Respiratory mask
US8387619B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2009 |
| Grant date | Mar 5, 2013 |
| Priority date | — |
| Expiry date | Oct 7, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M16/0683
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A respiratory mask includes a single-piece first cushion ring defining an airflow channel and having a front cover-engaging end portion and a rear abutment end portion adapted to abut against a user's face below the forehead, a cover shell having a cover plate engaged to the front cover-engaging end portion and provided with a connecting hole that is adapted to be connected to an air supply source, a resilient forehead support connected to a top end of the front cover-engaging end portion and bendable toward the rear abutment end portion, a resilient forehead abutment body connected to a top end of and supported by the resilient forehead support and including a second cushion ring adapted to abut against the forehead of the user, and an adjustable head strap unit connected to the first cover shell and the resilient forehead abutment body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.