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Designing a Low-Cost and Portable Infusion Pump

This document describes the prototyping of a low-cost and portable infusion pump, which is used to provide a certain dose of a drug in certain time. This device uses the principles of electronics, mechanics and fluid mechanics to drive a syringe-based infusion pump, which delivers the prescribed amount of drug in required time to the patient. The designed device can deliver drug up-to 1 ml/hour with an adjustable range. The device detects and maintains flow of drug according to the input provided by the user. The most prominent feature of the device is its ability to detect bubble in the liquid. Whenever an air bubble is detected in the device it will instantly stop the flow. It is a low-cost and portable device which can be operated on a 12-volt battery and directly from the power socket. The cost of this prototype is only about $200 which will further diminish if the units are produced on an industrial scale.