Determining whether a convulsive emergency-room patient is having continuous epileptic seizures, not suffering from a different affliction, requires an EEG. The test normally requires trained technicians to affix a special cap and is not always performed. This disposable EEG array is so easy to use that medical staff with no extra training can fit it to the scalp in about five minutes. The device received U.S. Food and Drug Administration clearance this year; European approval is expected later in 2010.
Cost: $595 for a box of five