Patent ID: 11931510
Assignee: RESMED PTY LTD
Field: Medical technology (Instruments)
Classification: CPC A  Y | IPC A

Claim 21:
22. The cushion assembly of claim 1, wherein:
the cushion has a nose bridge region configured to engage the patient's nose proximal to the patient's nose bridge in use and a pair of side of nose regions, each of the side of nose regions extending, relative to the patient in use, inferiorly from the nose bridge region and in opposite lateral directions relative to one another to engage a corresponding side of the patient's nose,
the cushion further comprises a scalloped surface or an inwardly curved surface at each of the side of nose regions to reduce an amount of foam near the patient's eyes,
the cushion-to-frame component comprising a pair of lateral sides, and each of the lateral sides of the cushion-to-frame component further comprising a protrusion that is configured to extend posteriorly towards the patient in use,
the scalloped surface or the inwardly curved surface is adjacent to the protrusion,
the cushion and the cushion-to-frame component are joined together with an adhesive,
the cushion-to-frame component further comprises at least one rib,
the cushion and the cushion-to-frame component are joined together permanently,
the cushion and the cushion-to-frame component are curved at each of the side of nose regions in a medial direction to avoid the patient's eyes,
the cushion further comprises a cushion-to-frame component engagement surface, the cushion further comprising a face-contacting surface opposite the cushion-to-frame component engagement surface,
the cushion-to-frame component is relatively more rigid than the cushion such that the cushion-to-frame component engagement surface of the cushion at each of the side of nose regions is deformed to match a shape of the cushion-to-frame component,
the cushion-to-frame component is configured to be exposed to the nose-receiving chamber, and
the cushion-to-frame component further comprises a chin region that supports the cushion against the patient's chin during use, the chin region being concave in shape between the lateral sides to accommodate the patient's chin during use.