ES483605A1 - Metodo y su correspondiente instrumento utilizando ultraso- nidos para medir la velocidad de circulacion de la sangre - y liquidos similares. - Google Patents

Metodo y su correspondiente instrumento utilizando ultraso- nidos para medir la velocidad de circulacion de la sangre - y liquidos similares.

Info

Publication number
ES483605A1
ES483605A1 ES483605A ES483605A ES483605A1 ES 483605 A1 ES483605 A1 ES 483605A1 ES 483605 A ES483605 A ES 483605A ES 483605 A ES483605 A ES 483605A ES 483605 A1 ES483605 A1 ES 483605A1
Authority
ES
Spain
Prior art keywords
ultrasound system
directional detection
velocities
blood
blood velocities
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
ES483605A
Other languages
English (en)
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.)
General Electric Co
Original Assignee
General Electric Co
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25468184&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES483605(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by General Electric Co filed Critical General Electric Co
Publication of ES483605A1 publication Critical patent/ES483605A1/es
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
    • G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
    • G01S15/8979—Combined Doppler and pulse-echo imaging systems
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/13—Tomography
    • 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
    • G01P5/244—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 pulsed waves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/12—Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
    • A61B8/4483—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device characterised by features of the ultrasound transducer
    • A61B8/4488—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device characterised by features of the ultrasound transducer the transducer being a phased array
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02836—Flow rate, liquid level

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Animal Behavior & Ethology (AREA)
  • Medical Informatics (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Hematology (AREA)
  • Multimedia (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Measuring Volume Flow (AREA)

Abstract

Método y su correspondiente instrumento utilizando ultrasonidos con haz orientado para medir la velocidad de circulación de la sangre y líquidos similares, caracterizado el instrumento porque incluye un conjunto de transductores provisto de una pluralidad de elementos transductores electroacústicos para transmitir impulsos de ultrasonido con una frecuencia de emisión predeterminada y para generar señales de eco recibidas, un dispositivo transmisor para excitar secuencialmente unos elementos transductores elegidos con una programación en el tiempo de elemento a elemento con el fin de generar un impulso ultrasonoro de banda estrecha que se propaga a lo largo de una línea de exploración radial elegida y que se aplica a un volumen de muestra del objeto sometido al exámen a través del cual se está midiendo la velocidad de circulación hacia y a partir del conjunto, un dispositivo receptor de canales múltiples para demodular coherentemente dichas señales de eco con referencias de frecuencia de emisión en cuadratura de fase y para retardar en el tiempo y sumar las señales en fase y una señal focalizada en cuadratura, una puerta de alcance para extraer un par de muestras analógicas en paralelo a partir de dichas señales focalizadas en fase y en cuadratura después de cada transmisión de impulso en un momento que corresponde a la recepción de los ecos retrodispersos a partir del volumen de muestra, un procesador digital complejo de transformada de Fourier para derivar repetidamente a partir de grupos de dichos pares de muestras analógicas la magnitud y el signo de la variación de frecuencia de los ecos respecto a la frecuencia de emisión y por tanto la velocidad y la dirección de circulación, y un dispositivo de visualización para representar visualmente la velocidad bidireccional en función del tiempo.
ES483605A 1978-08-23 1979-08-23 Metodo y su correspondiente instrumento utilizando ultraso- nidos para medir la velocidad de circulacion de la sangre - y liquidos similares. Expired ES483605A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/936,111 US4217909A (en) 1978-08-23 1978-08-23 Directional detection of blood velocities in an ultrasound system

Publications (1)

Publication Number Publication Date
ES483605A1 true ES483605A1 (es) 1980-09-01

Family

ID=25468184

Family Applications (2)

Application Number Title Priority Date Filing Date
ES483605A Expired ES483605A1 (es) 1978-08-23 1979-08-23 Metodo y su correspondiente instrumento utilizando ultraso- nidos para medir la velocidad de circulacion de la sangre - y liquidos similares.
ES491112A Expired ES8105142A1 (es) 1978-08-23 1980-05-02 Sistema ultrasonico duplex de formacion de imagen

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES491112A Expired ES8105142A1 (es) 1978-08-23 1980-05-02 Sistema ultrasonico duplex de formacion de imagen

Country Status (6)

Country Link
US (1) US4217909A (es)
EP (1) EP0014793B2 (es)
JP (1) JPS5547465A (es)
AU (1) AU525127B2 (es)
DE (1) DE2964540D1 (es)
ES (2) ES483605A1 (es)

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JPS5897347A (ja) * 1981-12-03 1983-06-09 株式会社東芝 超音波診断装置
JPS58188433A (ja) * 1982-04-28 1983-11-02 アロカ株式会社 超音波診断装置
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US4759374A (en) * 1985-05-06 1988-07-26 American Telephone And Telegraph Company And At&T Bell Laboratories Non-invasive blood flow measurements utilizing cardiac cycle synchronization
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US4674517A (en) * 1985-08-09 1987-06-23 Lawrence Medical Systems, Inc. Noninvasive ultrasonic probes
US4803990A (en) * 1985-12-03 1989-02-14 U.S. Philips Corporation Examining moving objects by ultrasound echograpy
JPH0648954Y2 (ja) * 1988-04-01 1994-12-12 株式会社ピーエフユー 電磁フィルタ複合部品
JPH0793511B2 (ja) * 1989-03-23 1995-10-09 松下電器産業株式会社 高密度回路モジュール
JPH02291847A (ja) * 1989-05-02 1990-12-03 Toshiba Corp 超音波血流計測装置
JPH0614932B2 (ja) * 1989-05-29 1994-03-02 株式会社東芝 超音波診断装置
AU642496B2 (en) * 1990-04-18 1993-10-21 Commonwealth Scientific And Industrial Research Organisation Method and apparatus for determining the velocity of a flowing liquid
US5305753A (en) * 1990-04-18 1994-04-26 Commonwealth Scientific And Industrial Research Organisation Method and apparatus for determining the velocity of a flowing liquid
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US5291892A (en) * 1991-11-04 1994-03-08 General Electric Company Ultrasonic flow imaging
AU3065292A (en) * 1991-11-07 1993-06-07 Ferrari Importing Company Sports racquet with hybrid stringing arrangement
US5409010A (en) * 1992-05-19 1995-04-25 Board Of Regents Of The University Of Washington Vector doppler medical devices for blood velocity studies
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JP3514553B2 (ja) * 1995-06-30 2004-03-31 フクダ電子株式会社 超音波診断装置
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JP5154554B2 (ja) 2006-08-01 2013-02-27 ボストン サイエンティフィック サイムド，インコーポレイテッド 非線形イメージングのためのパルスインバージョンシーケンス
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CN107233109B (zh) * 2016-12-08 2023-08-08 成都优途科技有限公司 一种多普勒超声血流检测系统及其检测方法
CN107144506B (zh) * 2017-06-21 2023-08-22 华南理工大学 一种基于环状交织阵列的悬浮物动态监测方法与装置
CN111227867B (zh) * 2020-03-10 2021-01-12 云南大学 一种超声多普勒血流成像方法及系统

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Also Published As

Publication number Publication date
EP0014793B1 (en) 1983-01-19
EP0014793A1 (en) 1980-09-03
US4217909A (en) 1980-08-19
EP0014793B2 (en) 1986-10-22
AU4904079A (en) 1980-02-28
ES491112A0 (es) 1981-05-16
AU525127B2 (en) 1982-10-21
JPS626810B2 (es) 1987-02-13
JPS5547465A (en) 1980-04-03
ES8105142A1 (es) 1981-05-16
DE2964540D1 (en) 1983-02-24

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19970203