Patient interfaces
US10994090B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 1, 2016 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | Jun 13, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/0618
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An interface for positive pressure respiratory therapy includes a mask assembly having a mask seal and a mask shell. The mask assembly is positioned lower than and exposes a bridge of the user's nose. The mask seal includes portions that contact opposing sides of the user's nose. Each portion of the mask seal includes supports that help maintain the mask seal's shape. Two covers can be supported relative to the mask assembly and adjacent a respective portion of the mask seal. The covers limit expansion of the portions of the mask seal in response to pressurized air within the mask seal. The supports can transfer load from the mask seal to the covers. An interface system can include multiple size mask seals, which can be designed with consideration of ethnic variations in nose size and/or shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.