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FR2435031A1 - PROCESS FOR RECORDING THE MASS OR VOLUME RATIO BETWEEN A GAS OR A GAS MIXTURE AND THE VAPOR PRODUCED BY A VOLATILE ANESTHETIC LIQUID, AND APPARATUS FOR IMPLEMENTING SAME - Google Patents

PROCESS FOR RECORDING THE MASS OR VOLUME RATIO BETWEEN A GAS OR A GAS MIXTURE AND THE VAPOR PRODUCED BY A VOLATILE ANESTHETIC LIQUID, AND APPARATUS FOR IMPLEMENTING SAME

Info

Publication number
FR2435031A1
FR2435031A1 FR7921682A FR7921682A FR2435031A1 FR 2435031 A1 FR2435031 A1 FR 2435031A1 FR 7921682 A FR7921682 A FR 7921682A FR 7921682 A FR7921682 A FR 7921682A FR 2435031 A1 FR2435031 A1 FR 2435031A1
Authority
FR
France
Prior art keywords
gas
recording
mass
volume ratio
vapor produced
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.)
Granted
Application number
FR7921682A
Other languages
French (fr)
Other versions
FR2435031B3 (en
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.)
Individual
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
Application filed by Individual filed Critical Individual
Publication of FR2435031A1 publication Critical patent/FR2435031A1/en
Application granted granted Critical
Publication of FR2435031B3 publication Critical patent/FR2435031B3/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • 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. ventilators; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A61M16/18—Vaporising devices for anaesthetic preparations

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Anesthesiology (AREA)
  • Biochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Chemical & Material Sciences (AREA)
  • Emergency Medicine (AREA)
  • Pulmonology (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Nozzles (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

Procédé et appareil de relevée et/ou de contrôle du rapport massique ou volumique entre un gaz ou un mélange de gaz destiné à la respiration, et la vapeur produite par un liquide anesthésique. La vaporisation est effectuée sur un corps D dans une zone parcourue par un courant du gaz, et la température du gaz à respirer ou fluide aériforme est mesurée aux points E et F, avant et après cette zone. La différence entre les deux températures, obtenue sous forme de signaux électriques, est comparée à un signal électrique de référence, représentatif de la valeur du rapport imposé et avec lequel il doit coïncider, par l'intermédiaire d'une variation du débit du liquide à vaporiser. Application à l'anesthésie.Method and apparatus for recording and / or controlling the mass or volume ratio between a gas or a mixture of gases intended for respiration, and the vapor produced by an anesthetic liquid. The vaporization is carried out on a body D in a zone through which a current of gas flows, and the temperature of the breathing gas or aeriform fluid is measured at points E and F, before and after this zone. The difference between the two temperatures, obtained in the form of electrical signals, is compared with an electrical reference signal, representative of the value of the imposed ratio and with which it must coincide, by means of a variation of the flow rate of the liquid at spray. Application to anesthesia.

FR7921682A 1978-08-29 1979-08-29 PROCESS FOR RECORDING THE MASS OR VOLUME RATIO BETWEEN A GAS OR A GAS MIXTURE AND THE VAPOR PRODUCED BY A VOLATILE ANESTHETIC LIQUID, AND APPARATUS FOR IMPLEMENTING SAME Granted FR2435031A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT82542/78A IT1162176B (en) 1978-08-29 1978-08-29 METHOD FOR DETECTING THE RELATIONSHIP BETWEEN A GAS OR MIXTURE OF GAS AND THE STEAM PRODUCED BY VOLATILE ANESTHETIC LIQUID FOR THE PURPOSE OF KNOWING THE DOSAGE OF THE ANESTHYTIC ITSELF AND EVENTUALLY PERFORMING AUTOMATIC DOSING

Publications (2)

Publication Number Publication Date
FR2435031A1 true FR2435031A1 (en) 1980-03-28
FR2435031B3 FR2435031B3 (en) 1981-06-26

Family

ID=11318611

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7921682A Granted FR2435031A1 (en) 1978-08-29 1979-08-29 PROCESS FOR RECORDING THE MASS OR VOLUME RATIO BETWEEN A GAS OR A GAS MIXTURE AND THE VAPOR PRODUCED BY A VOLATILE ANESTHETIC LIQUID, AND APPARATUS FOR IMPLEMENTING SAME

Country Status (5)

Country Link
DE (1) DE2933224A1 (en)
FR (1) FR2435031A1 (en)
GB (1) GB2029572B (en)
IT (1) IT1162176B (en)
SE (1) SE7907094L (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2597631A1 (en) * 1986-04-22 1987-10-23 Corfa Yves Paul ANESTHETIC LIQUID EVAPORATOR
DE4317879B4 (en) * 1993-05-28 2005-02-10 I.T.V.I. International Techno Venture Invest Ag Apparatus for detecting inorganic-organic compounds, anesthetic gases, pesticides, insecticides and halogenated hydrocarbons in gas streams by means of semiconductor gas sensors
SE9500175L (en) * 1995-01-19 1996-07-20 Siemens Elema Ab Method and apparatus for identifying at least one anesthetic in an anesthetic device
US6202480B1 (en) * 1998-04-02 2001-03-20 Agilent Technologies, Inc. Thermometric vapor sensor with evaporation surface having micropores
US8267081B2 (en) 2009-02-20 2012-09-18 Baxter International Inc. Inhaled anesthetic agent therapy and delivery system
US8752544B2 (en) 2011-03-21 2014-06-17 General Electric Company Medical vaporizer and method of monitoring of a medical vaporizer
US20130220314A1 (en) * 2012-02-29 2013-08-29 General Electric Company Medical vaporizer with porous vaporization element
US10610659B2 (en) 2017-03-23 2020-04-07 General Electric Company Gas mixer incorporating sensors for measuring flow and concentration
US10946160B2 (en) 2017-03-23 2021-03-16 General Electric Company Medical vaporizer with carrier gas characterization, measurement, and/or compensation

Also Published As

Publication number Publication date
GB2029572B (en) 1982-12-15
IT1162176B (en) 1987-03-25
FR2435031B3 (en) 1981-06-26
IT7882542A0 (en) 1978-08-29
DE2933224A1 (en) 1980-03-13
GB2029572A (en) 1980-03-19
SE7907094L (en) 1980-03-01

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Legal Events

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