US Patent 10143817 Cushion having adjustable stabilization member

A cushion assembly (16) for use in a patient interface device (10) includes a cushion member having a sealing flap (24) adapted to sealing engage a user's face about at least one of an oral orifice or nasal orifices of the user. The cushion member defines a cavity (30) therein accessible via an opening generally defined by the sealing flap. The cushion assembly further includes a stabilizing member (16b) having a first end and an opposite second end, the first end and the second end being selectively coupled to the sealing flap such that the stabilizing member spans across at least a portion of the opening.