DE69919347D1 - System zur strömungsmessung in engen kanälen beinhaltend einen temperatur- und einen druckfühler - Google Patents

System zur strömungsmessung in engen kanälen beinhaltend einen temperatur- und einen druckfühler

Info

Publication number
DE69919347D1
DE69919347D1 DE69919347T DE69919347T DE69919347D1 DE 69919347 D1 DE69919347 D1 DE 69919347D1 DE 69919347 T DE69919347 T DE 69919347T DE 69919347 T DE69919347 T DE 69919347T DE 69919347 D1 DE69919347 D1 DE 69919347D1
Authority
DE
Germany
Prior art keywords
temperature
pressure sensor
measurement system
flow measurement
channels including
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 - Lifetime
Application number
DE69919347T
Other languages
English (en)
Other versions
DE69919347T2 (de
Inventor
Leif Smith
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.)
St Jude Medical Systems AB
Original Assignee
Radi Medical Systems AB
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 Radi Medical Systems AB filed Critical Radi Medical Systems AB
Publication of DE69919347D1 publication Critical patent/DE69919347D1/de
Application granted granted Critical
Publication of DE69919347T2 publication Critical patent/DE69919347T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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 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
    • A61B5/0275—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
    • G01F1/704—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
    • G01F1/708—Measuring the time taken to traverse a fixed distance
    • G01F1/7084—Measuring the time taken to traverse a fixed distance using thermal detecting arrangements

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Cardiology (AREA)
  • Physiology (AREA)
  • General Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Fluid Mechanics (AREA)
  • Medical Informatics (AREA)
  • Hematology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Measuring Volume Flow (AREA)
  • Measuring Fluid Pressure (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
DE69919347T 1998-05-06 1999-05-06 System zur strömungsmessung in engen kanälen beinhaltend einen temperatur- und einen druckfühler Expired - Lifetime DE69919347T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US73061 1998-05-06
US09/073,061 US6089103A (en) 1998-05-06 1998-05-06 Method of flow measurements
PCT/SE1999/000765 WO1999056617A1 (en) 1998-05-06 1999-05-06 Method for measuring flow in narrow channels, comprising a temperature and a pressure sensor

Publications (2)

Publication Number Publication Date
DE69919347D1 true DE69919347D1 (de) 2004-09-16
DE69919347T2 DE69919347T2 (de) 2005-09-08

Family

ID=22111483

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69919347T Expired - Lifetime DE69919347T2 (de) 1998-05-06 1999-05-06 System zur strömungsmessung in engen kanälen beinhaltend einen temperatur- und einen druckfühler

Country Status (6)

Country Link
US (1) US6089103A (de)
EP (1) EP1076511B1 (de)
JP (1) JP3692035B2 (de)
DE (1) DE69919347T2 (de)
ES (1) ES2229771T3 (de)
WO (1) WO1999056617A1 (de)

