FIELD: medicine.
SUBSTANCE: invention relates to medical equipment, namely to surgical apparatuses for destruction of pathologic tissues by method of deep freezing by means of liquid nitrogen. Cryoapplicator contains case with evaporation chamber, tubes for supply of liquid nitrogen to it and return of vapour and contact plate with radially located vertical ribs. Evaporation chamber is divided into two parts with additional porous gas-permeable wall, which is in tight contact with case, with monolayer of ball-shaped powder being baked on all internal surfaces of contact plate. From outside case is protected with replaceable heat-insulating screen.
EFFECT: application of invention makes it possible to increase efficiency of refrigerant application.
1 dwg
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Authors
Dates
2013-01-20—Published
2007-12-20—Filed