Patent · US Active

Anti-asphyxia valve assembly for respirator mask

US9295805B2 · kind B2 · utility

15Cited by

6References

41Claims

0Family size

Assignee

ResMed Corp. · AU

Inventors

David John Worboys · Chatswood, AU
Alison Oldenburg · Crows Nest, AU
Philip Thomas Stallard · Sydney, AU
James William Charles Vandyke · Chatswood, AU
Susan Robyn Lynch · Parramatta, AU
Steven John Lubke · Sydney, AU
Scott Alexander Howard · Sydney, AU
Robin Garth Hitchcock · Parramatta, AU

Key dates

Filing date	Jan 12, 2006
Grant date	Mar 29, 2016
Priority date	—
Expiry date	Jun 23, 2031

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2205/42
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

An elbow assembly for a mask assembly includes an anti-asphyxia valve (AAV) assembly that may take the form of a box-like frame work, a drop-in arrangement, or a slot-in arrangement. In each case, the AAV assembly may include a flap element which is movable so as to either direct ambient gas/air to the elbow assembly and thus the patient using the mask assembly, or to allow the passage of pressurized gas to the patient.

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