A closed end surgical cryoprobe instrument may have a probe shaft diameter of 3 millimeters or less and can achieve and maintain freezing zone temperatures close to that of the liquid cryogenic refrigerant. Using sub-cooled liquid nitrogen at approximately -208.degree. C. freezing zone temperatures as...http://www.google.fr/patents/US5520682?utm_source=gb-gplus-shareBrevet US5520682 - Cryosurgical instrument with vent means and method using same
Cryosurgical instrument with vent means and method using same
