Cushion with protrusion and patient interface device including same
US11083861B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2018 |
| Grant date | Aug 10, 2021 |
| Priority date | — |
| Expiry date | Oct 22, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/0625
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cushion is for use in a pressure support system for delivering a flow of breathing gas to an airway of a patient. The cushion includes a body having a first end and a second end located opposite the first end. The body defines a space therein. The cushion further includes a sealing portion defining a single opening into the space. The single opening is adapted to surround both a first nostril and a second nostril of a patient. The sealing portion is located between the first end and the second end. The sealing portion includes a first protruding portion and a second protruding portion each extending outwardly from the body and being adapted to sealingly engage against an interior surface of a corresponding one of the first nostril and the second nostril.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.