DRUG ELUTING STENT FOR THE TREATMENT OF DIALYSIS GRAFT STENOSES

摘要

A drug-eluting stent having a first cell pattern at one end and a second cell pattern on an opposite end. The cells in the first cell pattern have a smaller MCUSA than those in the second cell pattern. An anti-restonic drug can be coated on the first cell pattern and an anti-thrombotic drug on the second, with the anti-thrombotic drug overlaying and covering both the first and second cell patterns. The stent is operatively positionable at a distal graft-vein anastomosis with the first cell pattern adjacent the stenosis, and with the second cell pattern positioned adjacent the vein or the graft.