Patent ID: 7195636
Filing Date: 2007-03-27
Classification: A61B

Abstract:
1. A catheter-based aneurysm neck cover system for occluding the flow of blood in an aneurysm having an open mouth with an axis extending transversely through the open mouth, said aneurysm neck cover system comprising: a deployment catheter having a lumen extending therethrough and having proximal and distal ends; and, an aneurysm neck cover comprising first and second expandable sealing members, each of said expandable sealing members being formed of a membrane and is cupped shaped to form convex and concave sides with the convex side of said first expandable sealing member facing the convex side of said second expandable sealing member in the axial direction through the open mouth when the neck cover is in place at the aneurysm, said first and second sealing members each include a circular joining member and an outer edge, the diameter of said sealing members being greater than the diameter of the open mouth of the aneurysm so that each of said sealing members will overlie opposite sides of the mouth of the aneurysm when the neck cover is in place at the aneurysm, a plurality of reinforcing spokes each having a proximal end and a distal end, said reinforcing spokes being attached to said circular joining member at said proximal end and extending radially outward from said circular joining member, each said reinforcing spoke distal end extending generally to said outer edge of the first and second sealing members to form a generally umbrella-like structure, a support element extending between the first sealing member end the center of said second sealing member, and a headpiece attached to the second sealing member and retained within the distal end of said deployment catheter so that when said aneurysm neck cover is placed at a mouth of an aneurysm said umbrella-like expandable sealing members may be expanded to seal the neck of the aneurysm to prevent the flow of blood into the aneurysm.