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

A connector for use with a therapy device, the connector comprising:

• a conduit fitting including a gas lumen configured to direct gas from a therapy device towards a patient interface and a pressure lumen configured to convey pressure from a patient interface towards a pressure port of the therapy device;
• and
• a cannula fitting configured for releasable engagement with the conduit fitting, the cannula fitting including at least one gas lumen and at least one pressure lumen, the at least one gas lumen being operatively engageable with the gas lumen of the conduit fitting and being configured to direct gas from the therapy device towards the patient interface, the at least one pressure lumen being operatively engageable with the pressure lumen of the conduit fitting and being configured to convey pressure from the patient interface towards the pressure port of the therapy device,
• wherein the connector, further includes at least one spoke connecting a wall of the conduit fitting and the pressure lumen of the conduit fitting, the at least one spoke configured to allow axial movement of the pressure lumen of the conduit fitting relative to the wall of the conduit fitting, thereby allowing a pressure seal to be created between the pressure lumen of the conduit fitting and the at least one pressure lumen of the cannula fitting prior to a gas seal being created between the gas lumen of the conduit fitting and the at least one gas lumen of the cannula fitting.

A connector for use with a therapy device, the connector comprising:

• a conduit fitting including a gas lumen configured to direct gas from a therapy device towards a patient interface and a pressure lumen configured to convey pressure from a patient interface towards a pressure port of the therapy device;
• and
• a cannula fitting configured for releasable engagement with the conduit fitting, the cannula fitting including at least one gas lumen and at least one pressure lumen, the at least one gas lumen being operatively engageable with the gas lumen of the conduit fitting and being configured to direct gas from the therapy device towards the patient interface, the at least one pressure lumen being operatively engageable with the pressure lumen of the conduit fitting and being configured to convey pressure from the patient interface towards the pressure port of the therapy device;
• and
• wherein;
• (a) the pressure lumen of the conduit fitting is disposed inside the gas lumen of the conduit fitting;
• or
• (b) the at least one pressure lumen of the cannula fitting is disposed inside the at least one gas lumen of the cannula fitting.