High flow therapy device utilizing a non-sealing respiratory interface and related methods

A high flow therapy system for delivering pressurized, heated and humidified respiratory gas to an airway of a patient, the system comprising:

• a respiratory gas flow pathway for delivering the pressurized respiratory gas to the airway of the patient by way of a non-sealing respiratory interface;
• wherein flow rate of the pressurized respiratory gas is controlled by a microprocessor;
• a mixing area for mixing oxygen and air in the respiratory gas flow pathway;
• a humidification area for humidifying respiratory gas in the respiratory gas flow pathway;
• a heated delivery conduit for minimizing condensation of humidified respiratory gas;
• and,
• a pressure pathway for monitoring pressure of the airway of the patient and communicating the monitored pressure to the microprocessor;
• wherein the system is configured to determine the respiratory phase of the patient and,
• wherein the system is adapted to pass exhaled gas of the patient by one of through and about the non-sealing respiratory interface to ambient atmosphere without passing the exhaled gas through a remainder of the system.

A high flow therapy system for delivering pressurized, heated and humidified respiratory gas to an airway of a patient, the system comprising:

• a respiratory gas flow pathway for delivering the pressurized respiratory gas to the airway of the patient by way of a non-sealing respiratory interface;
• wherein flow rate of the pressurized respiratory gas is controlled by a microprocessor located within a housing;
• a mixing area located within the housing for mixing oxygen and air in the respiratory gas flow pathway;
• a humidification area located outside of the housing for humidifying respiratory gas in the respiratory gas flow pathway;
• a heating element coupled with the humidification area;
• and
• a heated delivery conduit for minimizing condensation of humidified respiratory gas, wherein the system is adapted to pass exhaled gas of the patient by one of through and about the non-sealing respiratory interface to ambient atmosphere without passing the exhaled gas through a remainder of the system.