Cushion inside a cushion patient interface
US8267089B2 · kind B2 · utility
34Cited by
18References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2010 |
| Grant date | Sep 18, 2012 |
| Priority date | — |
| Expiry date | Aug 4, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M16/0816
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A patient interface device that includes a mask shell and a cushion assembly. The cushion assembly includes a seal cushion and a support cushion. The seal cushion contacts a first area of a patient's face to form a seal therewith. The support cushion defines a second area over a face of such a patient when the patient interface device is being worn. The second area overlaps at least a portion of the first area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.