一种呼吸机呼出废气处理装置的设计

Design of a Ventilator Exhaled Exhaust Gas Process System

目的:本文设计了一种自动控制的呼吸机呼出废气处理装置,该处理系统能在不影响患者吸气呼气的情况下,将病患呼出的气体排入医院中心吸引系统,从源头上减少感染。方法:利用STC12C5201AD型微处理器、呼气缓冲盒、压力传感器、真空泵和紧急呼气阀等组件进行系统电路和气路设计。结果:经测试,该装置可以在不影响病人接受机械通气治疗的前提下,将其呼出废气排入医院中心吸引系统。结论:该呼吸机呼出废气处理装置能有效防止病人呼出废气污染病房,降低交叉感染发生率,系统具有操作便捷、实用性强、安全性高等特点。

Objective:In this paper,an automatically controlled ventilator exhaled waste gas treatment device is designed.The treatment system can discharge the gas exhaled by the patient into the hospital central attraction system without affecting the patient’s inhalation and exhalation,and reduce the infection from the source.Methods:The system circuit and pneumatic circuit design are carried out by using components such as STC12C5201AD microprocessor,exhalation buffer box,pressure sensor,vacuum pump and emergency exhalation valve.Results:The system can discharge the ex-haled exhaust gas into the hospital central attraction system without affecting the patient’s me-chanical ventilation treatment.Conclusions:The exhaled exhaust gas treatment device of ventilator can effectively prevent the patient from exhaling the exhaust gas to pollute the ward and reduce the incidence of potential cross infection.The system has the characteristics of convenient operation,strong practicability and high safety.