Respiratory mask
US11547824B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2019 |
| Grant date | Jan 10, 2023 |
| Priority date | — |
| Expiry date | Oct 29, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62B18/025
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention provides a respiratory mask comprising a nose cushion assembly. The nose cushion assembly comprises a base body and a buffering piece. The base body has a base intake portion, a base connection portion, and an air routing piece disposed at the inside of the base body and having a partitioning wall and a wall connection piece. The inside of the partitioning wall encloses an air intake zone. The wall connection piece is disposed outside the partitioning wall and connects with the base intake portion. Between the partitioning wall and the base intake portion there is defined an air outtake zone. The air intake zone is approximately at the center of the base intake portion. The buffering piece connects with the base connection portion and encloses a nose containing room, which in turn connects with the inside of the base body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.