Patent ID: 8568465
Filing Date: 2013-10-29
Classification: A61B,A61F

Abstract:
1. A device for rechanneling a cavity, organ, path, or vessel which is at least partially occluded by at least one compressible occlusive object, such as a thrombus or embolus, in the body of a human or animal, comprising: at least one compressible and self-expanding stent having a reticular structure, said stent having a compressed configuration adapted for positioning within a lumen, and having an expanded configuration; said stent having a hollow substantially cylindrical body defined by a sidewall; said stent having a distal end, and having a proximal end in an engagement with said lumen as a means to maintain a connection with said lumen during insertion into said body and until removal thereof from said body, said sidewall at said proximal end of said stent in said expanded configuration having an outward taper from a narrowest diameter adjacent to engagement with said lumen, to a wider second diameter at a widened proximal portion of said sidewall; said sidewall at said distal end having an inward taper from a larger diameter distal end for a distance toward said widened proximal portion; said inward taper defining a recess in said sidewall, said recess having a smaller diameter than said distal end and said widened proximal portion; said stent sidewall formed entirely in a reticular structure having a multiplicity of openings therein, said stent in said expanded configuration sized to exert and expanding force to opposing sides of a cavity, organ, path, or vessel in which it is situated in an as-used position; said openings configured with an opening width which is smaller than the dimensions of the occlusive object to be compressed; said openings providing means for maintaining substantially full fluid flow through all areas of said sidewall thereby minimizing any impedance of fluid flow therethrough; said recess providing means for an entrapment of said occlusive object and a concurrent compression of said occlusive object, when said stent is in said expanded configuration in said as-used position in between said occlusive object and a said opposing side surface of said cavity, organ path or vessel; said entrapment providing means for prevention of a repositioning of said occlusive object within said cavity, organ, path, or vessel; and said fluid flow through said openings providing means for a fluid rechanneling through said stent sidewall in said as-used position; wherein: