Patent ID: 9456842
Filing Date: 2016-10-04
CPC Classification: A61B,A61M

Claim Text:
1. A recanalization catheter assembly for recanalizing a blood vessel having an occlusion in a lumen thereof, the catheter assembly comprising: an elongate shaft including a tubular portion having a lumen, a distal opening, and a guide member fixed to and extending distal of the distal opening, the guide member including a guidewire lumen for receiving a guidewire therethrough; a rotary ablation tool extending distally from the distal opening alongside the guide member; and a cutting member between the guide member and the rotary ablation tool, the cutting member located proximal of the rotary ablation tool; wherein the guide member is configured to be advanced over a guidewire in a subintimal space between a first tissue layer and a second tissue layer of a wall of the blood vessel, while the rotary ablation tool is advanced in the lumen of the blood vessel to ablate the occlusion, wherein the cutting member is configured to cut through the first tissue layer between the guide member and the rotary ablation tool as the rotary ablation tool is advanced distally through the occlusion, wherein the rotary ablation tool includes a drive shaft rotatably extending through the lumen of the elongate shaft.