MULTIPLE ELECTRODE SUPPORT STRUCTURES

摘要

An electrode support structure has spline elements (22) radiating from a center hub (90) in a circumferentially spaced relationship. The spline elements (22) include terminal ends spaced from the hub which are joined to a base member (62) to form a three-dimensional structure for supporting electrodes (38). The center hub (90) lies essentially within the envelope of the spline elements (22) to present a surface free of projections that can poke into and cause tissue trauma during use.