Airtight mask seal
US10814085B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2017 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | Apr 23, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/0618
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A mask for use in delivering air at a therapeutic pressure to a patient in need of therapy receives air from an air tube into an inelastic cloth mask portion that is attached to an interface portion constructed of an elastic material. The interface portion is a three dimensional structure that is attached at its edges to the mask portion and has a nose hole for receiving the patient's nose. When air is delivered the elastic interface portion pillows out and forms a seal against the patient's face. To assist with the seal, a structural assistance member may optionally be disposed on the interface portion above the nose hole so that it can be adjusted in the area of the bridge of the patient's nose.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.