Sirolimus - Eluting Stent Combining security and reliability as the proven SIROLIMUS unites with our Direct-Stent® platform. This unique device features: The Siro™ drug eluting stent sets the bar for other stents to follow. It combines the U.S. patented Direct-Stent® design with the proven successful Sirolimus drug to reduce tissue ingrowth and proliferation leading to reduced restenosis. Proven successful Sirolimus drug Strength of a hybrid cell stent design Premounted as low as 0.9 mm Semi-compliant balloon material Direct-Stent® U.S. patented platform Clinically proven biostable polymer