emergency extra breath diy

This interesting device inspired me to

share one thought

(LifeVac)

In emergency-CPR we breathe into our own exhaled gases. It acceptable, since there still some oxygen left, but I am sure the fresh air will perform much better.

1 So such a device could be easily be updated to be such a pump (but I think work that way by itself).
However, I assume we don't have time and devices when most needed. So, it could be a good idea to try your own vacuum: just suck up fastly all the air from the patient, but don't forget to put some cloth between your mouths (to prevent the danger for yourself). It could be combined with two people approach: 1st  do the Heimlich 2nd sucks.

2 When we do CPR, and there is a second person to help we could inhale every second breath with fresh air by "bagging":

Inflate a plastic bag, hold it to the mouth and push into the mouth. A cut bottom off plastic cup could help to keep the shape. That method of cause needs to be tested and trained...


Inhale 21%, exhale 13-16% oxygen. Maybe not that much. Than quick double breath just before blowing could increase chances a bit.