Tube Position Verification Instrument
The tube position verification instrument consists of a flexible rubber ball and a connector to attach to the endotracheal tube. To verify whether the tube has been placed correctly, the rubber ball is squeezed to allow its air to escape before attaching it to the tube. If the ball fills with air again, the tube has been placed correctly. If it does not, the tube is not in the trachea, but rather in the oesophagus and needs to be removed immediately.