SEDL / STP / STP1515-EB / STP48984S

Review of Multiaxis Fatigue Testing for Fatigue/Durability of Cardiovascular Medical Devices

Anderson, Scott
PE, Director-Cardiovascular Systems, Bose Corporation, Eden Prairie, MN

Pages: 12    Published: Jan 2010

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Abstract

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.