Portable equipment and interface to train in CPR based on monitoring the applied force

A percentage of sudden cardiac arrests that occurred outside the hospital, there were no present people to assist in, so it is necessary that people need to be easily trained with equipment capable to feedback concisely to their performance, due to apply a quality CPR may increase survival to persons who suffers cardiac arrests. This article shows the development of training CPR equipment, based on measuring the force during compressions. For the prototype, two strain gauges were used to measure force, also having an embedded system to recollect data to subsequently send them to a graphic interface to be interpretated by persons who are training. The force variation from each sensor is due to their position, therefore, an average of measurements was made, resulting in a variation range between 220 N and 340 N for the applied force during compressions. This equipment can be useful as base for data acquisition