. "FIGS. 36A-C illustrate a further embodiment of an orientation platform or interface m constructed with a ball and socket assembly, wherein FIG. 36A is a perspective view of a flexible catheter assembly constructed according to one embodiment, FIG. 36B further illustrates a distal portion of the assembly shown in FIG. 36A and including four equidistantly spaced control elements, and FIG. 36C is an" . . .