A cryogenic surgical instrument and method of manufacturing the same are described. The instrument is a cryosurgical probe having concentrically arranged cryogenic fluid supply and return tubes extending through a concentric handle portion into a closed end probe shaft wherein the handle portion and...http://www.google.co.uk/patents/US5573532?utm_source=gb-gplus-sharePatent US5573532 - Cryogenic surgical instrument and method of manufacturing the same
