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DARPA expanding foam used to stop internal bleeding

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DARPA funded researchers have developed a new type of expandable foam that can stop internal bleeding long enough to get the soldier off the battlefield and into surgery.  The foam chemical is injected into the chest as two separate chemicals.  When the chemicals come into contact with each other, they expand, molding itself around internal organs and filling the chest cavity before hardening and sealing off any hemorrhages. Pre-clinical trials in pigs showed an 8% survival rate using existing compression care techniques and a 72% survival rate using the newly developed foam.