Ablation atherectomy burr

摘要: An ablation burr for a rotational atherectomy device that may reduce the risk of damage to vessel wall while providing ablative cutting surfaces out maximum diameter burr. Two different abrasive are provided on leading surface A less aggressive or finer abrasiveness is near diameter, which portion nearest wall. This also presents relatively shallow angle attach more coarser applied portions disposed further from In one embodiment, has concave profile, thereby reducing possibility will contact wall, even when rotated significantly away axis. The body be profiled with an offset stepped sections dimensioned such particles do not extend radially beyond smooth back