Biomedical engineers design stents to open or prevent blockages in arteries. They must consider and optimize a number of design parameters to ensure a stent has the flexibility to withstand localized forces, and the structural integrity to retain its artery-opening shape. If segments of the stent are too thin, individual pieces could break off and cause damage to the artery walls or further block blood flow. The stents must also not constrict blood flow by promoting laminar flow through the arteries. Ninsight faced the challenge of quickly ideating and simulating stent designs that met all these performance criteria.
Use of ANSYS Discovery Live:
Initially, Ninsight designers used Discovery Live to benchmark some previous studies, but quickly applied the technology to solving the time delay associated with completing geometry changes and obtaining simulation results. Realizing that parametric studies were of little value, because changes to stents needed to be more dramatic and “outside the box,” they used the geometry editing capabilities in Discovery Live to ideate an initial concept, then gain instantaneous insight around their design. They were able to analyze and predict the structural and fluid performance of their designs, then use flagship solvers to perform more detailed simulations on the most promising designs.