Preliminary Design Assessments — Lesson 5

Understanding the stent design assessments early in the process helps when deploying the stent in a blood vessel (with or without plaque). By exercising the stent through different diameters of crimp and expansion, you can learn how the stent will perform early in the stent design process.



In this lesson we will review some of the common design assessments that are performed and often required to be reported to a regulating agency such as the FDA.

Also, because the models are simpler without the vessel and plaque, the design can be easily modified and re-solved or optimized.

Lecture Video

Preliminary Design Assessments Workshop

The simulation files for this workshop can be found here.

  • Please utilize the mm, kg, N unit system when solving the Ansys simulation models.
  • Please also note that the results you obtain in these nonlinear analyses may differ slightly from those shown in the videos. Numerical round-off due to finite machine precision can be affected by the choice of the operating system, the number of cores, and the type of parallel processing (shared-memory vs. distributed-memory). Moreover, nonlinear contact and solution algorithms are often improved in each version of our software, so some changes are expected when comparing results between different releases. Thus, your results may differ slightly (within typical engineering tolerances) from the presented results, but this is to be expected for nonlinear analyses, especially for numerically unstable (e.g., underconstrained) models that may be utilized in this course.

Completed simulation files for the above example can be found here.