that location position configuration several handle types and curve configurations may be implemented using such a multiple pull wire system in certain embodiments a single control or handle is used to control the plurality of steering wires in other embodiments steering pull wires may be divided into subsets and a control or handle may be used to control a subset of wires in certain embodiments other mechanisms such as springs strings cables fiber bundles and or other thin flexible tension members may be used to position a catheter for simplicity such mechanisms are collectively referred to as steering wires herein in certain embodiments primary movement is performed in one plane while an orthogonal plane is not likely to have much movement e g not likely to be more than 20 degrees one handle or control may be configured to control the main movement of the catheter movement in the other plane may be controlled by a smaller and more discrete control for example one or more controls may include a marker or other indication of wire position midpoint in certain embodiments a control can be held in one place without the user 39 s hand applied to the handle in certain embodiments a control can be held in one place with minimal pressure applied by the user for example in certain embodiments steering wires.