ES489802A1 - Perfeccionamientos en dispositivos para la medicion no inva-siva de la velocidad del flujo sanguineo - Google Patents

Perfeccionamientos en dispositivos para la medicion no inva-siva de la velocidad del flujo sanguineo

Info

Publication number
ES489802A1
ES489802A1 ES489802A ES489802A ES489802A1 ES 489802 A1 ES489802 A1 ES 489802A1 ES 489802 A ES489802 A ES 489802A ES 489802 A ES489802 A ES 489802A ES 489802 A1 ES489802 A1 ES 489802A1
Authority
ES
Spain
Prior art keywords
blood flow
pulses
invasive measurement
state
order
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
ES489802A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of ES489802A1 publication Critical patent/ES489802A1/es
Expired 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)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)

Abstract

Perfeccionamientos en dispositivos para la medición no invasiva de la velocidad del flujo sanguíneo, según el método del doble efecto ultrasónico y empleo de emisores/receptores ultrasónicos para el ultrasonido reflejado sobre la sangre fluyente y bajo empleo del desplazamiento de doble frecuencia entre la instalación registradora y valoradora de la frecuencia de emisión y de recepción, caracterizados porque, para medir la velocidad de flujo de sangre a la altura de los vasos pequeños y capilares-microcirculación y/o para registrar un agregado eritrocítico, se ha previsto un dispositivo que presenta: a) un único cristal emisor- receptor , cuya posición angular respecto a la superficie de la piel es ajustable voluntariamente aproximadamente entre15º y 30º ; b) instalaciones de conmutación para la emisión de paquetes de impulsos consecutivos, preferentemente de forma periódica, con una frecuencia ultrasónica de al menos 20 Mhz para la velocidad de flujo de la sangre de la microcirculación y de impulsos aciculares por ejemplo con una anchura de aproximadamente 20 ns para registrar un agregado eritrocítico; c) instalaciones de conmutación para recibir y amplificar las señales reflejadas, mediante las cuales se enmascaran todas la partes de doble frecuencia negativa -delta f igual a la frecuencia de emisión menos la frecuencia de recepción-durante la demodulación; d) una instalación de comparación que compara la doble frecuencia recibida (delta f) con una frecuencia preestablecida, que corresponde a la velocidad máxima de flujo en la microcirculación; e) una instalación de control-puerta, que actúa como ventana profunda y que abarca , a una profundidad de tejido predeterminable, un volumen de medición predeterminable independientemente de la frecuencia de repetición.
ES489802A 1979-03-22 1980-03-21 Perfeccionamientos en dispositivos para la medicion no inva-siva de la velocidad del flujo sanguineo Expired ES489802A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2911258A DE2911258C2 (de) 1979-03-22 1979-03-22 Vorrichtung zum noninvasiven Messen der Blutströmungsgeschwindigkeit nach der Ultraschall-Doppler-Effekt-Methode

Publications (1)

Publication Number Publication Date
ES489802A1 true ES489802A1 (es) 1980-09-16

Family

ID=6066121

Family Applications (1)

Application Number Title Priority Date Filing Date
ES489802A Expired ES489802A1 (es) 1979-03-22 1980-03-21 Perfeccionamientos en dispositivos para la medicion no inva-siva de la velocidad del flujo sanguineo

Country Status (5)

Country Link
US (1) US4327739A (es)
EP (1) EP0016399A1 (es)
JP (1) JPS561140A (es)
DE (1) DE2911258C2 (es)
ES (1) ES489802A1 (es)

