4. XSTAT 30

image via engineerpal

image via engineerpal

The XSTAT 30 syringe was approved for battlefield use in 2014 and it was successfully used to treat a gunshot wound for the first time in May. It essentially works by filling the wound with small, antimicrobial sponges that staunch bleeding and help fend off infection. A civilian version of XSTAT was cleared for use by the Food and Drug Administration last year.