Patent ID: 11944752
Assignee: KONINKLIJKE PHILIPS N.V.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 10:
11. A patient interface device for use in a system adapted to provide a flow of breathing gas to the airway of a patient, the patient interface device comprising:
a frame member; and
a cushion member coupled to the frame member, the cushion member comprising a sealing flap having a plurality of dimples defined therein,
wherein the sealing flap has a first thickness between the plurality of dimples,
wherein the sealing flap has a second thickness at each dimple that is less than the first thickness, and
wherein the plurality of dimples are arranged in a pattern such that the sealing flap has one or both of:
a stretch property of a first reference flap having a uniform thickness of the second thickness; and/or
a structural property of a second reference flap having a uniform thickness less than the first thickness and greater than the second thickness.