1. Finite element simulation and testing of cobalt-chromium stent: a parametric study on radial strength, recoil, foreshortening, and dogboning
- Author
-
Avinash Kumar and Naresh Bhatnagar
- Subjects
Chromium ,Materials science ,medicine.medical_treatment ,Finite Element Analysis ,0206 medical engineering ,Cobalt chromium stent ,Biomedical Engineering ,Bioengineering ,02 engineering and technology ,Prosthesis Design ,Balloon ,Finite element simulation ,03 medical and health sciences ,0302 clinical medicine ,Recoil ,Materials Testing ,Pressure ,medicine ,Humans ,Computer Simulation ,Parametric statistics ,Stent ,Cobalt ,030229 sport sciences ,General Medicine ,Mechanics ,020601 biomedical engineering ,Finite element method ,Biomechanical Phenomena ,Computer Science Applications ,Human-Computer Interaction ,Calibration ,Stents ,Stress, Mechanical ,Fe model - 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.
- Published
- 2020