Modified syringe uses miniature sponges to seal a gunshot wound in 15 seconds
The XStat device is currently being vetted by the FDA, but its supporters hope it will replace gauze in treating life-threatening wounds on the battlefield
Wednesday 05 February 2014
Dealing with gunshots wounds on the battlefield is a brutal process. The only way to stop the bleeding is to stuff the wound with gauze, sometimes as deep as five inches into the body - and even then the treatment can fail, meaning the gauze has to be removed and new material put in.
Using this almost medieval process it's no surprise that haemorrhaging is still the leading cause of death for soldiers in the field.
Now a company named RevMedx has designed a device that they claim can stop a wound bleeding in just 15 seconds. This is the XStat, a modified syringe that injects tablet-sized sponges directly into the wound and that was inspired by the design of emergency tire repair kits.
“That’s what we pictured as the perfect solution: something you could spray in, it would expand, and bleeding stops,” John Steinbaugh, a US Army Special Operations medic who joined RevMedx told Popular Science. “But we found that blood pressure is so high, blood would wash the foam right out.”
So instead of foam Steinbaugh and his team experimented with sponges cut into 1-centimetre pills. Like the foam these sponges expand to fill the wound cavity, but they also adhere to moist surfaces, creating enough pressure to ensure that the bleeding stops.
How the XStar works to seal a wound. Image credit: RevMedX
RevMedx experimented with animal injuries and after early successes (and $5 million in funding from the US Army) they finessed the material, using sponges made from wood pulp and coated with a blood-clotting, antimicrobial substance called chitosan. Each sponge is also marked with a special X that show up on X-rays, ensuring that none of the pills are left within the body.
Using the XStat is also incredibly simple. Medics or other soldiers would simply insert the end of the syringe into the wound and push down the plunger to inject the sponges. The device is currently awaiting FDA approval in the US, but RevMedx are already pushing ahead, developing three different sizes of the XStat to treat a variety of wounds. Each syringe is made from lightweight polycarbonate and is expected to cost around $100.
"I spent the whole war on terror in the Middle East, so I know what a medic needs when someone has been shot," Steinbaugh told Popular Science. "I’ve treated lots of guys who would have benefitted from this product. That’s what drives me."
Life & Style blogs
WWE 2K15 gameplay trailer: First look at Sting, Triple H and Daniel Bryan in next-gen graphics
iOS 8 apps and features: eight iPhone settings you need to look at after you install the update
iPhone 'Wave': iOS 8 hoax claims you can charge your iPhone in the microwave - you can't
First day of Autumn: Google Doodle celebrates 2014 Autumn equinox
What does human meat taste like?
Scotland could still declare independence – even without referendum, says Alex Salmond
Scottish referendum results: Cross-party consensus collapses amid Tory-Labour spat on the 'English question'
Hilary Mantel 'should be investigated by police' over Margaret Thatcher assassination story, says Lord Bell
Scottish independence: David Cameron is becoming the 'George Bush of Britain'
Plebgate MP Andrew Mitchell called officer a 'little s**t', claim court documents 'exposing ex-Chief Whip's 'record of abusing police'
Archbishop of Canterbury admits doubts about existence of God
- 1 Hilary Mantel 'should be investigated by police' over Margaret Thatcher assassination story, says Lord Bell
- 2 Rihanna 'nude pictures' claims emerge on 4Chan as hacking scandal continues
- 3 Kim Kardashian 'nude photos' leaked on 4chan weeks after Jennifer Lawrence scandal
- 4 'F*ck it, I quit': KTVA reporter Charlo Greene quits live on air in spectacular fashion
- 5 Hitler’s former food taster reveals the horrors of the Wolf’s Lair
iJobs Gadgets & Tech
£40000 - £45000 Per Annum + benefits: Clearwater People Solutions Ltd: Project...
£400 Per Day: Clearwater People Solutions Ltd: Our client based in Central Lon...
£60000 - £65000 per annum: Sauce Recruitment: A globally successful media and ...
competitive + benefits: Sauce Recruitment: Are you looking for your next role ...