国际麻醉学与复苏杂志
國際痳醉學與複囌雜誌
국제마취학여복소잡지
INTERNATIONAL JOURNAL OF ANESTHESIOLOGY AND RESUSCITATION
2012年
5期
308-313
,共6页
吸气末平台%机械通气%数学模型%计算机仿真
吸氣末平檯%機械通氣%數學模型%計算機倣真
흡기말평태%궤계통기%수학모형%계산궤방진
End-inspiratory plateau%Mechanical ventilation%Mathematical model%Computer simulation
目的 建立吸气末平台(end-inspiratory plateau,EIP)通气物理过程的数学模型,并进行计算机仿真验证.方法 运用流体力学的基本定理,对吸气期、EIP期、呼气期和呼气末期各阶段的物理过程进行力学分析并得出函数表达式.将其进行计算机仿真得到理论模拟曲线,并与相同条件下的临床实测曲线进行比较.结果 得到机械通气过程中流速(v)、流量(Q)、肺容积(Vt)、肺泡压(PA)、气道压(Paw)随时间(t)变化的函数表达式以及各函数相应的计算机模拟曲线.仿真系统的模拟曲线与同条件下的临床实测曲线非常逼近. 结论 数学模型成立,计算机仿真可再现部分通气机的临床工作曲线.
目的 建立吸氣末平檯(end-inspiratory plateau,EIP)通氣物理過程的數學模型,併進行計算機倣真驗證.方法 運用流體力學的基本定理,對吸氣期、EIP期、呼氣期和呼氣末期各階段的物理過程進行力學分析併得齣函數錶達式.將其進行計算機倣真得到理論模擬麯線,併與相同條件下的臨床實測麯線進行比較.結果 得到機械通氣過程中流速(v)、流量(Q)、肺容積(Vt)、肺泡壓(PA)、氣道壓(Paw)隨時間(t)變化的函數錶達式以及各函數相應的計算機模擬麯線.倣真繫統的模擬麯線與同條件下的臨床實測麯線非常逼近. 結論 數學模型成立,計算機倣真可再現部分通氣機的臨床工作麯線.
목적 건립흡기말평태(end-inspiratory plateau,EIP)통기물리과정적수학모형,병진행계산궤방진험증.방법 운용류체역학적기본정리,대흡기기、EIP기、호기기화호기말기각계단적물리과정진행역학분석병득출함수표체식.장기진행계산궤방진득도이론모의곡선,병여상동조건하적림상실측곡선진행비교.결과 득도궤계통기과정중류속(v)、류량(Q)、폐용적(Vt)、폐포압(PA)、기도압(Paw)수시간(t)변화적함수표체식이급각함수상응적계산궤모의곡선.방진계통적모의곡선여동조건하적림상실측곡선비상핍근. 결론 수학모형성립,계산궤방진가재현부분통기궤적림상공작곡선.
Objective To establish the mathematical model for ventilation of the physical process of end-inspiratory plateau (EIP) and identify the computer simulation. Methods The physical process of EIP was divided into inspiratory phase,EIP phase,expiratory phase and end-expiratory phase,which was analyzed to deduce mathematical functions by hydromechanics theory.Computer simulation was carried out on the mathematical model and the simulated curves were compared with those of clinical monitoring. Results The mathematical functions and simulated curves of the flow velocity (v),flow rate (Q),pulmonary volume (Vt),alveolar pressure (PA) and airway pressure (Paw) changing along with the time (t) during the mechanical ventilation process have been obtained.The simulated curves were similar to the working curves from clinical monitoring.Conclusions The mathematical model for ventilation of physical process of EIP was established successfully and the computer simulation can reproduce the clinical working curves of some kinds of ventilators.
