Cutting Performance of Ultrasonic-assisted Electrosurgical Electrode

doi:10.3901/JME.2021.01.179

Abstract

Abstract: The electrosurgical electrode has been widely used in minimally invasive surgery due to its excellent cutting efficiency and hemostatic properties. However, tissue adhesion to the electrode and carbonization of the wound surface are not conducive to postoperative healing. Inspiration from the excellent anti-adhesion performance of ultrasonic vibration gives new insights into the design of a novel electrosurgical electrode to minimize tissue adhesion to the electrode. Firstly, by analyzing the mechanism of the influence of the ultrasonic vibration on the electric field and the mechanism of tissue removal under multi-energy fields, it was found that the mechanical force of ultrasonic vibration will accelerate tissue removal. Finally, the energy-based cutting experiments reveal that the cutting performance of ultrasonic vibration assisted electrosurgical electrode is significantly improved, for example tissue adhesion mass decline by 80%, 50% for thermal damage area reducing. The ultrasonic vibration assisted electrosurgical electrode satisfied the surgical technical requirements of energy-based minimally invasive devices.

Key words: electrosurgical electrode, ultrasonic vibration assisted, anti-adhesion, thermal injury

CLC Number:

TH77

YAO Guang, WU Wenshuai, GENG Daxi, ZHANG Xiangyu, ZHANG Deyuan. Cutting Performance of Ultrasonic-assisted Electrosurgical Electrode[J]. Journal of Mechanical Engineering, 2021, 57(1): 179-185.

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