Patent · US Active

Cushion for patient interface

US8567404B2 · kind B2 · utility

85Cited by

550References

30Claims

0Family size

Assignee

ResMed Corp. · AU

Inventors

Aaron Samuel Davidson · Sydney, AU
Robin Garth Hitchcock · Parramatta, AU
Matthew Eves · Sydney, AU
David John Worboys · Chatswood, AU
Susan Robyn Lynch · Parramatta, AU

Key dates

Filing date	Nov 14, 2012
Grant date	Oct 29, 2013
Priority date	—
Expiry date	Nov 14, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A cushion for a patient interface that delivers breathable gas to a patient includes a base wall structured to be connected to a frame, an underlying support cushion extending away from the base wall towards the patient's face in use, and a membrane provided to substantially cover at least a portion of the underlying cushion. The membrane is adapted to form a continuous seal on the patient's face. The underlying cushion has a spring-like connection with the base wall. The underlying cushion and/or base wall define a spring constant that varies along a length of the seal.

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