| 摘要 |
An apparatus and method for selectively interacting with electrically excitable tissue of a patient are provided. The apparatus includes an implantable pulse generator (220) having a number of output sources (222-224) that transmit pulse signals. An extension unit (226) couples the implantable pulse generator to an implantable electrode array (238-243). The implantable electrode array has a number of electrodes, wherein the number of electrodes is greater than the number of output sources. The extension unit is configured to electrically connect the output sources to a portion of the electrodes.
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