NO133573B - - Google Patents

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Publication number
NO133573B
NO133573B NO2847/71A NO284771A NO133573B NO 133573 B NO133573 B NO 133573B NO 2847/71 A NO2847/71 A NO 2847/71A NO 284771 A NO284771 A NO 284771A NO 133573 B NO133573 B NO 133573B
Authority
NO
Norway
Prior art keywords
magnetic field
blood flow
signal
amplifier
polarity
Prior art date
Application number
NO2847/71A
Other languages
English (en)
Norwegian (no)
Other versions
NO133573C (da
Inventor
H G Doll
H J Broner
Original Assignee
Doll Research
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 Doll Research filed Critical Doll Research
Publication of NO133573B publication Critical patent/NO133573B/no
Publication of NO133573C publication Critical patent/NO133573C/no

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/24Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/316Modalities, i.e. specific diagnostic methods
    • A61B5/318Heart-related electrical modalities, e.g. electrocardiography [ECG]
    • A61B5/346Analysis of electrocardiograms
    • A61B5/349Detecting specific parameters of the electrocardiograph cycle
    • A61B5/352Detecting R peaks, e.g. for synchronising diagnostic apparatus; Estimating R-R interval
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/02Detecting, 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
    • A61B5/026Measuring blood flow
    • A61B5/0265Measuring blood flow using electromagnetic means, e.g. electromagnetic flowmeter
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/56Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects
    • G01F1/58Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Cardiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Electromagnetism (AREA)
  • Hematology (AREA)
  • Physiology (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Measuring Volume Flow (AREA)
NO2847/71A 1970-08-24 1971-07-28 NO133573C (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US6624070A 1970-08-24 1970-08-24
US15869771A 1971-07-01 1971-07-01

Publications (2)

Publication Number Publication Date
NO133573B true NO133573B (da) 1976-02-16
NO133573C NO133573C (da) 1976-05-26

Family

ID=26746524

Family Applications (1)

Application Number Title Priority Date Filing Date
NO2847/71A NO133573C (da) 1970-08-24 1971-07-28

Country Status (15)

