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US 12,515,009 B2Granted
Gas humidification arrangement
AssigneeFisher & Paykel Healthcare Limited
InventorsAnthony James Newland, Timothy James Beresford Sharp, Jess Edward Donnelly, Andre Van Schalkwyk
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Abstract
A humidification arrangement can be configured to have multiple compartments with each compartment having at least one moisture source and at least one heater. The compartments can be thermally isolated and can be controlled such that the moisture output of both the first and second compartments is set to a function of the same set of input signals.
Claims23
A respiratory gases conditioning system comprising:
- at least two stages, each stage of the at least two stages comprising a compartment configured to hold a volume of fluid, an inlet, and an outlet, wherein each stage of the at least two stages is configured to adjust a target gas characteristic or substance to a gases flow;
- a first manifold and a second manifold, wherein the first manifold is configured to couple the inlet of each of the at least two stages, and the second manifold is configured to couple the outlet of each of the at least two stages, the at least two stages being arranged to provide parallel flow paths, wherein the first manifold comprises a first manifold inlet and a first manifold outlet and the second manifold comprises a second manifold outlet, the first manifold outlet configured to deliver gases to a patient that have bypassed at least one of the at least two stages;
- one or more heaters configured to heat any one or more of the compartments;
- one or more valves configured to control gases flowing through at least one of the at least two stages;
- and
- a controller configured to control at least one of the one or more valves.
3 more elements
Dependencies are inferred from the claim text.