A distal atherectomy catheter is disclosed for removing obstructions, plaque, stenosis, occlusions, or the like from an artery or coronary vessel. The catheter comprises a flexible, hollow catheter tube. A cutting element is located within a cylindrical housing mounted at the distal end of the...http://www.google.co.uk/patents/US5728129?utm_source=gb-gplus-sharePatent US5728129 - Distal atherectomy catheter