Respiratory mask having gas washout vent and method for making the mask

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United States of America Patent

PATENT NO 8967146
APP PUB NO 20110180071A1
SERIAL NO

11793001

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Abstract

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A washout vent for a mask for use with a system for supplying breathable gas pressurized above atmospheric pressure to an airway of a mammal. The washout vent includes a vent orifice adapted for gas washout. The orifice includes one or more features that contribute to noise reduction, such as a channel with converging walls towards atmosphere, and/or a channel having one or more walls provided with surface treatment and/or contouring, such as roughening and/or scalloped portions.

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Patent Owner(s)

  • RESMED LIMITED

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Stallard, Philip Thomas Denistone, AU 51 1943
Veliss, Lee James West Ryde, AU 111 4661

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