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US6585660B2 (en) 2001-05-18 2003-07-01 Jomed Inc. Signal conditioning device for interfacing intravascular sensors having varying operational characteristics to a physiology monitor
DE60238369D1 (de) 2001-05-23 2011-01-05 Radi Medical Systems Interaktives Messsystem
US7018336B2 (en) * 2001-12-27 2006-03-28 Medtronic Minimed, Inc. Implantable sensor flush sleeve
US6892095B2 (en) * 2001-12-31 2005-05-10 Cardiac Pacemakers, Inc. Method and apparatus for monitoring left ventricular work or power
US6623436B2 (en) * 2002-02-20 2003-09-23 Transonic Systems, Inc. Retrograde catheter with reduced injectate induced temperature offset
US6663570B2 (en) 2002-02-27 2003-12-16 Volcano Therapeutics, Inc. Connector for interfacing intravascular sensors to a physiology monitor
US7134994B2 (en) 2002-05-20 2006-11-14 Volcano Corporation Multipurpose host system for invasive cardiovascular diagnostic measurement acquisition and display
US8277386B2 (en) 2004-09-27 2012-10-02 Volcano Corporation Combination sensor guidewire and methods of use
US7152490B1 (en) 2005-08-15 2006-12-26 Daniel Measurement And Control, Inc. Methods for determining transducer delay time and transducer separation in ultrasonic flow meters
US7775988B2 (en) * 2005-09-30 2010-08-17 Radi Medical Systems Ab Method for determining the blood flow in a coronary artery
DE102005050142B3 (de) * 2005-10-19 2007-07-05 Up Management Gmbh & Co Med-Systems Kg Vorrichtung für die Messung der Injektionsdauer
CA2734698C (en) * 2008-09-11 2012-05-01 Acist Medical Systems, Inc. Physiological sensor delivery device and method
JP2012502773A (ja) * 2008-09-22 2012-02-02 ディーセラピューティクス・エルエルシー 血流予備量比測定のための装置、システムおよび手法
WO2012155040A1 (en) 2011-05-11 2012-11-15 Acist Medical Systems, Inc. Intravascular sensing method and system
CA2836790C (en) 2011-05-31 2019-04-23 Desmond Adler Multimodal imaging system, apparatus, and methods
US9314584B1 (en) 2011-06-27 2016-04-19 Bayer Healthcare Llc Method and apparatus for fractional flow reserve measurements
US10648918B2 (en) 2011-08-03 2020-05-12 Lightlab Imaging, Inc. Systems, methods and apparatus for determining a fractional flow reserve (FFR) based on the minimum lumen area (MLA) and the constant
US10888232B2 (en) 2011-08-20 2021-01-12 Philips Image Guided Therapy Corporation Devices, systems, and methods for assessing a vessel
US9339348B2 (en) 2011-08-20 2016-05-17 Imperial Colege of Science, Technology and Medicine Devices, systems, and methods for assessing a vessel
EP2856098B1 (de) 2012-05-25 2019-10-16 Vascular Imaging Corporation Faseroptischer drucksensor
SG2012080636A (en) * 2012-10-31 2014-05-29 Eng Hwee Freddie Lee Intravenous (iv) infusion monitoring method and system
US9757591B2 (en) 2013-02-11 2017-09-12 Bayer Healthcare Llc Methods and systems for monitoring an automated infusion system
CN104902811B (zh) 2013-07-01 2019-08-16 山东苏黎世医疗科技有限公司 用于血管内的测量的装置和方法
US10835183B2 (en) 2013-07-01 2020-11-17 Zurich Medical Corporation Apparatus and method for intravascular measurements
US10327645B2 (en) 2013-10-04 2019-06-25 Vascular Imaging Corporation Imaging techniques using an imaging guidewire
US20150112215A1 (en) * 2013-10-18 2015-04-23 Boston Scientific Scimed, Inc. Catheter systems and methods for determining blood flow rates with acoustic dilution
US10130269B2 (en) 2013-11-14 2018-11-20 Medtronic Vascular, Inc Dual lumen catheter for providing a vascular pressure measurement
US9877660B2 (en) 2013-11-14 2018-01-30 Medtronic Vascular Galway Systems and methods for determining fractional flow reserve without adenosine or other pharmalogical agent
US10537255B2 (en) 2013-11-21 2020-01-21 Phyzhon Health Inc. Optical fiber pressure sensor
US9913585B2 (en) 2014-01-15 2018-03-13 Medtronic Vascular, Inc. Catheter for providing vascular pressure measurements
EP3861928B1 (de) 2014-04-04 2024-03-27 St. Jude Medical Systems AB Diagnostisches system für intravaskulären druck und flussdaten
US10244951B2 (en) 2014-06-10 2019-04-02 Acist Medical Systems, Inc. Physiological sensor delivery device and method
US10201284B2 (en) 2014-06-16 2019-02-12 Medtronic Vascular Inc. Pressure measuring catheter having reduced error from bending stresses
US10973418B2 (en) 2014-06-16 2021-04-13 Medtronic Vascular, Inc. Microcatheter sensor design for minimizing profile and impact of wire strain on sensor
US11330989B2 (en) 2014-06-16 2022-05-17 Medtronic Vascular, Inc. Microcatheter sensor design for mounting sensor to minimize induced strain
US10080872B2 (en) 2014-11-04 2018-09-25 Abbott Cardiovascular Systems Inc. System and method for FFR guidewire recovery
US10258240B1 (en) 2014-11-24 2019-04-16 Vascular Imaging Corporation Optical fiber pressure sensor
US10194812B2 (en) 2014-12-12 2019-02-05 Medtronic Vascular, Inc. System and method of integrating a fractional flow reserve device with a conventional hemodynamic monitoring system
US10350385B2 (en) * 2016-05-23 2019-07-16 Regents Of The University Of Minnesota Thermodilution catheter
EP3451908A4 (de) 2016-06-29 2019-11-06 Piccolo Medical, Inc. Vorrichtungen und verfahren zur vaskulären navigation, beurteilung und/oder diagnose
US11272850B2 (en) 2016-08-09 2022-03-15 Medtronic Vascular, Inc. Catheter and method for calculating fractional flow reserve
US11330994B2 (en) 2017-03-08 2022-05-17 Medtronic Vascular, Inc. Reduced profile FFR catheter
US10646122B2 (en) 2017-04-28 2020-05-12 Medtronic Vascular, Inc. FFR catheter with covered distal pressure sensor and method of manufacture
CN110892487B (zh) 2017-06-08 2024-05-03 爱德华兹生命科学公司 辅助流体递送***和方法
US11219741B2 (en) 2017-08-09 2022-01-11 Medtronic Vascular, Inc. Collapsible catheter and method for calculating fractional flow reserve
US11235124B2 (en) 2017-08-09 2022-02-01 Medtronic Vascular, Inc. Collapsible catheter and method for calculating fractional flow reserve
WO2019203895A1 (en) 2018-04-20 2019-10-24 Acist Medical Systems, Inc. Assessment of a vessel
US11185244B2 (en) 2018-08-13 2021-11-30 Medtronic Vascular, Inc. FFR catheter with suspended pressure sensor

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US5957912A (en) * 1998-04-16 1999-09-28 Camino Neurocare, Inc. Catheter having distal stylet opening and connector

Also Published As

Publication number Publication date
JP2002513605A (ja) 2002-05-14
JP3692035B2 (ja) 2005-09-07
ES2229771T3 (es) 2005-04-16
WO1999056617A1 (en) 1999-11-11
US6089103A (en) 2000-07-18
DE69919347T2 (de) 2005-09-08
EP1076511A1 (de) 2001-02-21
EP1076511B1 (de) 2004-08-11

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