Cushion assembly for a respiratory mask
US10238825B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2010 |
| Grant date | Mar 26, 2019 |
| Priority date | — |
| Expiry date | Dec 7, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/0216
- WIPO fieldMedical technology
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.