Respiratory mask having gas washout vent and method for making the mask
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 chan...
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Main Authors | , |
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Format | Patent |
Language | English |
Published |
03.03.2015
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Subjects | |
Online Access | Get full text |
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Summary: | 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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Bibliography: | Application Number: US20060793001 |