...Tho Wei Tan; Graeham R. Douglas; Timothy Bond; A. Srikantha Phani A systematic study on the influence of the cell geometry of a cardiovascular stent on its radial compliance and longitudinal strain is presented. Eight stent cell geometries—based on common lattice cells—are compared using finite...

... to the simulation of the fabrication of a diamond shape stent specimen, followed by cyclic loading. This specimen is being used by a consortium of several stent manufacturers dedicated to the development of fatigue laws suitable for life prediction of Nitinol devices. The FEA models represent the geometry...

...Shijia Zhao; Xiangyi Liu; Linxia Gu 13 06 2011 13 06 2011 biomechanics biomedical materials blood vessels finite element analysis stents Interwoven self-expandable stents demonstrate distinct characteristics compared with laser-cut ones. In this study, the deployment...

...Nuno Rebelo; Rob Radford; Achim Zipse; Martin Schlun; Gael Dreher 09 06 2011 09 06 2011 biomedical equipment biomedical materials electrolytic polishing finite element analysis nickel alloys stents titanium alloys Finite element analysis (FEA) of Nitinol medical...

...Isa C. T. Santos; Luís A. Rocha; João Manuel R. S. Tavares 09 06 2011 09 06 2011 biomedical equipment stents During product development, ideas are narrowed down to a single one by the designers in order to satisfy the customers’ needs. This process is called concept...

... and orthopedic fixation screws. The desire to incorporate these materials in more complex load bearing situations, such as tissue engineering scaffolds and endovascular or urethral stents, is strong, but the lack of constitutive models describing the evolution of biodegradable polymers over the course...

...Jason D. Weaver; David N. Ku Covered stents could reduce restenosis rates by preventing cellular migration with a physical barrier and may have reduced thrombotic complications if an appropriate material is selected. Previous Dacron ™ or poly(tetrafluoroethylene) (PTFE) covered stents have had...

...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...

... with a single disposable device. biomedical equipment diseases microorganisms paediatrics safety shape memory effects stents surgery 10 08 2010 2010 American Society of Mechanical Engineers ...

...K. Srinivas; S. Townsend; C. J. Lee; T. Nakayama; M. Ohta; S. Obayashi; T. Yamaguchi This work attempts to optimize stents that are implanted at the neck of coronary or cerebral aneurysms to effect a flow diversion. A two-dimensional version of the stent, which is a series of struts and gaps placed...

...John J. Charonko; Saad A. Ragab; Pavlos P. Vlachos A one-dimensional finite-difference model was developed to predict pressure wave reflections in stented arteries, and a parametric study of variations in stent and vessel properties was performed, including stent stiffness, length, and compliance...