Drug – bio-affecting and body treating compositions – In vivo diagnosis or in vivo testing – Ultrasound contrast agent
Patent
1998-01-20
2000-05-16
Dees, Jose' G.
Drug, bio-affecting and body treating compositions
In vivo diagnosis or in vivo testing
Ultrasound contrast agent
A61K 4904
Patent
active
06063362&
ABSTRACT:
The present invention relates to a process for making insoluble gas-filled, pressure-resistant microspheres containing a liquid or solid hydrophobic barrier within the microsphere shell, and products of this process. This barrier serves to decrease the rate of gas exchange between the microsphere and the aqueous environment surrounding the microsphere and thus enhances resistance to pressure due to gas exchange.
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Dees Jos,e G.
Hartley Michael G.
Molecular Biosystems, Inc.
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