The mechanical design follows MIT E-Vent two-fingers design
The basic concept consists of two arms that gently close in sync to compress the bag. This is coupled with a closed-loop control system with the following design specifications:
The A3B is compatible with existing manual resuscitators bag sizes. The key design criteria are to provide mechanical adjustment to set up the A3B to optimal adjustment points on each bag that provide support and lateral constraint but do allow the bag to flex as it is compressed. The bag should be centered laterally and vertically between the grippers.