Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation
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Zhongguo Yi Liao Qi Xie Za Zhi · Jul 2005
[A monitoring technique in detecting the depth of anesthesia by bispectral index].
At the present time, a kind of monitoring technology assuring highly effectual anesthesia is urgently required in the clinical practice. Electroencephalogram (EEG) assumes a dominant position in the current research of the depth detection of anesthesia. ⋯ The bispectral index is a compound parameter which is composed of time domain, frequency domain, and high order spectral subparameters of the electroencephalograph. This nonlinear compound calculation method is worth research and is of great significance to the development of a new monitor of closed-loop control of anesthesia.
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Zhongguo Yi Liao Qi Xie Za Zhi · Jul 2005
[Research on metrological verification and the development of the verification equipment for digital electrocardiographs].
In order to guarantee that digital electrocardiographs with an adequate accuracy and reliabity are available for measurements in clinical practice, it is very important to determine the metrological characteristics, methods and to develop the equipments for verification. This paper elaborates the basic functions, specification, schematic drawing and key techniques of calibration equipments as well as test items for digital electrocardiographs.