Country Link
US (1) US3759247A (da)
JP (1) JPS5516659B1 (da)
AT (1) AT321452B (da)
BE (1) BE771669A (da)
CA (1) CA980869A (da)
CH (1) CH530786A (da)
DE (1) DE2142211C3 (da)
DK (1) DK138578B (da)
FR (1) FR2105939A5 (da)
GB (1) GB1365129A (da)
IL (1) IL37407A (da)
NL (1) NL171016C (da)
NO (1) NO133573C (da)
SE (1) SE373278B (da)
SU (1) SU528853A3 (da)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3809070A (en) * 1971-07-01 1974-05-07 Doll Research Non-invasive electromagnetic bloodflow measuring system with rejection of noises
US3994285A (en) * 1974-12-17 1976-11-30 Doll Research, Inc. Revolving symmetrical magnet assembly and improved method of blood flow detection
US4037585A (en) * 1975-10-10 1977-07-26 Gildenberg Philip L Method of measuring blood flow by radiation
JPS5927566B2 (ja) * 1980-07-02 1984-07-06 日本光電工業株式会社 電磁血流計
US4721914A (en) * 1984-05-01 1988-01-26 The United States Of America As Represented By The United States Department Of Energy Apparatus for unilateral generation of a homogeneous magnetic field
US4676253A (en) * 1985-07-18 1987-06-30 Doll Medical Research, Inc. Method and apparatus for noninvasive determination of cardiac output
US4727755A (en) * 1986-12-08 1988-03-01 Fischer & Porter Co. Electromagnetic flowmeter with alternating permanent magnet field
US4993420A (en) * 1990-03-30 1991-02-19 Rutgers University Method and apparatus for noninvasive monitoring dynamic cardiac performance
DE69233065D1 (de) * 1991-06-11 2003-06-26 Newt Holdings Ltd Sonde
US5935077A (en) * 1997-08-14 1999-08-10 Ogle; John Seldon Noninvasive blood flow sensor using magnetic field parallel to skin
US10155082B2 (en) * 2002-04-10 2018-12-18 Baxter International Inc. Enhanced signal detection for access disconnection systems
US7022098B2 (en) * 2002-04-10 2006-04-04 Baxter International Inc. Access disconnection systems and methods
US7052480B2 (en) 2002-04-10 2006-05-30 Baxter International Inc. Access disconnection systems and methods
US20040254513A1 (en) 2002-04-10 2004-12-16 Sherwin Shang Conductive polymer materials and applications thereof including monitoring and providing effective therapy
US8114043B2 (en) 2008-07-25 2012-02-14 Baxter International Inc. Electromagnetic induction access disconnect sensor
DE102015103580A1 (de) * 2015-03-11 2016-09-15 Endress + Hauser Flowtec Ag Magnetisch-induktives Durchflussmessgerät mit verringerter Stromaufnahme
CN114034880B (zh) * 2021-11-22 2024-10-18 北京信息科技大学 动热源式双轴微机械角速度传感器及其加工方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2867119A (en) * 1954-09-14 1959-01-06 Foxboro Co Electromagnetic flowmeter
FR1151440A (fr) * 1955-06-17 1958-01-30 Philips Nv Dispositif pour la mesure de débits
US2924213A (en) * 1958-03-17 1960-02-09 Fleck Henry Electrical probe
US3060923A (en) * 1959-01-07 1962-10-30 Teca Corp Coaxial electrode structure and a method of fabricating same
DE1272011B (de) * 1960-12-28 1968-07-04 Foxboro Co Vorrichtung zur UEbertragung von fuer industrielle Verfahrensablaeufe charakteristischen Signalen, insbesondere fuer magnetische Stroemungsmesser
US3184966A (en) * 1961-07-13 1965-05-25 Avionics Res Products Corp Electromagnetic flowmeter
FR1457269A (fr) * 1962-11-30 1966-01-24 Procédé de propulsion de corps mobiles ainsi que l'appareil et les corps pour la mise en application dudit procédé ou procédé similaire
US3347224A (en) * 1964-05-26 1967-10-17 Brandon L Adams Apparatus and method for measuring cardiac output
US3377855A (en) * 1966-06-29 1968-04-16 Gen Signal Corp Noise nulling network for magnetic flowmeter
DE1673037B2 (de) * 1967-08-11 1974-08-15 Siemens Ag, 1000 Berlin Und 8000 Muenchen Verfahren und Vorrichtung zur Bestimmung der Verteilung strömender Medien
FR2063594A5 (da) * 1969-10-23 1971-07-09 Ieram Sarl
FR2087729A5 (da) * 1970-05-29 1971-12-31 Ieram Sarl
US3659591A (en) * 1970-08-24 1972-05-02 Doll Research Electromagnetic flowmeter

Also Published As

Publication number Publication date
BE771669A (fr) 1971-12-31
CA980869A (en) 1975-12-30
CH530786A (de) 1972-11-30
IL37407A (en) 1975-02-10
IL37407A0 (en) 1971-10-20
DE2142211A1 (de) 1972-03-23
SE373278B (sv) 1975-02-03
US3759247A (en) 1973-09-18
AT321452B (de) 1975-04-10
DK138578C (da) 1979-03-12
NL171016C (nl) 1983-02-01
NL7111063A (da) 1972-02-28
GB1365129A (en) 1974-08-29
DK138578B (da) 1978-10-02
JPS5516659B1 (da) 1980-05-06
NL171016B (nl) 1982-09-01
SU528853A3 (ru) 1976-09-15
DE2142211C3 (de) 1980-05-22
NO133573C (da) 1976-05-26
DE2142211B2 (de) 1979-07-19
FR2105939A5 (da) 1972-04-28

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