Replaceable cushion for respiratory masks
US11577039B2 · kind B2 · utility
0Cited by
8References
28Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 16, 2014 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | Jun 28, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49945
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A “replaceable cushion system” allows for a cushion frame with an integral cushion (e.g., a gel bladder) to be quickly and easily swapped in and out of a respiratory mask (e.g., a CPAP mask) while maintaining an effective seal via the compression of a gasket. In all of the preferred embodiments, the cushion frame (with an affixed cushion) is removably attached to a mask shell by a press-fit and by associated prongs and notches. The prongs can be located in the mask shell with the notches in the cushion frame, or vice versa.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.