Effect of Temperature During Laser Welding of Tissue Between Bioheat Model and Porous Media Model by Varying 3 Pattern of Laser Movement: Single-Line, Line and Zigzag
Abstract
This research investigates the development of a pulsed laser wound welding model using numerical calculations based on the finite element method. The study examines three movement patterns: Line, Zigzag, and Single-line. The study compares the Bioheat and Porous media models to examine the thermal effects during laser tissue welding and assess the accuracy of both models. The results indicate that, when changing the movement pattern, the Single-line movement generates the highest welding temperature, followed by the Line pattern, with the Zigzag pattern resulting in the lowest temperature. However, the temperature distribution in the Zigzag pattern is the most variable, followed by the Line and Single-line patterns, respectively. When comparing the accuracy of the Bioheat and Porous media models with experimental results from animal tissue samples that are comparable to human skin, the porous media model demonstrated closer alignment with the actual experimental data than the Bioheat model. Nonetheless, while the animal tissue samples are similar to human tissue, they lack the blood circulation present in living human tissue. In the future, comparing the results obtained from human tissue studies will enhance the accuracy of the model. Furthermore, investigating how variations in pulse waveform affect the temperature during laser tissue welding should be a focus of future research to improve model accuracy and its applicability for real treatment planning.