Pneumatic system for controlled oxygen delivery
US10953189B2 · kind B2 · utility
1Cited by
4References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 18, 2018 |
| Grant date | Mar 23, 2021 |
| Priority date | — |
| Expiry date | Oct 19, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2230/432
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A pneumatic system for delivering oxygen to a subject, including an oxygen supply channel having an inlet, a patient delivery outlet and an exhaust; and a flow control element configured to control the flow from the oxygen inlet to the patient delivery outlet, or to the exhaust; wherein inhalation by the patient causes the flow control element to assume a first position, allowing oxygen to flow from the oxygen inlet to the patient delivery outlet; and wherein exhalation by the patient causes the flow control element to assume a second position, directing oxygen flow from the oxygen inlet to the exhaust.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.