IL42922A - Blood flow measuring system - Google Patents

Blood flow measuring system

Info

Publication number
IL42922A
IL42922A IL42922A IL4292273A IL42922A IL 42922 A IL42922 A IL 42922A IL 42922 A IL42922 A IL 42922A IL 4292273 A IL4292273 A IL 4292273A IL 42922 A IL42922 A IL 42922A
Authority
IL
Israel
Prior art keywords
waveform
signal
pulsatile
cardiogram
signals
Prior art date
Application number
IL42922A
Other languages
English (en)
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 IL42922A publication Critical patent/IL42922A/en

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 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
    • A61B5/026—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)
IL42922A 1972-10-11 1973-08-07 Blood flow measuring system IL42922A (en)

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
IL42922A true IL42922A (en) 1976-05-31

Family

ID=23143051

Family Applications (1)

Application Number Title Priority Date Filing Date
IL42922A IL42922A (en) 1972-10-11 1973-08-07 Blood flow measuring system

Country Status (15)

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

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
US5978694A (en) * 1997-02-27 1999-11-02 Uri Rapoport Method and apparatus for detecting a magnetically responsive substance
AU2869900A (en) * 1997-02-27 2000-08-25 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
DE50211409D1 (de) * 2002-11-11 2008-01-31 Schiller Ag Verfahren und Vorrichtung zum Erfassen und Bearbeiten eines EKG-Signals
EP1952763B1 (en) 2005-11-09 2016-11-23 Japan Science and Technology Agency Method and apparatus for measuring characteristic of object with acoustically induced electromagnetic wave
US9551688B2 (en) * 2011-07-20 2017-01-24 Tokyo University Of Agriculture And Technology Property measuring device for object to be measured and property measuring method for object to be measured
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
FR2208635B2 (no) 1976-06-18
SU655283A3 (ru) 1979-03-30
DE2344211A1 (de) 1974-04-25
JPS4972985A (no) 1974-07-15
DE2344211C2 (de) 1983-06-01
NO138188B (no) 1978-04-17
CA1013817A (en) 1977-07-12
FR2208635A2 (no) 1974-06-28
AT347566B (de) 1979-01-10
CH559035A5 (no) 1975-02-28
GB1446063A (en) 1976-08-11
SE399513B (sv) 1978-02-20
NL7311698A (no) 1974-04-16
ATA869673A (de) 1978-05-15
JPS5829090B2 (ja) 1983-06-20
NO138188C (no) 1978-07-26
JPS57145642A (en) 1982-09-08
IT1046705B (it) 1980-07-31
US3809070A (en) 1974-05-07
BE805898R (fr) 1974-02-01

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