CA2064892A1 - Capnographe stabilise optiquement sans obturateur - Google Patents

Capnographe stabilise optiquement sans obturateur

Info

Publication number
CA2064892A1
CA2064892A1 CA002064892A CA2064892A CA2064892A1 CA 2064892 A1 CA2064892 A1 CA 2064892A1 CA 002064892 A CA002064892 A CA 002064892A CA 2064892 A CA2064892 A CA 2064892A CA 2064892 A1 CA2064892 A1 CA 2064892A1
Authority
CA
Canada
Prior art keywords
infrared
detectors
detector
signal
filter
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.)
Abandoned
Application number
CA002064892A
Other languages
English (en)
Inventor
Daniel S. Goldberger
James R. Braig
Mark Yelderman
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.)
Ethicon Inc
Original Assignee
Individual
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
Priority claimed from US07/522,177 external-priority patent/US5081998A/en
Priority claimed from US07/522,208 external-priority patent/US5095913A/en
Application filed by Individual filed Critical Individual
Publication of CA2064892A1 publication Critical patent/CA2064892A1/fr
Abandoned legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3504Investigating 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/08Measuring devices for evaluating the respiratory organs
    • A61B5/083Measuring rate of metabolism by using breath test, e.g. measuring rate of oxygen consumption
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00Photometry, e.g. photographic exposure meter
    • G01J1/10Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/20Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle
    • G01J1/22Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using a variable element in the light-path, e.g. filter, polarising means
    • G01J1/24Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using a variable element in the light-path, e.g. filter, polarising means using electric radiation detectors
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/10Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
    • G01J5/12Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using thermoelectric elements, e.g. thermocouples
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/314Investigating 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
    • G01N2021/3166Investigating 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 using separate detectors and filters
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00Features of devices classified in G01N21/00
    • G01N2201/12Circuits of general importance; Signal processing
    • G01N2201/126Microprocessor processing

Landscapes

  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physiology (AREA)
  • Obesity (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Public Health (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Emergency Medicine (AREA)
  • Chemical & Material Sciences (AREA)
  • Biophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Pulmonology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Veterinary Medicine (AREA)
  • Immunology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Measuring Fluid Pressure (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Radiation Pyrometers (AREA)
CA002064892A 1989-09-01 1990-08-27 Capnographe stabilise optiquement sans obturateur Abandoned CA2064892A1 (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US40195289A 1989-09-01 1989-09-01
US401,952 1989-09-01
US522,208 1990-05-11
US522,177 1990-05-11
US07/522,177 US5081998A (en) 1989-09-01 1990-05-11 Optically stabilized infrared energy detector
US07/522,208 US5095913A (en) 1989-09-01 1990-05-11 Shutterless optically stabilized capnograph
PCT/US1990/004875 WO1991003204A1 (fr) 1989-09-01 1990-08-27 Capnographe optiquement stabilise sans obturateur

Publications (1)

Publication Number Publication Date
CA2064892A1 true CA2064892A1 (fr) 1991-03-02

Family

ID=27410482

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002064892A Abandoned CA2064892A1 (fr) 1989-09-01 1990-08-27 Capnographe stabilise optiquement sans obturateur

Country Status (7)

Country Link
EP (1) EP0489840A4 (fr)
JP (1) JPH05500112A (fr)
AU (2) AU637827B2 (fr)
CA (1) CA2064892A1 (fr)
GR (1) GR1001000B (fr)
PT (1) PT95178A (fr)
WO (1) WO1991003204A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5095900A (en) * 1991-01-22 1992-03-17 Mine Safety Appliances Company Respiration monitor
FI934871A0 (fi) * 1993-11-03 1993-11-03 Instrumentarium Oy Foerfarande och anordning foer kompensering av vaermekrypningen hos en gasanalysator
EP1374768A3 (fr) * 1995-02-24 2004-02-11 Nihon Kohden Corporation Dispositif de mesure du dioxyde de carbone
US6267928B1 (en) 1995-02-24 2001-07-31 Nihon Kohden Corporation Capnometer
US20080053194A1 (en) * 2003-04-28 2008-03-06 Ahmad Lubna M Thermoelectric sensor for analytes in a gas and related method
DE102004028032B4 (de) 2004-06-09 2008-04-17 Perkinelmer Optoelectronics Gmbh & Co.Kg Sensorelement
DE102004028433B4 (de) * 2004-06-14 2006-08-31 Danfoss A/S IR-Sensor, insbesondere CO2-Sensor
JP5407387B2 (ja) * 2009-02-06 2014-02-05 セイコーエプソン株式会社 測定装置
CN103458783B (zh) * 2011-01-25 2015-11-25 皇家飞利浦有限公司 用于执行无加热器的基于硒化铅的二氧化碳测定和/或二氧化碳描记的系统和方法
JP5661957B1 (ja) 2014-01-22 2015-01-28 オリジン電気株式会社 カルボン酸ガス濃度の推定方法及び半田付け装置
SE546782C2 (en) * 2021-03-17 2025-02-18 Medclair AB A nitrous oxide detector

