CA1013817A - Non-invasive electromagnetic bloodflow measuring system with rejection of noises - Google Patents

Non-invasive electromagnetic bloodflow measuring system with rejection of noises

Info

Publication number
CA1013817A
CA1013817A CA178,425A CA178425A CA1013817A CA 1013817 A CA1013817 A CA 1013817A CA 178425 A CA178425 A CA 178425A CA 1013817 A CA1013817 A CA 1013817A
Authority
CA
Canada
Prior art keywords
bloodflow
noises
rejection
measuring system
invasive electromagnetic
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
CA178,425A
Other languages
English (en)
Other versions
CA178425S (en
Inventor
Henri G. Doll
Hans J. Broner
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.)
DOLL RESEARCH
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
Priority to CA266,342A priority Critical patent/CA1018605A/en
Application granted granted Critical
Publication of CA1013817A publication Critical patent/CA1013817A/en
Expired legal-status Critical Current

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 for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
    • A61B5/026—Measuring blood flow
    • A61B5/0265—Measuring blood flow using electromagnetic means, e.g. electromagnetic flowmeter
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/316—Modalities, i.e. specific diagnostic methods
    • A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
    • A61B5/346—Analysis of electrocardiograms
    • A61B5/349—Detecting specific parameters of the electrocardiograph cycle
    • A61B5/352—Detecting R peaks, e.g. for synchronising diagnostic apparatus; Estimating R-R interval
    • 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
    • G01F1/56—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 using electric or magnetic effects
    • G01F1/58—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 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)
CA178,425A 1972-10-11 1973-08-09 Non-invasive electromagnetic bloodflow measuring system with rejection of noises Expired CA1013817A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA266,342A CA1018605A (en) 1972-10-11 1976-11-23 Non-invasive electromagnetic bloodflow measuring system with rejection of noises

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00296677A US3809070A (en) 1971-07-01 1972-10-11 Non-invasive electromagnetic bloodflow measuring system with rejection of noises

Publications (1)

Publication Number Publication Date
CA1013817A true CA1013817A (en) 1977-07-12

Family

ID=23143051

Family Applications (1)

Application Number Title Priority Date Filing Date
CA178,425A Expired CA1013817A (en) 1972-10-11 1973-08-09 Non-invasive electromagnetic bloodflow measuring system with rejection of noises

Country Status (15)

Country Link
US (1) US3809070A (enExample)
JP (2) JPS4972985A (enExample)
AT (1) AT347566B (enExample)
BE (1) BE805898R (enExample)
CA (1) CA1013817A (enExample)
CH (1) CH559035A5 (enExample)
DE (1) DE2344211C2 (enExample)
FR (1) FR2208635B2 (enExample)
GB (1) GB1446063A (enExample)
IL (1) IL42922A (enExample)
IT (1) IT1046705B (enExample)
NL (1) NL7311698A (enExample)
NO (1) NO138188C (enExample)
SE (1) SE399513B (enExample)
SU (1) SU655283A3 (enExample)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3994285A (en) * 1974-12-17 1976-11-30 Doll Research, Inc. Revolving symmetrical magnet assembly and improved method of blood flow detection
US4159645A (en) * 1977-11-11 1979-07-03 Monitek, Inc. Electromagnetic fluid flow meter with tolerance to spurious signals
US4190886A (en) * 1978-04-10 1980-02-26 Hewlett-Packard Company Derivation of steady values of blood pressures
JPS5927566B2 (ja) * 1980-07-02 1984-07-06 日本光電工業株式会社 電磁血流計
GB2089999B (en) * 1980-12-22 1985-02-20 Medtronic Inc Non-invasive haemodynamic performance assessment
US4516582A (en) * 1983-05-02 1985-05-14 General Electric Company NMR blood flow imaging
JPS6023005U (ja) * 1983-07-25 1985-02-16 日本光電工業株式会社 電磁血流計
WO2000045697A1 (en) * 1997-02-27 2000-08-10 Uri Rapoport Method and apparatus for detecting a magnetically responsive substance
US5978694A (en) * 1997-02-27 1999-11-02 Uri Rapoport Method and apparatus for detecting a magnetically responsive substance
JP3582495B2 (ja) * 2001-02-21 2004-10-27 株式会社日立製作所 生体磁場計測装置
EP1417926B1 (de) * 2002-11-11 2007-12-19 Schiller AG Verfahren und Vorrichtung zum Erfassen und Bearbeiten eines EKG-Signals
EP2630912B1 (en) * 2005-11-09 2015-07-29 Japan Science and Technology Agency Method of and apparatus for measuring properties of an object with acoustically induced electromagnetic waves
JP5892623B2 (ja) * 2011-07-20 2016-03-23 国立大学法人東京農工大学 被測定対象の特性測定装置及び被測定対象の特性測定方法
JP6541214B2 (ja) * 2015-02-09 2019-07-10 フクダ電子株式会社 生体情報測定装置
CN113288102B (zh) * 2021-06-11 2022-07-15 中国人民解放军陆军军医大学 一种无创监测脑血流的系统

Family Cites Families (7)

* 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
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
US3377855A (en) * 1966-06-29 1968-04-16 Gen Signal Corp Noise nulling network for magnetic flowmeter
US3659591A (en) * 1970-08-24 1972-05-02 Doll Research Electromagnetic flowmeter
US3759247A (en) * 1970-08-24 1973-09-18 Doll Research Electromagnetic flowmeter
US3717031A (en) * 1971-02-22 1973-02-20 Univ California Three electrode flow meter

Also Published As

Publication number Publication date
BE805898R (fr) 1974-02-01
ATA869673A (de) 1978-05-15
SU655283A3 (ru) 1979-03-30
JPS57145642A (en) 1982-09-08
US3809070A (en) 1974-05-07
FR2208635A2 (enExample) 1974-06-28
NO138188B (no) 1978-04-17
JPS5829090B2 (ja) 1983-06-20
AT347566B (de) 1979-01-10
IL42922A (en) 1976-05-31
JPS4972985A (enExample) 1974-07-15
IT1046705B (it) 1980-07-31
SE399513B (sv) 1978-02-20
DE2344211C2 (de) 1983-06-01
GB1446063A (en) 1976-08-11
DE2344211A1 (de) 1974-04-25
FR2208635B2 (enExample) 1976-06-18
NL7311698A (enExample) 1974-04-16
NO138188C (no) 1978-07-26
CH559035A5 (enExample) 1975-02-28

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