DE69021100T2 - Mit zwei Wellenlängen arbeitende Vorrichtung zur Messung von Gaskonzentrationen in der Atemluft. - Google Patents
Mit zwei Wellenlängen arbeitende Vorrichtung zur Messung von Gaskonzentrationen in der Atemluft.Info
- Publication number
- DE69021100T2 DE69021100T2 DE1990621100 DE69021100T DE69021100T2 DE 69021100 T2 DE69021100 T2 DE 69021100T2 DE 1990621100 DE1990621100 DE 1990621100 DE 69021100 T DE69021100 T DE 69021100T DE 69021100 T2 DE69021100 T2 DE 69021100T2
- Authority
- DE
- Germany
- Prior art keywords
- wavelengths
- breathing air
- measuring gas
- gas concentrations
- concentrations
- 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
Links
- 230000029058 respiratory gaseous exchange Effects 0.000 title 1
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)
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 |
---|---|
DE69021100D1 DE69021100D1 (de) | 1995-08-31 |
DE69021100T2 true DE69021100T2 (de) | 1996-04-18 |
Family
ID=12753162
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1990621100 Expired - Fee Related DE69021100T2 (de) | 1989-03-01 | 1990-02-21 | Mit zwei Wellenlängen arbeitende Vorrichtung zur Messung von Gaskonzentrationen in der Atemluft. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4998018A (de) |
EP (1) | EP0385256B1 (de) |
JP (1) | JPH02228943A (de) |
DE (1) | DE69021100T2 (de) |
FI (1) | FI97643C (de) |
Families Citing this family (43)
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 |
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 |
WO1999039637A1 (en) | 1998-02-05 | 1999-08-12 | Mault James R | Metabolic calorimeter employing respiratory gas analysis |
US6095986A (en) * | 1998-07-28 | 2000-08-01 | Square One Technology, Inc. | Disposable anti-fog airway adapter |
CA2338998A1 (en) | 1998-08-03 | 2000-02-17 | 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 |
WO2000067634A2 (en) * | 1999-05-10 | 2000-11-16 | Mault James R | 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 |
EP1217942A1 (de) | 1999-09-24 | 2002-07-03 | Healthetech, Inc. | Physiologisches überwachungsgerät und damit verbundener computer, anzeigegerät und kommunikationseinheit |
WO2001028495A2 (en) | 1999-10-08 | 2001-04-26 | Healthetech, Inc. | Indirect calorimeter for weight control |
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 |
AU2001274942A1 (en) * | 2000-05-25 | 2001-12-03 | Healthetech, Inc. | Weight control method using physical activity based parameters |
WO2001093743A2 (en) * | 2000-06-07 | 2001-12-13 | Healthetech, Inc. | Breath ketone analyzer |
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 |
AU2001288902A1 (en) * | 2000-09-07 | 2002-03-22 | Healthetech, Inc. | Portable computing apparatus particularly useful in a weight management program |
WO2002026112A2 (en) | 2000-09-29 | 2002-04-04 | 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 |
WO2002071017A2 (en) * | 2001-03-02 | 2002-09-12 | 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 |
AU2003223420A1 (en) * | 2002-04-01 | 2003-10-20 | 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)
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 |
-
1989
- 1989-03-01 JP JP1046649A patent/JPH02228943A/ja active Granted
-
1990
- 1990-02-21 DE DE1990621100 patent/DE69021100T2/de not_active Expired - Fee Related
- 1990-02-21 EP EP19900103363 patent/EP0385256B1/de not_active Expired - Lifetime
- 1990-02-22 US US07/483,914 patent/US4998018A/en not_active Expired - Lifetime
- 1990-02-28 FI FI901007A patent/FI97643C/fi not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JPH0346137B2 (de) | 1991-07-15 |
EP0385256A3 (de) | 1991-10-16 |
EP0385256A2 (de) | 1990-09-05 |
JPH02228943A (ja) | 1990-09-11 |
DE69021100D1 (de) | 1995-08-31 |
FI901007A0 (fi) | 1990-02-28 |
US4998018A (en) | 1991-03-05 |
FI97643B (fi) | 1996-10-15 |
EP0385256B1 (de) | 1995-07-26 |
FI97643C (fi) | 1997-01-27 |
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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 |