WO2009037484A3 - Flow in fluid conduits - Google Patents

Flow in fluid conduits Download PDF

Info

Publication number
WO2009037484A3
WO2009037484A3 PCT/GB2008/003199 GB2008003199W WO2009037484A3 WO 2009037484 A3 WO2009037484 A3 WO 2009037484A3 GB 2008003199 W GB2008003199 W GB 2008003199W WO 2009037484 A3 WO2009037484 A3 WO 2009037484A3
Authority
WO
WIPO (PCT)
Prior art keywords
flow
fluid conduits
fluid
conduit
measured
Prior art date
Application number
PCT/GB2008/003199
Other languages
French (fr)
Other versions
WO2009037484A2 (en
Inventor
Colin Gerald Caro
Nicholas Foin
Sigalony Florence Herve De
Gianfilippo Coppola
Jean Martial Mari
Original Assignee
Imp Innovations Ltd
Colin Gerald Caro
Nicholas Foin
Sigalony Florence Herve De
Gianfilippo Coppola
Jean Martial Mari
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 Imp Innovations Ltd, Colin Gerald Caro, Nicholas Foin, Sigalony Florence Herve De, Gianfilippo Coppola, Jean Martial Mari filed Critical Imp Innovations Ltd
Publication of WO2009037484A2 publication Critical patent/WO2009037484A2/en
Publication of WO2009037484A3 publication Critical patent/WO2009037484A3/en

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 pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/026—Measuring blood flow
    • A61B5/0263—Measuring blood flow using NMR
    • 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 pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/02007—Evaluating blood vessel condition, e.g. elasticity, compliance
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/06—Measuring blood flow
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/13—Tomography
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/48—Diagnostic techniques
    • A61B8/481—Diagnostic techniques involving the use of contrast agent, e.g. microbubbles introduced into the bloodstream
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves  involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Public Health (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Hematology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Physiology (AREA)
  • Cardiology (AREA)
  • Vascular Medicine (AREA)
  • Measuring Volume Flow (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Abstract

A method of and apparatus for detecting the degree of stagnation in fluid flow in fluid conduits in the human or animal body. Flow of a fluid through a part of the flow conduit is monitored. The residence time of contrast agent in the flow conduit is measured, or alternatively the secondary flow pattern in the conduit is imaged and oscillation of the flow pattern or asymmetry of Dean vortices in the flow pattern is measured.
PCT/GB2008/003199 2007-09-20 2008-09-22 Flow in fluid conduits WO2009037484A2 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
GB0718378A GB0718378D0 (en) 2007-09-20 2007-09-20 Flow in fluid conduits
GB0718378.3 2007-09-20
US4400908P 2008-04-10 2008-04-10
GB0806560.9 2008-04-10
GB0806560A GB0806560D0 (en) 2007-09-20 2008-04-10 Flow in fluid conduits
US60/044,009 2008-04-10

Publications (2)

Publication Number Publication Date
WO2009037484A2 WO2009037484A2 (en) 2009-03-26
WO2009037484A3 true WO2009037484A3 (en) 2009-06-11

Family

ID=38670243

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2008/003199 WO2009037484A2 (en) 2007-09-20 2008-09-22 Flow in fluid conduits

Country Status (2)

Country Link
GB (2) GB0718378D0 (en)
WO (1) WO2009037484A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5632203B2 (en) * 2010-06-08 2014-11-26 株式会社東芝 Ultrasonic diagnostic apparatus, ultrasonic image processing apparatus, and ultrasonic image processing program
EP3307147B1 (en) * 2015-06-15 2021-12-29 CVR Global, Inc. Non-invasive method for measuring sound frequencies created by vortices in a carotid artery
WO2017091746A1 (en) 2015-11-24 2017-06-01 The Regents Of The University Of California Mapping and quantifying blood stasis and thrombus risk in the heart
US11471101B2 (en) 2018-04-05 2022-10-18 The Regents Of The University Of California Mapping and quantifying shear stress and hemolysis in patients having LVADS
CN112231869B (en) * 2020-09-21 2023-06-16 江苏大学镇江流体工程装备技术研究院 Dien vortex movement information measuring method and device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007069156A1 (en) * 2005-12-14 2007-06-21 Koninklijke Philips Electronics, N.V. Transducer cuff for guidance and application of high intensity focused ultrasound for control of bleeding due to severed limbs

