Therapeutic gas delivery device with pulsed and continuous flow control
US11344693B2 · kind B2 · utility
0Cited by
7References
17Claims
0Family size
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Key dates
| Filing date | Jul 8, 2019 |
| Grant date | May 31, 2022 |
| Priority date | — |
| Expiry date | May 29, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/502
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Described are methods and devices for therapeutic or medical gas delivery that utilize at least one proportional control valve and at least one binary control valve. The proportional control valve may be in series with the binary control valve to provide a valve combination capable of pulsing therapeutic gas at different flow rates, depending on the setting of the proportional control valve. Alternatively, the proportional control valve and binary control valve may be in parallel flow paths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.