US 10,238,825 B2 · Cushion assembly for a respiratory mask

Abstract

A mask cushion or a mask assembly therewith provides a comfortable and effective seal for provision of a gas therapy by a respiratory treatment apparatus. The mask cushion (102) may be integrated with or coupled to a mask frame. The mask cushion typically includes an inner cushion component (104). The mask cushion also includes a patient facial-contact side portion with a chamber (108) and a barrier (106) to form the chamber that may be flexible. The chamber may serve as an outer layer with respect to the inner cushion component. The chamber may be partially or completely filled with a gas, fluid or gel. The inner cushion may be formed with a soft flexible material such as an elastomer or foam, etc. The barrier may be a membrane and may also be soft flexible material.

Claims51

Dependent claims

A cushion for a respiratory mask to provide an interface for contacting a facial feature of a patient, the cushion comprising:

an inner cushion component;
and
a patient contact side portion, the patient contact side portion comprising (1) a barrier defining a chamber, and (2) the chamber, the chamber comprising an outer layer with respect to the inner cushion component, wherein the inner cushion component and comprises a porous structure inside the chamber, wherein the porous structure is configured to permit a chamber material to flow through the inner cushion component from the chamber during use and comprises a plurality of structural apertures, wherein each structural aperture defines a channel that extends through the inner cushion component from a first surface of the inner cushion component to a second surface of the inner cushion component.

Dependencies are inferred from the claim text.

Facts

Application

13/382,427Filed 25 Jun 2010 · us provisional application

Priority

7 Jul 2009

Published

US 2012/0132208 A131 May 2012

Granted

26 Mar 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification5 codes

A61M 16/06
Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators ; Tracheal tubes: respiratory or anaesthetic masks
A61M 16/0622
With face sealing means comprising a flap or membrane projecting inwards, such that sealing increases with increasing inhalation gas pressure:…
A61M 16/0057
Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators ; Tracheal tubes: pumps therefor
A61M 2205/0216
Characterised by a particular materials: materials providing elastic properties, e.g. for facilitating deformation and avoid breaking

Cushion assembly for a respiratory mask

Life of this patent

Cushion assembly for a respiratory mask

Life of this patent

Abstract

Claims51