The paper deals with the issues of modeling the processes of laser radiation absorption in contact with a biological object, which leads to a significant increase in temperature in the interaction zone. For organic tissues, when the temperature rises above a certain value, their damage begins, and then the processes of destruction are observed. With an increase in the speed of movement of the laser beam on the surface, the width of the incision and the level of injury decrease, as the time of interaction of the radiation with the tissue decreases. In this paper, we consider various models for performing calculations: using complex ratios taking into account the thickness or using expressions for an object of semi-infinite thickness. The regularities of the growth of the average temperature and the process of establishing the thermal balance on the surface of the body, depending on the parameters of the laser radiation pulses, are also investigated.

Keywords: computer simulation, medical laser, laser incision, biological tissues, temperature field, level of injury, pulse packet, speed of movement