Patent ID: 8961555
Filing Date: 2015-02-24
Classification: A61B,A61M

Abstract:
1. A method for crossing an intravascular occlusion in a lumen, comprising the steps of: (a) inserting a guidewire into said lumen, said guidewire having a proximal end and a distal end; (b) advancing said guidewire through said lumen until said intravascular occlusion is reached; (c) placing a spreader, attached to said distal end of said guidewire, in proximity to said occlusion; (d) slidably advancing said spreader and said guidewire over a core wire until said spreader substantially achieves a larger second diameter and opens said occlusion; (e) slidably advancing said core wire through said guidewire and said spreader until said spreader substantially achieves a smaller first diameter; and (f) repeating steps c through e by advancing said guidewire and said spreader over said core wire and then advancing said core wire through said guidewire and said spreader wire until said occlusion in said lumen is fully opened.