System for optimized brain stimulation
First Claim
1. A brain stimulation system, comprising a brain stimulator device and lead means for placement of electrodes at predetermined positions within a patient'"'"'s brain,said brain stimulator device having first pulse means for generating feedback pulses for stimulating a feedback target in the patient'"'"'s brain and second pulse means for generating DBS pulses for stimulating a neuro-modulation target in said patient'"'"'s brain;
- and lead means connected to said device for conducting said pulses from said device to said respective targets, said lead means comprising a DBS electrode and a conductor for conducting said DBS pulses from said second pulse means to said DBS electrode, a feedback electrode and a conductor for connecting said feedback pulses from said first pulse means to said feedback electrode, and said DBS and feedback electrodes being positioned on said lead means relative to each other so that when said DBS electrode is positioned at said neuro-stimulation target said feedback electrode is positioned at said feedback target.
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Abstract
There is provided apparatus and a method for testing to optimally place a deep brain lead, particularly for stimulating the GPi or other deep brain target to treat neurological disorders such as Parkinson'"'"'s Disease and the like. The invention embraces determining the location of a feedback target such as the motor cortex, the location of the deep brain target, and inserting a test lead along a substantially linear trajectory so as to be able to stimulate both concurrently. The test lead has an electrode at about its distal end for stimulation of the deep brain target, and an electrode adjustably positioned 3-8 cm proximal for stimulation of the motor cortex. When stimulation is applied concurrently through both electrodes, the affected body portion, e.g., limb, can be made to move when and if the deep brain electrode is optimally positioned. The position can be checked during surgical implant of the system, and the lead position adjusted until the optimum position is found. By use of this invention, the best lead position for the permanently implanted lead can be determined during the surgical procedure.
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Citations
8 Claims
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1. A brain stimulation system, comprising a brain stimulator device and lead means for placement of electrodes at predetermined positions within a patient'"'"'s brain,
said brain stimulator device having first pulse means for generating feedback pulses for stimulating a feedback target in the patient'"'"'s brain and second pulse means for generating DBS pulses for stimulating a neuro-modulation target in said patient'"'"'s brain; - and
lead means connected to said device for conducting said pulses from said device to said respective targets, said lead means comprising a DBS electrode and a conductor for conducting said DBS pulses from said second pulse means to said DBS electrode, a feedback electrode and a conductor for connecting said feedback pulses from said first pulse means to said feedback electrode, and said DBS and feedback electrodes being positioned on said lead means relative to each other so that when said DBS electrode is positioned at said neuro-stimulation target said feedback electrode is positioned at said feedback target. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification