Hansen Medical, Inc. (Hansen Medical) develops, manufactures and sells generation of medical robotics designed for accurate positioning, manipulation and stable control of catheters and catheter-based technologies. Its Sensei Robotic Catheter System, or Sensei system, is designed to allow physicians to instinctively navigate flexible catheters with greater stability and control in interventional procedures. The Company’s focus is on electrophysiology (EP) procedures for the diagnosis and treatment of patients who suffer from abnormal heart rhythms, or arrhythmias, such as atrial fibrillation.