Techniques for positioning therapy delivery elements within a spinal cord or brain
First Claim
1. An implantable paddle lead for providing therapy to targeted tissue comprising:
- an elongate central portion having a head and an elongate body;
at least one extendable member having an end, the extendable member comprising a movable lateral wing, the extendable member depending from the elongate body of the central portion and being adapted to assume a first position in which the end is disposed in close proximity to the body of the central portion, and a second position, in which the end is disposed from the body of the central portion by the moveable lateral wing, the moveable lateral wing defining a paddle surface; and
at least one therapy delivery element disposed on the elongate central portion and at least one therapy delivery element disposed on the paddle surface for delivering therapy to the targeted tissue.
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Accused Products
Abstract
Apparatus and techniques to address the problems associated with lead migration, patient movement or position, histological changes, neural plasticity or disease progression. Disclosed are techniques for implanting a lead having therapy delivery elements, such as electrodes or drug delivery ports, within a vertebral or cranial bone so as to maintain these elements in a fixed position relative to a desired treatment site. The therapy delivery elements may thereafter be adjusted in situ with a position control mechanism and/or a position controller to improve the desired treatment, such as_electrical stimulation and/or drug infusion to a precise target. The therapy delivery elements may be positioned laterally in any direction relative to the targeted treatment site or toward or away from the targeted treatment site. A control system maybe provided for open- or closed-loop feedback control of the position of the therapy delivery elements as well as other aspects of the treatment therapy.
434 Citations
27 Claims
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1. An implantable paddle lead for providing therapy to targeted tissue comprising:
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an elongate central portion having a head and an elongate body; at least one extendable member having an end, the extendable member comprising a movable lateral wing, the extendable member depending from the elongate body of the central portion and being adapted to assume a first position in which the end is disposed in close proximity to the body of the central portion, and a second position, in which the end is disposed from the body of the central portion by the moveable lateral wing, the moveable lateral wing defining a paddle surface; and at least one therapy delivery element disposed on the elongate central portion and at least one therapy delivery element disposed on the paddle surface for delivering therapy to the targeted tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for providing neurostimulation therapy to targeted tissue comprising in combination:
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an implantable paddle lead for providing therapy to a body comprising an elongate central portion having a head and an elongate body, at least one extendable member having an end, the extendable member comprising a movable lateral wing, the extendable member depending from the elongate body of the central portion and being adapted to assume a first position, in which the end is disposed in close proximity to the body of the central portion, and a second position, in which the end is disposed laterally from the body of the central portion by the moveable lateral wing, the moveable lateral wing defining a paddle surface, and at least one electrode disposed on the central portion and at least one therapy delivery element disposed on the paddle surface for providing electrical stimulation to the targeted tissue; and a signal generator electrically coupled to the electrodes of the implantable paddle lead. - View Dependent Claims (12, 13)
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14. A system for providing drug therapy to targeted tissue comprising in combination:
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an implantable paddle lead for providing therapy to a body comprising an elongate central portion having a head and a body, at least one extendable member having an end, the extendable member comprising a movable lateral wing, the extendable member depending from the body of the central portion and being adapted to assume a first position, in which the end is disposed in close proximity to the body of the central portion, and a second position, in which the end is disposed laterally from the body of the central portion by the moveable lateral wing, and at least drug infusion section disposed on the extendable member for delivering a drug to the targeted tissue; and and a pump fluidly coupled to the drug infusion section of the implantable paddle lead. - View Dependent Claims (15)
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16. A method for providing treatment therapy to neural tissue in the brain comprising the steps of:
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(a) implanting a paddle lead, the paddle lead comprising a movable lateral wing, the movable lateral wing comprising at least one therapy delivery element; (b) coupling the therapy delivery element to a therapy delivery device; (c) operating the therapy delivery device to provide treatment therapy to the targeted tissue via the implanted therapy delivery element; and (d) adjusting, at any time after the step of implanting, the position of the implanted therapy delivery element relative to neural tissue in the brain by moving the lateral wing. - View Dependent Claims (17, 18, 19, 20, 21)
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22. An implantable paddle lead comprising:
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an elongate central portion having a head and an elongate body, the elongate body comprising a first paddle surface; at least two first and second movable wings, each wing having an end, the wings depending from the elongate body of the central portion and being adapted to assume a first position, in which the ends of the wings are disposed in close proximity to the body of the central portion, and a second position, in which the ends of the wings are disposed laterally from the body of the central portion in generally opposite lateral directions to form a paddle, each moveable lateral wing defining a wing paddle surface; and at least one electrode disposed on each paddle surface of the elongate body and each wing for delivering stimulation to targeted tissue. - View Dependent Claims (23, 24, 25, 26, 27)
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Specification