Despite new improvements in coronary artery stents, there is still great concern over the failure and lifecycle of stents in patients. In this work, we explore different models of existing stents fabricated using shape memory alloy and analyze them from the mechanical failure point of view and finally propose a novel double helix stent model for coronary arteries inspired from the structure of DNA. We conducted several simulations of the model under different conditions. The experiments are conducted using hyper elastic silicone rubber mimicking the human coronary arteries and the sample stent model made of super elastic NiTi shape memory material.

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