A Simple Design of Sterilizer Equipment for Infant Incubator Using Ultraviolet Germicidal Lamps

Infant incubator is an electromedical device used to treatment for a newborn which has the possibility to become a place of spread infection. Therefore, this study aims to design a simple infant incubator sterilizer as an effort to reduce the level of nosocomial infection in the neonatal intensive care unit. The simple design of infant incubator sterilizer has been made using UV germicidal lamps, arduino mega, remote control, and equipped with a sterilization time setting. The device was tested under laboratory conditions, with observational parameters consist of sterilization time, a display showing the countdown time of sterilization and the hour meter of the ultraviolet lamp, as well as remote testing, to turn on/off the device. Furthermore, the effectiveness of sterilization was tested on three types of gram-positive bacteria namely Escherichia coli, Staphylococcus aureus, and Bacillus cereus with sterilization time variations of 30, 60, 90 and 120 min. The result of this research is a prototype of sterilizer equipment using an ultraviolet germicidal lamp that can be applied to infant incubators. The effectiveness of sterilization using this equipment showed a trend gradually decrease the number of bacteria.