Journal of Biomedical Engineering and Medical Devices
Open Access
ISSN: 2475-7586
ISSN: 2475-7586
Mechanical Engineering Department, Indian Institute of Technology, Delhi, India
Ramya Ahuja is a Professor of Mechanical Engineering Department, Indian Institute of Technology, Delhi, located in India. Her Current Research Interest Includes Design Methodology of a Balloon Expandable Polymeric Stent.
Research Article
Design Methodology of a Balloon Expandable Polymeric Stent
Author(s): Avinash Kumar, Ramya Ahuja, Pooja Bhati, Priya Vashisth and Naresh Bhatnagar*
In the present work, a finite element-based study is undertaken to evolve a design methodology for developing a
polymeric stent. Design steps include (1) crimping a stent cut from a polymer tube having outer diameter of 3 mm
to a crimped diameter of 1.6 mm, (2) crimping recoil, (3) deployment of crimped stent to 3.3 mm outer diameter,
(4) expansion recoil (mimicking crimping and dilation process to treat a 3 mm inner diameter artery) and (5) recoil
under pressure. Effect of stent geometry parameters such as crown radius, length, width and thickness on the
performance parameters such as radial strength, parallel plate collapse force, radial stiffness, recoil, foreshortening,
maximum stresses, and strains are studied. The parametric study further aims to develop a design methodology
for polymeric stent mechanical performance evaluation. The effect of crown sh.. View More»
DOI:
10.35248/2475-7586.19.4.139