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Special Section Technical Briefs

Coronary Stent Design Optimization Using Parametric and Nonparametric Approaches—A Proof of Concept Study1

[+] Author and Article Information
Manojkumar Chinnakonda, Manuel Biedermann, Sandy Eyl, Jegan Chinnaraju

Dassault Systèmes Simulia Corp,
Johnston, RI 02919

Gergana Dimitrova

Dassault Systèmes Deutschland GmbH,
Munich 81829, Germany

Accepted and presented at The Design of Medical Devices Conference (DMD2015), April 13–16, 2015, Minneapolis, MN, USA.

Manuscript received March 3, 2015; final manuscript received March 17, 2015; published online July 16, 2015. Editor: Arthur Erdman.

J. Med. Devices 9(3), 030953 (Sep 01, 2015) (3 pages) Paper No: MED-15-1109; doi: 10.1115/1.4030583 History: Received March 03, 2015; Revised March 17, 2015; Online July 16, 2015

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References

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. [CrossRef]
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.
Harzheim, L., 2007, Strukturoptimierung: Grundlagen und Anwendungen, Deutsch Harri GmbH, Haan, Germany.

Figures

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Fig. 1

FE analysis results of stent crimping (top) and balloon expansion steps—cut section view (bottom) with von Mises stress distribution in MPa

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Fig. 2

Isight based DOE workflow

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Fig. 3

Isight DOE response surface of peak von Mises stress during crimping analysis as a function of strut length and thickness

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Fig. 4

Evolution of stent design (top), von Mises stress in MPa (middle), and dimensionless FRF estimates (bottom) during the optimization steps

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