Dr. Dennis Filips, a retired surgeon in the Canadian Navy, saw a lot of traumatic wounds in Afghanistan. He figured that there had to be a better way for troops to stop blood loss immediately after a wound. So he developed a hinged clamp that snapps over a wound. Needles anchor it in place as the clamp holds the wound together and reduces blood flow. Watch a simulation video at the link.
Link and Product Page -via OhGizmo!