Design of a closed-loop automatic mechanical ventilation controller
10.3969/J.ISSN.1672-8270.2014.11.015
- VernacularTitle:自动闭环机械通气控制器的设计
- Author:
Huimin DUAN
;
Aihua CHEN
;
Ningbo ZHAN
- Publication Type:Journal Article
- Keywords:
Closed-loop control;
Respiratory elasticity;
Partial CO2 pressure;
Mechanical ventilation
- From:
China Medical Equipment
2014;(11):43-45,46
- CountryChina
- Language:Chinese
-
Abstract:
Objective:In the clinical mechanical ventilation practice, the medical workers often set the ventilator parameters only depend on their own experience. In order to change that,we design a Closed-Loop Automatic Mechanical Ventilation Controller.Methods: Design two closed-loop control subsystems to meet the requirements of closed-loop control system. PETCO2 control subsystem used to keep the concentration of PETCO2, and another subsystem design to regulate the respiratory elasticity called PEEP control subsystem. PETCO2 control subsystem can work on its own or work with PEEP control subsystem.Results: Using this closed-loop controller, the partial CO2 pressure and respiratory elasticity of patient was regulated in real time.Conclusion:By using this closed-loop automatic mechanical ventilation controller, the respiratory elasticity was largely reduced with the adequate gas exchange. Therefore, the ventilator using this closed-loop automatic mechanical ventilation controller can improve the ventilation quality and also reduce the risk of lung injury.
