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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
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.)
Ceased
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
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.)
Ip2ipo Innovations Ltd
Original Assignee
Imperial Innovations 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
Application filed by Imperial Innovations Ltd filed Critical Imperial Innovations Ltd
Publication of WO2009037484A2 publication Critical patent/WO2009037484A2/en
Publication of WO2009037484A3 publication Critical patent/WO2009037484A3/en
Anticipated expiration legal-status Critical
Ceased 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
    • A61B5/0263—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 for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
    • 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 agents, 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 Ceased 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 Ceased 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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9201139B2 (en) 2010-06-08 2015-12-01 Kabushiki Kaisha Toshiba Ultrasonic diagnostic apparatus, ultrasonic image processing apparatus, and medical image diagnostic apparatus

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11412944B2 (en) 2015-06-15 2022-08-16 Cvr Medical Corporation 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 A method and device for measuring Dean vortex motion information

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 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9201139B2 (en) 2010-06-08 2015-12-01 Kabushiki Kaisha Toshiba Ultrasonic diagnostic apparatus, ultrasonic image processing apparatus, and medical image diagnostic apparatus

Also Published As

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

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