Stopping blood loss on the battlefield is one of the key actions medics can take to prevent mortality. The tourniquet and various hemostatic agents have greatly improved the ability of the medics to contain blood loss, but control of internal bleeding continues to be a challenge. When a sponsor came to Draper in late 2009 requesting a portable, easy to use device to address this need, our engineers reacted quickly to deliver a solution. They built on existing Draper-developed technology to create a small, lightweight insufflator that can inflate the abdomen of an injured warfighter within a minute, compressing the bleeding vessels, and staunching the internal bleeding. The device automatically inflates to a preset pressure and will maintain it for up to 4 hours. This stabilizes blood loss until the soldier can be seen by a surgeon. Preclinical testing of the insufflator prototype is currently underway at Massachusetts General Hospital. Following successful testing, Draper will work with our military sponsors to create a version of the device suitable for human use and begin multiphase clinical trials to support an application for FDA approval. The goal is to deploy systems in the field within 3 years.