SUBINTIMAL RE-ENTRY CATHETER WITH ACTUATABLE ORIENTATION MECHANISM

摘要

A recanalization catheter for facilitating re-entry into a lumen of a blood vessel from a subintimal space. The recanalization catheter includes first and second mechanically actuatable wings positioned at a distal region of the elongate shaft of the catheter that are actuatable between a retracted position and an expanded position. In the retracted position the mechanically actuatable wings are positioned in first and second elongate channels defined in the elongate shaft, and in the expanded position the mechanically actuatable wings extend outward from the first and second elongate channels. The actuatable wings extend in an arcuate path away from the elongate shaft in the expanded position to be positionable in a circumferential orientation within a subintimal space formed in a vessel wall to automatically orient a lateral port of the elongate shaft toward the true lumen.

主权项

1. A recanalization catheter for facilitating re-entry into a lumen of a blood vessel from a subintimal space, comprising:
an elongate shaft extending distally from a hub assembly, the elongate shaft including a guidewire lumen; first and second mechanically actuatable wings positioned at a distal region of the elongate shaft, the first and second mechanically actuatable wings being actuatable between a retracted position and an expanded position with an actuation mechanism extending through the elongate shaft to the hub assembly; the distal region of the elongate shaft including first and second elongate channels opening out to an exterior of the elongate shaft; wherein in the retracted position the first and second mechanically actuatable wings are positioned in the first and second elongate channels, respectively, and in the expanded position the first and second mechanically actuatable wings extend outward from the first and second elongate channels, respectively.