Filter assembly for a therapeutic gas delivery device
AssigneeMallinckrodt Pharmaceuticals Ireland Limited
InventorsAndrew Meyer, John Stanton, Daniel Cody
Life of this patent
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Abstract
Disclosed herein is a sample gas filter assembly for a therapeutic gas delivery device. The sample gas filter assembly can have a filter apparatus, a water-permeable tubular membrane, and a ventilated cap. The sample gas filter assembly may be configured for maintaining a condensate pH from an assembly for humidity conditioning and filtering a sample gas in a therapeutic gas delivery device.
Claims20
A filter assembly for a therapeutic gas delivery device, the filter assembly comprising:
- a filter apparatus comprising an inlet, an outlet, at least one reservoir, and at least one filter membrane between the inlet and the outlet, the filter apparatus operable to remove water vapor from a sample gas and collect a condensate in the at least one reservoir;
- and
- a water-permeable tubular membrane fluidly connected to the outlet of the filter apparatus.
A method for humidity conditioning and filtering a sample gas in a therapeutic gas delivery device, the method comprising:
- passing the sample gas through a filter apparatus of an assembly;
- and
- passing a filtered sample gas though a water-permeable tubular membrane of the assembly, wherein the sample gas leaving the water-permeable tubular membrane is a humidity conditioned sample gas.
Dependencies are inferred from the claim text.