ES8100027A1 - Un metodo para determinar el gasto volumetrico de un fluido que pasa a traves de un conductor tal como una vena, median-te un unico transmisor-receptor - Google Patents

Un metodo para determinar el gasto volumetrico de un fluido que pasa a traves de un conductor tal como una vena, median-te un unico transmisor-receptor

Info

Publication number
ES8100027A1
ES8100027A1 ES488907A ES488907A ES8100027A1 ES 8100027 A1 ES8100027 A1 ES 8100027A1 ES 488907 A ES488907 A ES 488907A ES 488907 A ES488907 A ES 488907A ES 8100027 A1 ES8100027 A1 ES 8100027A1
Authority
ES
Spain
Prior art keywords
conduit
fluid
obtaining
sound field
volume flow
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
ES488907A
Other languages
English (en)
Other versions
ES488907A0 (es
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.)
MTG Divestitures LLC
Original Assignee
Howmedica Inc
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 Howmedica Inc filed Critical Howmedica Inc
Publication of ES488907A0 publication Critical patent/ES488907A0/es
Publication of ES8100027A1 publication Critical patent/ES8100027A1/es
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
    • 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
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Public Health (AREA)
  • Medical Informatics (AREA)
  • General Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • Hematology (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Measuring Volume Flow (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)

Abstract

METODO PARA LA MEDICION DEL FLUJO SANGUINEO EN EL SISTEMA CIRCULATORIO, POR DESVIACION DE FRECUENCIA MEDIANTE EL EFECTO DOPPLER DE IMPULSO ULTRASONICO. CONSISTE EN LA PRODUCCION Y TRANSMISION DE UN CAMPO ACUSTICO ULTRASONICO DEFINIDO, QUE ILUMINA EL AREA TOTAL SECCIONAL TRANSVERSAL DEL CONDUCTO, SELECCIONANDO LA DURACION DE LOS IMPULSOS DE EMISION Y PERIODO DE MUESTREO DE LA SEÑAL RECIBIDA DE MANERA QUE ESTA PROCEDA DE UNA REGION MUESTREADA, NORMAL A LA DIRECCION DE PROPAGACION DEL CAMPO ACUSTICO TRANSMITIDO, OBTENIENDOSE DESPUES UNA SEÑAL DE EFECTO DOPPLER PROCEDENTE DE LA SEÑAL RECIBIDA. UN VOLUMEN CONOCIDO DEL FLUIDO QUE ESTA TOTALMENTE EN EL INTERIOR DEL CONDUCTO, SE MUESTREA Y SE OBTIENE EL RETORNO DE ENERGIA DE EFECTO DOPPLER PROCEDENTE DE LA SEÑAL RECIBIDA, DEL VOLUMEN CONOCIDO, PARA OBTENER UN FACTOR DE CALIBRACION. EL PRIMER MOMENTO DE LA SEÑAL TIPO DOPPLER RECIBIDA DESDE LA REGION MUESTREADA NORMAL, SE CALCULA, DIVIDIENDOSE DESPUES POR EL FACTOR DE CALIBRACION PARA OBTENER EL GASTO VOLUMETRICO A TRAVES DEL CONDUCTO. V
ES488907A 1979-02-26 1980-02-25 Un metodo para determinar el gasto volumetrico de un fluido que pasa a traves de un conductor tal como una vena, median-te un unico transmisor-receptor Expired ES8100027A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/015,404 US4259870A (en) 1979-02-26 1979-02-26 Doppler method of measuring flow

Publications (2)

Publication Number Publication Date
ES488907A0 ES488907A0 (es) 1980-09-16
ES8100027A1 true ES8100027A1 (es) 1980-09-16

Family

ID=21771212

Family Applications (1)

Application Number Title Priority Date Filing Date
ES488907A Expired ES8100027A1 (es) 1979-02-26 1980-02-25 Un metodo para determinar el gasto volumetrico de un fluido que pasa a traves de un conductor tal como una vena, median-te un unico transmisor-receptor

Country Status (7)

