A device used for preventing arcs in an electric circuit contains an output source terminal, an input load terminal, a suppressor coil, and a shunt circuit. A display processor generates data representing a single composite display image including, a first image area showing a first image of a portion of patient anatomy acquired using a first type of imaging device, a second image area showing a second image of the portion of patient anatomy acquired using a second type of imaging device different to the first type. Each bingo game automatically enrolls active players in one or more bonus games, exemplified by \u201c4 corners,\u201d where the amounts to be given away to players as bonuses are calculated to be equal, over time, to the amount taken in from players buying bingo cards. 1 to 70 parts by weight of a bulky monomer. The method may be stored in a memory and executed as instructions by a microprocessor. This allows for retraction and extension of a retractable fixation helix, and for further attachment or detachment of a fixation helix to adjacent tissue.