Patent ID: 11890417
Assignee: KONINKLIJKE PHILIPS N.V.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A cradle style cushion for a patient interface device, the cradle style cushion comprising:
a central sealing body portion defining an internal chamber, the central sealing body portion comprising:
a front wall,
a rear wall,
a bottom wall, and
a top wall including:
a flat or concave central sealing surface structured to engage a septum and a bottom of each nostril of a patient when the patient interface device is donned by the patient, the central sealing surface having at least one hole defined therethrough,
a first stabilizing surface, and
a second stabilizing surface, the first and second stabilizing surfaces each extending upwardly and outwardly from the central sealing surface and a top edge of the front wall in a direction away from the bottom wall and being structured to wrap around and at portions thereof engage an outer side of a respective one of the nostrils of the patient when the patient interface device is donned by the patient,

wherein the first stabilizing surface includes a first front side edge portion and the second stabilizing surface includes a second front side edge portion, and wherein the top edge of the front wall, the first front side edge portion and the second front side edge portion together define a front opening of the central sealing body portion which is structured to expose the front and top of the nose of the patient when the patient interface device is donned by the patient, wherein at least a portion of the first stabilizing surface curves inwardly toward a middle of the central sealing surface and has a first radius of curvature of 0 mm to 15 mm and wherein at least a portion of the second stabilizing surface curves inwardly toward the middle of the central sealing surface and toward the first stabilizing surface and has a second radius of curvature of 0 mm to 15 mm.