Numerical Analysis of Kidney Stone Fragmentation by Short Pulse Impingement
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- MIHRADI Sandro
- Department of Mechanical Engineering, Toyohashi University of Technology
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- HOMMA Hiroomi
- International Cooperation Center for Engineering Education Development, Toyohashi University of Technology
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- KANTO Yasuhiro
- Department of Mechanical Engineering, Toyohashi University of Technology
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Description
In this work, numerical analyses are performed to study the behavior of stresses generated inside a kidney stone by direct pulse impingement during extracorporeal shock wave lithotripsy (ESWL), which leads to fragmentation of the stone. LS-DYNA, an explicit Finite Element code for non-linear dynamic analysis is employed to model the problems. Effects of pulse duration and acoustic property of the stone on stress field evolution inside the stone are studied for the pulse duration of 0.5 to 5.0µs and two acoustic impedances of actual kidney stones. The use of double shock wave sources to fragment the kidney stone is also considered in this paper. The effectiveness of this method for the kidney stone fragmentation is confirmed. Finally, the numerical analysis for the stone fragmentation is well compared with experimental results to confirm that the numerical analyses in this work provide reasonable results.
Journal
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- JSME International Journal Series A
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JSME International Journal Series A 47 (4), 581-590, 2004
The Japan Society of Mechanical Engineers
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Details 詳細情報について
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- CRID
- 1390001206494820096
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- NII Article ID
- 110004820527
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- NII Book ID
- AA11179396
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- ISSN
- 13475363
- 13447912
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- NDL BIB ID
- 7120678
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- Text Lang
- en
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed