CUSHION ASSEMBLY FOR A RESPIRATORY MASK
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United States of America Patent
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Issued Date -
Mar 9, 2023
app pub date -
Jul 20, 2022
filing date -
Jul 7, 2009
priority date (Note) -
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Abstract
A mask cushion or a mask assembly therewith provides a comfortable and effective seal for provision of a gas therapy by a respiratory treatment apparatus. The mask cushion may be integrated with or coupled to a mask frame. The mask cushion typically includes an inner cushion component. The mask cushion also includes a patient facial-contact side portion with a chamber and a barrier to form the chamber that may be flexible. The chamber may serve as an outer layer with respect to the inner cushion component. The chamber may be partially or completely filled with a gas, fluid or gel. The inner cushion may be formed with a soft flexible material such as an elastomer or foam, etc. The barrier may be a membrane and may also be soft flexible material.
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