APPARATUS AND METHOD FOR DELIVERY OF MITOMYCIN THROUGH AN ELUTING BIOCOMPATIBLE IMPLANTABLE MEDICAL DEVICE

摘要

The present invention is an apparatus and a method for delivery of mitomycin through an eluting biocompatible implantable medical device (99). A biocompatible drug release matrix comprises a biocompatible drug release matrix and a drug (55) incorporated into the biocompatible drug release matrix. The drug (55) has antibiotic and anti-proliferative properties and is an analogue related to the quinone-containing alkylating agents of a mitomycin family. The drug (55) is initially released from the biocompatible drug release matrix at a faster rate followed by a release at a slower rate. The drug (55) release rate maintains tissue level concentrations of the drug (55) for at least two weeks after implantation of the medical device (99). The present invention provides a coating for a vascular prosthesis that elutes the drug (55) at a controlled rate to inhibit proliferation of smooth muscle cells causing restenosis.