Systems and methods for concomitant CO2 sampling and O2 delivery
US10925514B2 · kind B2 · utility
0Cited by
1References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 19, 2018 |
| Grant date | Feb 23, 2021 |
| Priority date | — |
| Expiry date | Sep 15, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2230/432
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A CO2 monitoring system provides oxygen (O2) to a subject's mask with known characteristics. The CO2 monitoring system receives, from the mask, gas samples including exhaled CO2 diluted by O2. The CO2 monitoring system uses an adaptive noise canceller to cancel the diluting O2 by using the known characteristics of the O2 provided to the mask, the result of which process is restoration of the original concentration level of the CO2 as exhaled by the subject into the mask.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.