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3539804A (en) * 1968-12-23 1970-11-10 Us Army Fluid analysis by infrared absorption
US4050823A (en) * 1974-09-05 1977-09-27 Dragerwerk Aktiengesellschaft Apparatus for continuously measuring the CO2 content in breathing gases
DE2520197C2 (de) * 1975-05-06 1983-11-17 Siemens AG, 1000 Berlin und 8000 München Anordnung zur Driftkompensierung eines Gasanalysators
US4423739A (en) * 1981-08-24 1984-01-03 Andros Analyzers Incorporated End tidal carbon dioxide gas analyzer
JPH02501803A (ja) * 1986-05-21 1990-06-21 ザ・ジョンズ・ホプキンス・ユニバーシティ チョップされた持続波の一重状態酸素モニターに使用される2バンド光学コンパレータ
US4772790A (en) * 1986-10-14 1988-09-20 Teledyne Industries, Inc. Non-dispersive optical gas analyzer
US4859859A (en) * 1986-12-04 1989-08-22 Cascadia Technology Corporation Gas analyzers
US4829183A (en) * 1987-09-11 1989-05-09 Andros Analyzers Incorporated Dual sample cell gas analyzer
US4914719A (en) * 1989-03-10 1990-04-03 Criticare Systems, Inc. Multiple component gas analyzer

Also Published As

Publication number Publication date
GR900100645A (en) 1992-01-20
EP0489840A1 (fr) 1992-06-17
AU637827B2 (en) 1993-06-10
AU6359290A (en) 1991-04-08
AU4430593A (en) 1993-10-14
PT95178A (pt) 1992-05-29
GR1001000B (el) 1993-03-31
EP0489840A4 (en) 1992-08-12
WO1991003204A1 (fr) 1991-03-21
JPH05500112A (ja) 1993-01-14

Similar Documents

Publication Publication Date Title
US5081998A (en) Optically stabilized infrared energy detector
US5095913A (en) Shutterless optically stabilized capnograph
US5296706A (en) Shutterless mainstream discriminating anesthetic agent analyzer
JP4729215B2 (ja) 同位体比率を測定するための赤外分光計
US5282473A (en) Sidestream infrared gas analyzer requiring small sample volumes
US5130544A (en) Optical gas analyzer
US4914719A (en) Multiple component gas analyzer
US7432508B2 (en) Gas measurement system
JP3526652B2 (ja) 光学的測定方法および光学的測定装置
EP0651244B1 (fr) Procédé et dispositif de compensation de températures transitoires dans des appareils analyseurs de gas
US20080061238A1 (en) Breath analyzer
US5920069A (en) Apparatus for automatic identification of gas samples
US20030205673A1 (en) Respiratory gas analyzer
EP1899698A2 (fr) Systeme de mesure de gaz
AU637827B2 (en) Shutterless optically stabilized capnograph
US6191421B1 (en) Gas analyzer using infrared radiation to determine the concentration of a target gas in a gaseous mixture
EP0243139B1 (fr) Procédé et appareil d'analyse de gaz
US4874572A (en) Method of and apparatus for measuring vapor density
US4596931A (en) Method of eliminating measuring errors in photometric analysis
US5731583A (en) Folded optical path gas analyzer with cylindrical chopper
JPH03221843A (ja) 光による分析計
WO1993009413A2 (fr) Selection de filtres pour capnographe sans obturateur, stabilise optiquement
JPH08247942A (ja) 赤外線ガス分析計
US5528039A (en) Method and apparatus for linearization of non-dispersive infrared detector response
JPH11304706A (ja) 赤外線ガス分析装置

Legal Events

Date Code Title Description
FZDE Discontinued