Patient interface systems
US11045619B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2018 |
| Grant date | Jun 29, 2021 |
| Priority date | — |
| Expiry date | Aug 7, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/0625
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A patient interface structure includes a cushion configured to sealingly engage the patient's face and a front that is more rigid than the cushion. The cushion includes a forward opening, a rearward opening that is opposite the forward opening and a continuous sealing surface. The continuous sealing surface has a mouth sealing portion configured to seal around the patient's mouth and a nasal sealing portion configured to seal around both of the patient's nasal airways. The front plate includes an air inlet configured to both receive the pressurized respiratory gas and secure headgear to the patient interface structure. In addition, the nasal sealing portion includes at least one aperture that is separate from the rearward opening. Also, the front plate, the mouth sealing portion and the nasal sealing portion together form a common chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.