Heating and cutting of biological tissue by highly absorbed laser beams: theoretical model and experiments

A. M. Sagi; Avraham Shitzer; Ariella Avidor; Solange Akselrod; Abraham Katzir

doi:10.1117/12.17641

1 June 1990 Heating and cutting of biological tissue by highly absorbed laser beams: theoretical model and experiments

A. M. Sagi, Avraham Shitzer, Ariella Avidor, Solange Akselrod, Abraham Katzir

Proceedings Volume 1202, Laser-Tissue Interaction; (1990) https://doi.org/10.1117/12.17641
Event: OE/LASE '90, 1990, Los Angeles, CA, United States

Abstract

A model for calculating temperature fields and ablation processes in tissue was developed. The model assumes three different stages experienced by the tissue during a complete ablation process. The consecutive steps are: heating, boiling and ablation. The model has been examined by calculations and experimental measurements of temperature fields in various kinds of biological tissue, exposed to ablative or non-ablative laser beams in the range of low to moderate power densities. The model was able to determine temperature fields and thermal damage in tissue, as well as ablation parameters. This makes it a powerful tool for optimizing laser irradiation parameters for a variety of applications.

Citation Download Citation

A. M. Sagi, Avraham Shitzer, Ariella Avidor, Solange Akselrod, and Abraham Katzir "Heating and cutting of biological tissue by highly absorbed laser beams: theoretical model and experiments", Proc. SPIE 1202, Laser-Tissue Interaction, (1 June 1990); https://doi.org/10.1117/12.17641

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