The HeartPad^® is a versatile system intended for ablation of cardiac tissue from an epicardial (outer surface of the heart) location, while simultaneously protecting adjacent structures from unintentional ablation injury. Designed for percutaneous catheter ablation, our patented technology utilizes potent cryothermal energy coupled with a sophisticated delivery system. The intended result is dense and uniform therapeutic ablation of diseased cardiac tissue – and to accomplish this despite the barriers of thick tissue, warm cardiac blood flow and the presence of insulating fat tissue on the outer heart surface. Cryoablation may be associated with better preservation of extracellular architecture and less inflammation compared with other thermal energy sources.