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 druckfühlerInfo
- 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
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)
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) |
Families Citing this family (51)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6477284B1 (en) * | 1999-06-14 | 2002-11-05 | Nec Corporation | Photo-electric combined substrate, optical waveguide and manufacturing process therefor |
US6672172B2 (en) * | 2000-01-31 | 2004-01-06 | Radi Medical Systems Ab | Triggered flow measurement |
SE0001213D0 (sv) * | 2000-04-04 | 2000-04-04 | Patrik Melvaas | Sensing device |
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 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62207435A (ja) * | 1986-03-07 | 1987-09-11 | テルモ株式会社 | 心拍出量測定用カテ−テル |
US4850358A (en) * | 1986-11-14 | 1989-07-25 | Millar Instruments, Inc. | Method and assembly for introducing multiple devices into a biological vessel |
SE506135C2 (sv) * | 1990-07-11 | 1997-11-17 | Radi Medical Systems | Sensor- och ledarkonstruktion |
AU2799492A (en) * | 1991-11-02 | 1993-06-07 | Jordan Kent Metering Systems Limited | Time-of-flight flow measurement with secondary fluid injected as thermal tracer |
DE4219454C2 (de) * | 1992-06-13 | 1995-09-28 | Bosch Gmbh Robert | Massenflußsensor |
US5873835A (en) * | 1993-04-29 | 1999-02-23 | Scimed Life Systems, Inc. | Intravascular pressure and flow sensor |
US5447073A (en) * | 1994-02-04 | 1995-09-05 | The Foxboro Company | Multimeasurement replaceable vortex sensor |
US5692510A (en) * | 1995-09-07 | 1997-12-02 | Technion Research And Development Foundation Ltd. | Determining coronary blood flow by cardiac thermography in open chest conditions |
SE9600334D0 (sv) * | 1996-01-30 | 1996-01-30 | Radi Medical Systems | Combined flow, pressure and temperature sensor |
US5957912A (en) * | 1998-04-16 | 1999-09-28 | Camino Neurocare, Inc. | Catheter having distal stylet opening and connector |
-
1998
- 1998-05-06 US US09/073,061 patent/US6089103A/en not_active Expired - Lifetime
-
1999
- 1999-05-06 WO PCT/SE1999/000765 patent/WO1999056617A1/en active IP Right Grant
- 1999-05-06 EP EP99948540A patent/EP1076511B1/de not_active Expired - Lifetime
- 1999-05-06 ES ES99948540T patent/ES2229771T3/es not_active Expired - Lifetime
- 1999-05-06 DE DE69919347T patent/DE69919347T2/de not_active Expired - Lifetime
- 1999-05-06 JP JP2000546657A patent/JP3692035B2/ja not_active Expired - Lifetime
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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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |