Local Thermal Effect of Power-on Setting on Monopolar Coagulation: a Three-dimensional Electrothermal Coupled Finite Element Study

Overview

Journal Med Biol Eng Comput

Publisher Springer

Specialties Biomedical Engineering
Medical Informatics

Date 2022 Oct 13

PMID 36229717

Authors

Yung-Chuan Chen

Yuan-Kun Tu

Yi-Jung Tsai

Yueh-Pin Tsai

Chih-Kun Hsiao

Affiliations

Soon will be listed here.

Abstract

A three-dimensional (3-D) electrothermal coupled finite element (FE) model was used to simulate and analyze the effects of the electrosurgical power-on setting on the temperature distribution and thermal damage in biological tissue during coagulation. The discussed parameters include the power-on-off durations, contact distance between the electrosurgical blade and tissue surface, and inclination angle of the blade during cutting. The results indicate that under the condition of a constant input electrical energy, the maximal temperature decreased when the power-on time was shortened and the power-off (pause) duration was increased. The two contact distances between the blade and tissue (0 and 0.25 mm) did not show a significant temperature difference; however, the tissue temperature increased with increasing blade inclination angle. We concluded that using a normal cut angle and set at a multiple shorter-time power-on with intermittent power-off operation procedure can reduce the risk of thermal damage during monopolar electrosurgery.

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