초록 ▼

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 c

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.

대표청구항 ▼

[ I claim as my invention:] [1.] A gas-mixing system for an anaesthetic apparatus for supplying a respiratory gas and an anaesthetic to a breathing system of a living subject comprising:a vaporizer unit containing a liquid anaesthetic;a source of respiratory gas;a first gas line connected between sa

[ I claim as my invention:] [1.] A gas-mixing system for an anaesthetic apparatus for supplying a respiratory gas and an anaesthetic to a breathing system of a living subject comprising:a vaporizer unit containing a liquid anaesthetic;a source of respiratory gas;a first gas line connected between said source of respiratory gas and said vaporizer unit for carrying a first flow of respiratory gas from the source of respiratory gas through the vaporizer unit, said vaporizer unit adding a specific amount of anaesthetic to said first flow of respiratory gas;a connecting body disposed downstream of said vaporizer unit;a second gas line connected between said source of respiratory gas and said connecting body for carrying a second flow of respiratory gas from said source of respiratory gas past said vaporizer unit, said first and second flows being combined in said connecting body to form a total flow of respiratory gas, with a sum of said first flow plus said second flow forming said total flow;a first flow regulator means for regulating said total flow of respiratory gas;a second flow regulator means connected for interacting with said second gas line to regulate said second flow of respiratory gas;means for obtaining a reference value for said first flow of respiratory gas; andcontrol means for controlling said second flow regulator means for causing said second flow or respiratory gas to be substantially equal to a difference between said total flow of respiratory gas and said reference value.