Ultrasonic manometry process in a fluid by means of microbubbles
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United States of America Patent
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Mar 23, 1993
Issued Date -
N/A
app pub date -
Dec 12, 1991
filing date -
Nov 5, 1986
priority date (Note) -
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Abstract
The invention relates to an ultrasonic manometry process in a fluid containing stabilized micro bubbles in an ensemble, wherein ultrasonic impulses are radiated into the fluid and brought to interact with the micro bubbles. The amplitude and/or frequency alterations in the ultrasonic scatter signals are recorded and evaluated compared with the ultrasonic impulses radiated in and/or previously recieved. Preparations for measuring blood pressure which can be used with the manometry process are described.
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