The Optisure™ lead expands on the St. Jude Medical high-voltage product portfolio, providing an additional system enhancement for addressing lead complications and improving system reliability. The Optisure™ lead is an 8 F addition to the Optim™ insulation lead family, providing two options of reliable ICD leads to offer more treatment choices. Building on the proven 7 F Durata™ lead design, the Optisure lead features additional Optim insulation at the proximal end of the lead, including under the SVC coil.