Experimental and theoretical studies of the freezing processing in cryosurgery / 中国医学物理学杂志

ABSTRACT

The thermal characters such as temperature field, temperature grads and cooling power are very important for sur geons to estimate and improve curative effect. The freezing experiment around a 3.4mm cryoprobe was conducted and a multi dimensional numerical model based on enthalpy method and solved by finite element scheme for the freezing process of simu lative biological tissues during cryosurgery is presented. The results of the numerical solution were validated against experimen taal data .The utility of the numerical solution for the design and application of c ryodevices is demonstrated.