METHODS AND APPARATUS FOR STENT DELIVERY AND DEPLOYMENT

摘要

For scaffolds delivered and deployed intravascularly, one or several configurations may be employed for creating a smoother transition from balloon-to-scaffold. For instance, one or more spacers may be positioned in proximity to the scaffold. Alternatively, portions of the inflatable balloon may be configured to provide a smooth transition. In another alternative, the stent edges may be shaped to provide a smooth transition. In yet other variations, any number of different combinations of such features may be employed.

主权项

1. A scaffold delivery apparatus, comprising:
a catheter having an inflatable balloon thereupon; an expandable scaffold secured upon the inflatable balloon; and a distal spacer positioned beneath or within the inflatable balloon at a location distal to the scaffold, wherein the distal spacer is tapered to widen from a distal end to a proximal end adjacent to the scaffold.