Nasal assembly

US11202877B2 · kind B2 · utility

Assignee

• ResMed Pty Ltd · AU

Inventors

• Daniel Robert Judson · Lapstone, AU
• Lee James Veliss · Rotterdam, NL
• Aaron Samuel Davidson · Sydney, AU
• Gregory Scott Smart · Sydney, AU
• Alison Oldenburg · Crows Nest, AU
• Susan Robyn Lynch · Parramatta, AU
• Philip Thomas Stallard · Sydney, AU
• Daniel Joseph Kaars Sijpesteijn · Perth, AU
• Gerard Michael Rummery · Sydney, AU
• Eric Austin Mullins · Aliso Viejo, US

Key dates

• Filing date: Oct 14, 2016
• Grant date: Dec 21, 2021
• Expiry date: May 13, 2040

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M16/0825
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A nasal assembly for delivering breathable gas to a patient includes a frame having lateral connector, a cushion with a pair of nozzles, and a clip to secure the cushion to the frame. The frame includes a vent channel and a plurality of vent holes. The frame/cushion includes structure (lugs/cut outs) to prevent the assembly of an unvented frame with an unvented cushion, for safety purposes. The frame includes cored portions that interface with corner lugs provided on the cushion. A patient interface includes a frame, a cushion (nasal mask, nasal-oro mask, nozzles, etc.) and a vent assembly including a pattern of vent holes including at least two rows.