Numerical Analysis of Kidney Stone Fragmentation by Short Pulse Impingement: Effect of Geometry

Sandro Mihradi; Hiroomi Homma; Yasuhiro Kanto

doi:10.4028/www.scientific.net/KEM.306-308.1283

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 306-308Numerical Analysis of Kidney Stone Fragmentation...

Numerical Analysis of Kidney Stone Fragmentation by Short Pulse Impingement: Effect of Geometry

Abstract:

To better understand the behavior of stresses generated inside a kidney stone by direct pulse impingement during extracorporeal shock wave lithotripsy (ESWL), numerical analyses are performed in this work. LS-DYNA, an explicit Finite Element code for non-linear dynamic analysis is employed to investigate the effect of stone geometry to the stress field evolution inside the stone when subjected to short pulse wave. Circular disks with parts removed from the front and the back are used to model the stones that assumed have already had initial fracture. The other variation of spherical geometry such as ellipse is also considered in the numerical calculation.

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Periodical:

Key Engineering Materials (Volumes 306-308)

Pages:

1283-1288

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.306-308.1283

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Online since:

March 2006

Authors:

Sandro Mihradi, Hiroomi Homma, Yasuhiro Kanto

Keywords:

ESWL, Kidney Stone, Short Pulse Wave

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