Patent ID: 9730700
Date: 2017-08-15
CPC Classifications: A61B,A61F,A61M

Claim:
1. A system for treating an aneurysm in a blood vessel, the system comprising: an elongate flexible shaft having a proximal region and a distal region; a first double-walled filling structure disposed over the distal region of the shaft, the filling structure having an outer wall and an inner wall, wherein the filling structure is adapted to be filled with a hardenable fluid filing medium so that the outer wall conforms to an inside surface of the aneurysm and the inner wall forms a first substantially tubular lumen to provide a path for blood flow across the aneurysm; at least a first expandable scaffold disposed at least partly within the filling structure during delivery, the first scaffold radially expandable within at least a portion of the tubular lumen of the filling structure, wherein the first scaffold and the first double-walled filling structure are distinctly separate elements; and one or more tethers coupling the first scaffold to the first filling structure, wherein the one or more tethers are configured to limit axial movement of the first filling structure relative the first scaffold so that the first scaffold and the first filling structure remain concentric with each other along the first flexible shaft during delivery and deployment of the first scaffold and the first double-walled filling structure, wherein the one or more tethers comprise a first releasable coupling mechanism that limits axial movement of the first filling structure relative the first scaffold.