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JPS5786009A - Measuring device for flow passage information using ultrasonic wave - Google Patents

Measuring device for flow passage information using ultrasonic wave

Info

Publication number
JPS5786009A
JPS5786009A JP16174780A JP16174780A JPS5786009A JP S5786009 A JPS5786009 A JP S5786009A JP 16174780 A JP16174780 A JP 16174780A JP 16174780 A JP16174780 A JP 16174780A JP S5786009 A JPS5786009 A JP S5786009A
Authority
JP
Japan
Prior art keywords
flow passage
outputs
calculating part
flow
probes
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.)
Pending
Application number
JP16174780A
Other languages
Japanese (ja)
Inventor
Hirohide Miwa
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP16174780A priority Critical patent/JPS5786009A/en
Publication of JPS5786009A publication Critical patent/JPS5786009A/en
Pending legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

PURPOSE:To perform accurate measurement by detecting and processing the reflected waves wherein plural ultrasonic beams of mutually different natures are intersected at the specific points of a flow passage. CONSTITUTION:Probes A, B emit ultrasonic beams of mutually different natures by means of the outputs of transmission/reception amplifiers 1, 2 in such a way that they intersect with each other at angles which are not zero at the specific points of a flow passage 4 in an object to be examined of which the pipe diameter changes with time. The reception signals of the reflected waves taken out from the probes A, B are inputted via the amplifiers 1, 2 to pipe wall detecting parts 5, 6, and flow speed detecting parts 7, 8, the outputs whereof are inputted to a pipe wall cross sectional area calculating part 9 and an absolute flow speed calculating part 10. A flow rate calculating part 11 calculates flow rates in accordance with the outputs of these calculating parts.
JP16174780A 1980-11-17 1980-11-17 Measuring device for flow passage information using ultrasonic wave Pending JPS5786009A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16174780A JPS5786009A (en) 1980-11-17 1980-11-17 Measuring device for flow passage information using ultrasonic wave

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16174780A JPS5786009A (en) 1980-11-17 1980-11-17 Measuring device for flow passage information using ultrasonic wave

Publications (1)

Publication Number Publication Date
JPS5786009A true JPS5786009A (en) 1982-05-28

Family

ID=15741111

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16174780A Pending JPS5786009A (en) 1980-11-17 1980-11-17 Measuring device for flow passage information using ultrasonic wave

Country Status (1)

Country Link
JP (1) JPS5786009A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS595964A (en) * 1982-07-02 1984-01-12 Fujitsu Ltd Apparatus for measuring two-dimensional doppler flow speed map
JPS59135713U (en) * 1983-02-28 1984-09-11 株式会社島津製作所 Ultrasound diagnostic equipment
JPS6013109U (en) * 1983-07-07 1985-01-29 アロカ株式会社 Ultrasound diagnostic equipment
JPS6021743A (en) * 1983-07-15 1985-02-04 富士通株式会社 Ultrasonic pulse doppler blood meter
JPS60176632A (en) * 1984-02-22 1985-09-10 富士通株式会社 Ultrasonic pulse doppler blood flow meter
JP2010284304A (en) * 2009-06-11 2010-12-24 Tohoku Univ Ischemia monitor for internal organ

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS595964A (en) * 1982-07-02 1984-01-12 Fujitsu Ltd Apparatus for measuring two-dimensional doppler flow speed map
JPS59135713U (en) * 1983-02-28 1984-09-11 株式会社島津製作所 Ultrasound diagnostic equipment
JPS6013109U (en) * 1983-07-07 1985-01-29 アロカ株式会社 Ultrasound diagnostic equipment
JPH0215448Y2 (en) * 1983-07-07 1990-04-25
JPS6021743A (en) * 1983-07-15 1985-02-04 富士通株式会社 Ultrasonic pulse doppler blood meter
JPS60176632A (en) * 1984-02-22 1985-09-10 富士通株式会社 Ultrasonic pulse doppler blood flow meter
JP2010284304A (en) * 2009-06-11 2010-12-24 Tohoku Univ Ischemia monitor for internal organ

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