Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Particulate form
Patent
1995-10-04
1997-07-15
Webman, Edward J.
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Particulate form
424490, 424426, 424421, 424602, 424696, 428402, 42840224, 428403, 264 5, 264 7, 514952, 71 6413, 71DIG1, A61K 916, A61K 4704, A01N 2512
Patent
active
056480970
ABSTRACT:
A novel method of producing biodegradable microparticles is disclosed. Inorganic calcium salts are mixed with water to form a slurry. The slurry is then added to an oil bath which is then mixed to form an emulsion. The mixing continues for a period of time sufficient to form hardened microparticles. The hardened microparticles are then retrieved and characterized. Biologically active agents may be added to the slurry prior to emulsification, or they may be added to the hardened microparticles after production. The microparticles may be injected into a human being whereby they act as controlled release drug delivery vehicles.
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Biotek, Inc.
Webman Edward J.
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