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. <EOS>