... for different hypothetical ranges of cyclic stress is presented in Fig. 8 . The horizontal line represents the stent constant lifetime projected to survive 400 × 10 6 cycles. The intersection of this dashed line and constant lifetime lines for several different stress cyclic ranges is the maximal flaw size...

... of the bladder and makes a reservoir for bacteria colonization, which plays an essential role in the pathogenesis of catheter or stent-associated infections. In addition, the expandable and collapsible nature of the tube allows for easy insertion and removal of the stent within the urethra of patients...

... In stent restenosis is the major disadvantage of percutaneous transluminal angioplasty [ 1 ]. To overcome this limitation, drug eluting stents were introduced. These stents contains anti-proliferative drugs like sirolimus and paclitaxel which acts on vascular smooth muscle cells and prevents neointimal...

...Linxia Gu; Shijia Zhao; Aswini K. Muttyam; James M. Hammel Two commercially available stents (the Palmaz–Schatz (PS) and S670 stents) with reported high and low restenosis rates, respectively, have been investigated in this paper. Finite element models simulating the stent, plaque, and artery...

...K. Srinivas; T. Nakayama; M. Ohta; S. Obayashi; T. Yamaguchi The stent design itself seems to be one of the factors responsible for restenosis. As a remedy, the present work attempts to perform a design optimization of coronary stents from a hemodynamic point of view. For the purpose, we have...

...Niels Grabow; Carsten M. Bünger; Katrin Sternberg; Steffen Mews; Kathleen Schmohl; Klaus-Peter Schmitz Background: Biodegradable polymeric stents represent a competitive approach to permanent and absorbable metallic stents for vascular applications. Despite major challenges resulting from...