Patent ID: 6800083
Filing Date: 2004-10-05
Classification: A61B

Abstract:
An atherectomy device for ablating an occlusion in a patient's vessel, comprising:a flexible drive shaft; an ablation burr rotationally coupled to the drive shaft, the ablation burr having a proximal end including at least one flexible annular disk having a center hole and an outer edge, the annular disk having an abrasive disposed on a forwardly facing surface and a distal end comprising a nose member having an abrasive leading surface; and a catheter extending over the drive shaft, the catheter adapted to slidably receive the at least one flexible annular disk in a folded configuration, wherein portions of the flexible annular disk are rotated approximately 90Â° from an unfolded configuration; wherein the abrasive comprises a plurality of diamond particles affixed to the forwardly facing surface of the flexible annular disk.