Patent Document ID: 20020161403
Application ID: 09936803
Patent Flag: 0

Claim One:
1. A multichannel deep brain stimulation system ( 10 ) comprising: an implantable pulse generator ( 20 ) connected to at least one electrode array ( 30 ), said at least one electrode array having a plurality of electrodes ( 32 ) through which electrical stimuli may be applied to body tissue; a rechargeable battery ( 27 ) coupled to the implantable pulse generator; a hand-held programmer ( 50 ); and an external battery charging system ( 40 ); wherein the implantable pulse generator ( 20 ) and at least one electrode array ( 30 ) are adapted to be implanted directly in the cranium of a patient, whereby electrical stimuli may be applied to brain tissue of the patient; and wherein the implantable pulse generator ( 20 ) includes control circuits ( 21, 26, 27 ) and memory circuits ( 22, 24 ) that cause stimulation pulses to be applied through at least one of a plurality of channels to the electrodes ( 32 ) of the at least one electrode array in accordance with a program stored within the memory circuits of the implantable pulse generator; and wherein the hand-held programmer ( 50 ) may be coupled to the implantable pulse generator through an RF link ( 44 ) for the purpose of programming and testing the implantable pulse generator ( 20 ); and wherein the external battery charging system ( 40 ) may be inductively coupled to the rechargeable battery ( 27 ) for the purpose of replenishing the power stored within the rechargeable battery.