Free Expansion Behaviour of Coronary Stent Based on Strut Linker Geometry

An ideal stent is stent with good endurance against pressure from its surrounding so that the stent failure can be avoided. Geometry analysis can be used to find out the stent characteristics before and after expanded using balloon angioplasty. The aim of this research is to evaluate the free expansion behavior of coronary stent based on the geometry of strut linker using finite element method. Pressure load was added into inner surface of stent to get the von Mises stress maximum value and its distribution. The results showed that strut linker geometry affected free expansion behavior.