The output of an 'empty' Tec 3 vaporizer.
The output of 30 Tec 3 vaporizers (halothane, enflurane and isoflurane) was studied, starting at the point where no liquid was visible in the content window. At 6 l.min-1 and 1% v/v initial output, consistent delivery was on average maintained for in excess of 90 (range 55-120) min. Thereafter, output declined rapidly. At the flows and concentrations studied there is a significant reserve in the vaporizing chamber, but it is likely that when higher flows and concentrations are used this reserve may be substantially reduced.
Graham
S G
SG
University Department of Anaesthesia, Leicester Royal Infirmary, University Close.
Szafranski
J
J
Bland
D
D
Langton
J A
JA
D000769:Anesthesia, Inhalation / Q000295:instrumentation*; D004737:Enflurane / Q000008:administration & dosage; D004867:Equipment Design; D006221:Halothane / Q000008:administration & dosage; D006801:Humans; D007530:Isoflurane / Q000008:administration & dosage; D009330:Nebulizers and Vaporizers; D013997:Time Factors
D004737:Enflurane; D007530:Isoflurane; D006221:Halothane