Implantable percutaneous endoprosthesis

摘要

The percutaneous endoprosthesis (10) which can be implanted, in particular into a blood vessel or another body cavity, has a variable lumen and a casing (12, 13) which consists of a sheathing material equipped with at least one incorporated medicament to be gradually administered to the patient in the implanted state of the prosthesis, or else is designed as a diaphragm-like hollow cuff with a medicament depot in the cuff cavity. The medicament is released through holes in the cuff walls. The sheathing material forming the casing can preferably be a plastically deformable, biodegradable material containing at least one medicament in the dissolved state or so as to form resides which can be administered to the patient in the implanted stated preferably at a constant delivery rate. Another embodiment envisages a casing folded around the stent which is folded open when the prosthesis is expanded and surrounds the stent without any folds in the expanded state.