Volume 6, Issue 6 (June 2009)
Review of Multiaxis Fatigue Testing for Fatigue/Durability of Cardiovascular Medical Devices
The use of nitinol stents in the superficial femoral artery (SFA) is becoming commonplace. The SFA is a tortuous biomechanical environment that has challenged the durability of these devices. A thorough understanding of the biomechanical loading environment is necessary to design and evaluate new stents. This paper reports recent methods for use of bench testing as a tool to predict fatigue fracture of stents for complex multimode duty cycles.