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Effects of the ageing treatment on the superelastic behavior of a nitinol stent for an application in the esophageal duct: A finite-element analysis

Nematzadeh, F ; Sharif University of Technology | 2013

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  1. Type of Document: Article
  2. Publisher: 2013
  3. Abstract:
  4. The effects of design parameters and material properties obtained with the ageing treatment on the mechanical performance of a z-shaped esophageal-duct nitinol wire stent under the crushing tests for clinical applications are investigated with a finite-element simulation. With 90 % crushing, low chronic outward force, high radial resistive strength and favorable superelastic behavior are attained at the segment angle of 65° and the Af temperature of 24 °C. The performance of the stent is seen to drastically vary with a change of only 1° in the segment angle
  5. Keywords:
  6. Ageing treatment ; Esophageal duct ; Finite-element analysis ; Mechanical performance ; Nitinol stent
  7. Source: Materiali in Tehnologije ; Volume 47, Issue 4 , 2013 , Pages 453-459 ; 15802949 (ISSN)
  8. URL: http://mit.imt.si/Revija/izvodi/mit134/nematzadeh.pdf