DE3571919D1 - Volumetric flow rate determination in conduits not directly accessible - Google Patents

Volumetric flow rate determination in conduits not directly accessible

Info

Publication number
DE3571919D1
DE3571919D1 DE8585905363T DE3571919T DE3571919D1 DE 3571919 D1 DE3571919 D1 DE 3571919D1 DE 8585905363 T DE8585905363 T DE 8585905363T DE 3571919 T DE3571919 T DE 3571919T DE 3571919 D1 DE3571919 D1 DE 3571919D1
Authority
DE
Germany
Prior art keywords
conduits
flow rate
volumetric flow
rate determination
directly accessible
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
DE8585905363T
Other languages
English (en)
Inventor
G Gilbert Johnston
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of DE3571919D1 publication Critical patent/DE3571919D1/de
Expired legal-status Critical Current

Links

Classifications

    • 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
    • A61B8/12—Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
    • A61B8/4444—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device related to the probe
    • A61B8/445—Details of catheter construction
    • 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
    • G01F1/66—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 measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G01F1/663—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 measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters by measuring Doppler frequency shift
DE8585905363T 1984-11-01 1985-10-16 Volumetric flow rate determination in conduits not directly accessible Expired DE3571919D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/667,333 US4637401A (en) 1984-11-01 1984-11-01 Volumetric flow rate determination in conduits not directly accessible
PCT/US1985/002026 WO1986002540A1 (en) 1984-11-01 1985-10-16 Volumetric flow rate determination in conduits not directly accessible

Publications (1)

Publication Number Publication Date
DE3571919D1 true DE3571919D1 (en) 1989-09-07

Family

ID=24677803

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585905363T Expired DE3571919D1 (en) 1984-11-01 1985-10-16 Volumetric flow rate determination in conduits not directly accessible

Country Status (6)

Country Link
US (1) US4637401A (de)
EP (1) EP0200758B1 (de)
JP (1) JPS62500703A (de)
CA (1) CA1241580A (de)
DE (1) DE3571919D1 (de)
WO (1) WO1986002540A1 (de)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4802490A (en) * 1984-11-01 1989-02-07 Johnston G Gilbert Catheter for performing volumetric flow rate determination in intravascular conduits
US4733669A (en) * 1985-05-24 1988-03-29 Cardiometrics, Inc. Blood flow measurement catheter
US4856529A (en) * 1985-05-24 1989-08-15 Cardiometrics, Inc. Ultrasonic pulmonary artery catheter and method
US4665925A (en) * 1985-09-13 1987-05-19 Pfizer Hospital Products Group, Inc. Doppler catheter
US4889128A (en) * 1985-09-13 1989-12-26 Pfizer Hospital Products Doppler catheter
US4817624A (en) * 1985-12-20 1989-04-04 The General Hospital Corporation Mini-bolus technique for thermodilution cardiac output measurements
US5350395A (en) * 1986-04-15 1994-09-27 Yock Paul G Angioplasty apparatus facilitating rapid exchanges
JP2653792B2 (ja) * 1986-07-18 1997-09-17 ハウメディカ・インコーポレーテッド 血液速度測定ワイヤガイド
WO1988006426A1 (en) * 1987-03-05 1988-09-07 Terumo Kabushiki Kaisha Apparatus for measuring cardiac output
NL8701536A (nl) * 1987-06-30 1989-01-16 Joannes Hendricus Aloys Heuvel Werkwijze voor het uitvoeren van haemodynamische metingen bij een patient en daarbij toegepaste strominggeleide balloncatheter.
US4869263A (en) * 1988-02-04 1989-09-26 Cardiometrics, Inc. Device and method for measuring volumetric blood flow in a vessel
US5078148A (en) * 1988-10-05 1992-01-07 Cardiometrics, Inc. Apparatus and method for continuously measuring volumetric blood flow using multiple transducers and catheter for use therewith
US5121749A (en) * 1988-10-05 1992-06-16 Cardiometrics, Inc. Position in dependent volumetric flow measuring apparatus
US5109861A (en) * 1989-04-28 1992-05-05 Thomas Jefferson University Intravascular, ultrasonic imaging catheters and methods for making same
US5190045A (en) * 1989-09-28 1993-03-02 Frazin Leon J Method and device for doppler-guided and imaged retrograde catheterization
US5038789A (en) * 1989-09-28 1991-08-13 Frazin Leon J Method and device for doppler-guided retrograde catheterization
US5220924A (en) * 1989-09-28 1993-06-22 Frazin Leon J Doppler-guided retrograde catheterization using transducer equipped guide wire
US5125410A (en) * 1989-10-13 1992-06-30 Olympus Optical Co., Ltd. Integrated ultrasonic diagnosis device utilizing intra-blood-vessel probe
US5108369A (en) * 1990-03-15 1992-04-28 Diagnostic Devices Group, Limited Dual-diameter multifunction catheter
US5254112A (en) * 1990-10-29 1993-10-19 C. R. Bard, Inc. Device for use in laser angioplasty
US5259837A (en) * 1990-12-27 1993-11-09 Wormer Mark E Van Acoustically enhanced catheter
US5139020A (en) * 1991-03-08 1992-08-18 Telectronics Pacing Systems, Inc. Method and apparatus for controlling the hemodynamic state of a patient based on systolic time interval measurements detecting using doppler ultrasound techniques
US5193546A (en) * 1991-05-15 1993-03-16 Alexander Shaknovich Coronary intravascular ultrasound imaging method and apparatus
US5226421A (en) * 1992-03-06 1993-07-13 Cardiometrics, Inc. Doppler elongate flexible member having an inflatable balloon mounted thereon
US5271406A (en) * 1992-05-22 1993-12-21 Diagnostic Devices Group, Limited Low-profile ultrasonic transducer incorporating static beam steering
US5453575A (en) * 1993-02-01 1995-09-26 Endosonics Corporation Apparatus and method for detecting blood flow in intravascular ultrasonic imaging
CA2114988A1 (en) * 1993-02-05 1994-08-06 Matthew O'boyle Ultrasonic angioplasty balloon catheter
US5433205A (en) * 1994-04-08 1995-07-18 Visveshwara; Nadarasa Method of optimizing ventilation perfusion match
DK172149B1 (da) * 1994-11-15 1997-12-01 Rhinometrics A S Apparat til undersøgelse og måling af indsnævringer eller passager i organiske kaviteter ved hjælp af akustisk reflektometri
US5667489A (en) * 1995-02-21 1997-09-16 Kraff; Colman Ross Expansile surgical sleeve apparatus and method for using same
US6036707A (en) * 1996-03-07 2000-03-14 Devices For Vascular Intervention Catheter device having a selectively flexible housing
US6589182B1 (en) 2001-02-12 2003-07-08 Acuson Corporation Medical diagnostic ultrasound catheter with first and second tip portions
US20030191396A1 (en) * 2003-03-10 2003-10-09 Sanghvi Narendra T Tissue treatment method and apparatus
US20050261588A1 (en) * 2004-05-21 2005-11-24 Makin Inder Raj S Ultrasound medical system
US20070016069A1 (en) 2005-05-06 2007-01-18 Sorin Grunwald Ultrasound sensor
US20090118612A1 (en) 2005-05-06 2009-05-07 Sorin Grunwald Apparatus and Method for Vascular Access
EP2170162B1 (de) 2007-06-26 2017-08-23 Vasonova, Inc. Vorrichtung zur führung und positionierung eines endovaskulären gerätes mithilfe physiologischer parameter
EP2637568B1 (de) 2010-11-08 2017-04-12 Vasonova, Inc. Endovaskuläres navigationssystem
JP6185048B2 (ja) 2012-05-07 2017-08-23 バソノバ・インコーポレイテッドＶａｓｏｎｏｖａ， Ｉｎｃ． 上大静脈区域及び大静脈心房接合部の検出のためのシステム及び方法
GB201604873D0 (en) 2016-03-22 2016-05-04 Imp Innovations Ltd Fluid flow analysis

