Multi-layers cushion assembly for a patient interface
US11724055B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2020 |
| Grant date | Aug 15, 2023 |
| Priority date | — |
| Expiry date | Mar 19, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/0618
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A patient interface for use in delivering a flow of breathing gas to an airway of a patient. The patient interface includes a front portion and a rear portion coupled to the front portion. The front portion and the rear portion together define a cavity therebetween which is structured to receive the flow of breathing gas. The rear portion includes a support layer disposed directly adjacent the cavity, the support layer having a region having a plurality of first thru-holes structured to receive the flow of breathing gas from the cavity. The rear portion further includes a patient engaging layer structured to engage the patient at or about the airway of the patient, the patient engaging layer including at least a second thru-hole structured to receive the flow of breathing gas from the plurality of first thru-holes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.