Numerical Simulation of the Micro-explosion during Ho:YAG laser lithotripsy

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外文摘要：The micro-explosion during Ho:YAG laser lithotripsy may cause calculus fragmentation and migration。。 It plays an important role to the surgery。 A numerical simulation of the micro-explosion during Ho:YAG laser lithotripsy has been developed。 The explosion problem in water environment was solved by the Euler algorithm and the piecewise parabolic method (PPM) was selected in the calculation。 This simulation investigated the explosion dynamics evolution in the lithotripsy area。 The pressure and intensity of the calculus surface were calculated for different laser pulse energy and different distance between calculus and fiber tip。 The calculation results indicate that the microexplosion's properties are determined by the pulse energy， pulse duration and the water distance。 Though Short pulse duration and large pulse energy cause high ablation efficiency， it mains more calculus retropulsion at the same time。 The ideal surgery results need property laser parameters。

外文关键词：

laser lithotripsynumerical simulationmicro-explosionHo:YAG laser

作者：

Yao Yucheng、Huang Chuyun、Xu Guowang、Yan Xudong、Wang Yanlin

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作者单位：

Physics school, Hubei University of Technology, HuBei Wuhan Institute of Optoelectronic Science and Engineering, HUST, HuBei Wuhan

Physics school, Hubei University of Technology, HuBei Wuhan

会议名称：

PIBM 2010;International conference on photonics and imaging in biology and medicine

会议地点：

Wuhan(CN);Wuhan(CN)

会议母体文献：

The 9th International conference on photonics and imaging in biology and medicine.

页码：

p.1-6

出版时间：

2010