| 摘要 |
A method for surgically restoring a coronary artery having an atheroma, to more normal structure and function, includes the steps of: a. making an arteriotomy incision over the length of the coronary artery atheroma; b. spreading the cut edges of the arteriotomy incision; c. separating the plaque from the medial interface of a vessel wall of the coronary artery; d. extracting the atherosclerotic plaque from the coronary artery, and from any side branch artery; e. inserting a pre-expanded endocoronary stent with vessel anchor prongs into the opened coronary artery; f. closing the coronary artery over the stent with sutures; and g. applying extravascular drug delivery material over the stent implantation site. In another feature, the extravascular drug delivery material provides a local controlled release of bioactive factors to inhibit both thrombosis and smooth muscle cell proliferation. |
