ABSTRACT
Metallic Composition Although nitinol, tantalum, cobalt chromium, and platinum alloys have all been tested in the coronary circulation, 316L stainless steel remains the most frequently used component of coronary stents. Cobalt chromium (L605 CoCr) alloy has become a more recent alternative. L605 CoCr is stronger, more radiopaque, and contains less nickel than 316L stainless steel. Stents manufactured from L605 CoCr feature thinner struts without compromising radial strength or radiographic visibility and provide improved deliverability compared with 316L stainless steel stents.
