An electrode support structure comprises a guide body having at its distal end
a flexible spline leg. The spline leg is flexed to define an arcuate shape to facilitate
intimate contact against tissue. An electrode element is carried by the spline
leg for movement along its axis. The structure includes a control element coupled
to the electrode element. The control element remotely imparts force to move the
electrode element along the axis of the spline leg. Therefore, in use, the physician
can cause the electrode element to travel along a path that the spline leg defines,
without otherwise changing the location of the guide body.
