Patent · US Active

Bladder cushion, forehead cushion, headgear straps, headgear cap and/or chinstrap

US10806885B2 · kind B2 · utility

0Cited by

14References

26Claims

0Family size

Assignee

ResMed Pty Ltd · AU

Inventors

Robert Edward Henry · Parramatta, AU
Philip Rodney Kwok · Chatswood, AU
Karthikeyan Selvarajan · Sydney, AU
Philip John Gunning · Sydney, AU
Christopher John Baxter · Chatswood, AU

Key dates

Filing date	Apr 17, 2017
Grant date	Oct 20, 2020
Priority date	—
Expiry date	Jul 1, 2039

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2210/0618
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A cushion for a patient interface includes two or more bladders arranged in concentric relation. Each of the bladders includes a face-contacting portion adapted to engage the patient's face, and each of the bladders is adapted to be pressurized independently from one another. At least one of the bladders is an active bladder that is pressurized to at least a sealing pressure to form a continuous seal with the patient's face in use.

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