Ultrasonic Doppler diagnosis apparatus

Details Ultrasonic Doppler diagnosis apparatus Ultrasonic Doppler diagnosis apparatus

1990-04-03

1991-08-13

Jaworski, Francis

Surgery

Truss

Pad

7386125, A61B 806

Patent

active

050387880

ABSTRACT:
An ultrasonic Doppler diagnosis apparatus sets first and second rasters on a single blood stream. Those rasters originate from a single ultrasonic beam origin and extend in two different directions. An electronic sector scanner sets sample volumes of substantially equal depths as measured from the surface of a human body, on those rasters. A Doppler signal detector detects two types of Doppler shift signals corresponding to the sample volumes. An angle calculating circuit calculates an angle .theta. by using the coordinates data of the sample volumes, and obtains the information on the velocity of blood stream.

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