Multi-objective optimization of nitinol stent design

Nowadays, self-expanding nitinol stents are widely used as part of percutaneous minimally-invasive techniques aimed at treating occluded vessels. Unfortunately, several mechanical failures of such a class of devices have been observed [1]; this drawback often results in loss of scaffolding capabilities of the stent, thrombus formation, and restenosis [2,3]. In particular, partial or total stent fractures have been found in aortic [4], renal [5], and pulmonary [6] implants, as well as in lower limb arteries, i.e., superficial femoral artery (SFA) and popliteal artery [7 –10].

Source: Medical Engineering and Physics - July 10, 2017 Category: Biomedical Engineering Authors: G. Alaimo, F. Auricchio, M. Conti, M. Zingales Source Type: research