Adaptive demand oxygen delivery system
US9278235B1 · kind B1 · utility
0Cited by
7References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 12, 2012 |
| Grant date | Mar 8, 2016 |
| Priority date | — |
| Expiry date | Dec 28, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2202/0208
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The delivery system has a control body in the form of a pendant to which oxygen is delivered and from which the oxygen is delivered to the patient. The body includes a reservoir which has a constant oxygen supply orifice. During rest conditions, the patient breathes only a portion of the reservoir contents. During physical activity, the patient breathes more deeply and inhales more oxygen from the reservoir. The reservoir has a flexible diaphragm and when breathing more deeply, the diaphragm moves to open a bolus oxygen supply valve to introduce a bolus of additional oxygen to the reservoir and thus to the patient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.