What way has technology improved the way an army medic controls the airway of a casualty?

I am doing a research paper and need an example i can research about. I already have one which is the KING LT. I need relativley new technology (present to 5 years ago).

There is the LMA. But you can only put than it an unconscious person. If they are breathing on their own it will keep the airway open. If they are not breathing on their own you will have to bag them. If you have more than one or two casualties, you will have to triage and let this one go.