodgasmaaling
DE68909436D1 (de) Elektrochemischer detektor zur erleichterung wiederholter messungen.
DE69019231D1 (de) Vorrichtung zum Messen der Konzentration von NOx.
DK247686D0 (da) Paramagnetisk gasanalysator
GB2194846B (en) An oxygen concentration measuring device
DK573084D0 (da) Apparat til gasanalyse
DE69125664D1 (de) Sauerstoffkonzentrationsdetektor
IT9020624A0 (it) dispositivo per misurare
DK305290D0 (da) Kalibreringsindretning til gasmaaler
DE3670694D1 (de) Gasuntersuchungsgeraet.

Legal Events

Date Code Title Description
BB Publication of examined application
FG Patent granted

Owner name: NIHON KOHDEN CORPORATION

MA Patent expired