OCCLUSION BYPASSING APPARATUS WITH A RE-ENTRY NEEDLE AND A STABILIZATION TUBE

摘要

An occlusion bypassing apparatus (100) for re-entering the true lumen of a vessel after subintimally bypassing an occlusion in a vessel. The apparatus includes an outer shaft component (102, 602) having a needle lumen (109) there-through. A proximal end (104) of the outer shaft component is fixed within a handle (151) of the apparatus at a first attachment point (124). A stabilization tube (110) of the apparatus is disposed within the needle lumen. A proximal end (111) of the stabilization tube is fixed within the handle at a second attachment point (128) that is spaced apart from the first attachment point and an elongated body (114) and a distal end (115) of the stabilization tube are not attached to the outer shaft component. A needle component (134) of the apparatus is configured to be slidably disposed within the stabilization tube and removable therefrom, and the stabilization tube minimizes resistive forces exerted onto the needle component by the outer shaft component.