1. Department of Clinical Engineering, the
First Affiliated Hospital of Anhui Medical
University, Hefei Anhui 230022, China;
2. Department of Biomedical Engineering
School of Life Science, Anhui Medical
University, Hefei Anhui 230032, China
Abstract：The functional degradation of different parts of the ventilator can result in disagreement
between the output value and the indication value, which will mislead medical staff in making wrong
decisions in clinical diagnosis and treatment. The paired test and chi-square test were used in this paper
respectively for analysis of the difference between output errors and indication errors and comparison of
the difference between the output qualified rate and indication qualified rate, which was intended to have
a profound understanding of the causes of differences. According to the statistical results, the output error
was remarkably less than the indication error (output oxygen concentration = 100%, 80%, 60%, 40% and
21% respectively, P<0.05), but there was no significant difference between two qualified rates (P=0.056).
The results showed that, as the use time of the ventilator increased, greater deviations in FiO2 (Fraction
of Inspiration O2) would be generated.
谢莹莹1，谢申菊1，张晓斌1，何文胜1,2. 呼吸机吸气氧浓度误差分析[J]. 中国医疗设备, 2016, 31(7): 119-120.
XIE Ying-ying1, XIE Shen-ju1,ZHANG Xiao-bin1,HE Wen-sheng1,2. Analysis of FiO2 Errors of the Ventilator. China Medical Devices, 2016, 31(7): 119-120.