APPARATUS AND METHODS FOR SELECTIVELY STENTING A PORTION OF A VESSEL WALL

摘要

Methods and apparatus for treating vascular abnormalities in highly tortuous vessels are provided comprising a stent (10) having at least one end region (16) that engages a first portion of a circumference of a vessel in a region adjacent to an abnormality to anchor the stent (10), and a mid-region (15) that engages a second portion (18) of the circumference of the vessel wall to span the abnormality, the second portion (18) having a smaller circumferential extent than the first portion (16). The mid-region (15) includes a plurality of members (20) that span the abnormality and form a lattice that occludes the abnormality. A delivery system (30) also is provided to deliver the stent within a parent artery and orient the mid-region (15) of the stent (10) to span the abnormality.