FR2214451B1 - - Google Patents

Info

Publication number
FR2214451B1
FR2214451B1 FR7401864A FR7401864A FR2214451B1 FR 2214451 B1 FR2214451 B1 FR 2214451B1 FR 7401864 A FR7401864 A FR 7401864A FR 7401864 A FR7401864 A FR 7401864A FR 2214451 B1 FR2214451 B1 FR 2214451B1
Authority
FR
France
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
FR7401864A
Other versions
FR2214451A1 (fr
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.)
Hitachi Healthcare Manufacturing Ltd
Original Assignee
Hitachi Medical Corp
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 Hitachi Medical Corp filed Critical Hitachi Medical Corp
Publication of FR2214451A1 publication Critical patent/FR2214451A1/fr
Application granted granted Critical
Publication of FR2214451B1 publication Critical patent/FR2214451B1/fr
Expired 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
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/24—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave
    • G01P5/241—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave by using reflection of acoustical waves, i.e. Doppler-effect
    • G01P5/242—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave by using reflection of acoustical waves, i.e. Doppler-effect involving continuous, e.g. modulated or unmodulated, waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/50—Systems of measurement, based on relative movement of the target
    • G01S15/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
    • G01S15/586—Velocity or trajectory determination systems; Sense-of-movement determination systems using transmission of continuous unmodulated waves, amplitude-, frequency-, or phase-modulated waves and based upon the Doppler effect resulting from movement of targets

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biophysics (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Multimedia (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
  • Measuring Volume Flow (AREA)
FR7401864A 1973-01-22 1974-01-21 Expired FR2214451B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1973010671U JPS54208Y2 (fr) 1973-01-22 1973-01-22

Publications (2)

Publication Number Publication Date
FR2214451A1 FR2214451A1 (fr) 1974-08-19
FR2214451B1 true FR2214451B1 (fr) 1977-03-04

Family

ID=11756699

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7401864A Expired FR2214451B1 (fr) 1973-01-22 1974-01-21

Country Status (5)

Country Link
US (1) US3896788A (fr)
JP (1) JPS54208Y2 (fr)
DE (1) DE2402407C3 (fr)
FR (1) FR2214451B1 (fr)
GB (1) GB1458061A (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50129063A (fr) * 1974-03-29 1975-10-11
USD243417S (en) * 1975-02-18 1977-02-15 Tektronix, Inc. Physiological sensor
US4032259A (en) * 1976-01-08 1977-06-28 E. I. Du Pont De Nemours And Company Method and apparatus for measuring fluid flow in small bore conduits
US4141347A (en) * 1976-09-21 1979-02-27 Sri International Real-time ultrasonic B-scan imaging and Doppler profile display system and method
US4152928A (en) * 1977-05-02 1979-05-08 University Patents, Inc. System for detecting fat particles in blood
US4205687A (en) * 1977-07-29 1980-06-03 Diagnostic Electronics Corporation Color coded blood flow velocity display equipment
JPS60210245A (ja) * 1984-04-02 1985-10-22 アロカ株式会社 超音波ドプラ診断装置
JPS5836528A (ja) * 1981-08-28 1983-03-03 株式会社東芝 超音波パルスドツプラ血流測定装置
NO150015C (no) * 1981-11-13 1984-08-08 Vingmed As Fremgangsmaate ved blodstroemhastighetsmaaling med ultralyd, kombinert med ekko-amplitudeavbildning, for undersoekelse av levende biologiske strukturer
US4441368A (en) * 1982-04-19 1984-04-10 General Electric Company Method and means for determining ultrasonic wave attenuation in tissue
US4476874A (en) * 1982-06-01 1984-10-16 Sri International Ultrasonic imaging with volume flow measuring method and apparatus
US4556067A (en) * 1984-01-10 1985-12-03 D. E. Hokanson, Inc. Bandwidth indicator for Doppler blood flowmeters
AU575396B2 (en) * 1984-05-14 1988-07-28 Deere & Company Ground speed sensor
US4713665A (en) * 1984-05-14 1987-12-15 Deere & Company Ground speed sensor
DE4238641C2 (de) * 1992-11-16 1994-12-08 Kraus Manfred Vorrichtung und Arbeitsverfahren zum Bestimmen und Auswerten des physiologischen Zustandes von Gefäßsystemen

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2826912A (en) * 1948-12-27 1958-03-18 Kritz Jack Acoustic velocity measuring system
US3220248A (en) * 1962-08-20 1965-11-30 American Mach & Foundry Ultrasonic inspection device
US3732532A (en) * 1967-08-03 1973-05-08 Magnaflux Corp Ultrasonic doppler instrument
FR1603446A (fr) * 1968-08-07 1971-04-19
DE1791191C3 (de) * 1968-09-28 1974-08-22 Siemens Ag, 1000 Berlin Und 8000 Muenchen Gerät zur Ermittlung der Blutflußgeschwindigkeit
GB1308451A (en) * 1969-03-05 1973-02-21 Nat Res Dev Blood flow measurement
GB1291395A (en) * 1970-02-17 1972-10-04 Krupp Gmbh Echo signal apparatus for producing a representation of the echo signals on the screen of a colour cathode ray tube
US3624744A (en) * 1970-02-26 1971-11-30 Automation Ind Inc Ultrasonic tester

Also Published As

Publication number Publication date
DE2402407A1 (de) 1974-07-25
DE2402407C3 (de) 1979-11-15
DE2402407B2 (de) 1979-03-29
FR2214451A1 (fr) 1974-08-19
US3896788A (en) 1975-07-29
JPS54208Y2 (fr) 1979-01-08
GB1458061A (en) 1976-12-08
JPS49114784U (fr) 1974-10-01

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Legal Events

Date Code Title Description
ST Notification of lapse