The present invention concerns a machinery with closed cycle for interventions of the cryogenic type comprising a section of virtual simulation which foresees: A video device (2) for visualizing at least a tridimensional image (Im) of an organ or part of the body to be undergone to the intervention； A processor (2, 3, 4) programmed for allowing the simulation of the insertion of one or more cold probes (20, 30) and one or more warm probes in the image and for calculating a resulting advancement of the cold front (50) depending on the position of said probes. Said machinery is equipped with highly independent energetic autonomy and an efficient system of fast connections for the insertion of different cryogenic devices (external and internal cryodes, probe/s and cryoballoon).
