Patent ID: 8663301
Filing Date: 2014-03-04
Classification: A61B,A61F

Abstract:
1. A device for positioning within a lumen of a blood vessel, adjacent to the mouth of an aneurysm extending from the blood vessel, for causing thrombosis of the aneurysm while maintaining substantially normal blood flow through the lumen of the blood vessel, the device consisting of: a single closed loop of elastic filament configurable between: (i) an elongated, substantially linear configuration formed by two parallel lengths of the closed loop of elastic filament, whereby to facilitate movement along the lumen of the blood vessel; and (ii) a spheroidal configuration for lodging within the lumen of the blood vessel, the spheroidal configuration providing (a) a single flow-restricting face sized and configured so as to cover the mouth of the aneurysm and restrict blood flow to the aneurysm, the size of the single flow-restricting face being larger than the mouth of the aneurysm so that the single flow-restricting face seats against the mouth of the aneurysm so as to restrict blood flow to the aneurysm while permitting substantially normal blood flow through the blood vessel when the flow-restricting face is positioned over the mouth of the aneurysm, with the degree of restriction at the mouth of the aneurysm being such that the aneurysm thromboses when the single flow-restricting face is positioned over the mouth of the aneurysm, the single, flow-restricting face comprising a plurality of lengths of the closed loop of elastic filament disposed in close proximity to one another, and (b) an open frame for engaging the interior side wall of the blood vessel and holding the single flow-restricting face against the mouth of the aneurysm, the open frame configured so as to maintain substantially normal blood flow through the lumen of the blood vessel, wherein the single flow-restricting face has a higher density of wire than the open frame.