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Ingenious Tourniquet Invention Saves Lives
An inflatable abdominal tourniquet recently revived two men who were moments away from bleeding to death. The device could have saved three soldiers per month between 2001 and 2010, the U.S. Army says.
By Rose PastorePosted 07.17.2013 at 1:30 pm
On June 7 in Birmingham, Ala., a blood-soaked, unconscious 41-year-old man arrived at a hospital in the passenger seat of a car. The man had lost 75 percent of his blood through two bullet holes in his armpit, and when nurses pulled him from the car at 4:50 p.m., he was less than 5 minutes away from dying.
At 4:53 p.m, a former Army surgeon and inventor named John Croushorn strapped an inflatable tourniquet around the limp man's chest. "We were all covered in blood. The nurse was applying pressure, and I told her to remove her hands," Croushorn tells Popular Science. "She said 'No, blood's just going to go everywhere again.' And I said 'It's okay, you can take your hands away.' So she did, and she was shocked. There wasn't a drop of blood coming out once the tourniquet was on." They rushed the man to the operating room, where a surgeon was able to repair the damage to his arteries.
"I would have been the doctor to tell his mom, 'I'm sorry, your son has passed away,' " says Croushorn, who has spent the past six years perfecting his wedge-shaped tourniquet invention. "That weekend, I went to check on the guy at the hospital, and I got to meet his mom and dad. His mom just walked over and gave me a big hug and thanked me for saving her son's life."
***
Croushorn's fanny pack-like tourniquet (which won a 2012 Popular Science invention award) received FDA approval in 2011 and saved its first two lives this summer. The invention solves a problem that has long haunted combat medics and emergency room doctors. When a patient suffers a junctional hemorrhage?severe bleeding from the groin, pelvis, shoulder, or base of the neck?he or she often dies because it is impossible to tie a conventional tourniquet tight enough around the torso to cut off blood flow.
"I would have been the doctor to tell his mom, 'I'm sorry, your son has passed away.' "Croushorn and co-inventors Richard Schwartz, the chairman of the emergency-medicine department at Georgia Regents University and a former combat medic, and Ted Westmoreland, a former medic with U.S. Army Special Operations, became all too familiar with junctional hemorrhages during their deployments overseas. Enemies would often target the pelvis and upper legs because body armor doesn't always cover that area, and the U.S. Army cites junctional hemorrhage as one of the most common causes of death on the battlefield.
This new tourniquet stops heavy bleeding with a clever, yet incredibly simple, mechanical design: A medic buckles the device around a patient's abdomen, over the belly button, and then tightens it by twisting a windlass. A hand pump inflates a wedge-shaped bladder, which displaces the bowel and compresses the patient?s aorta against his spine, halting all blood flow to the lower body. According to a recent Army report, a device like this tourniquet could have prevented an average of three military deaths every month between October 2001 and April 2010.
Link:
http://www.popsci.com/technology/article/2013-06/amazing-tourniquet-invention-saves-two-lives
Note: Pictures at link,
An inflatable abdominal tourniquet recently revived two men who were moments away from bleeding to death. The device could have saved three soldiers per month between 2001 and 2010, the U.S. Army says.
By Rose PastorePosted 07.17.2013 at 1:30 pm
On June 7 in Birmingham, Ala., a blood-soaked, unconscious 41-year-old man arrived at a hospital in the passenger seat of a car. The man had lost 75 percent of his blood through two bullet holes in his armpit, and when nurses pulled him from the car at 4:50 p.m., he was less than 5 minutes away from dying.
At 4:53 p.m, a former Army surgeon and inventor named John Croushorn strapped an inflatable tourniquet around the limp man's chest. "We were all covered in blood. The nurse was applying pressure, and I told her to remove her hands," Croushorn tells Popular Science. "She said 'No, blood's just going to go everywhere again.' And I said 'It's okay, you can take your hands away.' So she did, and she was shocked. There wasn't a drop of blood coming out once the tourniquet was on." They rushed the man to the operating room, where a surgeon was able to repair the damage to his arteries.
"I would have been the doctor to tell his mom, 'I'm sorry, your son has passed away,' " says Croushorn, who has spent the past six years perfecting his wedge-shaped tourniquet invention. "That weekend, I went to check on the guy at the hospital, and I got to meet his mom and dad. His mom just walked over and gave me a big hug and thanked me for saving her son's life."
***
Croushorn's fanny pack-like tourniquet (which won a 2012 Popular Science invention award) received FDA approval in 2011 and saved its first two lives this summer. The invention solves a problem that has long haunted combat medics and emergency room doctors. When a patient suffers a junctional hemorrhage?severe bleeding from the groin, pelvis, shoulder, or base of the neck?he or she often dies because it is impossible to tie a conventional tourniquet tight enough around the torso to cut off blood flow.
"I would have been the doctor to tell his mom, 'I'm sorry, your son has passed away.' "Croushorn and co-inventors Richard Schwartz, the chairman of the emergency-medicine department at Georgia Regents University and a former combat medic, and Ted Westmoreland, a former medic with U.S. Army Special Operations, became all too familiar with junctional hemorrhages during their deployments overseas. Enemies would often target the pelvis and upper legs because body armor doesn't always cover that area, and the U.S. Army cites junctional hemorrhage as one of the most common causes of death on the battlefield.
This new tourniquet stops heavy bleeding with a clever, yet incredibly simple, mechanical design: A medic buckles the device around a patient's abdomen, over the belly button, and then tightens it by twisting a windlass. A hand pump inflates a wedge-shaped bladder, which displaces the bowel and compresses the patient?s aorta against his spine, halting all blood flow to the lower body. According to a recent Army report, a device like this tourniquet could have prevented an average of three military deaths every month between October 2001 and April 2010.
Link:
http://www.popsci.com/technology/article/2013-06/amazing-tourniquet-invention-saves-two-lives
Note: Pictures at link,