The objective of this work is to characterize the interaction between balloon-expandable stents and curved artery simulants. The deformation at the outer surface of the curved artery simulant was monitored using two high-speed cameras, and the corresponding strain map was obtained with 3-D digital image correlation technique. The anisotropic variations in the arterial mechanics were clearly observed. Results indicated three distinct phases during the stenting procedure, i.e., expansion, recoil and stabilization. The stent expansion dramatically altered the strain field of the curved artery simulant, and larger strain was observed around the center of stent than its two ends. In addition, the change in curvature of the simulant during the implantation of stent was quantified. This work characterized and quantified the interaction between stent and artery simulant in a laboratory setting, which could facilitate the optimization of the stent design for minimizing the stent-induced changes in the mechanical environment of artery.
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ASME 2014 International Mechanical Engineering Congress and Exposition
November 14–20, 2014
Montreal, Quebec, Canada
Conference Sponsors:
- ASME
ISBN:
978-0-7918-4646-9
PROCEEDINGS PAPER
Stent Expansion in Curved Vessel and Their Interactions: An In Vitro Study
Shijia Zhao,
Shijia Zhao
University of Nebraska-Lincoln, Lincoln, NE
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Shengmao Lin,
Shengmao Lin
University of Nebraska-Lincoln, Lincoln, NE
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Linxia Gu
Linxia Gu
University of Nebraska-Lincoln, Lincoln, NE
Search for other works by this author on:
Shijia Zhao
University of Nebraska-Lincoln, Lincoln, NE
Shengmao Lin
University of Nebraska-Lincoln, Lincoln, NE
Linxia Gu
University of Nebraska-Lincoln, Lincoln, NE
Paper No:
IMECE2014-39293, V003T03A041; 3 pages
Published Online:
March 13, 2015
Citation
Zhao, S, Lin, S, & Gu, L. "Stent Expansion in Curved Vessel and Their Interactions: An In Vitro Study." Proceedings of the ASME 2014 International Mechanical Engineering Congress and Exposition. Volume 3: Biomedical and Biotechnology Engineering. Montreal, Quebec, Canada. November 14–20, 2014. V003T03A041. ASME. https://doi.org/10.1115/IMECE2014-39293
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