TEC 6 Vaporiser
Liquid desflurane is heated to 39 degrees C (above its boiling point of 22.8 degrees C) and the resultant vapour passes through a variable resistance controlled by a differential pressure transducer, through another resistance adjusted by the anaesthetist, to join the flow of bypass gas at the outlet. The differential pressure transducer compares the pressures in the bypass with that of the vaporised desflurane, altering the variable resistance as required to produce a known output concentration.

With base, front and sides removed the complex wiring is obvious, as is the vaporising chamber itself and the electrical mains connection and back up battery in the base.

Designed by Ohmeda (ex Cyprane) in Yorkshire circa 1992 but production moved to Madison WI USA in 1996.

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