The Comparative Analysis of the Pathogen Pollution Before and After the Use of Two Disinfection Methods in the Respiratory Circuit of Anesthesia Machine
Objective:To compare and analyze the effects of two disinfection methods on the respiratory circuit of anesthesia machine before and after disinfection of pathogenic bacteria,so as to provide a basis for reasonable selection of daily disinfection plan of anesthesia machine.Methods:Respectively using quaternary ammonium salt disinfection sanitary wipes surface wipe disinfection and anesthesia respiratory circuit disinfection machine disinfection,samples were collected before and after disinfection at the inspiratory end,expiratory end,flow sensor and soda-lime tank inlet end of the breathing circuit of the anesthesia machine.At the same time,air control sampling was carried out in the working environment of the anesthesia machine.Finally,the bacterial culture was tested.Results:The circuit contamination rate of anesthesia machine before disinfection was 39.47%.No bacteria were detected after disinfection.It indicated that the difference between before and after disinfection was statistically significant(P<0.05).The most contaminated sites are the expiratory end and the inlet end of the soda lime tank.Bacterial detection of co-culture pathogen 22 strains,all of which were common respiratory tract pathogens in hospitals.Conclusion:It is necessary to sterilize the breathing circuit of the anesthesia machine.Both types of disinfection are effective,disinfection wipes have simple disinfection operation and good timeliness,that is,they can be used immediately.Anesthesia respiratory circuit disinfection machine disinfection and sterilization is more thorough,can realize the full sterilization of the entire internal cavity,but the time is too long.The feasibility and operability of disinfection method are important factors to ensure clinical use.The two disinfection methods can be combined according to the actual situation.
anesthesia machinerespiratory circuitdisinfection methodcontamination by pathogenic bacteria
万方数据
维普
