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Medicine Science

Material Made From Crustaceans Could Combat Battlefield Blood Loss 76

MTorrice writes: A foam composed of a polymer derived from crustacean shells may prevent more soldiers from falling victim to the most prolific killer on the battlefield: blood loss. Pressure is one of the best tools that medics have to fight bleeding, but they can't use it on severe wounds near organs. Here, compression could do more harm than good. First responders have no way to effectively dam blood flows from these non-compressible injuries, which account for the majority of hemorrhagic deaths. The new foam could help stop bleeding in these types of injuries. It relies on chitosan, a biopolymer that comes from processed crustacean shells. By modifying the chitosan, the developers gave the material the ability to anchor blood cells into gel-like networks, essentially forming blood clots. The researchers dispersed the modified chitosan in water to create a fluid they could spray directly onto noncompressible wounds.
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Material Made From Crustaceans Could Combat Battlefield Blood Loss

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  • QuikClot and Celox (Score:4, Interesting)

    by turkeydance ( 1266624 ) on Sunday March 29, 2015 @06:07AM (#49364185)
    already do this...with the same ingredients. just don't be allergic to shellfish.
    • by DamonHD ( 794830 ) <d@hd.org> on Sunday March 29, 2015 @06:24AM (#49364213) Homepage

      Is there a significant antigen left in this foam?

      I know people can be allergic to almost anything, but this looks to me like only relatively simple innocuous compounds remain in the foam.

      The point being on the battlefield, what proportion of people would be killed by this from anaphylaxis (say) rather than saved by it?

      Rgds

      Damon

      • If it's between a slight possibility of an allergic reaction or a high likelihood of bleeding to death, the choice is simple. The prevalence of shellfish allergy seems to be under 2% anyway. In that light, it might be good to keep this stuff in public buildings next to the AED (if the shelf life isn't too short). More people die from blood loss after a bad cut than you might think, because it takes time for paramedics to arrive and few people know how to properly stanch a wound.
        • by Gryle ( 933382 )
          US Army personnel with allergies to a particular medication are required to wear a red medical ID tag along with their normal set of ID tags. If this technology becomes common place, I expect those with crustacean allergies will be required to wear a red tag same as those with pencilin allergies.
          • by bill_mcgonigle ( 4333 ) * on Sunday March 29, 2015 @01:10PM (#49365599) Homepage Journal

            If this technology becomes common place, I expect those with crustacean allergies will be required to wear a red tag same as those with pencilin allergies.

            It might even become practice to use it anyway and follow up with a treatment for the anaphylaxis, if the bleeding is severe enough. People can survive shellfish reactions with management - severe internal bleeding, not so much.

    • QuikClot is a powder that activates the appropriate agents in your body to jumpstart the clotting process. It is not perfect and it doesn't work well with heavy bleeding or anyone who is on blood thinners. Additionally, since it is directly used to create the clot you can't remove the shit without removing the clot... which will restart the bleeding. However that last point isn't that critical as you should only be removing the clot when in an appropriate medical environment to treat the wound.

      This form wou

  • by Anonymous Coward

    lol. Wow. This is *OLD* news. The military has been using this technology for over 20 years now.

  • by Anonymous Coward on Sunday March 29, 2015 @07:16AM (#49364309)

    Yes, shellfish based bandages have been around for the last decade, yes. No, this isnt the same as that. This is a spray, not a bandage. No pressure necessary, just spray the wound like windex and you're good. This is a major advance and you lot are "lol omg seen this 10 years ago lolslashdot",

    • by redback ( 15527 )

      same substance, new delivery method.

      i bet you could kill someone with an injection of this stuff.

      • by itzly ( 3699663 )

        I bet you could kill someone with an injection of this stuff.

        Same is true for many things.

        • For sure. Air is ordinarily very benign and quite necessary to sustain human life, but not so much when it's injected into a vein.
    • Read the article? I get the feeling sometimes that people here don't even bother to read the summary.

      And sometimes, not even the title.

    • This is a major advance and you lot are "lol omg seen this 10 years ago lolslashdot",

      It makes sense if you accept the premise that their purpose for being here is to feel smug and superior, not to get it right.

  • Hooray! I'm helping!
  • Here is another material that has been used to stop bleeding. Its been around for a longer time.
    "Bleed-X Vet Hemostatic Powder originates from over a decade of research and clinical use in the human market. Since 2001, Medaforâ(TM)s patented Microporous Polysaccharide Hemosphere (MPH) technology has been saving lives in both humans and animals- clinically proven to be a superior method to control surgical and topical hemorrhage in over 2 million human applications.

    Bleed-X Vet is indicated in surgical,

    • I've been using a nanotech solution whereby nanobots congregate and join together at the wound site in response to a protein cue given off by damaged blood vessel. Since the nano-bots are small and vaugely plate-shaped I've been thinking of calling them plale-lettes.

  • Back in the 1970's a friend who had been a medic told me about a spray clotting agent that was then saving lives called Topostat or Topistat. He found somewhere to buy it commercially and a few of up pitched in and got some spray cans. I never use it for more than patching up a scraped knee, but it seemed to be great stuff. Scrape you knee, spray on this stuff, and you had an instant scab to stop further bleeding.

    I've never seen it again since, and even a search of the Internet seems to be completely ignor

  • crustaceans are sea-gerbils!

  • I believe this was reported in Slashdot years ago. Chitosan based bandages are available on Amazon. I carry one in the first aid kit on the motorcycle. Is this Retread Sunday?

  • Let's beat drums with our obliterated lobster limbs. Is this a Verhoeven parody of "news" or what?
  • This gives crab people a whole new meaning!

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