Design of new coronary stents involves consideration of various performance criteria including radial stiffness, durability, crimpability, material, and manufacturing choices among others. As it is time consuming and expensive to evaluate and optimize the stent designs by means of prototyping and physical testing, computer simulation offers powerful techniques to conduct virtual optimization of the stent designs early during device development. In this proof-of-concept work, a process for optimizing a representative coronary stent model through parametric and nonparametric approaches is demonstrated, and the evolution of design and performance measures of the stent through the optimization steps are discussed.

A stainless steel, balloon deployed coronary stent of dimensions 8.5 mm length, 1.5 mm outer diameter, and 0.15 mm thickness is considered. The base geometry of the stent is modeled as a parameterized 2D surface developed in SolidWorks. The 2D geometry is then meshed, extruded, and wrapped to...

References

References
1.
Holzapfel
,
G. A.
,
Gasser
,
T. C.
, and
Ogden
,
R. W.
,
2000
, “
A New Constitutive Framework for Arterial Wall Mechanics and a Comparative Study of Material Models
,”
J. Elasticity
,
61
(
1–3
), pp.
1
48
.10.1023/A:1010835316564
2.
Kandil
,
F. A.
,
Brown
,
M. W.
, and
Miller
,
K. J.
,
1982
,
Biaxial Low Cycle Fatigue Fracture of 316 Stainless Steel at Elevated Temperatures
, Book 280,
The Metals Society
,
London
.
3.
Harzheim
,
L.
,
2007
,
Strukturoptimierung: Grundlagen und Anwendungen
,
Deutsch Harri GmbH
, Haan, Germany.
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