FR2371182A1 - Detecteur a ultrasons de corpulscules vehicules dans la circulation sanguine - Google Patents

Detecteur a ultrasons de corpulscules vehicules dans la circulation sanguine

Info

Publication number
FR2371182A1
FR2371182A1 FR7634550A FR7634550A FR2371182A1 FR 2371182 A1 FR2371182 A1 FR 2371182A1 FR 7634550 A FR7634550 A FR 7634550A FR 7634550 A FR7634550 A FR 7634550A FR 2371182 A1 FR2371182 A1 FR 2371182A1
Authority
FR
France
Prior art keywords
receiver
cascade
frequency band
pass filter
low frequency
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.)
Granted
Application number
FR7634550A
Other languages
English (en)
Other versions
FR2371182B1 (fr
Inventor
Clement Guillaud
Herve Moulinier
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.)
Gouvernement de la Republique Francaise
Original Assignee
Gouvernement de la Republique Francaise
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 Gouvernement de la Republique Francaise filed Critical Gouvernement de la Republique Francaise
Priority to FR7634550A priority Critical patent/FR2371182A1/fr
Publication of FR2371182A1 publication Critical patent/FR2371182A1/fr
Application granted granted Critical
Publication of FR2371182B1 publication Critical patent/FR2371182B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/02—Analysing fluids
    • G01N29/032—Analysing fluids by measuring attenuation of acoustic waves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/48—Diagnostic techniques
    • A61B8/488—Diagnostic techniques involving Doppler signals

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Acoustics & Sound (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Abstract

L'invention concerne un détecteur à ultrasons de corpuscules véhiculés dans la circulation sanguine. Le détecteur selon l'invention, à détection de fréquence diffractée et modifiée par effet Doppler, comprenant un émetteur E et un récepteur d'ultrasons reliés à une sonde S, est caractérisé en ce qu'il est muni d'un étage de filtrage passe-bande F disposé à la sortie de l'amplificateur basse-fréquence M du récepteur et dont la bande passante est spécifique de l'origine du bruit détecté. Application à la réalisation de détecteurs de bulles gazeuses dans le sang.
FR7634550A 1976-11-17 1976-11-17 Detecteur a ultrasons de corpulscules vehicules dans la circulation sanguine Granted FR2371182A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7634550A FR2371182A1 (fr) 1976-11-17 1976-11-17 Detecteur a ultrasons de corpulscules vehicules dans la circulation sanguine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7634550A FR2371182A1 (fr) 1976-11-17 1976-11-17 Detecteur a ultrasons de corpulscules vehicules dans la circulation sanguine

Publications (2)

Publication Number Publication Date
FR2371182A1 true FR2371182A1 (fr) 1978-06-16
FR2371182B1 FR2371182B1 (fr) 1979-04-06

Family

ID=9179996

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7634550A Granted FR2371182A1 (fr) 1976-11-17 1976-11-17 Detecteur a ultrasons de corpulscules vehicules dans la circulation sanguine

Country Status (1)

Country Link
FR (1) FR2371182A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0050040A3 (fr) * 1980-10-14 1982-05-12 Purdue Research Foundation Méthode et appareil pour la détection d'impuretés dans un liquide comme le sang
EP0483522A1 (fr) * 1990-09-28 1992-05-06 Fujitsu Limited Dispositif pour obtenir la puissance de la diffusion arrière du sang en éliminant les composants parasites
CN114306825A (zh) * 2021-12-28 2022-04-12 安徽皖仪科技股份有限公司 一种血液气泡监测模块及方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1268640A (en) * 1968-05-31 1972-03-29 Nat Res Dev Acoustic detection apparatus
FR2101274A5 (fr) * 1970-07-17 1972-03-31 France Etat

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1268640A (en) * 1968-05-31 1972-03-29 Nat Res Dev Acoustic detection apparatus
FR2101274A5 (fr) * 1970-07-17 1972-03-31 France Etat

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0050040A3 (fr) * 1980-10-14 1982-05-12 Purdue Research Foundation Méthode et appareil pour la détection d'impuretés dans un liquide comme le sang
EP0483522A1 (fr) * 1990-09-28 1992-05-06 Fujitsu Limited Dispositif pour obtenir la puissance de la diffusion arrière du sang en éliminant les composants parasites
US5243987A (en) * 1990-09-28 1993-09-14 Fujitsu Limited Apparatus for obtaining blood backscattering power excluding clutter components
CN114306825A (zh) * 2021-12-28 2022-04-12 安徽皖仪科技股份有限公司 一种血液气泡监测模块及方法
CN114306825B (zh) * 2021-12-28 2024-02-09 安徽皖仪科技股份有限公司 一种血液气泡监测模块

Also Published As

Publication number Publication date
FR2371182B1 (fr) 1979-04-06

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