Thermal management in a biological tissue in order to destroy tissue under local heating process

摘要

In this study, the thermal management in a biological tissue in order to destroy tissue under local heating process is carried out. A trocar is used as a tool to destroy tissue in the liver that is connected to a power supply. The trocar is made up of different tines, also called electrodes. In this study, five different types of tines are investigated, which include single-tine, two-tine, three-tine, four-tine, and five-tine. The performance of each trocar on the degradation process is studied from a thermal point of view. The electrical potential and temperature distribution within the tissue are investigated according to different trocars. The results show that the use of five-tine has a better performance on tissue destruction. In contrast, the use of a single-tine can be used by the physician to better control the heat and glands small enough in the tissue. Besides, the heat and the destruction can be controlled by the operating voltage of the power supply. The temperature distribution inside the tissue is quasi-steady from the seventh minute onwards and no significant change is observed in the maximum temperature inside the tissue. The results show that the increase in temperature from 16 V to 18 V is equal to 11.76%.