Breathing assistance apparatus
AssigneeFisher & Paykel Healthcare Limited
InventorsLewis George Gradon, Alastair Edwin McAuley, Chris Earl Nightingale, Ivan Milivojevic
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Abstract
A patient interface for CPAP is described, with deformable cushions for the forehead rest. Each cushion providing a substantially even load bearing surface and progressive deformation. Several embodiments are disclosed for achieving desired mode(s) of deformation.
Claims10
A device for delivering a supply of gases to a user comprising:
- a patient interface, in use in fluid communication with said supply of gases,
- a forehead rest engaging said interface including a deformable resilient member configured to in use rest against the face of a user, said deformable resilient member including curved portion and a section curved portion.
A device as claimed in claim S wherein first curved portion is attached at both ends to a base member and said second curved portion is inverted and attached at each end to, and smaller in height than, said first curved member;
- said second mode of deformation begins where said second bridge member is in contact with said base member and both said first bridge member and said second bridge member simultaneously deform.
A device as claimed in anyone of the proceeding claims wherein said resilient deformable member is moulded from silicon.
A device as claimed in anyone of the proceeding claims wherein said resilient deformable member is extruded from silicon.
Dependencies are inferred from the claim text.