Patent ID: 11883320
Assignee: METRUM CRYOFLEX SP. Z O.O., SPOLKA KOMANDYTOWA
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
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.