The US Food and Drug Administration has approved a ground-breaking device that can plug gunshot wounds in 15 seconds using a special sponge-filled mechanism. The device is called ‘XSTAT Rapid Hemostasis System’, and is an expandable, multi-sponge dressing that can be used to stop life-threatening bleeding from wounds. The device was cleared for the battlefield last year, but is now allowed to be used on civilians. credits: wshh
They're coated with a blood clotting agent, and are radiopaque as well, but are only meant for wounds in certain anatomical areas.