Viveve Medical, Inc., formerly PLC Systems Inc. (PLC), is a medical device company specializing in technologies for the cardiac and vascular markets. The Company markets its product, RenalGuard, outside the United States. The RenalGuard System consists of a console and accompanying single-use sets. RenalGuard is designed to reduce the toxic effects that contrast media can have on the kidneys. The Company's RenalGuard System is a automated measurement and matched fluid replacement device. The system consists of a fluid balancing system and a console with a delivery mechanism for sterile replacement fluid, including detectors, monitors and alarms.