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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説明
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.
収録刊行物
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- JSME International Journal Series A Solid Mechanics and Material Engineering
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JSME International Journal Series A Solid Mechanics and Material Engineering 47 (4), 581-590, 2004
一般社団法人 日本機械学会
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詳細情報 詳細情報について
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- CRID
- 1390001206494820096
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- NII論文ID
- 110004820527
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- NII書誌ID
- AA11179396
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- ISSN
- 13475363
- 13447912
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- NDL書誌ID
- 7120678
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- 使用不可