Patent ID: 7666220

Claim:
A method for treating an aneurysm, the method comprising: positioning at least one double-walled filling structure across the aneurysm; filling the at least one filling structure with a fluid filling medium so that an outer wall formed from a substantially non-compliant material conforms to the inside of the aneurysm and an inner wall forms a generally tubular lumen to provide for blood flow, wherein the blood flow directly contacts a surface of the inner wall, and wherein the at least one filling structure substantially fills the aneurysm when filled with the fluid filling medium; supporting the tubular lumen with a support structure while and/or after the filling structure is being filled; positioning a pressure sensing member in the space between the aneurysm and an external wall of the filling structure; utilizing the sensing member to measure the pressure external the filling structure; monitoring a pressure exerted by the medium within the filling structure and/or the pressure within the space between the external wall of the structure and an aneurysm wall; controlling a flow rate of the filling medium into the filling structure responsive to the monitored pressure; stopping medium flow into the filling structure when the monitored pressure exceeds a threshold pressure, wherein the threshold pressure is in the range of about 100 to 140% of the patient's blood pressure; hardening the filling medium while the tubular lumen remains supported; and removing the support structure after the filling medium has hardened.