Apparatus for the preparation of particles of polymers esfericas

摘要

The present invention relates to a perfectly standardised apparatus of preparing beads and microspheres for pharmaceutical purpose. A polymer solution or suspension eventually containing a drug is dropwise added through one or more tubes having a known diameter or a spraying nozzle held by the adjustable apparatus support (16), falling in a funnel (22) that is filled up with the precipitating solution; a vertical shaft endless screw (26) impels the precipitating solution and promotes the descending movement of beads or microspheres along of a coil (24); these particles fall in the lower part (30) of the apparatus where they are collected and removed through the outlet cock (32). IMAGE