US 10,518,054 B2Granted

Respiratory mask and related portions, components or sub-assemblies

AssigneeFisher & Paykel Healthcare Limited

InventorsGregory James Olsen, Melissa Catherine Bornholdt, Campbell Neil Addison Martin, Tony William Spear, Simon Mittermeier, Hamish Joshua Rose, Max Leon Betteridge, Christopher Earl Nightingale, Matthew James Pedersen, Sophia Adele Johnson, Mark John Arrowsmith

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Abstract

A respiratory mask for providing positive pressure therapy and a bias-flow venting system configured to reduce discernable draft generated by exhausted air are disclosed herein. The respiratory mask has a ball jointed elbow, one or more detachable forehead pieces and a headgear with a spacer fabric region. The elbow is configured to be removable when oriented to a predetermined position. The forehead pieces are provided in one or more sizes. The spacer fabric region having two or more layers wherein the raw edges are turned to the inside of the layers. The seal having improved seal performance and accommodating a wider variety of facial geometries. The bias-flow system having a tube and exhaust holes radially aligned on a bead of the tube. The bias-flow system also having an annular component exhaust holes and a shroud having a plenum chamber around the exhaust holes.

Claims29

Dependent claims

A cushion module for a respiratory interface, comprising:

a seal housing constructed from a relatively rigid material, the seal housing defining an aperture configured to allow a breathing gas to enter an interior of the cushion module;
a seal supported by the seal housing and having an upper portion and a lower portion, the seal further comprising a face contacting surface configured to contact the face of a user and create at least a substantial seal with the face of the user, the face contacting surface having an inner edge defining an opening in the face contacting surface, wherein the upper portion of the seal comprises a reduced stiffness portion defined between a first boundary and a second boundary such that the reduced stiffness portion deforms in response to forward movement of an upper portion of the face contacting surface, wherein an angle defined between the first boundary and the second boundary is at least 20 degrees;
wherein the reduced stiffness portion comprising a rolling portion configured to roll over onto an outer surface of the cushion module in response to the forward movement of the upper portion of the face contacting surface.

Dependencies are inferred from the claim text.

Facts

Application: 15/506,226Filed 25 Aug 2015 · us provisional application
Priority: 25 Aug 2014
Published: US 2018/0185598 A15 Jul 2018
Granted: 31 Dec 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

A61M 16/0622
With face sealing means comprising a flap or membrane projecting inwards, such that sealing increases with increasing inhalation gas pressure:…
A61M 16/0611
Means for improving the adaptation of the mask to the patient: with a gusset portion
A61M 16/0616
Means for improving the adaptation of the mask to the patient: with face sealing means comprising a flap or membrane projecting inwards, such that…
A61M 16/0633
Means for improving the adaptation of the mask to the patient: with forehead support

Family

Application62/041,236Us provisional application · filed 25 Aug 2014
Application62/041,262Us provisional application · filed 25 Aug 2014
Application62/041,234Us provisional application · filed 25 Aug 2014
Application62/096,481Us provisional application · filed 23 Dec 2014
US 2018/0185598 A1Pre-grant publication · published 5 Jul 2018
US 10,518,054 B2This patent

From the US filing history. Foreign family members aren’t listed.