Method and apparatus for managing moisture buildup in pressurised breathing systems

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United States of America Patent

PATENT NO 9717870
SERIAL NO

11988541

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Abstract

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A washout vent formed of or treated with hydrophobic or hydrophilic material, or a vent coated with hydrophobic or hydrophilic material, reduces noise and/or minimizes or precludes the formation of blockage in the vent pathway due to outflow of gas from a respiratory mask. One or the other or combinations of hydrophobic and hydrophilic materials may be used to repel or wick moisture away to minimize or preclude moisture buildup on vent surfaces and/or clogging of vent pathways, particularly when using humidified air. Sintered porous plastic hydrophobic or hydrophilic materials are utilized and the porosity may be varied integrally within the vent membrane or by forming the vent from layers of materials having different porosities.

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Patent Owner(s)

Patent OwnerAddress
RESMED PTY LTDBELLA VISTA NEW SOUTH WALES

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Henry, Robert Edward Bella Vista, AU 105 4654
Kwok, Philip Rodney Bella Vista, AU 299 15491
Veliss, Lee James Bella Vista, AU 111 4692

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