Heat Transfer Analysis on Laser-tissue Thermal Interaction Using Heterogeneous Model

LI Hejie; ZHANG Xuexue; LIU Jing

Chinese Journal of Lasers B, 2002, 11 (3): 233, 网络出版: 2006-08-08

Heat Transfer Analysis on Laser-tissue Thermal Interaction Using Heterogeneous Model

论文大纲

LI Hejie ¹ZHANG Xuexue ¹LIU Jing ²

作者单位

¹ Department of Thermal Engineering,Tsinghua University,Beijing 100084,China

² Cryogenic Laboratory,The Chinese Academy of Sciences,Beijing 100080,China

laser medicine bio-tissue thermal interaction heat transfer heterogeneous thermal properties multiplayer model apparent conductivity

摘要

Abstract

Considering the heterogeneous thermal properties of living tissues,a multi-layer heat transfer model for laser-tissue thermal interaction is presented in this paper. An analytical solution to the temperature transients within two tissue layers is obtained using the Laplace integral transform method. Heat transfer behaviors inside the tissues before evaporation are investigated. The critical time required to vaporize the surface tissue and the thermal damage depth are numerically predicted. It was shown that there is evident difference in temperature predictions between the uniform model and the heterogeneous one. This study is useful to laser surgery,such as ophthalmology,dermatology and neurosurgery which request high accuracy on temperature prediction and heat deposition.

参考文献

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LI Hejie, ZHANG Xuexue, LIU Jing. Heat Transfer Analysis on Laser-tissue Thermal Interaction Using Heterogeneous Model[J]. Chinese Journal of Lasers B, 2002, 11(3): 233. LI Hejie, ZHANG Xuexue, LIU Jing. Heat Transfer Analysis on Laser-tissue Thermal Interaction Using Heterogeneous Model[J]. 中国激光(英文版), 2002, 11(3): 233.

Heat Transfer Analysis on Laser-tissue Thermal Interaction Using Heterogeneous Model

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