A catheter for facilitating intracardiac atrial defibrillation that includes an elongated flexible member that has a proximal end and a distal end is disclosed. The broken glass pieces are preferably formed from a specifically-formulated, tempered glass which, after formation, is broken and then sifted and washed so as to remove any slivers or debris. Suction means having an inlet associated with the bristle portion evacuates waste from the oral cavity of a user for disposal. A cable means is coupled to the energy delivery device means. The information source could be a database storing information of employees of a corporation, a groupware application storing the user’s schedule, or the user’s task list. In one example, a calibrated GR channel gain for red rows and a calibrated GB channel gain for blue rows are determined and are a function of valid pixels only in each respective region.