CRYOPROBE FOR LOW PRESSURE SYSTEMS

摘要

A cryoprobe for use in cryosurgery and other applications includes a rigid outer tube, an inner coolant inlet tube, a short rigid penetrating segment extending distally from the distal end of the outer tube and a helical baffle having a heating element disposed about the outer surface of the inlet tube. The baffle is adapted to produce turbulent fluid flow improving heat transfer and is able to warm target tissue during rapid freezing and thawing cycles.