Ultrasonic method and apparatus for flow measurement

Details Ultrasonic method and apparatus for flow measurement Ultrasonic method and apparatus for flow measurement

1995-02-13

1996-01-02

Jaworski, Francis

Surgery

Truss

Pad

12866204, A61B 812, A61B 806

Patent

active

054799287

ABSTRACT:
An ultrasonic probe for flow rate measurement by the Doppler effect includes at least one wide-beam ultrasound transducer fixed on a support block and at least one narrow-beam ultrasound transducer fixed on a support block and whose beam position is known in relation to the wide beam, and a control and processing unit which processes and measures the characteristics of the signal from the narrow-beam transducer in order to determine the only appropriate direction for pointing the wide-beam transducer to enable an accurate measurement of flow rate to be performed.

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Wildi, Eric, Knutti, James W., Allen, Henry V. and Meindl, James D.; "Dynamics and Limitations of Blood/Muscle Interface Detection Using Doppler Power Returns", vol. BME-27 (1980) Oct., No. 10, New York, USA.
Robert M. Olson and Julian P. Cooke, "A Nondestructive Ultrasonic Technique to Measure Diameter and Blood Flow in Arteries," IEEE Transactions on Biomedical Engineering, Mar. 1974.
Michael K. Wells et al., "Ultrasonic Transesophageal Measurement of Hemodynamic Parameters in Humans," ISA Transactions, vol. 18, No. 1, Sep. 1979.
M. B. Histand et al., "Ultrasonic Pulsed Doppler Transoesophageal Measurement of Aortic Haemodynamics in Humans," Ultrasonics, Sep. 1979.

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