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3359974A (en) * 1963-10-07 1967-12-26 Hassan H Khalil Device for the thermal determination of cardiac volumetric performance
US3347224A (en) * 1964-05-26 1967-10-17 Brandon L Adams Apparatus and method for measuring cardiac output
US3443433A (en) * 1965-06-28 1969-05-13 Beckman Instruments Inc Flowmeter
US3430625A (en) * 1965-10-23 1969-03-04 Mennen Greatbatch Electronics Ultrasonic flowmeter for measuring blood flow
FR1532340A (fr) * 1967-04-06 1968-07-12 Comp Generale Electricite Dispositif de mesure de la largeur d'une cavité du système circulatoire
NL165926C (nl) * 1971-04-21 1981-06-15 Philips Nv Inrichting voor het meten van de stroomsnelheid van vloeistoffen.
US3726269A (en) * 1971-11-24 1973-04-10 W Webster Cardiovascular catheter for thermal dilution measurement
US3938502A (en) * 1972-02-22 1976-02-17 Nicolaas Bom Apparatus with a catheter for examining hollow organs or bodies with the ultrasonic waves
US3896373A (en) * 1972-11-30 1975-07-22 Stein Paul D Method and apparatus for determining cross-sectional area of a blood conduit and volumetric flow therethrough
US3995623A (en) * 1974-12-23 1976-12-07 American Hospital Supply Corporation Multipurpose flow-directed catheter
US3985123A (en) * 1975-07-17 1976-10-12 Avco Everett Research Laboratory, Inc. Method and means for monitoring cardiac output
US4142412A (en) * 1976-05-12 1979-03-06 Sutures Inc. Doppler flow meter and method
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
US4024873A (en) * 1976-05-24 1977-05-24 Becton, Dickinson And Company Balloon catheter assembly
SU605608A1 (ru) * 1976-06-30 1978-05-05 Предприятие П/Я -2616 Способ исследовани ветвей магистральных кровеносных сосудов
DE2758039C3 (de) * 1977-12-24 1981-10-22 Chmiel, Horst, Prof. Dr.-Ing., 7250 Leonberg Vorrichtung zur fortlaufenden und quantitativen Bestimmung der hämodynamischen Parameter wie Blutströmungsgeschwindigkeit, Blutdruck, Herzschlag-Volumen
US4232373A (en) * 1978-04-14 1980-11-04 Regents For Education Of The State Of Rhode Island Compensation of fluidic transducers
US4237729A (en) * 1978-06-02 1980-12-09 Howmedica, Inc. Doppler flow meter
US4259870A (en) * 1979-02-26 1981-04-07 Howmedica Inc. Doppler method of measuring flow
US4299226A (en) * 1979-08-08 1981-11-10 Banka Vidya S Coronary dilation method
US4319580A (en) * 1979-08-28 1982-03-16 The Board Of Regents Of The University Of Washington Method for detecting air emboli in the blood in an intracorporeal blood vessel
US4329993A (en) * 1980-06-18 1982-05-18 American Hospital Supply Corporation Catheter with trans-luminal electrical conductor

Also Published As

Publication number Publication date
EP0200758A1 (de) 1986-11-12
JPS62500703A (ja) 1987-03-26
US4637401A (en) 1987-01-20
CA1241580A (en) 1988-09-06
EP0200758B1 (de) 1989-08-02
WO1986002540A1 (en) 1986-05-09

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee