Patent ID: 6207191
Filing Date: 2001-03-27
Classification: A61J,A61K

Abstract:
A drug delivery system consisting essentially of: a container (12) defining an inner chamber (16) for containing drug (18) therein and having a passageway (26) opening to an external environment thereof, said container (12) being fluid permeable and a fluid impermeable plug (28) disposed in said passageway (26) for plugging said opening (24) closed, said plug (28) being slidably releasable from said opening (24) upon the application of fluid pressure from within said inner chamber (16) when disposed in a fluid environment and forcing said plug (28) constructed of a viscoelastic polymer to slide out of said passageway (26) to release the drug (18) from said inner chamber (16) and out of said passageway (26).