TightRail Sub-C rotating dilator sheath completes Spectranetics' portfolio of mechanical devices for lead extraction. Sub-C is specifically designed for the challenges of the subclavian region, including vessel entry when fibrosis and calcium are present. Tightrail Sub-C helps solve the complex issues surrounding vascular access with an improved cutting tip, lower profile for safe passage under tight clavicular spots and a shielded cutting mechanism that allows you to get through occlusions with lower risk of damaging the targeted lead or adjacent leads.