FR2443826A1 - Measurement of patient's oxygen consumption rate - includes addition of measured quantity of pure oxygen to expired air to restore normal level in mixture - Google Patents

Measurement of patient's oxygen consumption rate - includes addition of measured quantity of pure oxygen to expired air to restore normal level in mixture

Info

Publication number
FR2443826A1
FR2443826A1 FR7835258A FR7835258A FR2443826A1 FR 2443826 A1 FR2443826 A1 FR 2443826A1 FR 7835258 A FR7835258 A FR 7835258A FR 7835258 A FR7835258 A FR 7835258A FR 2443826 A1 FR2443826 A1 FR 2443826A1
Authority
FR
France
Prior art keywords
patient
oxygen
gas
measurement
mixture
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
FR7835258A
Other languages
French (fr)
Other versions
FR2443826B1 (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.)
GAUTHIER ETS
Original Assignee
GAUTHIER ETS
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 GAUTHIER ETS filed Critical GAUTHIER ETS
Priority to FR7835258A priority Critical patent/FR2443826A1/en
Publication of FR2443826A1 publication Critical patent/FR2443826A1/en
Application granted granted Critical
Publication of FR2443826B1 publication Critical patent/FR2443826B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pulmonology (AREA)
  • Physics & Mathematics (AREA)
  • Obesity (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Emergency Medicine (AREA)
  • Physiology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

The patient (3) breathes in and out through a first (1) and second pipe (2), with non-return valves (1a, 2a) ensuring that air flows in the required direction only. The second pipe (2) opens into an enclosure (4) of sufficient size that gas flows continuously out through the outlet (5). A further supply (7) of the gas being monitored (oxygen or carbon dioxide) is fed through a control valve (8) with a flow meter (10) attached to the outlet (5). A sensor in the outlet pipe senses the concentration of the detected gas in the mixed output of air. The signal produced is proportiona to this concentration, and is fed to a caomprator (12) whose other input is a reference value. The comparator output is fed to the valve (9) control. The valve (8) is thus regulated to eliminate any difference signal from the comparator. The reading on the flow meter then indicates the rate at which gas is used by the patient.
FR7835258A 1978-12-14 1978-12-14 Measurement of patient's oxygen consumption rate - includes addition of measured quantity of pure oxygen to expired air to restore normal level in mixture Granted FR2443826A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7835258A FR2443826A1 (en) 1978-12-14 1978-12-14 Measurement of patient's oxygen consumption rate - includes addition of measured quantity of pure oxygen to expired air to restore normal level in mixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7835258A FR2443826A1 (en) 1978-12-14 1978-12-14 Measurement of patient's oxygen consumption rate - includes addition of measured quantity of pure oxygen to expired air to restore normal level in mixture

Publications (2)

Publication Number Publication Date
FR2443826A1 true FR2443826A1 (en) 1980-07-11
FR2443826B1 FR2443826B1 (en) 1982-06-04

Family

ID=9216125

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7835258A Granted FR2443826A1 (en) 1978-12-14 1978-12-14 Measurement of patient's oxygen consumption rate - includes addition of measured quantity of pure oxygen to expired air to restore normal level in mixture

Country Status (1)

Country Link
FR (1) FR2443826A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE740705A (en) * 1969-10-23 1970-04-23
US3523529A (en) * 1968-06-25 1970-08-11 Us Air Force Oxygen consumption computer
FR2170008A1 (en) * 1972-01-31 1973-09-14 Siemens Ag
DE2710783B1 (en) * 1977-03-11 1978-04-20 Siemens Ag Device for examining lung function

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3523529A (en) * 1968-06-25 1970-08-11 Us Air Force Oxygen consumption computer
BE740705A (en) * 1969-10-23 1970-04-23
FR2170008A1 (en) * 1972-01-31 1973-09-14 Siemens Ag
DE2710783B1 (en) * 1977-03-11 1978-04-20 Siemens Ag Device for examining lung function

Also Published As

Publication number Publication date
FR2443826B1 (en) 1982-06-04

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Legal Events

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TP Transmission of property
ST Notification of lapse