Method of making ultrasonic contrast agent

Drug – bio-affecting and body treating compositions – In vivo diagnosis or in vivo testing – Ultrasound contrast agent

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424 951, A61B 5055

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active

061398187

ABSTRACT:
Methods of making Ultrasonic contrast agents useful for echographic imaging body organs comprising a suspension of gas or air filled microballoons having a mean size in the range of 0.5 to 1000 microns bounded by a 50 to 500 nm thick biodegradable, interfacially deposited, synthetic polymer membrane which is both deformable and resilient are as described.

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