A catheter system comprising: a catheter handle extending along a longitudinal axis from a first end to a second end, the handle having a hollow tubular portion extending through the handle, a fitting proximate the first end, a hemostatic fitting proximate the second end and a side port disposed between the first and second ends (107,109); a catheter body that extends from the catheter handle along the longitudinal axis from a proximal catheter end to a distal catheter end, the catheter body including an articulation joint interposed between portions of the catheter body proximate the distal end; a movable catheter sheath having a portion surrounded by an internal surface of the catheter body and configured for movement along the longitudinal axis with respect to the catheter body, the catheter sheath extending through the catheter handle; an inner catheter shaft having a portion surrounded by an internal surface of the movable catheter sheath, the inner catheter shaft having an expandable frame attached proximate an end of the inner catheter shaft, the expandable frame comprising a plurality of self-expanding arms (123a-f) disposed radially about the longitudinal axis, the inner catheter shaft including a terminal end proximate the distal end, the terminal end having a plurality of slots extending along the longitudinal axis to allow the self-expanding arms (123a-f) to extend through respective slots along the longitudinal axis; a cannula having a portion surrounded by an internal surface of the inner shaft and disposed for movement with respect to the inner shaft, the cannula configured to extend to the handle; and a guidewire having a portion surrounded by an internal surface of the cannula, the guidewire configured to extend through the cannula to the handle. a catheter handle extending along a longitudinal axis from a first end to a second end, the handle having a hollow tubular portion extending through the handle, a fitting proximate the first end, a hemostatic fitting proximate the second end and a side port disposed between the first and second ends (107,109); a catheter body that extends from the catheter handle along the longitudinal axis from a proximal catheter end to a distal catheter end, the catheter body including an articulation joint interposed between portions of the catheter body proximate the distal end; a movable catheter sheath having a portion surrounded by an internal surface of the catheter body and configured for movement along the longitudinal axis with respect to the catheter body, the catheter sheath extending through the catheter handle; an inner catheter shaft having a portion surrounded by an internal surface of the movable catheter sheath, the inner catheter shaft having an expandable frame attached proximate an end of the inner catheter shaft, the expandable frame comprising a plurality of self-expanding arms (123a-f) disposed radially about the longitudinal axis, the inner catheter shaft including a terminal end proximate the distal end, the terminal end having a plurality of slots extending along the longitudinal axis to allow the self-expanding arms (123a-f) to extend through respective slots along the longitudinal axis; a cannula having a portion surrounded by an internal surface of the inner shaft and disposed for movement with respect to the inner shaft, the cannula configured to extend to the handle; and a guidewire having a portion surrounded by an internal surface of the cannula, the guidewire configured to extend through the cannula to the handle.