FR2808884A3 - HYPERFREQUENCY-ACOUSTIC GAS ANALYZER - Google Patents

HYPERFREQUENCY-ACOUSTIC GAS ANALYZER

Info

Publication number
FR2808884A3
FR2808884A3 FR0105692A FR0105692A FR2808884A3 FR 2808884 A3 FR2808884 A3 FR 2808884A3 FR 0105692 A FR0105692 A FR 0105692A FR 0105692 A FR0105692 A FR 0105692A FR 2808884 A3 FR2808884 A3 FR 2808884A3
Authority
FR
France
Prior art keywords
gas
sample
signal
test
hyperfrequency
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.)
Pending
Application number
FR0105692A
Other languages
French (fr)
Other versions
FR2808884A1 (en
Inventor
Chu Ching
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.)
Datex Ohmeda Inc
Original Assignee
Datex Ohmeda Inc
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 Datex Ohmeda Inc filed Critical Datex Ohmeda Inc
Publication of FR2808884A3 publication Critical patent/FR2808884A3/en
Publication of FR2808884A1 publication Critical patent/FR2808884A1/en
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/104—Preparation of respiratory gases or vapours specially adapted for anaesthetics
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
    • A61M16/0816—Joints or connectors
    • A61M16/0841—Joints or connectors for sampling
    • A61M16/085—Gas sampling
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N22/00—Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/1005—Preparation of respiratory gases or vapours with O2 features or with parameter measurement
    • A61M2016/102—Measuring a parameter of the content of the delivered gas
    • A61M2016/1035—Measuring a parameter of the content of the delivered gas the anaesthetic agent concentration
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02809—Concentration of a compound, e.g. measured by a surface mass change
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02872—Pressure

Abstract

Ce dispositif pour analyser la concentration d'un gaz de test dans un gaz échantillon comprend une source de micro-ondes (1b), une chambre (12) contenant l'échantillon de gaz et disposé de sorte que le signal de la source traverse l'échantillon de gaz dans la chambre, dans laquelle le gaz de test de l'échantillon de gaz absorbe le signal de test et le convertit en un signal acoustique, un transducteur acoustique (28) détectant ce signal et produisant un signal de sortie corrélé à la quantité du gaz de test dans l'échantillon de gaz et un processeur de signaux (34) déterminant la quantité de test de gaz dans l'échantillon de gaz.Application notamment à la détermination de la concentration d'une vapeur anesthésique dans un échantillon de gaz.This device for analyzing the concentration of a test gas in a sample gas comprises a microwave source (1b), a chamber (12) containing the gas sample and arranged such that the signal from the source passes through the gas sample in the chamber, in which the test gas of the gas sample absorbs the test signal and converts it into an acoustic signal, an acoustic transducer (28) detecting this signal and producing an output signal correlated to the quantity of the test gas in the gas sample and a signal processor (34) determining the test quantity of gas in the gas sample. Application in particular to the determination of the concentration of an anesthetic vapor in a sample gas.

FR0105692A 2000-05-01 2001-04-27 HYPERFREQUENCY-ACOUSTIC GAS ANALYZER Pending FR2808884A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US56281600A 2000-05-01 2000-05-01

Publications (2)

Publication Number Publication Date
FR2808884A3 true FR2808884A3 (en) 2001-11-16
FR2808884A1 FR2808884A1 (en) 2001-11-16

Family

ID=24247892

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0105692A Pending FR2808884A1 (en) 2000-05-01 2001-04-27 HYPERFREQUENCY-ACOUSTIC GAS ANALYZER

Country Status (4)

Country Link
DE (1) DE10120568A1 (en)
FR (1) FR2808884A1 (en)
GB (1) GB2367360A (en)
IT (1) ITRM20010232A0 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9289569B2 (en) 2009-11-16 2016-03-22 Maquet Critical Care Ab Breathing apparatus with monitored delivery device
CN105067654A (en) * 2015-09-11 2015-11-18 天津大学 Single-mode resonant cavity sensor-based solution concentration measurement method
US20220146459A1 (en) * 2019-03-06 2022-05-12 Will Johnson Gas detection system
CN112683846B (en) * 2021-01-05 2022-10-28 中国科学技术大学 Trace gas detection device and method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU951128A1 (en) * 1980-10-10 1982-08-15 Предприятие П/Я А-1858 Radio spectrometer
US5548217A (en) * 1984-11-10 1996-08-20 Gibson; Colin Microwave spectrometers
DK247786D0 (en) * 1986-05-27 1986-05-27 Brueel & Kjaer As PHOTOACUSTIC GAS ANALYZER
DE3723606A1 (en) * 1987-07-17 1989-01-26 Kernforschungsz Karlsruhe METHOD AND DEVICE FOR ANALYSIS BY MEANS OF MICROWAVES
DE3929079A1 (en) * 1989-09-01 1991-03-21 Dreizler Helmut METHOD AND DEVICE FOR ANALYZING GAS-SHAPED MEDIA BY MEANS OF MICROWAVES
GB2271181A (en) * 1992-09-30 1994-04-06 Marconi Gec Ltd Photoacoustic Gas Analyser.
DE19723462A1 (en) * 1997-06-05 1998-12-10 Thomas Dr Bluemchen Application of gas microwave spectroscopy to measurement, control and threshold indication
DE19810084C2 (en) * 1998-03-10 2001-05-23 Ust Umweltsensortechnik Gmbh Method and device for the spatial detection of air contents

Also Published As

Publication number Publication date
GB2367360A (en) 2002-04-03
GB0109036D0 (en) 2001-05-30
DE10120568A1 (en) 2001-11-08
ITRM20010232A0 (en) 2001-04-27
FR2808884A1 (en) 2001-11-16

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