Patent ID: 8562643
Filing Date: 2013-10-22
Classification: A61B

Abstract:
1. An occlusion device for occluding an opening in a body tissue, the occlusion device comprising: a middle portion having a distal end extending to an opposing proximal end to define a longitudinal axis of the device, the middle portion being formed of non-woven wires and twisted about the longitudinal axis, the middle portion having a preset middle diameter; a distal portion that is attached to the distal end of the middle portion, the distal portion having a preset distal diameter and being made of a shape memory material; a proximal portion that is attached to the proximal end of the middle portion, the proximal portion having a preset proximal diameter and being made of a shape memory material; and wherein the preset middle diameter is less than each of the preset distal and proximal diameters, and wherein each of the preset middle, distal, and proximal diameters is perpendicular to the longitudinal axis.