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Abstract

Apparatus for providing control of infusion delivery using conventional infusion fluid bags includes an air bag which is pressurised by a pneumatic pump. A digital camera or imaging device is able to analyse drops passing through a drop chamber, by capturing an image of the drop as it passes through the drop chamber. The output of the imaging device is fed to an image processor which calculates the volume of the captured drop using the number of pixels in the image. An infra red detector detects each time a drops passes through the drop chamber, and the outputs of the both the image processor and the infra red detector are passed to a master controller. The master controller controls the fluid delivery process by counting the number of drops passing through the drop chamber and controlling a flow brake to achieve the required flow rate.

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