Breathing assistance apparatus
AssigneeFisher & Paykel Healthcare Limited
InventorsAlastair Edwin McAuley, Christopher Earl Nightingale, Aidan Mark Shotbolt, Stuart Robert Allen Grant, Lewis George Gradon
Life of this patent
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Abstract
A patient interface that is comfortable for a user to wear is disclosed. The patient interface includes a forehead rest and cushion. In particular the cushion includes a deformable resilient member that when compressed creates a uniformly and gradually increasing force while evenly distributing the pressure on the forehead of the patient.
Claims17
A mask for a respiratory device configured to be positioned around a nose of a user, the mask comprising:
- a body portion provided with an inlet configured to be connected to an inspiratory conduit;
- a mask cushion provided around a periphery of the body portion and configured to follow contours of a face of the user to provide a seal configured to prevent leakage;
- a forehead rest configured to engage the body portion;
- and
- a forehead cushion comprising:
- a base member comprising a flange configured to engage the forehead rest,
- a curved member configured to contact the forehead of the user, and
- a plurality of vertical walls extending from the base member
- wherein the plurality of vertical walls are closer to a center of the base member than edges of the base member.
A forehead cushion of a respiratory device configured to rest against a forehead of a user, the forehead cushion comprising:
- a base member, wherein the base member comprises a flange configured to engage a portion of the mask,
- a curved member configured to contact the forehead of the user comprising outer edges that are configured to roll inwards to provide controlled support to the forehead cushion, and
- two walls extending from the base member that are configured to support a force placed on the curved member, wherein the two walls are nearer to the center of the base member than the edges of the base member.
Dependencies are inferred from the claim text.