| CPC A61N 1/0541 (2013.01) | 9 Claims |
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1. An electrode array comprising:
a housing;
a plurality of first contact electrodes exposed to an outside of the housing;
a plurality of second contact electrodes exposed to the outside of the housing;
a first wire group disposed inside the housing and electrically connected to the first contact electrodes; and
a second wire group disposed inside the housing and electrically connected to the second contact electrodes,
wherein wires of the first wire group are extended in a first direction and spaced from each other in a second direction which is perpendicular to the first direction,
wherein the plurality of first contact electrodes and the first wire group are disposed on different planes in a third direction which is perpendicular to the first direction and the second direction within the housing,
wherein the second wire group is disposed on a different plane from the first wire group in the third direction, and
wherein the plurality of first contact electrode and the plurality of second contact electrodes are disposed on a same plane in the third direction.
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