CAJ | 학술논문

本文基于生物组织热传导方程，分析了连续平顶型激光和连续高斯型激光辐照皮肤组织的热传递规律，建立了更为接近细胞尺寸的三层皮肤组织模型，采用有限元方法对两种不同形状激光作用于皮肤组织时产生的温升情况进行了数值模拟，仿真研究了不同作用时间、不同表面距离和不同深度的皮肤组织温度场分布。结果表明，相同条件下，由连续平顶型激光在组织内部产生的最高温度明显小于高斯型的，主要原因是平顶型激光能量分散，而高斯型能量相对集中。连续高斯型激光辐照组织后产生的温升区域面积和穿透深度均较大，撤去激光后达到初始温度的冷却时间也相应较长。
본문기우생물조직열전도방정，분석료련속평정형격광화련속고사형격광복조피부조직적열전체규률，건립료경위접근세포척촌적삼층피부조직모형，채용유한원방법대량충불동형상격광작용우피부조직시산생적온승정황진행료수치모의，방진연구료불동작용시간、불동표면거리화불동심도적피부조직온도장분포。결과표명，상동조건하，유련속평정형격광재조직내부산생적최고온도명현소우고사형적，주요원인시평정형격광능량분산，이고사형능량상대집중。련속고사형격광복조조직후산생적온승구역면적화천투심도균교대，철거격광후체도초시온도적냉각시간야상응교장。
The rule of heat transfer that is irradiated by plane peak continuum laser and gauss continuum laser are analyzed based on thermal conduction equations of biological tissue. The three layer skin tissue model that is more closely to cell size is built. The transient temperature distribution in skin tissue generated by two different shape la-sers is numerical simulated using finite element method. The temperature field of skin tissue in the circumstances dif-ferent action time and exterior distance and depth is studied respectively. The results show that the highest tempera-ture in the skin tissue generated by plane peak continuum laser is less than gauss continuum laser’s on the same con-ditions. The reason is which energy of plane peak continuum laser is decentralizing and energy of plane peak continu-um laser is centralizing. The area and penetrating depth of temperature rise generated by gauss continuum laser is big-ger. The cooling time of achieving elementary temperature is longer corresponding when the laser is removed.