CA1139965A - Pneumotachograph with pitot-like tubes - Google Patents

Pneumotachograph with pitot-like tubes

Info

Publication number
CA1139965A
CA1139965A CA000352971A CA352971A CA1139965A CA 1139965 A CA1139965 A CA 1139965A CA 000352971 A CA000352971 A CA 000352971A CA 352971 A CA352971 A CA 352971A CA 1139965 A CA1139965 A CA 1139965A
Authority
CA
Canada
Prior art keywords
tubes
flow
baffles
pitot
path
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
CA000352971A
Other languages
English (en)
French (fr)
Inventor
John J. Osborn
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.)
Japan Science and Technology Agency
Original Assignee
Research Development Corp of Japan
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 Research Development Corp of Japan filed Critical Research Development Corp of Japan
Priority to CA000415239A priority Critical patent/CA1156494A/en
Application granted granted Critical
Publication of CA1139965A publication Critical patent/CA1139965A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
    • G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
    • 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
    • A61B5/087—Measuring breath flow
    • A61B5/0876—Measuring breath flow using means deflected by the fluid stream, e.g. flaps

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Medical Informatics (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physiology (AREA)
  • Molecular Biology (AREA)
  • Pulmonology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
CA000352971A 1979-05-29 1980-05-29 Pneumotachograph with pitot-like tubes Expired CA1139965A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA000415239A CA1156494A (en) 1979-05-29 1982-11-09 Pneumotachograph with pitot-like tubes

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US4326379A 1979-05-29 1979-05-29
US043,263 1979-05-29
US15174280A 1980-05-20 1980-05-20
US151,742 1980-05-20

Publications (1)

Publication Number Publication Date
CA1139965A true CA1139965A (en) 1983-01-25

Family

ID=26720201

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000352971A Expired CA1139965A (en) 1979-05-29 1980-05-29 Pneumotachograph with pitot-like tubes

Country Status (4)

Country Link
CA (1) CA1139965A (Direct)
DE (1) DE3020265C2 (Direct)
FR (1) FR2457675A1 (Direct)
GB (1) GB2052074B (Direct)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL72446A0 (en) * 1984-07-19 1984-11-30 Moshe Grinbaum Spirometer
FR2624271B1 (fr) * 1987-12-02 1990-03-30 Aerospatiale Dispositif detecteur de fuites pour circuit a circulation de fluide
FI84757C (fi) * 1988-12-12 1992-01-10 Instrumentarium Oy Foer stroemningsmaetning avsett gasens stroemning begraensande och styrande organ.
US5038773A (en) * 1990-06-08 1991-08-13 Medical Graphics Corporation Flow meter system
US5379650A (en) * 1992-09-23 1995-01-10 Korr Medical Technologies Inc. Differential pressure sensor for respiratory monitoring
US5535633A (en) * 1992-09-23 1996-07-16 Korr Medical Technologies, Inc. Differential pressure sensor for respiratory monitoring
US5443075A (en) * 1993-03-01 1995-08-22 Puritan-Bennett Corporation Flow measuring apparatus
US7335164B2 (en) 1996-07-15 2008-02-26 Ntc Technology, Inc. Multiple function airway adapter
US5789660A (en) 1996-07-15 1998-08-04 Novametrix Medical Systems, Inc. Multiple function airway adapter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2233829A1 (de) * 1972-07-10 1974-03-14 Westfaelische Metall Industrie Kraftstoffbehaelter, insbesondere kraftradtank
US4083245A (en) * 1977-03-21 1978-04-11 Research Development Corporation Variable orifice gas flow sensing head
CA1069342A (en) * 1976-07-29 1980-01-08 Research Development Corporation Variable orifice gas flow sensing head
DE2802830C3 (de) * 1978-01-23 1982-02-11 Müller, Gerhard, Prof. Dr.-Ing., 7080 Aalen Fluidströmungsmesser
US4197857A (en) * 1978-04-06 1980-04-15 Research Development Corporation System for measurement of oxygen uptake and respiratory quotient

Also Published As

Publication number Publication date
GB2052074B (en) 1984-05-10
FR2457675A1 (fr) 1980-12-26
FR2457675B1 (Direct) 1983-11-10
GB2052074A (en) 1981-01-21
DE3020265C2 (de) 1984-03-15
DE3020265A1 (de) 1981-01-22

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Legal Events

Date Code Title Description
MKEX Expiry