Anesthetic breathing apparatus having volume reflector unit with controllable penetration
US9149590B2 · kind B2 · utility
6Cited by
2References
38Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 13, 2009 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Dec 28, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/502
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An anesthetic breathing apparatus and system, having a patient circle system for re-breathing exhaled gases by a patient, a volume reflector, a fresh gas delivery line, and a gas sensor unit arranged to measure a gas stream upstream a fresh gas connection and downstream said reflector unit. The gas sensor unit provides a signal for detection of a reflector driving gas (RDG) crossing over the volume reflector during inspiration based on at least one property of the gas stream measured by the gas sensor unit. Appropriate action may be taken based on this measurement, for instance in disclosed methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.