METHOD AND EQUIPMENT FOR APPLYING INHALATION ANESTHESIA Russian patent published in 2002 - IPC

FIELD: medicine; medical engineering. SUBSTANCE: method involves preparing anesthetic agent on the xenon base or anesthetic agent on the xenon base with fluorine-containing compounds. Anesthesia is carried out in partially reversible mode with gas mixtures being disinfected at in- and exhalation phase. CO₂ and H₂O are absorbed form the exhaled mixture with its being supplied back at the inhalation stage. Excessive portions are removed and the exhaled mixture is collected after anesthesia. Xenon recovery is carried out in removing excesses and after anesthesia by applying adsorption-desorption method, separating fluorine-containing and organic compounds on getters at their interaction temperatures under analytical xenon control with weighing and chromatography methods being applied. Recovered xenon is supplied to the stage of anesthetic agent preparation. Equipment has narcosis apparatus, removable cartridge filled with adsorbent agent being a xenon recovery complex ingredient and cryopump. The narcosis apparatus has unit for manufacturing anesthetic agent having compressed gas sources with flowmeter units and liquid fluorine-containing compounds evaporator unit, respirator unit having anesthetic composition analyzer, bactericide filters mounted on in- and exhalation lines, CO₂ and H₂O absorber units, exhaled gas mixture recovery line and inhalation line having two-way cock and protection valve. The xenon recovery complex has desorption vacuum pump, apparatus with getter filler, reservoir for collected recovered xenon and chromatograph device. Compressed xenon source, cartridge and reservoir are mounted on electronic scales. EFFECT: pure xenon production; excluded equipment disinfection means; multiple use of xenon with minimized losses. 3 cl, 1 dwg, 1 tbl