Patent ID: 7840279

Claim:
An implantable microstimulator arrangement, comprising: a plurality of implantable microstimulator units, each of the plurality of microstimulator units individually comprising a first implantable housing, at least two electrodes disposed on, or as part of, the first implantable housing, and an electronic subassembly disposed in the first implantable housing and coupled to the at least two electrodes, the electronic subassembly configured and arranged to generate electrical pulses at the at least two electrodes to stimulate adjacent tissue when implanted, the electronic subassembly comprising a processor configured and arranged to control characteristics of the generated electrical pulses; an implantable battery unit comprising a second implantable housing, and a power source disposed in the second implantable housing, wherein the implantable battery unit is separate from the plurality of implantable microstimulator units; and a plurality of leads coupling the plurality of microstimulator units to the battery unit.