Vaporizer anesthesia level detector
US9217658B2 · kind B2 · utility
5Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2012 |
| Grant date | Dec 22, 2015 |
| Priority date | — |
| Expiry date | Oct 5, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/8206
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A vaporizer including a reservoir for storing an anesthetic liquid agent and a vaporizing element configured to vaporize the anesthetic liquid agent. A level detector is located outside of and adjacent to the exterior of the reservoir. The level detector includes at least one electrical field sensor configured to provide an output voltage signal based upon the capacitance of material within the reservoir proximate the electrical field sensor. The vaporizer includes a display providing a visual indication of the amount of liquid anesthetic agent in the reservoir.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.