Intrasacular Aneurysm Occlusion Device with Embolic Members Inserted between an Outer Mesh and an Inner Mesh
This invention is an intrasacular aneurysm occluding device with a flexible outer mesh and a resilient inner structure inside the outer mesh, wherein embolic members are inserted between the flexible outer mesh and the resilient inner structure.
1 . An intrasacular aneurysm occluding device comprising:
a longitudinal lumen that is configured to be inserted into a blood vessel from which an aneurysm sac has formed;
an expandable flexible member that is inserted and expanded within the aneurysm sac;
an expandable resilient structure that is expanded within the flexible member; and
embolic members, wherein the flexible member is expanded by being filled with the embolic members delivered through the lumen.
2 . The device in claim 1 wherein the longitudinal lumen is a catheter.
3 . The device in claim 1 wherein the embolic members are coils.
4 . The device in claim 1 wherein the resilient structure is a wire mesh.
5 . The device in claim 1 wherein the resilient structure self-expands.
6 . The device in claim 1 wherein the resilient structure has a post-expansion shape that is selected from the group consisting of spherical, ellipsoidal, toroidal, compressed-sphere shaped, egg shaped, Saturn shaped, hour-glass shaped, peanut shaped, beehive shaped and geodesic.
7 . The device in claim 1 wherein the flexible member is a net or mesh.
8 . The device in claim 1 wherein the flexible member is compressed as it travels through the lumen and then expanded within the aneurysm sac.
9 . The device in claim 1 wherein the flexible member is folded as it travels through the lumen and then unfolded within the aneurysm sac.