Device, system and method for thermal capnography
US11524130B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Aug 22, 2018 |
| Grant date | Dec 13, 2022 |
| Priority date | — |
| Expiry date | Oct 14, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB81B2201/031
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for measuring a concentration of a component in a target sample includes a flow chamber with a first channel that receives a reference sample having a known concentration of the component. The flow chamber also includes a second channel that receives the target sample having an unknown concentration of the component. A pump operates to pump the reference sample and the target sample at a same volume flow rate through the first and second channels, respectively. A thermal mass flow meter measures a thermal conductivity of the reference sample, a thermal conductivity of the target sample, or both.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.