Ventilator circuit for oxygen generating system
US8667963B2 · kind B2 · utility
8Cited by
7References
8Claims
0Family size
Assignee
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Key dates
| Filing date | May 15, 2007 |
| Grant date | Mar 11, 2014 |
| Priority date | — |
| Expiry date | Oct 19, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3365
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A ventilator circuit is provided for use with a ventilator and a low pressure low flow oxygen source to provide a hyper-oxygenated mixture of air and oxygen at the onset of inspiration. The ventilator circuit achieves this result by using its inspiratory limb to store oxygen between breaths. As a result, the oxygen content of dead space gas is increased before delivery to the distal alveoli of the patient. Accordingly, the ventilator circuit achieves an efficient use of available oxygen and requires less oxygen to a desired oxyhemoglobin percentage at the patient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.