Echogenic coatings with overcoat
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United States of America Patent
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app pub date -
Apr 25, 2007
filing date -
Nov 6, 1996
priority date (Note) -
Abandoned
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Abstract
An ultrasonically visible solid device for inserting into a non-gas target medium comprises an echogenic surface having structures entrapping gas when the device is in the target medium, the entrapped gas causing the device to be ultrasonically visible, wherein the gas-entrapping structures are covered with a flexible overcoat that does not significantly reduce the compressibility of the gas trapped in the structures.
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