Patient interfaces

US11701486B2 · kind B2 · utility

Assignee

• Fisher & Paykel Healthcare Limited · NZ

Inventors

• Fadi Karim Moh'd Mashal · Auckland, NZ
• Kirstin Elizabeth Middelkoop · Auckland, NZ
• Roheet Patel · Auckland, NZ
• Peter David Alexander Bearne · Auckland, NZ
• Mark Andrew Thompson · Buford, US
• Amit Galgali · Auckland, NZ
• Michael John Henri Cox · Hertford, GB
• Gregory James Olsen · Auckland, NZ
• Mark Arvind McLaren · Auckland, NZ
• Max Leon Betteridge · Auckland, NZ
• Bruno Sintive · Auckland, NZ

Key dates

• Filing date: Jun 17, 2015
• Grant date: Jul 18, 2023
• Expiry date: Mar 10, 2037

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2210/0625
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An interface for positive pressure respiratory therapy includes a mask assembly having a mask seal and a mask shell. The mask assembly is positioned lower than and exposes a bridge of the user's nose. The mask seal includes first and second portions on respective first and second sides of a nasal region that contact opposing sides of the user's nose. The first and second portions each include supports that help maintain a shape of the mask seal. A pair of covers can be supported relative to the mask assembly and adjacent a respective one of the first and second portions of the mask seal. The covers limit expansion of the first and second portions of the mask seal in response to pressurized air within the mask seal. The supports of the first and second portions can transfer load from the mask seal to the covers.