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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12/13/2012 12:15:11 AM
If you think violence is all the military does, you're wrong. Sure, there are gung-ho kids with guns but for the most part we are peace keepers. Around the world, there are men trying to take power and do whatever they want to the civilian populations. American's live in a bubble of freedom, and don't realize that the rights we have so quickly taken for granted (i.e. women gained rights in America not that long ago, and sadly people are still judged for what they are and not who they are [homosexuals]). In other parts of the world there are people being slaughtered, loved ones raped and beaten, and land being stolen for the sake of greed. Greed is rampant, it's a global problem that isn't going away anytime soon. That said, it's American's that so often stand in the gap and stop such atrocities. Before joining the Air Force at age 29, I was a lot like you.
Today I find myself much more educated about how government works, etc. Why? Because I got out there and got involved. Joining the military isn't about killing people for me, it's about being ready to defend my homeland, helping out my community in natural disasters, volunteerism, taking care of my family, and strengthening myself - physically, mentality, and educationally.
If you want respect beyond an anonymous poster online who doesn't really understand his or her own government, well then maybe you'll have to educate yourself about who our military really consists of. Where I work, it isn't all young dumb kids. There are doctors, lawyers, skilled mechanics, network specialists, electricians, etc.
Do yourself a favor, take a chance and get involved.
12/13/2012 12:19:06 AM
"American's live in a bubble of freedom, and don't realize that the rights we have so quickly taken for granted (i.e. women gained rights in America not that long ago, and sadly people are still judged for what they are and not who they are [homosexuals]"
Ugh, I need an edit button. Pardon me for not proofreading more.
This should say "Americans live in a bubble of freedom, and often we don't realize that the rights we quickly take for granted don't extend to a large portion of the rest of the world. I was overseas for seven months of the last year and I can tell you that women in some nations in the east live in fear of being beaten, raped, etc.
When you realize what goes on, how can you NOT want to rise up and put a stop to it? Maybe you only care about yourself.
"We basically took a look at this situation and said, this is bullshit." -- Newegg Chief Legal Officer Lee Cheng's take on patent troll Soverain
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