Influence trend of temperature distribution in skin tissue generated by different exposure dose pulse laser

Ning Shan; Zhijing Wang; Xia Liu

doi:10.1117/12.2070696

18 November 2014 Influence trend of temperature distribution in skin tissue generated by different exposure dose pulse laser

Ning Shan, Zhijing Wang, Xia Liu

Author Affiliations +

Proceedings Volume 9266, High-Power Lasers and Applications VII; 92661A (2014) https://doi.org/10.1117/12.2070696
Event: SPIE/COS Photonics Asia, 2014, Beijing, China

Abstract

Laser is widely applied in military and medicine fields because of its excellent capability. In order to effectively defend excess damage by laser, the thermal processing theory of skin tissue generated by laser should be carried out. The heating rate and thermal damage area should be studied. The mathematics model of bio-tissue heat transfer that is irradiated by laser is analyzed. And boundary conditions of bio-tissue are discussed. Three layer FEM grid model of bio-tissue is established. The temperature rising inducing by pulse laser in the tissue is modeled numerically by adopting ANSYS software. The changing trend of temperature in the tissue is imitated and studied under the conditions of different exposure dose pulse laser. The results show that temperature rising in the tissue depends on the parameters of pulse laser largely. In the same conditions, the pulse width of laser is smaller and its instant power is higher. And temperature rising effect in the tissue is very clear. On the contrary, temperature rising effect in the tissue is lower. The cooling time inducing by temperature rising effect in the tissue is longer along with pulse separation of laser is bigger. And the temperature difference is bigger in the pulse period.

Citation Download Citation

Ning Shan, Zhijing Wang, and Xia Liu "Influence trend of temperature distribution in skin tissue generated by different exposure dose pulse laser", Proc. SPIE 9266, High-Power Lasers and Applications VII, 92661A (18 November 2014); https://doi.org/10.1117/12.2070696

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