NASAL CANNULA ASSEMBLY WITH INHALATION VALVES COMMUNICATING WITH A DEFORMABLE RESERVOIR

摘要

The invention concerns a nasal cannula assembly (10) adapted to deliver gases to a patient comprising a first compartment (1) and a second compartment (2) separated by a separation wall (6); a pair of nasal prongs (5) in fluid communication with the first compartment (1); the first compartment (1) comprising a first inlet (11) for introducing a first gas into said first compartment (1); the second compartment (2) comprising a second inlet (2) for introducing a second gas into said second compartment (2); and the separation wall (6) comprising at least one valve element (3) for controlling the passage of gas from the second compartment (2) to the first compartment (1). The invention concerns also a breathing assistance apparatus comprising a source of NO gas, and said nasal cannula assembly (10) in fluid communication with said source of NO gas.

主权项

1. A nasal cannula assembly (10) adapted to deliver gases to a patient, the nasal cannula assembly (10) comprising:
a) a first compartment (1) and a second compartment (2) separated by a separation wall (6), b) a pair of nasal prongs (5) in fluid communication with the first compartment (1), c) the first compartment (1) comprising a first inlet (11) configured to conduct a first gas into said first compartment (1), d) the second compartment (2) comprising a second inlet (12) configured to conduct a second gas into said second compartment (2), and e) the separation wall (6) comprising at least one valve element (3) configured to
permit a passage of gas from the second compartment (2) to the first compartment (1) andprevent or limit a passage of gas from the first compartment (1) to the second compartment (2).