Breathing assistance apparatus

摘要

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.

主权项

1. A device for delivering a supply of gases to a user comprising:
a patient interface configured to fluidly communicate with the supply of gases, the patient interface comprising:
a hollow mask body having a first opening and a second opening; anda mask cushion extending around a periphery of the first opening and configured to form a seal between the hollow mask body and the face of the user; the patient interface further comprising:
an arm comprising an aperture and a plurality of recesses;a movable member configured to engage two of said plurality of recesses when the movable member is in each of a plurality of predetermined positions; anda forehead pad comprising a forehead contacting portion, an elongate member and at least two protrusions configured to engage the movable member; whereby movement of the movable member between each of the plurality of predetermined positions causes a linear distance between the forehead contacting portion and the arm to increase or decrease by a predetermined linear distance.