Air temperature recordings in infant incubators.
Air temperatures were continuously recorded inside four incubators with proportional heating control and six incubators with on/off heating cycles, during routine use. The air temperatures in the former were constant throughout, with a gradient between the roof and above-mattress air temperature not exceeding 1 degree C. In contrast, the recordings from the latter models showed a regular cyclical oscillation, the duration of the cycle varying from 14 to 44 minutes. Each incubator had a characteristic profile. The roof air temperature could vary by as much as 7-1 degrees C and the above-mattress air temperature by as much as 2-6 degrees C during the cycle. The oscillation persisted in the air temperatures recorded inside an open-ended hemicylindrical heat shield when used inside these incubators, but was markedly reduced inside a closed-ended heat shield, Carbon dioxide concentration did not increase significantly inside the latter.
D001831:Body Temperature; D002245:Carbon Dioxide / Q000032:analysis; D006361:Heating; D006801:Humans; D007186:Incubators, Infant / Q000592:standards*; D007231:Infant, Newborn; D007234:Infant, Premature; D013696:Temperature
D002245:Carbon Dioxide