Plenum chamber insert for patient interface

US11497874B2 · kind B2 · utility

Assignee

• ResMed Pty Ltd · AU

Inventors

• Tumul Gupta · Sydney, AU
• Michael Christopher HOGG · Sydney, AU
• Luke Andrew STANISLAS · Sydney, AU
• Lang Eng Siang Teh · Sydney, AU
• Christer Engström · Åkersberga, SE
• Lorenz EBERL · Sydney, AU
• Adrian Apalakis · Sydney, AU
• Balint Franko · Aurora, US

Key dates

• Filing date: Mar 18, 2020
• Grant date: Nov 15, 2022
• Expiry date: Mar 18, 2040

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02A90/10
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A patient interface includes: a plenum chamber; a seal-forming structure; a positioning and stabilising structure; a plenum chamber insert configured to be positioned and retained within the plenum chamber; and a vent structure; wherein the plenum chamber insert has a plenum chamber insert port; wherein the plenum chamber insert has an exterior surface configured to be positioned adjacent to an interior surface of the plenum chamber; wherein when the plenum chamber insert is positioned and retained within the plenum chamber, a radial channel is formed by the interior surface of the plenum chamber and the exterior surface of the plenum chamber insert such that gas is able to pass between a patient-proximal side plenum chamber insert and a patient-distal side of the plenum chamber insert via the radial channel during use.