Patient interface device having multi-chamber adjustable cushion, and apparatus and method for adjusting same
US10688265B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2017 |
| Grant date | Jun 23, 2020 |
| Priority date | — |
| Expiry date | Jul 13, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2209/045
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cushion member for a patient interface device that includes a main body portion including a plurality of chambers and a self-sealing cap portion coupled to the main body portion. The cap portion covers each of the chambers and forms a plurality of membrane members, with each membrane member being positioned over and sealing a respective one of the chambers. The cap portion is made of a self-sealing material such that that each of the membrane members is structured to self-seal responsive to having a needle inserted through and pulled out of the membrane member. Also, an apparatus and a method for selectively adjusting the internal pressure of the chambers of such a cushion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.