Ergonomically designed for ease of handling, the Polaris X Catheter is capable of producing accurate and high quality electrograms. For use in the left atrium, the catheter uses specific mapping specifications and a unique piston design to provide maneuverability, precision, and control. With the ability to recognize a curve plane, a dimple housed on the device allows enhanced tactile usage for directional steering capabilities. For accessing difficult areas, such as the coronary sinus, the Polaris X Catheter' ergonomic handle reduces fatigue, allowing for more comfort for the user. It skilfully recognizes the necessity for curve adjustments on a continual basis and is highly accurate in its performance procedure.