Swivel device utilizing bearing clearance to allow carbon dioxide laden exhaust
AssigneeRespironics, Inc.
InventorsAndrew Serowski, John Raymond Pujol, Jeffrey Kenneth Anthony Fusaro, Timothy Gabriel Halloran
Life of this patent
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Abstract
A swivel exhaust conduit for rotatably connecting a patient mask to the delivery conduit of a positive pressure air supply. The swivel exhaust conduit design provides an exhaust port that utilizes the rotating bearing of the swivel conduit's rotating two-piece design for permitting and directing exhaust of CO2 laden air. A baffle chamber formed in the clearance of the two pieces provides an area where noise is reduced. As CO2 laden exhaust exits the swivel exhaust conduit, it is directed away from the patient mask and down the outside of the delivery conduit via a slit pattern on the swivel conduit.
Claims10
An exhaust assembly for use with a breathing gas delivery system including a delivery conduit and a patient interface, the exhaust assembly comprising:
- a first conduit adapted to be coupled to a patient interface;
- a second conduit adapted to be coupled to a delivery conduit, and wherein the first conduit and the second conduit couple together such that a chamber is defined between the first conduit and the second conduit;
- a first opening at least partially defined by the first conduit communicating the chamber with ambient atmosphere;
- and
- a second opening defined in a side wall of the second conduit communicating an interior of the exhaust assembly with the chamber, wherein an exhaust flow path is defined from the interior of the exhaust assembly to ambient atmosphere via the first opening and the second opening, and wherein the exhaust flow path is continuously open.
A connector for use with a breathing gas delivery system including a delivery conduit and a patient interface, the connector comprising:
- a first conduit adapted to be coupled to a patient interface;
- and
- a second conduit adapted to be coupled to a delivery conduit, wherein the first conduit and the second conduit couple together to define an exhaust flow path from an interior of the first conduit or the second conduit to ambient atmosphere, and wherein the exhaust flow path is continuously open.
Dependencies are inferred from the claim text.