AU637827B2 - Shutterless optically stabilized capnograph - Google Patents
Shutterless optically stabilized capnographInfo
- Publication number
- AU637827B2 AU637827B2 AU63592/90A AU6359290A AU637827B2 AU 637827 B2 AU637827 B2 AU 637827B2 AU 63592/90 A AU63592/90 A AU 63592/90A AU 6359290 A AU6359290 A AU 6359290A AU 637827 B2 AU637827 B2 AU 637827B2
- Authority
- AU
- Australia
- Prior art keywords
- infrared
- detectors
- signal
- pair
- detector
- 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.)
- Ceased
Links
- 230000005855 radiation Effects 0.000 claims description 96
- 230000003287 optical effect Effects 0.000 claims description 69
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 62
- 239000000470 constituent Substances 0.000 claims description 44
- 238000012545 processing Methods 0.000 claims description 40
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical group [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 claims description 38
- 230000000241 respiratory effect Effects 0.000 claims description 37
- 238000000034 method Methods 0.000 claims description 32
- 230000007935 neutral effect Effects 0.000 claims description 28
- 230000005540 biological transmission Effects 0.000 claims description 24
- 230000000694 effects Effects 0.000 claims description 24
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical group O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 18
- 230000000903 blocking effect Effects 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 10
- 239000001569 carbon dioxide Substances 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 8
- 239000001272 nitrous oxide Substances 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000002238 attenuated effect Effects 0.000 claims 10
- 239000007789 gas Substances 0.000 description 54
- 238000010521 absorption reaction Methods 0.000 description 20
- 239000000758 substrate Substances 0.000 description 20
- 238000013461 design Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000005259 measurement Methods 0.000 description 8
- 239000000919 ceramic Substances 0.000 description 7
- 238000001228 spectrum Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 6
- 238000002955 isolation Methods 0.000 description 5
- 230000006641 stabilisation Effects 0.000 description 5
- 238000011105 stabilization Methods 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 238000013459 approach Methods 0.000 description 4
- 230000005284 excitation Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000009877 rendering Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 206010002091 Anaesthesia Diseases 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000037005 anaesthesia Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000009795 derivation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000002277 temperature effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- YBNMDCCMCLUHBL-UHFFFAOYSA-N (2,5-dioxopyrrolidin-1-yl) 4-pyren-1-ylbutanoate Chemical compound C=1C=C(C2=C34)C=CC3=CC=CC4=CC=C2C=1CCCC(=O)ON1C(=O)CCC1=O YBNMDCCMCLUHBL-UHFFFAOYSA-N 0.000 description 1
- 229920002799 BoPET Polymers 0.000 description 1
- LVZWSLJZHVFIQJ-UHFFFAOYSA-N Cyclopropane Chemical compound C1CC1 LVZWSLJZHVFIQJ-UHFFFAOYSA-N 0.000 description 1
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 1
- 239000005041 Mylar™ Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003994 anesthetic gas Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000013154 diagnostic monitoring Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000002849 thermal shift Methods 0.000 description 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
- G01N21/35—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
-
- 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
-
- 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
- G01J1/20—Photometry, 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
- G01J1/22—Photometry, 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
- G01J1/24—Photometry, 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
-
- 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
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
- G01J5/12—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using thermoelectric elements, e.g. thermocouples
-
- 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
- G01N2021/3166—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 using separate detectors and filters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/12—Circuits of general importance; Signal processing
- G01N2201/126—Microprocessor processing
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US40195289A | 1989-09-01 | 1989-09-01 | |
| US401952 | 1989-09-01 | ||
| US522208 | 1990-05-11 | ||
| US522177 | 1990-05-11 | ||
| US07/522,208 US5095913A (en) | 1989-09-01 | 1990-05-11 | Shutterless optically stabilized capnograph |
| US07/522,177 US5081998A (en) | 1989-09-01 | 1990-05-11 | Optically stabilized infrared energy detector |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU31002/93A Division AU3100293A (en) | 1989-09-01 | 1993-01-04 | Shutterless optically stabilized capnograph |
| AU44305/93A Division AU4430593A (en) | 1989-09-01 | 1993-07-29 | Shutterless optically stabilized capnograph |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU6359290A AU6359290A (en) | 1991-04-08 |
| AU637827B2 true AU637827B2 (en) | 1993-06-10 |
Family
ID=27410482
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU63592/90A Ceased AU637827B2 (en) | 1989-09-01 | 1990-08-27 | Shutterless optically stabilized capnograph |
| AU44305/93A Abandoned AU4430593A (en) | 1989-09-01 | 1993-07-29 | Shutterless optically stabilized capnograph |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU44305/93A Abandoned AU4430593A (en) | 1989-09-01 | 1993-07-29 | Shutterless optically stabilized capnograph |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0489840A4 (ja) |
| JP (1) | JPH05500112A (ja) |
| AU (2) | AU637827B2 (ja) |
| CA (1) | CA2064892A1 (ja) |
| GR (1) | GR1001000B (ja) |
| PT (1) | PT95178A (ja) |
| WO (1) | WO1991003204A1 (ja) |
Families Citing this family (11)
| 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 (en) * | 1995-02-24 | 2004-02-11 | Nihon Kohden Corporation | Capnometer |
| 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 |
| WO2012101556A1 (en) * | 2011-01-25 | 2012-08-02 | Koninklijke Philips Electronics N.V. | System and method for performing heater-less lead selenide-based capnometry and/or capnography |
| 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 |
| SE2150303A1 (en) * | 2021-03-17 | 2022-09-18 | Medclair AB | Gas sensor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4829183A (en) * | 1987-09-11 | 1989-05-09 | Andros Analyzers Incorporated | Dual sample cell gas analyzer |
| US4859859A (en) * | 1986-12-04 | 1989-08-22 | Cascadia Technology Corporation | Gas analyzers |
| US4914719A (en) * | 1989-03-10 | 1990-04-03 | Criticare Systems, Inc. | Multiple component gas analyzer |
Family Cites Families (6)
| 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 |
-
1990
- 1990-08-27 EP EP19900913661 patent/EP0489840A4/en not_active Withdrawn
- 1990-08-27 WO PCT/US1990/004875 patent/WO1991003204A1/en not_active Application Discontinuation
- 1990-08-27 JP JP51275590A patent/JPH05500112A/ja active Pending
- 1990-08-27 AU AU63592/90A patent/AU637827B2/en not_active Ceased
- 1990-08-27 CA CA002064892A patent/CA2064892A1/en not_active Abandoned
- 1990-08-28 GR GR900100645A patent/GR1001000B/el unknown
- 1990-08-31 PT PT9517890A patent/PT95178A/pt unknown
-
1993
- 1993-07-29 AU AU44305/93A patent/AU4430593A/en not_active Abandoned
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
|---|---|
| AU6359290A (en) | 1991-04-08 |
| EP0489840A1 (en) | 1992-06-17 |
| EP0489840A4 (en) | 1992-08-12 |
| GR900100645A (en) | 1992-01-20 |
| CA2064892A1 (en) | 1991-03-02 |
| GR1001000B (el) | 1993-03-31 |
| AU4430593A (en) | 1993-10-14 |
| JPH05500112A (ja) | 1993-01-14 |
| WO1991003204A1 (en) | 1991-03-21 |
| PT95178A (pt) | 1992-05-29 |
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