Patent ID: 8869797

Claim:
A full-face cushion for a patient interface that delivers breathable gas to a patient, the cushion comprising different regions including nasal bridge, cheek and chin regions, the cushion being adapted to be connected to a frame, the full-face cushion comprising: a membrane including nasal bridge, cheek and chin regions to form a continuous seal against the patient's face; a support structure configured to connect the cushion to the frame and support the membrane, the support structure including: a lower portion; an upper portion extending, in at least one cross-sectional view, from the lower portion and laterally outwardly, with respect to the lower portion, the upper portion forming an angle with respect to the lower portion; and an underlying cushion to provide support to the membrane, the underlying cushion extending from the upper portion, wherein the membrane extends from the upper portion and covers, in a front view, the underlying cushion, wherein an entirety of the upper portion extending between the lower portion and the membrane forms a substantially linear extension that extends laterally outwardly continuously from the lower portion to the membrane, and wherein the angle in the nasal bridge region is different than the angle in the cheek regions of the cushion to vary a spring characteristic of the support structure in the nasal bridge region and the cheek regions of the cushion.