Expanding Foam Stops Internal Bleeding in Soldiers
December 11, 2012 2:46 PM
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The foam can reduce blood loss six-fold and boost the rate of survival at three hours post-injury to 72 percent
A new type of foam that is injected into the body could save the lives of countless soldiers
wounded on the battlefield
The U.S. Department of Defense's (DOD) Defense Advanced Research Projects Agency (DARPA) has been working with a medical company that can
help soldiers survive
internal abdominal injuries and internal hemorrhaging.
The DOD strives to accomplish what is known as the "Golden Hour," which transports a wounded soldier to a medical facility in under an hour. However, for those suffering from internal abdominal injuries and internal hemorrhaging, their chances of surviving an entire hour with a large amount of blood loss are quite slim.
Currently, there are limited solutions for temporarily taking care of internal hemorrhaging while transporting a soldier to the hospital. Internal wounds cannot be compressed, and tourniquets and hemostatic dressings cannot be used due to the need to see the actual injury.
To address this issue, DARPA started the Wound Stasis System program in 2010. Through the program, it found Arsenal Medical, Inc., which developed the new foam method.
This is how the foam works: two liquid phases are injected into the abdominal cavity. The first liquid phase is a polyol phase, and the second is a isocyanate phase. When these two liquids are combined, they two different reactions take place. The first expands the liquid to about 30 times its original volume where it fits the surfaces of the injured tissue. The second transforms the liquid into solid foam, which becomes a polyurethane polymer. It is capable of resisting intra-abdominal blood loss, and can expand through both pooled and clotted blood.
The foam, which can be quickly and easily removed by doctors once the soldier is taken to the medical facility, can reduce blood loss six-fold and heighten the rate of survival at three hours post-injury to 72 percent. This number was at 8 percent without the foam. The foam showed that it could treat a lethal liver injury for three hours before reaching medical treatment.
“Wound Stasis has been an exciting program because we were able to move unexpectedly from fundamental research to a pre-clinical proof-of-concept based on the strength of our findings,” said
, DARPA program manager. “According to the U.S. Army Institute of Surgical Research, internal hemorrhage is the leading cause of potentially survivable deaths on the battlefield, so the Wound Stasis effort should ultimately translate into an increased rate of survival among warfighters. If testing bears out, the foam technology could affect up to 50 percent of potentially survivable battlefield wounds. We look forward to working with the U.S. Food and Drug Administration on future regulatory submission of this device, and with our partners, the Army Institute of Surgical Research and Special Operations Command, on getting this technology to where it’s desperately needed on the front lines.”
DARPA gave Arsenal Medical, Inc. $15.5 million for Phase II of foam development.
Check out this video of how the foam works:
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12/12/2012 8:42:07 AM
I agree. That was a bit ethnocentric.
12/12/2012 8:26:31 PM
I agree that I worded it poorly, but what you got from it wasn't the idea I was trying to convey. I only meant that there is a very good chance that whatever country he is from has been affected by war and that America had been involved (i.e. most European countries). If not there is a great chance that whatever country he is in is plagued with corruption and violence (i.e. South American, Asian, and African countries)so he would be hypocritical talking about how violent we are. I mean I guess he could be from New Zealand, but very few countries fall into that category. I hope that makes more sense.
12/13/2012 12:25:39 AM
Or Canada. There are nations that would just as soon ignore most international politics and simply live in peace. The United States was that way once also, but we soon found that other nations around the world prefered to drag us into world wars. So now we play a more active role in trying to keep bad men from gaining larger power. Just imagine if Hitler had been ousted from power soon after he obtained it, instead of producing war machines and torturing people for years prior to WWII. Think of all the lives that would have been saved.
“Then they pop up and say ‘Hello, surprise! Give us your money or we will shut you down!' Screw them. Seriously, screw them. You can quote me on that.” -- Newegg Chief Legal Officer Lee Cheng referencing patent trolls
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