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

被引：0

作者：

Yao Yucheng ^{[1
]}

Huang Chuyun ^{[1
]}

Xu Guowang ^{[1
]}

Yan Xudong ^{[1
]}

Wang Yanlin ^{[1
]}

机构：

[1] Hubei Univ Technol, Sch Phys, Wuhan, HuBei, Peoples R China

来源：

9TH INTERNATIONAL CONFERENCE ON PHOTONICS AND IMAGING IN BIOLOGY AND MEDICINE (PIBM 2010) | 2011年 / 277卷

关键词：

laser lithotripsy; numerical simulation; micro-explosion; Ho:YAG laser; PIECEWISE PARABOLIC METHOD; WATER DROPLETS; DYNAMICS; CO2-LASER; ABLATION; GAS;

D O I：

10.1088/1742-6596/277/1/012048

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

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 micro-explosion'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.

引用

页数：6