Publication detail

NiTi Self-expanding Vascular Stent Configuration and Biomedical Interaction with Artery: Finite Element Analysis

SHAYANFARD, P. ŠANDERA, P. HORNÍKOVÁ, J. PETRUŠKA, J. ŠITTNER, P. POKLUDA, J.

Original Title

NiTi Self-expanding Vascular Stent Configuration and Biomedical Interaction with Artery: Finite Element Analysis

English Title

NiTi Self-expanding Vascular Stent Configuration and Biomedical Interaction with Artery: Finite Element Analysis

Type

conference paper

Language

en

Original Abstract

In spite of the fact that the US Food and Drug Administration (FDA) has approved Intracoil and s.m.a.r.t Nitinol stents for superficial femoral artery (SFA), some alternative designs of Nitinol stents are being implanted today, representing the off-label use of the devices. Among the currently stents used for the SFA, s.m.a.r.t and Intracoil stents show the most desirable long-term results but it is not understood why. In the present work, delivery of the s.m.a.r.t and Intracoil. Nitinol stents and their release inside a stenotic point of the artery was simulated by FE implemented SMA model using a creative manual controlled method. The influence of the stent design on the stent – vessel interactions and stress state within the stent material after completion of the deployment was revealed. It was found that the Intracoil stent shall be more successful in eliminating the stenosis and less prone to fatigue failure, even though it had less thickness and less mean coil diameter.

English abstract

In spite of the fact that the US Food and Drug Administration (FDA) has approved Intracoil and s.m.a.r.t Nitinol stents for superficial femoral artery (SFA), some alternative designs of Nitinol stents are being implanted today, representing the off-label use of the devices. Among the currently stents used for the SFA, s.m.a.r.t and Intracoil stents show the most desirable long-term results but it is not understood why. In the present work, delivery of the s.m.a.r.t and Intracoil. Nitinol stents and their release inside a stenotic point of the artery was simulated by FE implemented SMA model using a creative manual controlled method. The influence of the stent design on the stent – vessel interactions and stress state within the stent material after completion of the deployment was revealed. It was found that the Intracoil stent shall be more successful in eliminating the stenosis and less prone to fatigue failure, even though it had less thickness and less mean coil diameter.

Keywords

Self-expanding; stent; Nitinol; Superficial femoral artery (SFA); popliteal artery; Intracoil; s.m.a.r.t; Finite Element

Released

31.01.2017

Publisher

Trans Tech Publications, Switzerland

Location

Švýcarsko

ISBN

978-3-03835-626-4

Book

Solid State Phenomena

Pages from

366

Pages to

369

Pages count

4