Drug – bio-affecting and body treating compositions – Radionuclide or intended radionuclide containing; adjuvant... – In aerosol – fine spray – effervescent – pressurized fluid,...
Reexamination Certificate
2007-07-31
2007-07-31
Carlson, Karen Cochrane (Department: 1656)
Drug, bio-affecting and body treating compositions
Radionuclide or intended radionuclide containing; adjuvant...
In aerosol, fine spray, effervescent, pressurized fluid,...
Reexamination Certificate
active
10493256
ABSTRACT:
A process for the co-precipitation of a substance with a stabilizer therefor, by a gas anti solvent process comprising introducing into a particle formation vessel a supercritical fluid pure or mixed with a modifier; and a solution comprising said substance and said stabilizer dissolved in a solvent; so as said solvent is extracted from the solution by said supercritical fluid and co-precipitation of the substance and stabilizer occurs. The process may be carried out using an apparatus, for example, shown in FIG.1, comprising a particle formation vessel (22) and a nozzle (27) having a central orifice (39) serving to introduce a solution of the substance and a plurality of outer orifices (41) serving to carry a flow of supercritical fluid into the particle formation vessel (22), such that the solvent is extracted from the solution by the supercritical fluid and precipitation of micron sized particles of the substance/stabilizer occurs.
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Cesta Maria Candida
Di Palma Cesare
Gentile Marco
Carlson Karen Cochrane
Dompé pha.r.ma S.p.A.
Needle & Rosenberg
Noakes Suzanne M.
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