Cryosauna

Abstract

A cryosauna for recreational procedures comprises a source of liquid nitrogen, a unit to prepare an operating mixture, and a patient box. The unit has thermo insulated evaporator and mixer in fluid communication with each other. The evaporator is connected via a valve to the source of liquid nitrogen, the mixer through a fan is open to ambient air and connected with the patient box. The patient box is made roofless and comprises a floor, walls, and an adjustable stage to accommodate the patient. The cryosauna also comprises a recycle stream bypass channel connecting the patient box and evaporator and is provided with a three-way discharge valve, a first and a second discharge ducts connecting the patient box with inputs of the discharge valve and a duct fan installed at an output of the discharge valve. A method of operating the cryosauna during a session is also disclosed.

1 . A cryosauna for recreational procedures, the cryosauna comprising:
 a cooling agent source,   a gas generator, and   a patient box,   the gas generator comprising an evaporator and a mixer,   the evaporator and mixer being in fluid communication with each other,   the evaporator being connected to the cooling agent source,   the mixer being in fluid communication with ambient air and with the patient box,   whereby an operating mixture of the cooling agent and air can be prepared and supplied to the patient box.   
     
     
         2 . The cryosauna according to  claim 1 , wherein the connection between the evaporator and the cooling agent source is made via a controllable valve to thereby dose the supply of the cooling agent to the evaporator. 
     
     
         3 . The cryosauna according to  claim 1 , wherein the patient box is made roofless and comprises a floor, walls, and a stage to accommodate the patient, the height of the stage relative to the floor being adjustable. 
     
     
         4 . The cryosauna according to  claim 1 , wherein the cooling agent is liquid nitrogen. 
     
     
         5 . The cryosauna according to  claim 1 , wherein the cooling agent is liquid CO 2 . 
     
     
         6 . The cryosauna according to  claim 1 , wherein the cooling agent is liquid air. 
     
     
         7 . The cryosauna according to  claim 1 , wherein the evaporator and mixer are made thermo insulated. 
     
     
         8 . The cryosauna according to  claim 1 , wherein the mixer is made of a non-corrodible material. 
     
     
         9 . The cryosauna according to  claim 1 , further comprising a fan facilitating the mixing of the cooling agent and air and the supply thereof to the patient box. 
     
     
         10 . The cryosauna according to  claim 1 , further comprising a recycle stream bypass channel connecting the patient box and evaporator to thereby reuse the operating mixture. 
     
     
         11 . The cryosauna according to  claim 1 , further comprising a discharge valve, at least one discharge duct connecting the patient box with an input of the discharge valve and a duct fan at an output of the discharge valve. 
     
     
         12 . The cryosauna according to  claim 11 , further comprising a second discharge duct connecting the patient box with an input of the discharge valve, the discharge valve including a three-way valve. 
     
     
         13 . A cryosauna for recreational procedures, the cryosauna comprising:
 a source of liquid nitrogen,   a unit to prepare an operating mixture, and   a patient box,   the unit comprising thermo insulated evaporator and mixer in fluid communication with each other,   the evaporator being controllably connected to the source of liquid nitrogen,   the mixer being in fluid communication with ambient air and with the patient box,   whereby the operating mixture of liquid nitrogen and air can be prepared and supplied to the patient box.   
     
     
         14 . The cryosauna according to  claim 13 , wherein the patient box is made roofless and comprises a floor, walls, and a stage to accommodate the patient, the height of the stage relative to the floor being adjustable. 
     
     
         15 . The cryosauna according to  claim 13 , wherein the mixer is made of a non-corrodible material. 
     
     
         16 . The cryosauna according to  claim 13 , further comprising a recycle stream bypass channel connecting the patient box and evaporator to thereby reuse the operating mixture. 
     
     
         17 . The cryosauna according to  claim 13 , further comprising a three-way discharge valve, a first and a second discharge ducts connecting the patient box with inputs of the discharge valve and a duct fan installed at an output of the discharge valve. 
     
     
         18 . A method of operating a cryosauna during a session, the method comprising the steps of:
 providing a source of a cooling agent,   directing the cooling agent to an evaporator,   evaporating the cooling agent in the evaporator,   mixing the evaporated cooling agent with air, and   directing the mixture of the evaporated cooling agent and air into a patient box of the cryosauna.   
     
     
         19 . The method of operating a cryosauna according to  claim 18 , further comprising drawing an excessive mixture of the evaporated cooling agent and air out of the patient box and directing it back to the evaporator for reuse. 
     
     
         20 . The method of operating a cryosauna according to  claim 18 , further comprising drawing the mixture of the evaporated cooling agent and air out of the patient box after the session is over and removing the mixture from the cryosauna.