Headgear for a patient interface

US11338103B2 · kind B2 · utility

Inventors

• Emily Elizabeth Blanch · Sydney, AU
• Michiel Kooij · Sydney, AU
• Stewart Joseph Wagner · Richmond, AU
• Hadley White · Sydney, AU
• Paul Derrick WATSON · Sydney, AU
• Ryan Michael Kirkpatrick · Sydney, AU

Key dates

• Filing date: Aug 20, 2019
• Grant date: May 24, 2022
• Expiry date: Aug 20, 2039

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2205/42
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A positioning and stabilising structure comprising at least one gas delivery tube to receive the flow of air from a connection port on top of the patient's head and to deliver the flow of air to the entrance of the patient's airways via the seal-forming structure, the at least one gas delivery tube comprising a tube wall having an extendable concertina structure comprising a plurality of folds in the tube wall alternatingly forming a plurality of ridges and a plurality of grooves, the folds able to be at least partially unfolded to increase a separation of the ridges to elongate the extendable concertina structure; and one or more ridge connecting portions provided to the tube wall, each of the one or more ridge connecting portions connecting two or more adjacent ridges of the plurality of ridges and being configured to resist the separation of the ridges.