Patent ID: 6319512
Filing Date: 2001-11-20
Classification: A61K,Y10S

Abstract:
An implant for the controlled release of at least one pharmaceutically active principle comprising:a core containing at least one active principle,and a sheath surrounding said core, wherein said sheath is composed of at least one polymeric film of controlled thickness, prepared before application, and applied around the core;wherein the polymeric film of the sheath is composed of a mixture, in proportions in the range 40:60 to 60:40, of a poly(lactide-co-glycolide) acid having a molecular weight which is in the range 20,000 daltons to 100,000 daltons, and a polylactide acid polymer, which is a polyester derived from an .alpha.-hydroxycarboxylic acid, having a molecular weight in the range 2,000 daltons to 6,000 daltons.