VASCULAR DEVICE FOR VALVE LEAFLET APPOSITION

摘要

The present invention provides an intravascular device which brings the vessel wall adjacent the vein valve radially inwardly to bring valve leaflets into opposition. The present invention, in one aspect provides a vascular device movable from a collapsed insertion position having a first diameter to an expanded position having a second larger diameter. A plurality of vessel engaging members extend outwardly from the device for securely engaging the internal wall of a vessel upon expansion of the device to the second expanded position. The vessel engaging members pull the internal wall of the vessel radially inwardly upon movement of the device from the second expanded position toward a first expanded position having a third diameter greater than the first diameter and smaller than the second diameter.