A method and an apparatus for non-access stratum message processing during handover in an evolved network are provided. The cryoablation tip may be implemented with a cooling chamber through which a controllably injected coolant circulates to lower the tip temperature, and having an RF electrode at its distal end. This movable unit controls a state of an electrical connection between relay electrodes. A global interface may access the partition interfaces at a second frequency, which is equal to the first frequency times the number of partition interfaces. The method further comprises using an air flow having an ambient temperature, or being heated before getting into the enclosure, to carry away the evaporated medium from the enclosure.