MARTIN: Smart bandages could one day help diagnose and treat postoperative infections, but Gurtner says that's a ways off. The first generation of devices, he says, should start hitting the market ...

DrySee isn’t just a waterproof bandage. If liquid makes its way in, the bandage’s gauze changes colors from white to blue, letting wearers know their wound is wet. CEO Brad Greer tells CNN why ...