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对激光加热时冷冻生物组织内的解冻过程进行了数值模拟。结果发现 ,虽然激光对生物组织的加热具有容积加热的特点 ,但以激光为热源时 ,生物组织内的解冻过程仍然呈现出与普通热源加热时的解冻过程相似的规律。组织吸收系数对解冻过程有较大影响 ,吸收系数越高 ,组织解冻过程越趋于普通热源加热时的解冻过程。
The thawing process in the frozen biological tissue during laser heating was numerically simulated. The results showed that although the laser has the characteristics of volumetric heating for the heating of biological tissue, the thawing process in the biological tissue still shows a similar rule to the thawing process when the heat source is heated by laser. Tissue absorption coefficient has a greater impact on the thawing process, the higher the absorption coefficient, the more the tissue thawing process tends to the thawing process when the ordinary heat source is heated.