Aneurysm embolic device with an occlusive member

Abstract

An aneurysm embolic device is disclosed for use in occluding the flow of blood within an aneurysm. The aneurysm embolic device includes an expandable sealing member having a circular joining member and reinforcing spokes which give the sealing member a slightly cupped configuration. The embolic device also includes an occlusive member carried by the expandable sealing member. When the aneurysm embolic device is deployed within the aneurysm, the sealing member expands and the occlusive member fills the aneurysm preventing the flow of blood within the aneurysm.

1 . A catheter-based aneurysm embolic system for occluding the flow of blood in an aneurysm, said aneurysm embolic system comprising: 
 a deployment catheter having a lumen extending therethrough and having proximal and distal ends;    an aneurysm embolic device comprising an expandable sealing member which includes a circular joining member, a plurality of reinforcing spokes attached to said circular joining member and extending radially outward from said circular joining member, and a thin circular membrane bonded to said circular joining member and said reinforcing spokes and an occlusive member comprised of an expandable foam material carried by said sealing member, and a headpiece attached to the sealing member and retained by the distal end of said deployment catheter so that when said aneurysm embolic device is placed at the neck of an aneurysm said sealing member may be expanded to seal the neck of the aneurysm and simultaneously permit expansion of said occlusive member within the aneurysm to thereby substantially fill the aneurysm.    
     
     
         2 . A catheter-based aneurysm embolic system as defined in  claim 1 , wherein said occlusive member is formed from a material such that when said occlusive member is released within the aneurysm the occlusive member expands to substantially fill the aneurysm.  
     
     
         3 . A catheter-based aneurysm embolic system as defined in  claim 2 , wherein said sealing member is cupped shaped to form convex and concave sides.  
     
     
         4 . A catheter-based aneurysm embolic system as defined in  claim 3 , wherein said occlusive member is carried by the concave side of said sealing member.  
     
     
         5 . A catheter-based aneurysm embolic system as defined in  claim 4 , wherein said circular membrane is made from a blood-impermeable polymer material.  
     
     
         6 . A catheter-based aneurysm embolic system for occluding the flow of blood in an aneurysm, said aneurysm embolic system comprising: 
 a deployment catheter having a lumen extending therethrough and having proximal and distal ends; and,    an aneurysm embolic device comprising an expandable sealing member, which generally takes the form of an expandable flexible disk, an expandable foam occlusive member carried by said sealing member, and a headpiece attached to the center of said sealing member and retained at the distal end of said deployment catheter so that when said aneurysm embolic device is placed at a mouth of an aneurysm said sealing member may be expanded to seal the mouth of the aneurysm and simultaneously permit expansion of said foam occlusive member within the aneurysm to substantially fill the aneurysm.    
     
     
         7 . A catheter-based aneurysm embolic system as defined in  claim 6 , wherein said occlusive member is formed from a material such that when said occlusive member is released within the aneurysm the occlusive member expands to substantially fill the aneurysm.  
     
     
         8 . A catheter-based aneurysm embolic system as defined in  claim 6 , wherein said sealing member is cupped shaped to form convex and concave sides.  
     
     
         9 . A catheter-based aneurysm embolic system as defined in  claim 8 , wherein said occlusive member is carried by the concave side of said sealing member.  
     
     
         10 . A catheter-based aneurysm embolic system as defined in  claim 6 , wherein said expandable sealing member is generally tubular shaped prior to expansion.  
     
     
         11 . A catheter-based aneurysm embolic system as defined in  claim 6 , wherein said expandable sealing member is made from a blood-impermeable polymer material.