DE3788370D1 - Dopplersystem zur Bluttströmungsmessung während eines Herz-Lungen-Nebenschlusses und Kammerunterstützung. - Google Patents

Dopplersystem zur Bluttströmungsmessung während eines Herz-Lungen-Nebenschlusses und Kammerunterstützung.

Info

Publication number
DE3788370D1
DE3788370D1 DE87304221T DE3788370T DE3788370D1 DE 3788370 D1 DE3788370 D1 DE 3788370D1 DE 87304221 T DE87304221 T DE 87304221T DE 3788370 T DE3788370 T DE 3788370T DE 3788370 D1 DE3788370 D1 DE 3788370D1
Authority
DE
Germany
Prior art keywords
blood flow
flow during
measuring blood
cardiopulmonary bypass
during cardiopulmonary
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 - Fee Related
Application number
DE87304221T
Other languages
English (en)
Other versions
DE3788370T2 (de
Inventor
Lloyd C C O Minnesota Hubbard
Earl W C O Minnesota M Clausen
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of DE3788370D1 publication Critical patent/DE3788370D1/de
Application granted granted Critical
Publication of DE3788370T2 publication Critical patent/DE3788370T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Measuring Volume Flow (AREA)
DE3788370T 1986-05-14 1987-05-12 Dopplersystem zur Bluttströmungsmessung während eines Herz-Lungen-Nebenschlusses und Kammerunterstützung. Expired - Fee Related DE3788370T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/863,128 US4690002A (en) 1986-05-14 1986-05-14 Doppler system for measurement of blood flow during cardiopulmonary bypass and ventricular assist

Publications (2)

Publication Number Publication Date
DE3788370D1 true DE3788370D1 (de) 1994-01-20
DE3788370T2 DE3788370T2 (de) 1994-06-09

Family

ID=25340334

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3788370T Expired - Fee Related DE3788370T2 (de) 1986-05-14 1987-05-12 Dopplersystem zur Bluttströmungsmessung während eines Herz-Lungen-Nebenschlusses und Kammerunterstützung.

Country Status (5)

Country Link
US (1) US4690002A (de)
EP (1) EP0246073B1 (de)
JP (1) JPH0728866B2 (de)
AU (1) AU588997B2 (de)
DE (1) DE3788370T2 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4989609A (en) * 1989-01-26 1991-02-05 Minnesota Mining And Manufacturing Company Doppler blood flow system and method using special zero flow rate analysis
US4993418A (en) * 1989-01-26 1991-02-19 Minnesota Mining And Manufacturing Company Doppler blood flow system and method using low frequency noise signal processing
EP0387728A1 (de) * 1989-03-16 1990-09-19 Lang Apparatebau Gmbh Einrichtung zur Dosierüberwachung eines Cyanoacrylat-Klebstoffes oder anaeroben Klebstoffes
US4989446A (en) * 1990-01-23 1991-02-05 Dynatek Laboratories, Inc. Ultrasound calibrator
JPH04236947A (ja) * 1991-01-18 1992-08-25 Aloka Co Ltd 術中超音波探触子
US5171212A (en) * 1991-02-08 1992-12-15 Minnesota Mining And Manufacturing Company Blood pumping system with backflow warning
DE4216504C2 (de) * 1992-05-19 2002-01-31 Schubert & Salzer Control Syst Verfahren zur Messung des Volumenstroms von Flüssigkeiten
US5368554A (en) * 1992-11-20 1994-11-29 Minnesota Mining And Manufacturing Company Blood pumping system with selective backflow warning
US5564420A (en) * 1995-04-14 1996-10-15 Minnesota Mining And Manufacturing Company Medical device with EMI detection and cancellation
US7004924B1 (en) * 1998-02-11 2006-02-28 Nxstage Medical, Inc. Methods, systems, and kits for the extracorporeal processing of blood
US6408699B1 (en) * 1998-10-06 2002-06-25 Polysonics, Inc. Multiple frequency Doppler flow meter
US6245007B1 (en) 1999-01-28 2001-06-12 Terumo Cardiovascular Systems Corporation Blood pump
DE102010034553A1 (de) * 2010-08-17 2012-03-08 Fresenius Medical Care Deutschland Gmbh Vorrichtung zur Ermittlung und/oder Überwachung von Fremdstrukturen in einem Fluid oder einem Fluidstrom sowie Verfahren hierzu
WO2018017563A1 (en) 2016-07-19 2018-01-25 Heartware, Inc. Ventricular assist devices and integrated sensors thereof
EP3856015A4 (de) * 2018-09-27 2022-05-18 Gauss Surgical, Inc. Systeme und verfahren zur inline-fluidcharakterisierung

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3741014A (en) * 1970-06-25 1973-06-26 Tokyo Keiki Kk Ultrasonic current meter
CA1021052A (en) * 1973-02-16 1977-11-15 Pierre-Andre Grandchamp Method and apparatus for the measurement of a fluid-flow velocity profile
GB1418181A (en) * 1973-02-27 1975-12-17 Cole E M Ultrasonic detection of inclusions in a fluid flowing within a tube
AT343265B (de) * 1973-08-16 1978-05-26 Siemens Ag Gerat fur die messung der geschwindigkeit von insbesondere in leitungen stromenden medien
GB1499981A (en) * 1974-01-03 1978-02-01 Nat Res Dev Doppler flowmeter
US4062237A (en) * 1976-05-07 1977-12-13 Fox Martin D Crossed beam ultrasonic flowmeter
US4142412A (en) * 1976-05-12 1979-03-06 Sutures Inc. Doppler flow meter and method
US4122713A (en) * 1977-05-19 1978-10-31 Medtronic, Inc. Liquid velocity measuring system
US4147059A (en) * 1978-01-09 1979-04-03 Medtronic, Inc. Digital liquid velocity measuring system
US4145925A (en) * 1978-01-09 1979-03-27 Medtronic, Inc. Digital liquid velocity measuring system
US4265126A (en) * 1979-06-15 1981-05-05 General Electric Company Measurement of true blood velocity by an ultrasound system
US4257278A (en) * 1979-08-24 1981-03-24 General Electric Company Quantitative volume blood flow measurement by an ultrasound imaging system featuring a Doppler modality
DE3170086D1 (en) * 1980-02-29 1985-05-30 Nat Res Dev Apparatus for measuring the cross-sectional area of a duct and the volume flow rate of fluid in the duct
US4333353A (en) * 1980-07-28 1982-06-08 Joseph Baumoel Two-transducer Doppler flowmeter with swept oscillator
US4402231A (en) * 1981-04-09 1983-09-06 Fischer & Porter Company AGC Amplifier for ultrasonic measuring system
US4391149A (en) * 1981-05-15 1983-07-05 Fischer & Porter Company Doppler-type ultrasonic flowmeter
US4413531A (en) * 1981-11-13 1983-11-08 The United States Of America As Represented By The United States Department Of Energy Doppler flowmeter
JPS5920149A (ja) * 1982-07-28 1984-02-01 富士通株式会社 超音波パルスドプラ血流計

Also Published As

Publication number Publication date
AU7193987A (en) 1987-11-19
JPS6326538A (ja) 1988-02-04
EP0246073B1 (de) 1993-12-08
AU588997B2 (en) 1989-09-28
DE3788370T2 (de) 1994-06-09
EP0246073A3 (en) 1990-05-16
US4690002A (en) 1987-09-01
EP0246073A2 (de) 1987-11-19
JPH0728866B2 (ja) 1995-04-05

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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