Cryo-therapy system for small areal freezing of surfaces esp. for skin alterations - has cold probe and heat exchanger which are connected heat-conducting with each other by Peltier elements having heat contact surfaces

摘要

At least one Peltier element (36;46) with its associated heat contact surface (38) is respectively fixed heat-conducting at opposite lying main surfaces (34) of the heat exchanger (14). The cold probe (12) is arranged axially aligned with the heat exchanger (14). Another pair of Peltier elements (46) with associated heat contact surface (48), is respectively arranged heat-conducting at opposite lying main surfaces (50) of the cold probe (12). The Peltier elements (46) of the cold probe with their second heat contact surfaces (44) distant from the first heat contact surfaces (48), are connected heat-conducting with the second heat contact surfaces (40) of the Peltier element (36) of the heat exchanger, distant from the first heat contact surfaces (38). ADVANTAGE - System has comparatively small vol. It is easy to manipulate and has relatively high thermal efficiency.