Development of perspective cryogenic surgical apparatus Original Research Article

An innovatory approach is used to develop a new generation of cryogenic surgical apparatus (CSA). The originality is to use a subcooled two-phase jet of liquid nitrogen which can quickly and deeply freeze biological tissues. The new development promises several methodical possibilities in cryogenic surgery. A general description of the underlying deep-freezing method is given and tentative test results for the first version of such apparatus are reported.