Patent ID: 9687266
Date: 2017-06-27
CPC Classifications: A61B

Claim:
1. An atherectomy catheter, comprising: a body having opposite proximal and distal ends and a longitudinal axis, the body defining a lumen extending longitudinally therein and an opening in communication with the lumen; a rotatable shaft extending longitudinally within the lumen and being rotatable relative to the body; and a cutting element adjacent the opening having opposite proximal and distal ends, a length extending between the proximal and distal ends, and an outer, major diameter, the cutting element being coupled to the rotatable shaft for rotating the cutting element relative to the body about a longitudinal axis of the cutting element, the cutting element having a cutting edge configured for cutting tissue as the cutting element rotates and an abrasive surface spaced apart from the cutting edge on at least a longitudinal portion of an outer, major diameter surface of the cutting element configured for abrading tissue as the cutting element rotates, wherein the cutting element has a working position in which the cutting edge and the abrasive surface of the cutting element are exposed through the opening in the body to engage tissue outside the body of the atherectomy.