Abstract: The present invention pertains to an entry point location system. The system features a sensor device, which includes a plurality of spaced apart sensors for external reversible attachment to a patient at a target site. The sensors are configured to transmit sensed data. The system features a computing device. The sensors are in communication with the computing device and the computing device is configured to receive the data from the sensors and use the data to calculate the location of an entry point. The system may include a guiding tool for guiding a user to access an entry point. In addition, the present invention is of a method of determine the location of an entry point.

Abstract: Apparatus for cryoablation comprises a super-cooled liquid nitrogen streaming mechanism and an adjustable area-targeting cryoablation tip for use at a cryoablation site. The use of super-cooled liquid nitrogen increases the power and, thus, the cryoablation lesion depth.