不锈钢电极电切性能及表面粘附行为研究  

Basic Law of Electrosurgical Cutting and Surface Adhesion Behavior of Stainless Steel Electrode

作　　者：肖明 胡树兵[1] XIAO Ming;HU Shubing(State Key Laboratory of Materials Processing and Die&Mould Technology,Huazhong University of Science&Technology,Wuhan,430074)

机构地区：[1]华中科技大学材料成形与模具技术国家重点实验室

出　　处：《中国医疗器械杂志》2019年第6期405-409,共5页Chinese Journal of Medical Instrumentation

基　　金：国家重点基础研究发展计划(973)(2014CB046704)

摘　　要：为了研究高频电刀电切性能和表面粘附行为,采用304不锈钢电极对离体新鲜猪里脊组织进行电切割试验,研究了切割速率对电极温度、切割功率对热损伤和粘附质量的影响以及电极表面组织粘附机理。结果表明,电极温度随着电切割功率和移动速率的增加而增加;切割过程中组织破碎形成微米级别颗粒后在电极表面不断积累形成粘附层;304不锈钢耐高温能力有限,电弧局部高温导致电极表面发生显微熔融,增大了粘附物与基体的结合面积;粘附物与电极边缘位置存在元素富集和扩散现象,使粘附物与电极之间形成化学结合,结合力急剧增大。In order to study the performance and surface adhesion behavior of high frequency electrosurgical unit,304 stainless steel electrode was used for electrical cutting on fresh pork fillet in vitro.The effect of cutting rate on electrode temperature and cutting power on thermal damage and adhesion quality,and the mechanism of tissues adhered on the electrode surface were studied.The results show that the electrode temperature increases with the increase of the cutting power and moving rate.During the cutting process,cells break up to form micron particles and then accumulate on the surface of electrodes to form adhesion layer.The low thermostability of 304 leads to slight melting,which enlarges the bonding area between the adhesive and the matrix.Elements diffusion and enrichment are found at the edge of the adhesives and the electrode,which contributes to higher bonding force.

关 键 词：高频电刀 304不锈钢 电切规律 表面粘附 

分 类 号：TH777[机械工程—仪器科学与技术]