Development of Automated Intravenous Blood Infusion Monitoring System using Load Cell Sensor

摘要

This paper presents an automated intravenous blood infusion unit to prevent a reflux using a load cellsensor. Intravenous infusion is frequently used in the hospital for patients’ management and treatments such as dehydrationand surgical operations. The sensor measures initial weight (500mls) of initial content of intravenous bag and set a thresholdof 20mls or less, and then sends a signal through transmitter to receiver as an alarm indicating current state of the intravenousinfusion. This is to support monitoring system by biomedical professionals and avoid blood reflux. The sensor has a straingauge transducer that converts force into an electric signal in millivolts; two-18 pin microcontroller was deplored tomodulate signals from the transmitter to the receiver, a buzzer indicator for sound notification, and LCD display monitorscreen node station.