Vascular occlusion devices utilizing thin film nitinol foils

Abstract

A deployable occlusion device for filling an aneurysm. The occlusion device includes a support structure, for example a wire or otherwise elongate structure. The occlusion device also includes a mesh component having a porosity. The mesh component has a first end portion and a second end portion. The first end portion of the mesh component is attached to the support structure and the second end portion of the mesh component is a free end. The mesh component extends from the support structure.

1 . (canceled) 
     
     
         2 . An implantable occlusion device for filling an aneurysm, the occlusion device comprising:
 an elongate support structure; and   a mesh component comprising arrays of rings, each ring configured to deform in any direction, the mesh component comprising a first end portion and a second end portion, the first end portion being attached to the support structure and the second end portion being a free end, the mesh component extending from the support structure.   
     
     
         3 . The occlusion device of  claim 2 , wherein the mesh component is configured to transition between a first configuration and a second configuration when deployed in the aneurysm. 
     
     
         4 . The occlusion device of  claim 3 , wherein in the first configuration, the mesh component is wrapped around the support structure with overlapping portions. 
     
     
         5 . The occlusion device of  claim 3 , wherein the second configuration forms a three-dimensional configuration. 
     
     
         6 . The occlusion device of  claim 2 , wherein each ring in the mesh component is configured to connect to surrounding rings. 
     
     
         7 . The occlusion device of  claim 2 , further comprising a plurality of mesh components attached to the support structure. 
     
     
         8 . The occlusion device of  claim 2 , wherein the support structure comprises a coiled wire. 
     
     
         9 . The occlusion device of  claim 2 , wherein the support structure comprises a straight wire. 
     
     
         10 . The occlusion device of  claim 2 , wherein the mesh component is attached to the support structure by adhesive, welding, or soldering. 
     
     
         11 . The occlusion device of  claim 2 , wherein the mesh component is a monolithic sheet. 
     
     
         12 . The occlusion device of  claim 2 , wherein diameters of the arrays of rings are substantially the same before any deformation. 
     
     
         13 . An implantable occlusion device for filling an aneurysm, the occlusion device comprising:
 a support structure comprising a proximal end and a distal end; and   a plurality of mesh components longitudinally spaced along the support structure, each mesh component comprising arrays of rings, each ring configured to deform in any direction, the mesh component being configured to transition between a first configuration and a second configuration.   
     
     
         14 . The occlusion device of  claim 13 , wherein in the first configuration, each mesh component is wrapped around the support structure with overlapping portions. 
     
     
         15 . The occlusion device of  claim 13 , wherein in the second configuration, each mesh component comprises a three-dimensional configuration that occupies a volume. 
     
     
         16 . The occlusion device of  claim 13 , wherein each mesh component comprises a disc having a slot. 
     
     
         17 . The occlusion device of  claim 16 , wherein the disc of each mesh component has a conical shape in the second configuration, the conical shape comprises an apex and an open end, the apex of the disc of each mesh component being attached to the support structure. 
     
     
         18 . The occlusion device of  claim 13 , wherein each ring in the mesh components is configured to connect to surrounding rings. 
     
     
         19 . A method of deploying an occlusion device into an aneurysm, the method comprising:
 advancing a delivery system carrying the occlusion device to the aneurysm, the occlusion device comprising a support structure and a plurality of mesh structures extending from the support structure, the plurality of mesh structures wrapped around the support structure in a first configuration when loaded in the delivery system, each mesh structure having arrays of rings, each ring configured to deform in any direction;   deploying the occlusion device from the delivery system such that the occlusion device transitions from the first configuration to a second configuration; and   releasing the occlusion device from the delivery system.   
     
     
         20 . The method of  claim 19 , wherein advancing the delivery system comprises advancing the delivery system through a curved region in vasculature, the curved region having an inner radius and an outer radius, a first portion of each mesh structure expanding along an axis of bending along the outer radius and a second portion of each mesh structure contracting along the axis of bending along the inner radius. 
     
     
         21 . The method of  claim 19 , wherein each ring in the mesh structures is configured to connect to surrounding rings.