Design optimizations of PLA stent structure by FEM and investigating its function in a simulated plaque artery

Mohammad Mehdi Torki, Shadi Hassanajili and Marc Mehrzad Jalisi

Mathematics and Computers in Simulation (MATCOM), 2020, vol. 169, issue C, 103-116

Abstract: Proper design and optimization in stent parameters are required for efficient use of stents in coronary arteries. Efficiency depends on features including resistance against vessel pressures, (Radial Strength) limited variation in length during expansion (Foreshortening & Recoil) and resistance of stents in periodic/cyclic pressure & tension of heart pulsation (Fatigue Life Cycle). It is customary to design a stent based upon materials endurance limit which is equivalent to 0.5 of the yield strength for stainless steel in order to accomplish physically infinite life cycle for the stent.

Keywords: Polymeric stent; Poly-lactic acid (PLA); Finite element analysis; Optimization (search for similar items in EconPapers)
Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:eee:matcom:v:169:y:2020:i:c:p:103-116

DOI: 10.1016/j.matcom.2019.09.011

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