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Development of Experimental and Computational Models to Evaluate the Stability of Aortic Stent Grafts in Motor Vehicle Accidents

[+] Author Affiliations
Kurosh Darvish, Mehdi Shafieian, Vasily Romanov, Vittorio Rotella, Michael D. Salvatore, Jr., John Blebea

Temple University, Philadelphia, PA

Paper No. SBC2007-176635, pp. 751-752; 2 pages
doi:10.1115/SBC2007-176635
From:
  • ASME 2007 Summer Bioengineering Conference
  • ASME 2007 Summer Bioengineering Conference
  • Keystone, Colorado, USA, June 20–24, 2007
  • Conference Sponsors: Bioengineering Division
  • ISBN: 0-7918-4798-5
  • Copyright © 2007 by ASME

abstract

A high speed impact system was developed to study the stability of stent grafts in thoracic porcine models in vitro. The experiments were guided by a finite element model of the test setup to identify the conditions that increase the risk of instability of the stent graft. The models showed that at anterior inclination of 45° and average deceleration of 40 G, which represented a frontal crash, the stent graft can move up to 1 mm. The results of this study may be helpful in developing future grafts to withstand shocks experienced in motor vehicle accidents.

Copyright © 2007 by ASME

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