Patent ID: 8470013

Claim:
A system for treating an aneurysm in a parent vessel, the parent vessel defining a lumen and having a lumen wall, the aneurysm having a neck communicating with the lumen, the system comprising: a flexible stent configured for placement in the parent vessel adjacent the aneurysm neck, the stent comprising a first end and a second end and a stent wall extending therebetween defining a stent bore, the stent wall permeable to blood flow, the stent wall comprising a plurality of stent cells; an inner sleeve positioned inside and coaxial with the flexible stent, the inner sleeve comprising a first end and a second end and a sleeve wall extending therebetween defining a sleeve bore, the sleeve wall comprising a plurality of sleeve cells; and an implantable barrier device configured for placement within the aneurysm neck, the barrier device positioned outside of the stent and adjacent to the stent, the barrier device formed as a disc-shaped member having a first side and a second side opposite the first side, the barrier device comprising a first compact configuration and a second expanded configuration, the barrier device impermeable to blood flow in the second expanded configuration, wherein in the second expanded configuration, the barrier device is shaped to extend across the aneurysm neck to prevent blood flow through the aneurysm neck; a vaso-occlusive device positioned outside the stent and adjacent the barrier device, the barrier device between the vaso-occlusive device and the stent, wherein when the vaso-occlusive device is in the aneurysm and the barrier device is extended across the aneurysm neck in the second expanded configuration, the barrier device retains the vaso-occlusive device within the aneurysm wherein the vaso-occlusive device comprises a balloon comprise-sing an elastomeric sheath having a plurality of zones, the zones having varying levels of elasticity.