Description Pyng Medical (formerly Pyng Technologies) makes an intraosseous infusion device called FAST1 (First Access for Shock and Treatment) that hydrates victims of rapid blood loss or vein collapse -- usually the result of cardiac arrest or severe trauma. The device is used by emergency medical personnel, including those in the military (specifically, the US Department of Defense), which accounts for nearly half of Pyng Medical's total units shipped. The company sells its devices in North America, Europe, and Asia.