Respiratory mask sealing interface
US9056178B2 · kind B2 · utility
14Cited by
7References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2009 |
| Grant date | Jun 16, 2015 |
| Priority date | — |
| Expiry date | May 15, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M16/0633
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A sealing interface includes an inner cushion and an outer sheath. The outer sheath substantially seals against the facial contours of the user. The inner cushion and the outer sheath each have a nasal bridge region, left and right cheek regions and either one of an upper lip region or a chin region. In use these regions are aligned with the corresponding nasal bridge region, left and right cheek regions and either the upper lip region or the chin region of a user. The inner cushion includes a hinged region. The hinged region is adapted to flex substantially independently of the inner cushion cheek regions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.