Techniques for positioning therapy delivery elements within a spinal cord or brain
First Claim
1. A medical device for providing therapy to a body comprising:
- a lead having a body with a plurality of therapy delivery elements; and
a plurality of threaded collars adapted to be screwed into bone of a patient, each threaded collar defining a proximal opening in a top portion of the threaded collar, a passageway through the threaded collar, and a distal opening, wherein each of the threaded collars is coupled to the body of the lead such that the body of the lead is disposed distally of the distal opening of each threaded collar.
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Abstract
Apparatus and techniques to address 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.
86 Citations
13 Claims
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1. A medical device for providing therapy to a body comprising:
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a lead having a body with a plurality of therapy delivery elements; and a plurality of threaded collars adapted to be screwed into bone of a patient, each threaded collar defining a proximal opening in a top portion of the threaded collar, a passageway through the threaded collar, and a distal opening, wherein each of the threaded collars is coupled to the body of the lead such that the body of the lead is disposed distally of the distal opening of each threaded collar. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification