GB1302375A - - Google Patents

Info

Publication number
GB1302375A
GB1302375A GB4000469A GB1302375DA GB1302375A GB 1302375 A GB1302375 A GB 1302375A GB 4000469 A GB4000469 A GB 4000469A GB 1302375D A GB1302375D A GB 1302375DA GB 1302375 A GB1302375 A GB 1302375A
Authority
GB
United Kingdom
Prior art keywords
vane
rotation
gas flow
arrow
spindle
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.)
Expired
Application number
GB4000469A
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 filed Critical
Publication of GB1302375A publication Critical patent/GB1302375A/en
Expired 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
    • A61B5/087—Measuring breath flow
    • A61B5/09—Measuring breath flow using an element rotated by the flow
    • 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
    • A61B5/087—Measuring breath flow
    • A61B5/0876—Measuring breath flow using means deflected by the fluid stream, e.g. flaps
    • 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
    • A61M16/0051—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes with alarm devices
    • 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
    • A61M16/021—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes operated by electrical means

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Pulmonology (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Medical Informatics (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Physiology (AREA)
  • Emergency Medicine (AREA)
  • Anesthesiology (AREA)
  • Hematology (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
  • Measuring Volume Flow (AREA)

Abstract

1302375 Measuring fluid-flow BIOLOGICAL INSTRUMENTS Ltd 19 Oct 1970 [11 Aug 1969] 40004/69 Heading G1R [Also in Division A5] A gas flow monitoring device, for example in a respirator, comprises a rotatably mounted vane 9 adapted to rotate in the same sense irrespective of the direction of gas flow through the device, and means for sensing the speed of rotation of the vane, such as magnets 11 which on rotation of the vane induce currents in a coil 12. The constant sense of rotation of the vane is achieved by positioning holes 4 and 5 in a housing 1 on opposite sides of a vane spindle 10 so that irrespective of whether the gas flow is in the direction of arrow a or arrow b the rotation will be anticlockwise. In a modification, Fig.2 (not shown), the vane is constructed as two aerofoils (15) one on each side of a spindle (14).
GB4000469A 1969-08-11 1969-08-11 Expired GB1302375A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4000469 1969-08-11

Publications (1)

Publication Number Publication Date
GB1302375A true GB1302375A (en) 1973-01-10

Family

ID=10412675

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4000469A Expired GB1302375A (en) 1969-08-11 1969-08-11

Country Status (1)

Country Link
GB (1) GB1302375A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255235A (en) * 1977-12-29 1981-03-10 Framatome Device for measuring the flow rate of cooling fluid at the inlet of the core of a water-cooled reactor
US4294262A (en) * 1978-05-31 1981-10-13 Ferraris Development And Engineering Company Limited Apparatus for monitoring respiratory performance
EP0084159A1 (en) * 1982-01-11 1983-07-27 Kinetics Measurement Co. Sensing device for human lung exhalation/inhalation air flow measurement

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255235A (en) * 1977-12-29 1981-03-10 Framatome Device for measuring the flow rate of cooling fluid at the inlet of the core of a water-cooled reactor
US4294262A (en) * 1978-05-31 1981-10-13 Ferraris Development And Engineering Company Limited Apparatus for monitoring respiratory performance
EP0084159A1 (en) * 1982-01-11 1983-07-27 Kinetics Measurement Co. Sensing device for human lung exhalation/inhalation air flow measurement
US4441505A (en) * 1982-01-11 1984-04-10 Kinetics Measurement Corp. Sensing device for human lung exhalation/inhalation air flow measurement

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees