Drug – bio-affecting and body treating compositions – In vivo diagnosis or in vivo testing – Ultrasound contrast agent
Reexamination Certificate
2006-11-28
2006-11-28
Jones, D. L. (Department: 1618)
Drug, bio-affecting and body treating compositions
In vivo diagnosis or in vivo testing
Ultrasound contrast agent
C424S009500, C424S009510, C600S441000, C600S458000
Reexamination Certificate
active
07141235
ABSTRACT:
A gas emulsion forming composition comprising a dry, hollow, particulate, approximately microspherical material permeated with a gas or gas mixture, which upon dissolution in aqueous liquid forms a gas emulsion comprising a plurality of bubbles surrounded by a layer of at least a first and a second surfactant, wherein the first surfactant consists essentially of a phospholipid or mixture of phospholipids having at least one acyl chain which comprises at least 10 carbon atoms, and comprising at least about 5% w/w of total surfactant, and wherein the second surfactant may or may not be a phospholipid and is more water soluble than the first surfactant; kits for preparing such microbubbles; and methods for using such microbubbles as contrast agents.
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Kabalnov Alexey
Klein David H.
Schutt Ernest George
Tarara Thomas E.
Trevino Leo A.
Fox Rothschild LLP
Imcor Pharmaceutical Co.
Jones D. L.
Norton Gerard P.
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