Methods and systems for placement of a stent adjacent an ostium

摘要

The present invention provides for treatment of ostial occlusions through placement of scaffold in a side-branch adjacent the ostium.

主权项

1. A method for delivering a stent to a side branch vessel adjacent to an ostium in a main branch vessel, said method comprising:
advancing a distal end of a catheter through a lumen of the side branch vessel and into a lumen of the main branch vessel until an expandable stent carried on the catheter proximal to the distal end of the catheter is located in the lumen of the side branch vessel adjacent the ostium; expanding, to an expanded state, an anchor on the distal end of the catheter while the anchor is substantially located in the main vessel lumen; pulling the catheter proximally to seat the expanded anchor in the ostium so that a portion of the expanded anchor seats in the ostium and extends through the ostium and expands a distal end of the stent within the lumen of the side branch vessel adjacent the ostium; and expanding the stent carried on a portion of the catheter proximal to the expanded anchor so that the expanded stent is positioned in the branch vessel adjacent to the ostium.