may contain an electrode or catheter port 405 it may house progressively smaller mobile telescoping parts 420 430 440 that can be pushed outward toward one or more directions each mobile part is provided with a shoulder 422 to limit its outward movement and to recruit an adjacent mobile part a tab 424 is provided to limit inward movement for an expansion in one plane element 410 may have inside it one or more mechanisms 150 fig5 a 250 fig6 b or 350 fig7 alternatively there might be single curved linkage passing along lead 20 and attached to the final electrode or catheter port site 445 as this linkage is moved by a clinician site 445 will move outward or inward and itermediate sites will follow if the movement of each site relative to the next site is limited fig1 a and 10b illustrate another embodiment of the invention in fig1 a the lead 20 is in a compacted position with elastic and resilient transverse spans 500 bent to remain inside the lumen of tuohy needle 14 spans 500 are adapted to bend to a position substantially parallel to the axis of lead 20 in the compact position once the lead is pushed beyond the needle spans 500 will move by their resiliency to their natural position as shown in fig1 b those of ordinary skill will note that the grouping of central electrode or catheter port 510 and the two nearest side electrodes or ports 520 form a tripole triport arrangement transverse to the longitudinal direction of the lead.