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JPS6048734A (ja) * 1983-08-25 1985-03-16 株式会社東芝 超音波流体観測装置
EP0145173A1 (en) * 1983-10-17 1985-06-19 Electro-Biology, Inc Modification of blood-circulatory dynamics within a living body
DE3417418A1 (de) * 1984-05-11 1985-11-14 Beate Dr. 8500 Nürnberg Gmelin Vorrichtung zur untersuchung der durchblutung menschlicher koerperteile u.dgl. umfassend wenigstens eine ultraschall-sende- und empfangseinrichtung
NL8500314A (nl) * 1984-07-19 1986-02-17 Drs Erna Peltzer Inrichting voor het bepalen van het ademhalingsgedrag van een patient.
DE3434740A1 (de) * 1984-09-21 1986-04-03 Rudolf 6270 Idstein Mauser Diagnosegeraet
US4719923A (en) * 1985-05-06 1988-01-19 American Telephone And Telegraph Company, At&T Bell Laboratories Non-invasive blood flow measurements utilizing autoregressive analysis with averaged reflection coefficients
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
JP2653792B2 (ja) * 1986-07-18 1997-09-17 ハウメディカ・インコーポレーテッド 血液速度測定ワイヤガイド
DE3737593C2 (de) * 1986-11-06 1995-03-16 Toshiba Kawasaki Kk Ultraschall-Sondenvorrichtung
GB8803840D0 (en) * 1988-02-18 1988-03-16 Deltanine Research Ltd Improvements in/relating to medical apparatus & surgical procedures
US5267565A (en) * 1988-02-18 1993-12-07 Beard Jonathan D Method and apparatus for determining the patency of a blood vessel
WO1994028794A1 (en) * 1993-06-08 1994-12-22 Stu-Ert Medical Devices Limited Peripheral vascular disease testing
EP0909395B1 (en) * 1996-07-02 2002-02-27 B-K Medical A/S Apparatus for determining movements and velocities of moving objects
US6547731B1 (en) 1998-05-05 2003-04-15 Cornell Research Foundation, Inc. Method for assessing blood flow and apparatus thereof
US8308682B2 (en) 2003-07-18 2012-11-13 Broncus Medical Inc. Devices for maintaining patency of surgically created channels in tissue
US8409167B2 (en) 2004-07-19 2013-04-02 Broncus Medical Inc Devices for delivering substances through an extra-anatomic opening created in an airway
US7888709B2 (en) * 2004-09-15 2011-02-15 Sonetics Ultrasound, Inc. Capacitive micromachined ultrasonic transducer and manufacturing method
US8658453B2 (en) * 2004-09-15 2014-02-25 Sonetics Ultrasound, Inc. Capacitive micromachined ultrasonic transducer
KR100871074B1 (ko) * 2007-02-01 2008-11-28 삼성전자주식회사 비침습형 혈당 측정 장치 및 그 방법
KR101312259B1 (ko) * 2007-02-09 2013-09-25 삼성전자주식회사 박막 트랜지스터 및 그 제조방법
US20080312543A1 (en) * 2007-06-18 2008-12-18 Broncus Technologies, Inc. Measurement of pulmonary hypertension from within the airways
US8323202B2 (en) * 2007-11-16 2012-12-04 Pneumrx, Inc. Method and system for measuring pulmonary artery circulation information
US8709034B2 (en) 2011-05-13 2014-04-29 Broncus Medical Inc. Methods and devices for diagnosing, monitoring, or treating medical conditions through an opening through an airway wall
WO2012158553A2 (en) 2011-05-13 2012-11-22 Broncus Technologies, Inc. Methods and devices for excision of tissue
WO2013078235A1 (en) 2011-11-23 2013-05-30 Broncus Medical Inc Methods and devices for diagnosing, monitoring, or treating medical conditions through an opening through an airway wall
RU2580895C2 (ru) * 2012-02-13 2016-04-10 Марина Борисовна Гирина Способ оценки регионарного кровообращения, тканевой микроциркуляции и насыщения крови кислородом и устройство для оценки регионарного кровообращения, тканевой микроциркуляции и насыщения крови кислородом
DE102013224389A1 (de) 2013-11-28 2015-05-28 GAMPT mbH, Gesellschaft für angewandte medizinische Physik und Technik Verfahren zur Ermittlung und/oder Überwachung des Zustandes eines extrakorporalen Fluides oder Fluidstroms mittels Ultraschall
US11147531B2 (en) 2015-08-12 2021-10-19 Sonetics Ultrasound, Inc. Method and system for measuring blood pressure using ultrasound by emitting push pulse to a blood vessel
EP3644841A4 (en) * 2017-06-30 2021-03-31 Georgia State University Research Foundation, Inc. NON-INVASIVE METHODS OF DETECTING LIVER FIBROSIS
CN112120734B (zh) * 2020-10-20 2022-11-11 深圳开立生物医疗科技股份有限公司 血流方向的多普勒频谱生成方法、装置及相关设备
CN113786211B (zh) * 2021-09-17 2022-11-22 云南大学 一种超声红细胞聚集度检测调控系统

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3498290A (en) * 1966-04-22 1970-03-03 Robert F Shaw Pulsed doppler volumetric blood flowmeter
DE1907320A1 (de) * 1969-02-12 1970-09-03 Siemens Ag Einrichtung zur Erfassung der Geschwindigkeit stroemender Medien in Leitungen
US3605724A (en) * 1969-11-10 1971-09-20 Magnaflux Corp Heart motion imaging system
DE2151347C3 (de) * 1971-10-15 1979-02-15 Siemens Ag, 1000 Berlin Und 8000 Muenchen Ultraschall-Bildgerät
IL40315A0 (en) * 1971-10-27 1972-11-28 American Optical Corp Apparatus for sonic transcutaneous interrogation of a vessel in vivo
GB1417115A (en) * 1971-12-09 1975-12-10 Hawker Siddeley Dynamics Ltd Apparatus for and method of determining flow
US4109642A (en) * 1972-04-03 1978-08-29 Institute Of Applied Physiology & Medicine Apparatus for ultrasonic arteriography
US3778757A (en) * 1972-09-01 1973-12-11 Gen Electric Method and apparatus for visual imaging ultrasonic echo signals utilizing multiple transmitters for reduced specular reflection effects
US3778756A (en) * 1972-09-01 1973-12-11 Gen Electric Method and apparatus for visual imaging of ultrasonic echo signals utilizing a single transmitter
US4031743A (en) * 1973-05-03 1977-06-28 The Commonwealth Of Australia, C/O Dept. Of Health Ultrasonic echogram display
DE2461264C3 (de) * 1974-12-23 1978-06-01 Siemens Ag, 1000 Berlin Und 8000 Muenchen Vorrichtung für die Messung des Volumenstroms strömender Medien
CA1076244A (en) * 1975-05-01 1980-04-22 Commonwealth Of Australia (The) Method and apparatus for ultrasonic examination
US4106492A (en) * 1977-01-12 1978-08-15 The United States Of America As Represented By The Secretary Of The Department Of Health, Education And Welfare Real time two-dimensional mechanical ultrasonic sector scanner with electronic control of sector width
DE2758039C3 (de) * 1977-12-24 1981-10-22 Chmiel, Horst, Prof. Dr.-Ing., 7250 Leonberg Vorrichtung zur fortlaufenden und quantitativen Bestimmung der hämodynamischen Parameter wie Blutströmungsgeschwindigkeit, Blutdruck, Herzschlag-Volumen
US4182173A (en) * 1978-08-23 1980-01-08 General Electric Company Duplex ultrasonic imaging system with repetitive excitation of common transducer in doppler modality

Also Published As

Publication number Publication date
DE2911258C2 (de) 1982-09-23
EP0016399A1 (de) 1980-10-01
US4327739A (en) 1982-05-04
JPS561140A (en) 1981-01-08
DE2911258B1 (de) 1980-07-10

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20001009