Gas mixing system for an anaesthetic apparatus
US5727545A · kind A · utility
10Cited by
3References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 7, 1996 |
| Grant date | Mar 17, 1998 |
| Priority date | — |
| Expiry date | May 7, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M16/18
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A gas-mixing system for anaesthetic apparatuses has a vaporizer unit for liquid anaesthetic, a first gas line carrying a specific first flow of gas to the vaporizer unit, and a second gas line carrying a second flow of gas past the vaporizer unit. The first gas flow and the second gas flow jointly constitute a total flow of respiratory gas. A first flow regulator is arranged to regulate total flow, and a second flow regulator is arranged to regulate the second flow according to the difference between total flow and a reference value for the first flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.