Research on Electrical Cutting Injury of Biological Tissue
WU Fei1,2, TANG Yuanliang1, TAN Zhongwei1, HUANG Dequn1, GU Heng1, CHEN Jun3, ZHANG Xueying4, LI Guixiang1
1. Guangdong Key Laboratory of Medical Electronic Instruments and Polymer Materials, National Engineering Research Center for
Medical and Healthcare Devices, Institute of Biological and Medical Engineering, Guangdong Academy of Sciences, Guangzhou
Guangdong 510316, China; 2. Guangdong Key Laboratory of Minimally Invasive Surgical Instrument Design and Precision
Manufacturing, School of Mechanical and Electrical Engineering, Guangdong University of Technology, Guangzhou Guangdong
510006, China; 3. Guangdong Institute of Medical Instruments, Guangzhou Guangdong 510500, China; 4. Guangdong Provincial
Key Laboratory of Advanced Welding Technology, China-Ukraine Institute of Welding, Guangdong Academy of Sciences,
Guangzhou Guangdong 510650, China
Abstract：Objective To investigate the effects of different cutting parameters of electrosurgical, electrode structure and water content
of biological tissue on mechanical and biological injury. Methods An experimental device was designed to study the mechanical and
biological damage of fresh pork loin in vitro under different electric cutting parameters (electric cutting power, cutting depth, cutting
angle), structural parameters of the surgical electrode, and water content of biological tissue. Results The experimental results
showed that the eschar adhesion increased with the addition of electrical cutting power, cutting depth and angle, and contact edge
area. The augment of electric cutting power and tissue water content could make heat concentration, and aggravate tissue thermal
damage. Conclusion The paper reveals the influence rules of operating parameters, tool parameters, and material parameters of
electrosurgical on tissue cutting injury, which can provide theoretical and technical reference for the development of high-frequency
electrosurgical equipment, surgical electrodes, and the better use of surgical electrodes by doctors.
