Ultrasonic emulsion fluids
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United States of America Patent
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Sep 24, 1985
Grant Date -
N/A
app pub date -
Jun 27, 1983
filing date -
Jun 27, 1983
priority date (Note) -
Expired
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Abstract
An ultrasonic emulsion fluid is provided for use in ultrasonic probes of medical ultrasonic diagnostic systems, in which the fluid couples ultrasonic energy between a transducer and human tissue. The emulsion outer phase is a water and velocity enhancer mixture. Suitable enhancers include alcohols such as ethylene glycol, propylene glycol, or glycerol. The suspended phase of the emulsion is an oil phase such as a silicone fluid. The silicone fluid droplets in the emulsion exhibit an average size which provides the emulsion with desired attenuation characteristics over a given band of ultrasonic frequencies.
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