Publication number:
US 8,956,475 B2
Priority date:
December 11, 2007
Publication type:
Grant
Filing date:
April 2, 2012
Application number:
US 13/437,777
Publication Date:
February 17, 2015
Also published as:
- Sphere
A two dimensional filament shape produced from a flexible sheet material, capable of being formed into a complex three dimensional Spheroid shape. In addition, the filaments forming the sphere may have variable geometries to promote superior reconfiguration within the vasculature.
US 8,956,475 B2
Abstract:
A method for making a device for causing thrombosis of an aneurysm, wherein said device comprises a single elastic filament configurable between (i) an elongated, substantially linear configuration, and (ii) a longitudinally-contracted, substantially three-dimensional configuration, said method comprising:providing a sheet of shape memory material;
- producing a single filament, two-dimensional interim structure from said sheet of shape memory material;
- mounting said single filament, two-dimensional interim structure to a fixture so that said single filament, two-dimensional interim structure is transformed into said longitudinally-contracted, substantially three-dimensional configuration; and
- heat treating said single filament, two-dimensional interim structure while it is mounted to said fixture so as to produce said device in its longitudinally-contracted, substantially three-dimensional configuration.