Breathing mask with breathing gas opening in the mask body
US11980718B2 · kind B2 · utility
0Cited by
13References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2018 |
| Grant date | May 14, 2024 |
| Priority date | — |
| Expiry date | Jun 28, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2209/088
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to a respiratory mask of modular construction. The main components are reduced to four parts and are provided by the mask body, the forehead support, the mask cushion and the attachment piece. The design, according to the invention, of the outflow structure between mask body and forehead support makes apertures in the mask body unnecessary for this purpose.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.