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007069156A1 (en) * 2005-12-14 2007-06-21 Koninklijke Philips Electronics, N.V. Transducer cuff for guidance and application of high intensity focused ultrasound for control of bleeding due to severed limbs

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
MYERS J G ET AL: "Factors influencing blood flow patterns in the human right coronary artery", ANNALS OF BIOMEDICAL ENGINEERING BIOMED. ENG. SOC USA, vol. 29, no. 2, February 2001 (2001-02-01), pages 109 - 120, XP002508497, ISSN: 0090-6964 *
STEINKE W ET AL: "Variability of flow patterns in the normal carotid bifurcation.", ATHEROSCLEROSIS OCT 1990, vol. 84, no. 2-3, October 1990 (1990-10-01), pages 121 - 127, XP002508496, ISSN: 0021-9150 *
YANG G Z ET AL: "Automatic tracking of vortical flow patterns with MR velocity mapping", IMAGE PROCESSING AND ITS APPLICATIONS, 1999. SEVENTH INTERNATIONAL CON FERENCE ON (CONF. PUBL. NO. 465) MANCHESTER, UK 13-15 JULY 1999, LONDON, UK,IEE, UK, vol. 1, 13 July 1999 (1999-07-13), pages 407 - 410, XP006501277, ISBN: 978-0-85296-717-1 *

Also Published As

Publication number Publication date
GB0718378D0 (en) 2007-10-31
WO2009037484A2 (en) 2009-03-26
GB0806560D0 (en) 2008-05-14

Similar Documents

Publication Publication Date Title
WO2009044155A3 (en) Monitoring the flow of fluid
BRPI0717214A2 (en) Diagnostic method, use of a low flow meter device, system for administering hemodynamic status and renal function of a body and apparatus for administering hemodynamic status and renal function of a body "
WO2009037484A3 (en) Flow in fluid conduits
EP2105715A4 (en) Flow rate measurement device, program for the flow rate measurement device, flow rate measurement method, and fluid supply system
EP2200548A4 (en) Fluid flowing device and method for tissue diagnosis or therapy
EP2141464A4 (en) Flow rate measuring device and program for the device, method of measuring flow rate, and fluid feed system
EP1491866A4 (en) Flow rate measuring method and flowmeter, flow rate measuring section package used for them and flow rate measuring unit using them, and piping leakage inspection device using flowmeter
MX2008014821A (en) Fluid diversion measurement methods and systems.
MX2009011246A (en) Device system and method for monitoring and controlling blood analyte levels.
PL2068972T3 (en) Device and method for determining a dialysis fluid flow rate or blood flow rate for extracorporeal blood treatment
WO2011008822A3 (en) Apparatus, systems and methods for measuring flow and pressure within a vessel
MY152381A (en) Downhole annular measurement system and method
BRPI0909616A2 (en) system for providing reduced pressure treatment at a patient's tissue site, apparatus for providing reduced pressure treatment at a patient's tissue site and method of manufacturing an apparatus for providing reduced pressure treatment for a patient's tissue site patient
DE602007002175D1 (en) DRAINAGE DEVICE, AIRPLANE AND METHOD FOR DRAINING A FLUID BETWEEN THE EXTERNAL SKIN AND THE INTERIOR CLOTHING OF AN AIRCRAFT
BRPI0419215A (en) Method and apparatus for determining flow pressure using density information
WO2007087362A3 (en) Devices, systems and methods for determining sizes of vessels
WO2007117570A3 (en) Data mining system for noninvasive intracranial pressure assessment
GB2466153A (en) Noninvasive fluid density and viscosity measurement
WO2013088427A8 (en) Pipeline inspection apparatus for the internal inspection of pipelines
GB2476623A (en) Extravasation detection for fluid injection using dopppler ultrasound blood flow measurement
BR112012002594A2 (en) device and method for detecting blood or blood constituents in the fluid system of an extracorporeal blood treatment device
WO2012106474A3 (en) Methods and systems for evaluating the integrity of a uterine cavity
SI2034278T1 (en) Method and device for determining the flow rate of flowing water
ECSP10010565A (en) METHOD, APPARATUS, AND SYSTEM FOR CHARACTERIZING THE FLOW OF A TWO-PHASE FLUID IN AN INJECTION WELL
WO2010133348A3 (en) System, method and apparatus for measuring multiphase flow

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08806354

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08806354

Country of ref document: EP

Kind code of ref document: A2