The PRO-Kinetic Energy Explorer used advanced stent materials to deliver balloon catheter in complex anatomical areas such as calcified below-knee lesions. The Cobalt Chromium L-605 material allows the stent to be thinner and the using metal-artery ration, the stent can be accurately placed. The PROBIO coating reduces platelet aggregation and promotes faster healing. The material also acts as an effective barrier to heavy metal ion release that can add to possible restenosis.