System Provides Physicians New Option for Treating Complete Blockages in the Major Arteries of the Leg Boston Scientific has announced the U.S. launch and first use of the OffRoad™ Re-Entry Catheter System, an important addition to the company's portfolio of tools to treat complete arterial blockages in the major arteries of the legs. These blockages, called chronic total occlusions (CTOs), are associated with advanced peripheral artery disease (PAD). The first use of the OffRoad System was performed by J.A. Mustapha, M.D., director of Cardiac Catheterization Laboratories, director of Endovascular Interventions, and director of Cardiovascular Research at Metro Health Hospital in Wyoming, Mich. The OffRoad Re-Entry Catheter System is intended to help physicians navigate around complete arterial blockages by traveling within the tissue of the vessel wall (subintimal space). Once the catheter has passed the blockage, a unique conical-shaped positioning balloon is used to expand the subintimal space and direct a micro-catheter lancet to re-enter the vessel. This allows the physician to position a guidewire across the occlusion and to then treat the blockage using traditional endovascular techniques such as angioplasty and stenting.