Toft P, Djernes M
Department of Anaesthesia and Intensive Care, Vejle Hospital, Denmark.
Int J Clin Monit Comput. 1988;5(2):79-81. doi: 10.1007/BF02919647.
During the first period of a total closed-circuit anaesthesia the unit dose must be injected relatively often and the gas flows have to be adjusted. To help the anaesthetist, especially during this period, an electronic timer was constructed where an acoustic signal indicated the square of time when the unit dose had to be given. The construction of the electronic timer is described here.
在全封闭循环麻醉的第一阶段，单位剂量必须相对频繁地注射，并且气流必须进行调整。为了帮助麻醉师，特别是在这个阶段，制作了一个电子定时器，当需要给予单位剂量时，它会发出一个声音信号来指示时间的平方。这里描述了电子定时器的构造。
