Deep brain stimulation current steering with split electrodes
First Claim
1. A device for brain stimulation, comprising:
- a lead having a longitudinal surface, a proximal end and a distal end, the lead comprising a lead body;
a plurality of electrodes disposed along the longitudinal surface of the lead near the distal end of the lead comprising;
a first set of segmented electrodes comprising at least two segmented electrodes disposed around a circumference of the lead at a first longitudinal position along the lead; and
a second set of segmented electrodes comprising at least two segmented electrodes disposed around a circumference of the lead at a second longitudinal position along the lead; and
one or more conductors disposed near the distal end of the lead to gang, and electrically couple, together all of the segmented electrodes of the first set of segmented electrodes.
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Accused Products
Abstract
A device for brain stimulation includes a lead having a longitudinal surface, a proximal end, a distal end and a lead body. The device also includes a plurality of electrodes disposed along the longitudinal surface of the lead near the distal end of the lead. The plurality of electrodes includes a first set of segmented electrodes comprising at least two segmented electrodes disposed around a circumference of the lead at a first longitudinal position along the lead; and a second set of segmented electrodes comprising at least two segmented electrodes disposed around a circumference of the lead at a second longitudinal position along the lead. The device further includes one or more conductors that electrically couple together all of the segmented electrodes of the first set of segmented electrodes.
149 Citations
22 Claims
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1. A device for brain stimulation, comprising:
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a lead having a longitudinal surface, a proximal end and a distal end, the lead comprising a lead body; a plurality of electrodes disposed along the longitudinal surface of the lead near the distal end of the lead comprising; a first set of segmented electrodes comprising at least two segmented electrodes disposed around a circumference of the lead at a first longitudinal position along the lead; and a second set of segmented electrodes comprising at least two segmented electrodes disposed around a circumference of the lead at a second longitudinal position along the lead; and one or more conductors disposed near the distal end of the lead to gang, and electrically couple, together all of the segmented electrodes of the first set of segmented electrodes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for brain stimulation, the method comprising:
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inserting a device into a cranium of a patient, the device comprising a lead having a longitudinal surface, a proximal end and a distal end, and a plurality of electrodes disposed along the longitudinal surface of the lead, the plurality of electrodes comprising at least one set of segmented electrodes, each set of segmented electrodes comprising a plurality of segmented electrodes disposed around a circumference of the lead at a longitudinal position along the lead; selectively producing anodic and cathodic currents at the plurality of electrodes to stimulate a target neuron using the plurality of electrodes; and incrementally shifting the anodic current or cathodic current in at least two incremental steps from any one of the plurality of segmented electrodes to an adjacent one of the plurality of segmented electrodes. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A method for brain stimulation, the method comprising:
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inserting a device into a cranium of a patient, the device comprising a lead having a longitudinal surface, a proximal end and a distal end, and a plurality of electrodes disposed along the longitudinal surface of the lead, the plurality of electrodes comprising at least one set of segmented electrodes, each set of segmented electrodes comprising a plurality of segmented electrodes disposed around a circumference of the lead at a longitudinal position along the lead; selectively producing anodic and cathodic currents at the plurality of electrodes to stimulate a target neuron using the plurality of electrodes; defining a first timing channel which provides a first set of stimulation pulses to any one of the plurality of segmented electrodes; defining at least one second timing channel which provides at least a second set of stimulation pulses to any one of the plurality of segmented electrodes; and cycling the first and second sets of stimulation pulses, wherein the first and second sets of stimulation pulses are non-overlapping in the first and second timing channels. - View Dependent Claims (20, 21)
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22. An implantable stimulation device for brain stimulation, comprising:
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a lead having a longitudinal surface, a proximal end and a distal end, the lead comprising a plurality of electrodes disposed along the longitudinal surface of the lead near the distal end of the lead, the plurality of electrodes comprising; a first ring electrode disposed at a first longitudinal position along the lead, a first set of segmented electrodes comprising at least three segmented electrodes disposed around a circumference of the lead at a second longitudinal position along the lead, a second set of segmented electrodes comprising at least three segmented electrodes disposed around a circumference of the lead at a third longitudinal position along the lead, and a second ring electrode disposed at a fourth longitudinal position along the lead, wherein the second and third longitudinal positions are between the first and fourth longitudinal positions; and a control unit coupleable to the lead, wherein the implantable stimulation device is a constant-current device comprising a plurality of stimulation channels, with independent programmability of each of the plurality of stimulation channels to provide current steering.
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Specification