MEDICAL IMPLANT HAVING IMPROVED DRUG ELUTING FEATURES

摘要

An implantable drainage device (10) for treatment of a stricture of a body- vessel is disclosed. The device comprises a drainage tube (16) including an inlet (14) and extending to an outlet (12) to define a drainage lumen (18) formed through the inlet and the outlet. The drainage tube includes a swell layer and a cast layer formed about the swell layer. The swell layer has a first agent dispersed thereabout for regulated drug elution through the cast layer.- The cast layer has a second agent disposed thereabout for drug elution therefrom.