Gambro-Engstrom Eas 9010麻醉机电控定量注射蒸发器的准确度判定

Evaluation of an electronic vaporizer: the Gambro-Engstrom Eas 9010

目的 评价Gambro EngstromEas 90 10麻醉机采用的全新蒸发原理的蒸发器的准确度。方法 用芬兰产CapnomacDatexAS/ 3多功能麻醉气体监护仪监测不同气体流量 ,不同气道压力、不同载气配比及快速充氧时对蒸发器输出浓度的影响。结果 该麻醉蒸发器在气体流量小于0 5L·min-1或设置浓度大于 8%时 ,输出浓度小于设置浓度 (P <0 0 5 ) (前者误差可通过采用自身监测系统避免 ) ,除此之外 ,该蒸发器输出浓度不受气体流速、气道压力、载气配比及快速充氧的影响。结论 该新型电控定量注射系统蒸发器可安全地用于低流量、最低流量及全紧闭麻醉。

Objective To evaluate the accuracy of performance of Engstrom Eas 9010 vaporizerMethods Using Datex Capnomac AS/3 monitored the output of Gambro-Engstrom Eas 9010 anesthetic agent vaporizer under various situations l Determing the output of vaporizer at different gas flow rates of 0 5,1 0,2 0,4 0,6 0 and 8 0 L·min -1 2 The effects resulting from up stream oxygen flushing 3 The effects due to additional nitrous oxide as carrier gas 4 Effects of different airway pressure at the same flow rate Results 1 The output of the vaporizer was highly correlated with the dial setting at various gas flow rate except dial setting was more than 8% and gas flow rate less than 0 5L·min -1 2 Upstream oxygen flush could not decrease the concentration remarkably 3 The output of the vaporizer was not affected by additional carrier gas 4 The effect on vaporizer output was not remarkable under different airway pressure at the same flow rate Conclusions The anesthetic vaporizer principle used in the Gambro-Engstrom Eas 9010 apparatus is innovative Electronically controlled vapor quanta injection is used with safety feed back Its accuracy can't be influenced by temperature,pressure and carrier gas indicating to be safely applied to the low or even minimal flow anesthesia