中国医疗设备Issue(1)：51-54,4.DOI:10.3969/j.issn.1674-1633.2016.01.013
NPB840呼吸机吸气压力触发与吸气流量触发比较
Comparison of the Triggers for the Inspiratory Pressure and Inspiratory Flow in NPB840 Ventilator
郑吉锋 1白玫1
作者信息
- 1. 首都医科大学宣武医院医学工程处，北京 100053
- 折叠
摘要
Abstract
Objective To understand the difference between the pressure and the lfow velocity as well as the trigger time of the NPB840 ventilator in different modes of positive-end expiratory pressure (PEEP) under the suction pressure and the inspiratory lfow.Methods Connect the FLUKE VT-Plus lfow analyzer series to the measured ventilator and then to the simulated lungs with the Norway active system. Through the active simulation of lungs and patients’ spontaneous breathing, the analyzer acquisited parameters and waveform from the ventilator triggered by spontaneous breathing.Results Under the same mode of PEEP, the trigger for the inspiratory pressure is slightly higher than that of the inspiratory lfow. The lfow rate of the same PEEP is greater than that of the inspiratory pressure. When the PEEP is 0, the trigger time between the pressure and the lfow rate is different. The time difference decreased with the increase of PEEP value. When the PEEP is 15 cmH2O, the trigger time between the inspiratory pressure and the lfow rate is similar.Conclusion After testing the difference between the pressure and the lfow velocity, as well as the difference of the trigger time between the inspiratory pressure and lfow rate in the NPB840 ventilator under different modes of PEEP, it is proved that the sensitivity of NPB840 ventilator under the lfow mode is superior to that under the mode of of inspiratory pressure.关键词
呼吸机/吸气压力触发/吸气流量触发/呼气末正压Key words
ventilator/inspiratory pressure trigger/inspiratory flow trigger/positive-end expiratory pressure分类
医药卫生引用本文复制引用
郑吉锋,白玫..NPB840呼吸机吸气压力触发与吸气流量触发比较[J].中国医疗设备,2016,(1):51-54,4.
