Medical vaporizer with carrier gas characterization, measurement, and/or compensation
US10946160B2 · kind B2 · utility
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40References
10Claims
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Assignee
Inventor
Key dates
| Filing date | Mar 23, 2017 |
| Grant date | Mar 16, 2021 |
| Priority date | — |
| Expiry date | Feb 19, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/021
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A medical vaporizer is provided. In one embodiment, dual-purpose sensors are employed, such as in a configuration in which one is positioned in the mixed gas flow channel and one is positioned in the main gas flow channel. The sensors provide measurements that may be used to determine both gas flow and gas concentration in the mixed and main gas channels, even when the identity and/or properties of the gas in the main gas channel are unknown. The measurements derived from the dual-purpose sensors may be used to measure and report the total anesthetic being delivered at the vaporizer output and/or improve vaporizer accuracy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.