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FR2420157A1 - Flow selector for separating inhaled and exhaled gases - has electronically controlled shutter which opens or closes one of two pipes according to direction of gas flow - Google Patents

Flow selector for separating inhaled and exhaled gases - has electronically controlled shutter which opens or closes one of two pipes according to direction of gas flow

Info

Publication number
FR2420157A1
FR2420157A1 FR7807621A FR7807621A FR2420157A1 FR 2420157 A1 FR2420157 A1 FR 2420157A1 FR 7807621 A FR7807621 A FR 7807621A FR 7807621 A FR7807621 A FR 7807621A FR 2420157 A1 FR2420157 A1 FR 2420157A1
Authority
FR
France
Prior art keywords
opens
closes
gas flow
inhaled
flow
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
FR7807621A
Other languages
French (fr)
Other versions
FR2420157B1 (en
Inventor
Herve Guenard
Roger Lambert
Guy Vardon
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.)
Institut National de la Sante et de la Recherche Medicale INSERM
Original Assignee
Institut National de la Sante et de la Recherche Medicale INSERM
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 Institut National de la Sante et de la Recherche Medicale INSERM filed Critical Institut National de la Sante et de la Recherche Medicale INSERM
Priority to FR7807621A priority Critical patent/FR2420157B1/en
Publication of FR2420157A1 publication Critical patent/FR2420157A1/en
Application granted granted Critical
Publication of FR2420157B1 publication Critical patent/FR2420157B1/en
Expired 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. ventilators; Tracheal tubes
    • A61M16/20—Valves specially adapted to medical respiratory devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/08—Measuring devices for evaluating the respiratory organs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/08—Measuring devices for evaluating the respiratory organs
    • A61B5/082—Evaluation by breath analysis, e.g. determination of the chemical composition of exhaled breath

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Pulmonology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Hematology (AREA)
  • Emergency Medicine (AREA)
  • Anesthesiology (AREA)
  • Physiology (AREA)
  • Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

The inhaled and exhaled gas fow detector has a principal tube which divides into first and secondary tubes. It also has a shutter system which is sensitive to the direction of flow of a gas in the principal tube. The shutter closes the first secondary tube and opens the second secondary tube when the gas flows in a first direction in the principal pipe. Gas flow in the reverse direction has the opposite effect of the secondary tubes. The shutter (15) rotates between two positions in each of which it closes one of the secondary tubes (10, 11) and opens the other (11, 10). A motor (17) rotates the shutter and a detector (21) determines the direction of gas flow in the principal tube. An electronic circuit (22, 37) controls the rotation of the motor according to the direction of gas flow determined by the detector.
FR7807621A 1978-03-16 1978-03-16 FLOW SELECTOR DEVICE, PARTICULARLY FOR SEPARATING INSPIRED AND EXPIRED GASES BY A SUBJECT Expired FR2420157B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7807621A FR2420157B1 (en) 1978-03-16 1978-03-16 FLOW SELECTOR DEVICE, PARTICULARLY FOR SEPARATING INSPIRED AND EXPIRED GASES BY A SUBJECT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7807621A FR2420157B1 (en) 1978-03-16 1978-03-16 FLOW SELECTOR DEVICE, PARTICULARLY FOR SEPARATING INSPIRED AND EXPIRED GASES BY A SUBJECT

Publications (2)

Publication Number Publication Date
FR2420157A1 true FR2420157A1 (en) 1979-10-12
FR2420157B1 FR2420157B1 (en) 1983-03-04

Family

ID=9205879

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7807621A Expired FR2420157B1 (en) 1978-03-16 1978-03-16 FLOW SELECTOR DEVICE, PARTICULARLY FOR SEPARATING INSPIRED AND EXPIRED GASES BY A SUBJECT

Country Status (1)

Country Link
FR (1) FR2420157B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2574061A1 (en) * 1984-12-04 1986-06-06 Danto Rogeat Entreprise Automatic coffee dispensing appts.
EP0373153A2 (en) * 1986-02-04 1990-06-13 Dranez Anstalt Ventilator apparatus
EP0602734A1 (en) * 1992-12-16 1994-06-22 Metropolitan Clinical Laboratories (1987) Ltd. Method and apparatus for the therapeutic intermittent delivery of oxygen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE645564A (en) * 1964-03-05 1964-07-16
US3507297A (en) * 1964-06-23 1970-04-21 Norman P Dann Artificial respiration apparatus
DE1915959A1 (en) * 1969-03-28 1970-10-08 Siemens Ag Device for analyzing the gas mixture exhaled by a patient
US3613665A (en) * 1969-08-08 1971-10-19 Reynolds G Gorsuch Sampling means for exhaled air

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE645564A (en) * 1964-03-05 1964-07-16
US3507297A (en) * 1964-06-23 1970-04-21 Norman P Dann Artificial respiration apparatus
DE1915959A1 (en) * 1969-03-28 1970-10-08 Siemens Ag Device for analyzing the gas mixture exhaled by a patient
US3613665A (en) * 1969-08-08 1971-10-19 Reynolds G Gorsuch Sampling means for exhaled air

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2574061A1 (en) * 1984-12-04 1986-06-06 Danto Rogeat Entreprise Automatic coffee dispensing appts.
EP0373153A2 (en) * 1986-02-04 1990-06-13 Dranez Anstalt Ventilator apparatus
EP0373153A3 (en) * 1986-02-04 1990-09-26 Dranez Anstalt Ventilator apparatus
EP0602734A1 (en) * 1992-12-16 1994-06-22 Metropolitan Clinical Laboratories (1987) Ltd. Method and apparatus for the therapeutic intermittent delivery of oxygen

Also Published As

Publication number Publication date
FR2420157B1 (en) 1983-03-04

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse