This invention is a prosthetic device generally placed on the outside surface of the vessel or graft which then elutes antiproliferative drugs or agents from a drug-eluting matrix material. Methods of perivascular antiproliferative drug administration also are disclosed. ...http://www.google.com/patents/US20040197409?utm_source=gb-gplus-sharePatent US20040197409 - Apparatus and methods for preventing or treating failure of hemodialysis vascular access and other vascular grafts
