美容双极射频电极直径及间距对皮下温度场的影响  

Effect of diameter and spacing of beauty bipolar RF electrode on subcutaneous temperature field

作　　者：黄甜 何冰冰 郭振宇 张梅 马骁 张榆锋[1] HUANG Tian;HE Bingbing;GUO Zhenyu;ZHANG Mei;MA Xiao;ZHANG Yufeng(School of Information,Yunnan University,Kunming 650091,China;Yunnan Botanee Bio-technology Group Co.LTD.,Kunming 650106)

机构地区：[1]云南大学信息学院,昆明650091 [2]云南贝泰妮生物科技集团股份有限公司,昆明650106

出　　处：《生物医学工程研究》2024年第5期377-384,共8页Journal Of Biomedical Engineering Research

基　　金：国家自然科学基金项目(62261057);云南省2022年博士后科研基金研究项目。

摘　　要：为探究电极直径及电极间距对皮下温度场的影响,本研究基于仿真分析和离体猪皮实验,研究了不同电极直径及间距对皮下温度场的影响。在COMSOL Multiphysics的仿真研究中,首先建立了双极射频有限元皮肤模型,然后通过改变电极直径和电极间距,仿真皮下组织加热后的温度分布。实验结果显示,当电极尺寸逐渐增大时,最高温靶点位置基本不变,但加热区域扩大,温升显著;当电极间距增加时,最高温靶点位置逐渐加深,加热区域扩大,但温升速度降低。其中,在电极直径为4~6 mm,间距为2.37~4.25 mm,加热时间约为20 s时,靶点深度约为电极间距的一半,41~43℃温度范围面积最大。本研究结果为家用双极射频美容仪的开发和应用提供了技术支撑。In order to explore the effect of electrode diameter and electrode spacing on the subcutaneous temperature field,we studied the effect of different electrode diameters and spacing on the subcutaneous temperature field based on simulation analysis and in vitro pig skin experiment.In the simulation study of COMSOL Multiphysics,the bipolar RF finite element skin model was first established,and then the temperature distribution of the subcutaneous tissue after heating was simulated by changing the electrode diameter and electrode spacing.The results showed that when the electrode size gradually increased,the position of the highest temperature target was basically unchanged,but the heating area expanded and the temperature rise was significant.When the electrode spacing increased,the position of the highest temperature target gradually deepened,and the heating area expanded,but the temperature rise rate decreased.In particular,when the electrode diameter was 4~6 mm,the spacing was 2.37~4.25 mm,the heating time was about the 20 s,the target depth was about half of the electrode spacing,and the temperature range area of 41~43°C was the largest.The research results provide technical value for the development and application of household bipolar RF beauty devices.

关 键 词：医学美容 双电极射频 电极尺寸 极间距离 有限元仿真 皮下温度分布 

分 类 号：R318[医药卫生—生物医学工程]