Remote oxygen flow adjustment
US11224715B2 · kind B2 · utility
0Cited by
15References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2018 |
| Grant date | Jan 18, 2022 |
| Priority date | — |
| Expiry date | Jan 15, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2016/0027
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A flow control apparatus includes an adjustable pressure regulator fluidly coupled to an inlet region and an outlet region and configured to reduce a pressure from a first value in the inlet region to a second value in the outlet region, where the second value is lower than the first value; and a fixed area orifice disposed between the outlet region and an outlet opening of the apparatus, wherein a flow rate of a gas is controlled by the fixed area orifice and is discharged from the apparatus to a gas supply line. The second value is based on a setting of the adjustable pressure regulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.