| Studying the non-uniform expansion of a stent influenced by the balloon. | |
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MedLine Citation:
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PMID: 20459345 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Non-uniform expansion of cardiovascular stents, which exists widely in experiments, has a large influence on stent safety, but has seldom been studied in depth until now. In this paper we use a folded balloon with friction to expand a stent through finite element method (FEM), and study how this influences non-uniform expansion of the stent. The simulations were carried out using ABAQUES software. The results show that the stent expands non-uniformly only when the fold and friction are considered together in the FEM model. The extent of non-uniformity during expansion increases with rising friction coefficient values; with the same friction coefficient but different stent locations on the balloon the extent of non-uniform deformation is different. On the other hand, compared to a tri-folded balloon, a six-folded balloon clearly decreases the expansive non-uniformity, which means that by increasing the number of the folded parts of balloon the stent expands more uniformly. |
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Authors:
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J Yang; M B Liang; N Huang; Y L Liu |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of medical engineering & technology Volume: 35 ISSN: 1464-522X ISO Abbreviation: J Med Eng Technol Publication Date: 2010 Jul-Aug |
Date Detail:
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Created Date: 2010-07-16 Completed Date: 2010-10-13 Revised Date: 2011-05-25 |
Medline Journal Info:
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Nlm Unique ID: 7702125 Medline TA: J Med Eng Technol Country: England |
Other Details:
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Languages: eng Pagination: 301-5 Citation Subset: IM |
Affiliation:
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School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu, PR China. yangchenjie@sohu.com |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Balloon Dilation
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instrumentation*,
methods Finite Element Analysis Friction Materials Testing Software* Stents* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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