April 1975
·
104 Reads
Annals of Biomedical Engineering
Pumps are being used for precise, constant fluid delivery. Many pumps of reasonable cost require tedious calibration by serial changing of dial-settings, observing with a stopwatch the time for delivery of a certain volume of fluid, and then calculating the rate for each setting. A simpler method has been developed whereby, from a graph calculated from observed rate at only two dial-settings, the dial is set to give anapproximate flow-rate. Then, from a table previously calculated from a mathematical formula, the number of observed drops at the bedside is adjusted by the dial to give anexact flow-rate.