Fisher & Paykel Healthcare Limited

Dana Willfroth

Melissa Catherine Bornholdt

Bruce Michael Walls

Simon Mittermeier

Matthew James Pedersen

Craig Robert Prentice

Gregory James Olsen

Roheet Patel

Tony William Spear

Hamish Joshua Rose

Peter David Alexander Bearne

Paul Mathew Freestone

Jae Yun Lim

Abby Rebecca Farrow

Birgit Wuestenhagen

An interface for positive pressure therapy includes a mask assembly, a headgear assembly and a connection port assembly. The headgear assembly includes a component formed from two layers of 3D fabric folded. The mask assembly includes a seal member that has an upper portion movably connected to an integrated lower portion, wherein the upper portion rolls during hinging movement of the upper portion relative to the lower portion. The headgear assembly allows connection to the mask assembly in a direction substantially normal to a direction of strap tension. The connection port assembly includes a swivel elbow with a valve member that controls flow through a port that opens toward the user. The valve member is provided with a tapered bead that helps prevent the valve member from sticking in a given position. Also, a connector for connecting a respiratory tube to an elbow connector.

Headgear for use with a patient interface

Headgear for a patient interface

In some embodiments there is provided a headgear assembly for a full-face under-nose respiratory mask comprising a strap assembly including a rear panel, a crown strap, a pair of opposing upper side straps, and a pair of opposing lower side straps. The assembly further comprises a flexible headgear connector element, wherein a free end of each of the upper straps is coupled to the headgear connector element, and wherein the headgear connector element is configured to extend laterally across and be removably fastened to a frame of the respiratory mask below a tip of a user's nose. There is also provided a respiratory mask assembly comprising a mask frame and a cushion module, the mask frame comprising a breathing gas inlet configured to receive a supply of breathable gas and to deliver the breathable gas to the cushion module, the cushion module being configured to form a seal with a user's face. The mask assembly can further comprise a bias vent in communication with the cushion module, and configured to allow air to be exhausted from the cushion module through the bias vent. the bias vent can be provided with a diffuser comprising diffuser material configured to extend over the bias vent, the diffuser material providing a tortuous air path from the bias vent through the diffuser. Embodiments are disclosed in which the bias vent and/or diffuser are provided on various components of the assembly.

Interface assemblies for respiratory therapy

Growing community of inventors

Auckland, New Zealand

Dana Willfroth