Abstract: Cryosurgery is performed with cryosurgical probe tips either contacting the tissue or by tips which deliver refrigerant onto the tissue. A dual action probe tip can be used to perform either operation separately or may be used for application of both methods. Various method steps define the procedures for use of the probe tips.
Abstract: A method and system for monitoring the progress of an ice ball produced by a cryoprobe during a surgical procedure measures the complex impedance of the ice ball. An electrical model of the zones in the ice ball is employed to calculate the size of the zones using the complex impedance measurements. The ice ball zones are displayed to assist the surgeon in controlling the cryoprocedure.