Respiratory mask
US10603457B2 · kind B2 · utility
10Cited by
1References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 21, 2017 |
| Grant date | Mar 31, 2020 |
| Priority date | — |
| Expiry date | Jun 3, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M16/0683
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A respiratory mask includes a mask frame and a soft mask pad. The mask frame includes a ring-shaped base which is disposed at the front end of the mask pad, and a pair of wing portions which are connected to two opposite sides of the ring-shaped base and each of which is formed with a free end face. The mask pad includes an abutting portion, and is transformable between a non-sealing state, where the abutting portion is separated from the free end faces, and a sealing state, where the abutting portion abuts against the free end faces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.