Catheter system for forming a passage through an arterial blockage prior to atherectomy or angioplasty

摘要

The catheter system is designed for penetration of tight stenoses or total occlusions (called blockages) as a precursor to balloon angioplasty, atherectomy, or any other vessel opening means that requires an initial passageway, and comprises a catheter (20) carrying at its distal end a pointed tool, e.g. an auger (30) that may be used to open up plastic deformation of the plaque rather than by excision.