Nasal seal and respiratory interface
US10821250B2 · kind B2 · utility
2Cited by
93References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2013 |
| Grant date | Nov 3, 2020 |
| Priority date | — |
| Expiry date | Jun 9, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/0618
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A nasal seal for a respiratory interface comprises a supple lower-nose-receiving center part having a concave shape pre-formed to receive and sealingly contact the tip, lower sides, and base of the nose and sealingly contact the upper lip, and position an aperture for gas flow beneath the nares of wearer. The seal may have resilience or memory towards this preformed shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.