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Finite element simulation and testing of cobalt-chromium stent: a parametric study on radial strength, recoil, foreshortening, and dogboning

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  • Avinash Kumar
  • Naresh Bhatnagar

Abstract

The effectiveness of cardiovascular stenting procedure depends on the crimping and expansion characteristics of a stent, influenced by its design parameters. In this study, CoCr stents are fabricated, crimped on a tri-folded balloon, and expanded using manual inflation device. Similarly, in the finite element model, a tri-folded balloon is used to expand the stent. The length and diameter are measured to evaluate the radial strength, recoil, foreshortening, and dogboning. The simulation and experimental results match satisfactorily. The validated FE model can be used with confidence to optimize future stent designs, thus reducing the number of testing and product development time.

Suggested Citation

  • Avinash Kumar & Naresh Bhatnagar, 2021. "Finite element simulation and testing of cobalt-chromium stent: a parametric study on radial strength, recoil, foreshortening, and dogboning," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 24(3), pages 245-259, February.
    • Handle: RePEc:taf:gcmbxx:v:24:y:2021:i:3:p:245-259
    DOI: 10.1080/10255842.2020.1822823
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