A catheter comprising: an elongated tubular portion having a proximal end and a distal end; a plurality of wires extending between said proximal end and said distal end; a circuit system located near the distal end of the elongated tubular portion, the circuit system comprising: a hypotube located at the distal end of said elongated tubular portion; a positive terminal bank and a negative terminal bank formed by the hypotube; and a plurality of electrical components (26A-26D) that are each connected to the positive terminal bank and the negative terminal bank so as to power each of the plurality of electrical components (26A-26D); wherein the hypotube, the positive terminal bank, the negative terminal bank, and the plurality electrical components (26A-26D) are configured into a cylindrical shape; and an interface connectable to said proximal end of said elongated tubular portion to supply power to plurality of electrical components, the interface including a positive voltage source and a negative voltage source, wherein the positive voltage source is electrically connectable to the positive terminal bank, and the negative voltage source is electrically connectable to the negative terminal bank, via two of said plurality of wires. an elongated tubular portion having a proximal end and a distal end; a plurality of wires extending between said proximal end and said distal end; a circuit system located near the distal end of the elongated tubular portion, the circuit system comprising: a hypotube located at the distal end of said elongated tubular portion; a positive terminal bank and a negative terminal bank formed by the hypotube; and a plurality of electrical components (26A-26D) that are each connected to the positive terminal bank and the negative terminal bank so as to power each of the plurality of electrical components (26A-26D); wherein the hypotube, the positive terminal bank, the negative terminal bank, and the plurality electrical components (26A-26D) are configured into a cylindrical shape; and an interface connectable to said proximal end of said elongated tubular portion to supply power to plurality of electrical components, the interface including a positive voltage source and a negative voltage source, wherein the positive voltage source is electrically connectable to the positive terminal bank, and the negative voltage source is electrically connectable to the negative terminal bank, via two of said plurality of wires. a hypotube located at the distal end of said elongated tubular portion; a positive terminal bank and a negative terminal bank formed by the hypotube; and a plurality of electrical components (26A-26D) that are each connected to the positive terminal bank and the negative terminal bank so as to power each of the plurality of electrical components (26A-26D); wherein the hypotube, the positive terminal bank, the negative terminal bank, and the plurality electrical components (26A-26D) are configured into a cylindrical shape; and an interface connectable to said proximal end of said elongated tubular portion to supply power to plurality of electrical components, the interface including a positive voltage source and a negative voltage source, wherein the positive voltage source is electrically connectable to the positive terminal bank, and the negative voltage source is electrically connectable to the negative terminal bank, via two of said plurality of wires.