END FITTING FOR CRYOSURGICAL INSTRUMENTS Russian patent published in 1994 - IPC

FIELD: medicine, particularly, for locally freezing biological tissues. SUBSTANCE: cryosurgical instrument end fitting includes hollow metal casing which houses coolant inlet and outlet pipes separated from one another by heat-exchanger. Casing carries detachable applicator which is metal chamber having opening at distal end. Secured to internal surface of metal chamber is capillary-porous metal coating in the form of concave bed deflected inwards. Applicator chamber has pipe to evacuate gas. EFFECT: intimate mechanical and thermal contact between end fitting and tissue. 1 dwg