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

Claim 14:
15. A system adapted to provide a flow of breathing gas to the airway of a patient, the system comprising:
a pressure generating device structured to produce the flow of breathing gas;
a delivery conduit having a first end coupled to the pressure generating device and an opposite second end, the delivery conduit being structured to receive the flow of breathing gas from the pressure generating device at the first end and communicate the flow of breathing gas from the first end to the second end; and
a patient interface device having a cushion member coupled to the second end of the delivery conduit, the cushion member being structured to sealingly engage about the airway of the patient and to communicate the flow of breathing gas from the second end of the delivery conduit to the airway of the patient,
wherein the cushion member comprises 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.