Patent ID: 8412306

Claim:
A medical system comprising: a flexible catheter having a proximal end and a distal end and comprising: a flexible tubular wall having an interior surface defining a lumen extending along a longitudinal axis and an exterior surface coaxially exposed outside the flexible tubular wall and separated from the interior surface by a wall thickness, between the distal end and the proximal end; an antenna coil device coupled to the exterior surface adjacent the distal end of the flexible catheter, the antenna coil device having a tracking portion and an imaging portion, the tracking portion providing localized spatial sensitivity relative to the imaging portion, the tracking portion and imaging portion connected together to transmit a combined signal, the combined signal simultaneously comprising a tracking signal and an imaging signal, the combined signal being of a character so that the imaging signal may be distinguished from the tracking signal after their combination at an imaging system to generate an image of a field-of-view forward of the distal end and to generate a location of the distal end; a conductive member electrically coupled to the antenna coil device adapted to transmit the combined signal therein, and extending to the proximal end of the flexible catheter along the exterior surface; a proximal cable trap and a distal cable trap electrically coupled to the conductive member, wherein the proximal cable trap and distal cable trap are located on the exterior surface of the flexible tubular wall, the proximal cable trap and a distal cable trap adapted to suppress the formation of standing voltage waves at the conductive member; whereby the lumen may pass a therapeutic device therein from the proximal end to the distal end without interference from the cable trap or antenna coil device.