GB1174726A - Improvements in Devices for Measuring the Flow Velocity of a Liquid - Google Patents

Improvements in Devices for Measuring the Flow Velocity of a Liquid

Info

Publication number
GB1174726A
GB1174726A GB32170/68A GB3217068A GB1174726A GB 1174726 A GB1174726 A GB 1174726A GB 32170/68 A GB32170/68 A GB 32170/68A GB 3217068 A GB3217068 A GB 3217068A GB 1174726 A GB1174726 A GB 1174726A
Authority
GB
United Kingdom
Prior art keywords
serum
blood
measuring
flow
july
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
GB32170/68A
Other languages
English (en)
Inventor
Michel Auphan
Jean Perilhou
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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
Priority claimed from FR113761A external-priority patent/FR92750E/fr
Application filed by Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1174726A publication Critical patent/GB1174726A/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
    • A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
    • A61B5/026—Measuring blood flow
    • A61B5/0275—Measuring blood flow using tracers, e.g. dye dilution
    • A61B5/028—Measuring blood flow using tracers, e.g. dye dilution by thermo-dilution
    • 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
    • G01F1/68—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 thermal effects
    • 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
    • G01F1/68—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 thermal effects
    • G01F1/684—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
    • G01F1/688—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow using a particular type of heating, cooling or sensing element
    • G01F1/6888—Thermoelectric elements, e.g. thermocouples, thermopiles
    • 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
    • G01F1/704—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter

Landscapes

  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Biophysics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Physiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Cardiology (AREA)
  • Hematology (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Measuring Volume Flow (AREA)
  • External Artificial Organs (AREA)
GB32170/68A 1967-07-10 1968-07-05 Improvements in Devices for Measuring the Flow Velocity of a Liquid Expired GB1174726A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR113761A FR92750E (fr) 1965-07-28 1967-07-10 Dispositif pour mesurer le débit d'un fluide.

Publications (1)

Publication Number Publication Date
GB1174726A true GB1174726A (en) 1969-12-17

Family

ID=8634841

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32170/68A Expired GB1174726A (en) 1967-07-10 1968-07-05 Improvements in Devices for Measuring the Flow Velocity of a Liquid

Country Status (4)

Country Link
US (1) US3561266A (enExample)
BE (1) BE717799A (enExample)
GB (1) GB1174726A (enExample)
NL (1) NL6809490A (enExample)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE363230B (enExample) * 1973-02-09 1974-01-14 Hoffmann La Roche
US4105022A (en) * 1976-05-24 1978-08-08 Becton, Dickinson And Company Method of determining cardiac output by thermodilution principles and utilization of a catheter assembly
US4476877A (en) * 1982-08-16 1984-10-16 Gould Inc. Fluid temperature sensor
US4730623A (en) * 1985-06-14 1988-03-15 Lee Arnold St J Cardiac output estimation method and apparatus
US4704904A (en) * 1985-12-10 1987-11-10 Morrison-Knudsen Company, Inc. High temperature gas flow meter
US4704876A (en) * 1986-08-12 1987-11-10 Hill Ralph P Cryogenic refrigeration system
US4785823A (en) * 1987-07-21 1988-11-22 Robert F. Shaw Methods and apparatus for performing in vivo blood thermodilution procedures
US5174299A (en) * 1991-08-12 1992-12-29 Cardiac Pacemakers, Inc. Thermocouple-based blood flow sensor
US6726647B1 (en) * 1998-10-23 2004-04-27 Gambro Ab Method and device for measuring access flow
FR2836831B1 (fr) * 2002-03-07 2004-06-25 Centre Nat Rech Scient Combinaison chimiotherapie et antisens de la dna demethylase
EP1930035A1 (en) 2003-01-28 2008-06-11 Gambro Lundia AB Apparatus for monitoring a vascular access
EP1691862A1 (en) * 2003-11-20 2006-08-23 Gambro Lundia AB Method, apparatus and software program for measurement of a parameter relating to a heart-lung system of a mammal.
WO2005061043A1 (en) * 2003-12-11 2005-07-07 Gambro Lundia Ab Switching device and apparatus for controlling flow of a fluid
ES2348407T3 (es) * 2005-05-18 2010-12-03 Gambro Lundia Ab Aparato para controlar el flujo sanguineo en un circuito extracorporeo.

Also Published As

Publication number Publication date
DE1773751A1 (de) 1971-08-05
NL6809490A (enExample) 1969-01-14
DE1773751B2 (de) 1976-08-12
BE717799A (enExample) 1969-01-08
US3561266A (en) 1971-02-09

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees
PCNP Patent ceased through non-payment of renewal fee