Abstract: Disclosed herein is a patient interface for wound treatment and/or management, comprising: an interface body configurable to substantially or at least partially surround a wound, the interface body comprising a gas inlet and defining a first gas flow path having a first flow resistance, and a second gas flow path having a second flow resistance. The first gas flow path is arranged in fluid communication with the gas inlet and the second gas flow path. The interface body comprises or is configurable to provide a gas outlet at or adjacent to the wound site.

Abstract: Disclosed is a port connector for respiratory gases tubes. The port connector having a port extending from the port connector, the port providing for a passageway into a lumen of the port connector. The port having a connection mechanism, and a port sealing surface. The port connector may further comprise a connector elbow having an accessory end configured to connect with an accessory, a connector elbow sealing surface, and a collar located at a port end of the connector elbow. The collar may be configured to engage with the connection mechanism of the port connector to urge a connector elbow sealing surface into engagement with a port sealing surface.