NASAL CANNULA

摘要

A gas delivery conduit adapted for fluidly connecting to a respiratory gases delivery system in a high flow therapy system. In one embodiment, a nasal cannula includes a base portion defining a first therapeutic gas passageway, a nozzle disposed adjacent said base portion and defining a second therapeutic gas passageway, the first therapeutic gas passageway being in gaseous communication with the second therapeutic gas passageway and a conduit configured to facilitate sensing that has an inlet side that is independent of and axially spaced apart from an outlet side of the nozzle. The conduit inlet side can extend beyond the nozzle outlet side of the nasal cannula. Additionally, the nasal cannula has a feature that is adapted to prevent one of the conduit and the nozzle from creating a seal with a user's nare and a feature that is adapted to prevent one of the conduit and the nozzle from creating a seal with a user's nare.

主权项

1. A system for delivering therapeutic gas to a user, said system comprising:
a nasal cannula that comprises:
a base portion defining a first therapeutic gas passageway,a nozzle disposed adjacent said base portion and defining a second therapeutic gas passageway, said first therapeutic gas passageway being in gaseous communication with said second therapeutic gas passageway, andat least one conduit configured to facilitate measuring properties of gas within an upper airway of the user, wherein the conduit has an inlet side that is independent of and axially spaced apart from an outlet side on the nozzle; and a therapeutic gas delivery control system that is adapted to receive data from said at least one conduit, and to adjust a flow of respiratory gas to said nasal cannula based, at least in part, on said data.