Quiet nasal cannula
US10300236B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2012 |
| Grant date | May 28, 2019 |
| Priority date | — |
| Expiry date | Apr 6, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M16/16
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Devices for providing respiratory therapy to a patient are disclosed. One device includes first and second elongated lumens and a nosepiece. The elongated lumens each have a constant internal diameter. The nosepiece portion has a third lumen and a fourth lumen. The third and fourth lumens have constant internal diameters equal to those of the first and second lumens. The third and fourth lumens have inlet ends adapted to be connected to the outlet ends of the first and second lumens without constricting the internal diameter of the first and second lumens. The third and fourth lumens are configured to receive first and second flows of breathing gas from the first and second lumens and deliver the flows of breathing gas to outlets end of the third and fourth lumens. The second flow of breathing gas is maintained separate from the first flow of breathing gas within the nosepiece portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.