This is pretty cool. The CAT tourniquet is great for limb wounds, but for abdominal wounds, there wasn't much you could do other than pack the wound, apply direct pressure, and hope that advanced medical treatment could be rendered in time.
Now there is an inflatable abdominal tourniquet that has already proven to be a lifesaver.
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.
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, (Mosby's Maxim #231: Hips and Heads) 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.