Patent · US Active

Respiratory mask sealing interface

US8939151B2 · kind B2 · utility

19Cited by

7References

20Claims

0Family size

Assignee

Fisher & Paykel Healthcare Limited · NZ

Inventors

Alastair Edwin McAuley · Dallas, US
Mark Arvind McLaren · Auckland, NZ
Wen Dong Huang · Auckland, NZ

Key dates

Filing date	Feb 4, 2011
Grant date	Jan 27, 2015
Priority date	—
Expiry date	Sep 8, 2032

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2205/3653
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A sealing interface forms part of an apparatus for supplying a flow of respiratory gases to a user. The sealing interface comprises a foam or gel inner cushion and a thin resilient rubber outer sheath. A face side of the inner cushion resiliently supports the outer sheath. The inner cushion has a toothed profile formed on the face side of the inner cushion. The toothed profile consists of at least one tooth having an apex on the perimeter of the inner cushion. The apex is positioned between two valleys in the perimeter of the inner cushion. In use the apex of each tooth of the toothed profile is in supporting contact with the outer sheath.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.