Abstract：
:Intravascular stents are small tube-like structures expanded into stenotic arteries to restore blood flow perfusion to the downstream tissues. The stent expansion is an important factor to define the effectiveness of the surgical procedure: it depends on the stent geometry and includes large displacements and deformations, geometric and material non-linearity. Numerical analyses seem appropriate to study such a complex behaviour after a free stent expansion. In this study the finite element method (FEM) was applied to a new generation coronary stent. Results from computations were compared with those from a laboratory experiment in terms of radial expansion and elastic recoil. By means of a scanning electronic microscopy the area of plastic deformation were also detected and compared with those obtained in the numerical simulation. Matching between the different measurements was quite satisfactory even if some discrepancies were present due to the absence of the balloon in the numerical model.
journal_name
Med Eng Physjournal_title
Medical engineering & physicsauthors
Migliavacca F,Petrini L,Montanari V,Quagliana I,Auricchio F,Dubini Gdoi
10.1016/j.medengphy.2004.08.012subject
Has Abstractpub_date
2005-01-01 00:00:00pages
13-8issue
1eissn
1350-4533issn
1873-4030pii
S1350-4533(04)00144-4journal_volume
27pub_type
杂志文章abstract：:Aims of the present study were to test the hypotheses that (1) the compressive properties of articular cartilage are affected more by changes in the medium ionic concentration than the tensile properties, (2) collagen network controls the compression-tension nonlinearity of articular cartilage, and (3) proteoglycan (P...
journal_title：Medical engineering & physics
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journal_title：Medical engineering & physics
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abstract：:Biomagnetic investigations in basic physiological research using animals require measurement devices different from commercial biomagnetometers used in human investigations. Two major problems have to be tackled in the design of such biomagnetometers. First, the spatial sampling needs to be much higher. Second, the di...
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journal_title：Medical engineering & physics
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journal_title：Medical engineering & physics
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更新日期：2011-01-01 00:00:00
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pub_type： 临床试验,杂志文章
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更新日期：2003-10-01 00:00:00
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journal_title：Medical engineering & physics
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更新日期：1994-03-01 00:00:00
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doi：10.1016/j.medengphy.2019.09.016
更新日期：2019-12-01 00:00:00
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