Country Link
US (1) US4259870A (es)
JP (1) JPS55143135A (es)
AU (1) AU5578780A (es)
DE (1) DE3007157A1 (es)
ES (1) ES8100027A1 (es)
FR (1) FR2449871A1 (es)
GB (1) GB2047404A (es)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4637401A (en) * 1984-11-01 1987-01-20 Johnston G Gilbert Volumetric flow rate determination in conduits not directly accessible
JPS61181472A (ja) * 1985-02-08 1986-08-14 福留　武朗 血管穿刺法及び穿刺具
FR2579765B1 (fr) * 1985-03-29 1988-05-06 Labo Electronique Physique Procede et appareil d'exploration de milieux par echographie ultrasonore
US4796634A (en) * 1985-08-09 1989-01-10 Lawrence Medical Systems, Inc. Methods and apparatus for monitoring cardiac output
US5000185A (en) 1986-02-28 1991-03-19 Cardiovascular Imaging Systems, Inc. Method for intravascular two-dimensional ultrasonography and recanalization
JPS6384521A (ja) * 1986-09-30 1988-04-15 ハウメディカ・インコーポレーテッド 血管形成手術用カテーテル
EP0286359A3 (en) * 1987-04-10 1991-12-11 Cardiometrics, Inc. Apparatus, system and method for measuring volumetric flow of blood in a vessel
FR2616914B1 (fr) * 1987-06-22 1991-12-06 Girard Jean Pierre Dispositif d'analyse par ultrasons
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
US5109861A (en) * 1989-04-28 1992-05-05 Thomas Jefferson University Intravascular, ultrasonic imaging catheters and methods for making same
US5240004A (en) * 1989-04-28 1993-08-31 Thomas Jefferson University Intravascular, ultrasonic imaging catheters and methods for making same
US5085220A (en) * 1989-10-05 1992-02-04 Spacelabs, Inc. Doppler flow sensing device and method for its use
US5119821A (en) * 1990-02-01 1992-06-09 Tuchler Robert E Diverging signal tandem doppler probe
US5108369A (en) * 1990-03-15 1992-04-28 Diagnostic Devices Group, Limited Dual-diameter multifunction catheter
DE4013702C2 (de) * 1990-04-28 1996-01-11 Christian Dipl Phys Heupts Verfahren zur Erfassung von Turbulenzen in der Atmosphäre sowie Einrichtung zur Durchführung des Verfahrens
US5156157A (en) * 1991-03-08 1992-10-20 Telectronics Pacing Systems, Inc. Catheter-mounted doppler ultrasound transducer and signal processor
GB9112854D0 (en) * 1991-06-14 1991-07-31 Skidmore Robert Flowmeters
US5339816A (en) * 1991-10-23 1994-08-23 Aloka Co., Ltd. Ultrasonic doppler blood flow monitoring system
WO1993008863A2 (en) * 1991-11-08 1993-05-13 Baxter International Inc. Transport catheter and ultrasound probe for use with same
JPH09243342A (ja) * 1996-03-07 1997-09-19 Ge Yokogawa Medical Syst Ltd 超音波画像表示方法および超音波診断装置
US6041662A (en) * 1996-09-06 2000-03-28 Endosonics Corporation Process and apparatus for the determination of true average peak velocity
FR2778075B1 (fr) 1998-04-30 2000-07-21 Bourjois Dispositif de presentation et de distribution d'une pluralite de produits
US6544181B1 (en) * 1999-03-05 2003-04-08 The General Hospital Corporation Method and apparatus for measuring volume flow and area for a dynamic orifice
EP1224436A1 (en) * 1999-10-29 2002-07-24 Universität Zürich Method of volumetric blood flow measurement
JP2006030041A (ja) * 2004-07-20 2006-02-02 Fuji Electric Systems Co Ltd クランプオン型ドップラー式超音波流速分布計
US20090043208A1 (en) * 2007-08-10 2009-02-12 Norwegian University Of Science And Technology Methods and devices for estimating blood flow characteristics
US20100016763A1 (en) * 2008-07-17 2010-01-21 Keilman George W Intraluminal fluid property status sensing system and method
US8181536B2 (en) * 2009-12-19 2012-05-22 Cameron International Corporation Ultrasonic Flow Meter including a transducer having conical face
US20130253872A1 (en) * 2012-03-20 2013-09-26 Thermo Fisher Scientific Inc. Flow meter calibration system
JP7061604B2 (ja) 2016-08-05 2022-04-28 サイモン メディカル アーエス 超音波血流モニタ方法
US11717255B2 (en) 2016-08-05 2023-08-08 Cimon Medical As Ultrasound blood-flow monitoring
IT202200014365A1 (it) 2022-07-07 2024-01-07 Giuseppe Nasso Catetere di polarizzazione elettrica per il calcolo della portata cardiaca sistemica in area critica

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2770795A (en) * 1951-03-30 1956-11-13 Raytheon Mfg Co Acoustic log
US3028752A (en) * 1959-06-02 1962-04-10 Curtiss Wright Corp Ultrasonic testing apparatus
FR1539652A (fr) * 1967-04-07 1968-09-20 Comp Generale Electricite Débitmètre enregistreur pour vaisseau sanguin
DE1816255C3 (de) * 1968-12-21 1973-11-22 Hoesch Werke Ag, 4600 Dortmund Verfahren zur zerstörungsfreien Prüfung von Schweißnahten mittels Ultra schallenergie
US3703652A (en) * 1970-02-25 1972-11-21 Mitsubishi Electric Corp Electroacoustic transducer
DE1758104A1 (es) * 1972-01-10
US3783967A (en) * 1972-02-24 1974-01-08 Us Health Focusing protective enclosure for ultrasonic transducer
GB1499981A (en) * 1974-01-03 1978-02-01 Nat Res Dev Doppler flowmeter
DE2461264C3 (de) * 1974-12-23 1978-06-01 Siemens Ag, 1000 Berlin Und 8000 Muenchen Vorrichtung für die Messung des Volumenstroms strömender Medien
US4067236A (en) * 1975-11-10 1978-01-10 Univ Leland Stanford Junior Method and system for unambiguous method of volume flow
US4142412A (en) * 1976-05-12 1979-03-06 Sutures Inc. Doppler flow meter and method

Also Published As

Publication number Publication date
JPS55143135A (en) 1980-11-08
US4259870A (en) 1981-04-07
AU5578780A (en) 1980-09-04
DE3007157A1 (de) 1980-09-04
ES488907A0 (es) 1980-09-16
FR2449871A1 (fr) 1980-09-19
GB2047404A (en) 1980-11-26

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