We studied the disinfection effect of a new ultraviolet （UV） sterilizer and its utilization on ultrasound probe surfaces. Carrier quantitative germicidal tests, simulated on-the-spot trials, and organic substance in...We studied the disinfection effect of a new ultraviolet （UV） sterilizer and its utilization on ultrasound probe surfaces. Carrier quantitative germicidal tests, simulated on-the-spot trials, and organic substance influence tests were used to carry out experimental observation. Artificially infected probes were disinfected using the sterilizer or a germicidal lamp for comparison. The total number and types of bacteria were determined and identified. Our results demonstrated the sterilizer had the best disinfection effect among three different disinfection methods in hospital. The sterilizer has been used in a hospital setting for 2 years with no notable damage to the ultrasound probe instrument. It has the advantages of fast disinfection, high disinfection effect, and good compatibility with the ultrasound instrument, worthy of being a promoted application in medical institutions.展开更多
Affected by COVID-19,disinfection and purification in public space,such as ordinary school,had aroused wide public concern.This study presents an improved structure of nowadays medical used UV air purifier and discuss...Affected by COVID-19,disinfection and purification in public space,such as ordinary school,had aroused wide public concern.This study presents an improved structure of nowadays medical used UV air purifier and discusses about its efficiency optimization,by utilizing following processes:Firstly,establishing the inner structure of the machine on computer and setting up the boundary conditions.Secondly,employing CFD(Computational Fluid Dynamics)to proceed the simulation of air swirl and the time used,and analyzing the relationship between different parameters and time.Finally,combining optimized parameters to obtain the best time used.The optimized structure efficaciously reduces the cost of machine,making utilization in the classroom become possible.展开更多
基金supported by Hunan Health and Family Planning Commission program[C2017060]
文摘We studied the disinfection effect of a new ultraviolet （UV） sterilizer and its utilization on ultrasound probe surfaces. Carrier quantitative germicidal tests, simulated on-the-spot trials, and organic substance influence tests were used to carry out experimental observation. Artificially infected probes were disinfected using the sterilizer or a germicidal lamp for comparison. The total number and types of bacteria were determined and identified. Our results demonstrated the sterilizer had the best disinfection effect among three different disinfection methods in hospital. The sterilizer has been used in a hospital setting for 2 years with no notable damage to the ultrasound probe instrument. It has the advantages of fast disinfection, high disinfection effect, and good compatibility with the ultrasound instrument, worthy of being a promoted application in medical institutions.
文摘Affected by COVID-19,disinfection and purification in public space,such as ordinary school,had aroused wide public concern.This study presents an improved structure of nowadays medical used UV air purifier and discusses about its efficiency optimization,by utilizing following processes:Firstly,establishing the inner structure of the machine on computer and setting up the boundary conditions.Secondly,employing CFD(Computational Fluid Dynamics)to proceed the simulation of air swirl and the time used,and analyzing the relationship between different parameters and time.Finally,combining optimized parameters to obtain the best time used.The optimized structure efficaciously reduces the cost of machine,making utilization in the classroom become possible.
