Occlusion Bypassing Apparatuses and Methods for Bypassing an Occlusion in a Blood Vessel

摘要

Occlusion bypassing apparatuses are disclosed for re-entering the true lumen of a vessel after subintimally bypassing an occlusion in a vessel. The occlusion bypassing apparatuses include a shaft component and a needle component slidably disposed within the shaft component and having an angled configuration when deployed. In embodiments hereof, the needle component has an angled distal tip segment that may be utilized to selectively bend a flexible distal portion of the shaft component in order to extend the flexible distal portion towards the true lumen of the vessel. The needle component is distally advanced relative to the shaft component to pierce through the intima of the vessel and thereafter enter the true lumen.

主权项

1. An apparatus for bypassing an occlusion in a blood vessel comprising:
a shaft component defining a lumen that extends from a proximal end to distal end thereof and having a distal tip portion that is bendable relative to a proximal portion thereof; at least one balloon mounted on the shaft component proximate of the distal tip portion thereof, and a needle component configured to be slidably disposed within the shaft component lumen and removable therefrom, the needle component having a proximal segment and an angled distal tip segment, wherein in a first configuration of the apparatus the angled distal tip segment of the needle component is held in a straightened form within the shaft component and wherein in a second configuration of the apparatus the angled distal tip segment of the needle component bends the distal tip portion of the shaft component away from a longitudinal axis of the proximal portion.