Document Detail

Elastic characteristics of the self-expanding metallic stents.
MedLine Citation:
PMID:  2968328     Owner:  NLM     Status:  MEDLINE    
We measured elastic properties of the self-expanding metallic (Gianturco) stent using Hooke's law to characterize the stent with respect to its caliber, length, and radius by a coefficient of stiffness. Although this coefficient was independent of the radius of the stent, we found that it was directly dependent on caliber. For a stent of a particular caliber and length, the fractional change in radius determined the force exerted by the stent. For small radial displacements of the stent, the force required to compress it was directly proportional to the radial displacements; for large displacements, the force depended on a power series of the fractional radial displacement. A hyperbolic function was empirically introduced to approximate this type of relationship between force and radial displacement. We calculated tension and pressure exerted by the stent and suggest the use of our findings with normal vessels.
B G Fallone; S Wallace; C Gianturco
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Investigative radiology     Volume:  23     ISSN:  0020-9996     ISO Abbreviation:  Invest Radiol     Publication Date:  1988 May 
Date Detail:
Created Date:  1988-08-08     Completed Date:  1988-08-08     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0045377     Medline TA:  Invest Radiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  370-6     Citation Subset:  IM    
Department of Diagnostic Radiology, University of Texas, M. D. Anderson Hospital and Tumor Institute, Houston 77030.
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MeSH Terms
Angioplasty, Balloon / instrumentation*
Prostheses and Implants*
Stainless Steel
Reg. No./Substance:
12597-68-1/Stainless Steel

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