CPC A61F 7/0085 (2013.01) [A61F 7/0053 (2013.01); A61F 2007/006 (2013.01); A61F 2007/0064 (2013.01)] | 7 Claims |
1. A method of preparing cryogenic air for use in cryotherapy procedures, using liquid nitrogen and gaseous oxygen, comprising:
feeding liquid nitrogen (1) from a cryogenic nitrogen tank (2) via a cryogenic duct (3) to a reactor (4),
feeding simultaneously a gas (7) containing oxygen in a concentration from 20% to 100% from an oxygen source (5) to the reactor (4), through a gas duct (6),
evaporating in the reactor (4) the liquid nitrogen (1) using the gas (7),
mixing both these components together in the reactor (4),
forming a cold breathable mixture (8),
cooling the mixture (8) to a set temperature of minus 80° C. to minus 160° C.,
feeding the mixture (8) through a cold duct (9) terminated with an outlet (10) to a cryochamber (11), wherein
the method eliminates nitrogen losses during the cryotherapy procedure, and wherein the cryochamber has an oxygen concentration control.
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