We have posted some videos to show the R4 device in action!
As we validated the R4 prototype, we noticed that some practitioners squeeze the bag of the bag valve mask ventilator very abruptly. This causes a rapid, sharp pressure rise, as opposed to a smooth, gentle pressure rise. For a newborn struggling to take its first breath, we want to inflate and expand the lungs gently and gradually.
To help encourage gentle, smooth ventilation, we have implemented a new feature in our feedback algorithm. It now provides instant feedback if the breath is too rapid/sudden. This will help healthcare workers learn, practice and reinforce all aspects of proper skill, and give them the confidence to act decisively in an emergency situation.