摘要
作为呼吸机最基本的一种呼吸模式,压力控制通气的一个难题是如何保持平稳的呼吸压力平台。为了解决这一问题,本文引入呼吸机与肺部仿真模型,研究不同患者的压力控制通气策略。仿真结果表明,压力控制通气的吸气策略与患者肺时间常数存在一定联系,通过选取合适的控制参数,可以保持平稳的呼吸压力平台。这对呼吸机控制参数的选用和对呼吸机通气控制的进一步研究具有一定参考价值。
As a basic mode of ventilator,one problem of pressure controlled ventilation is how to keep smooth platform of breath pressure.This paper introduces the models of ventilator and lung,then studies the strategy of pressure controlled ventilation for different patients to solve this problem.The simulation results show that there is a certain link between the inspiratory strategy of pressure controlled ventilation and the lung time constants of patients.The smooth platform of breath pressure can be kept through choose the appropriate control parameters.This work can give good advices to the selection of ventilator control parameters and the further study of ventilator control.
出处
《计算机与现代化》
2010年第9期179-181,190,共4页
Computer and Modernization
关键词
呼吸机
压力控制通气
肺时间常数
ventilator
pressure controlled ventilation
lung time constant
