Systems and methods for restoring muscle function to the lumbar spine and kits for implanting the same
First Claim
1. An electrode lead configured to be implanted in or adjacent to tissue associated with control of the lumbar spine, the electrode lead comprising:
- an elongated lead body having a proximal end and a distal end;
one or more electrodes disposed along the distal end of the elongated lead body;
a first fixation element coupled to the elongated lead body at the distal end, the first fixation element comprising a first plurality of projections radially spaced around the elongated body; and
a second fixation element coupled to the elongated lead body distal to the first fixation element, the second fixation element comprising a second plurality of projections radially spaced around the elongated body and radially offset from the first plurality of projections, the first and the second fixation elements configured to transition from a delivery state, wherein the first and second fixation elements collapse inward toward the elongated lead body, to a deployed state, wherein the first fixation element is angled distally relative to the elongated lead body and the second fixation element is angled proximally relative to the elongated lead body and toward the first fixation element, to anchor the one or more electrodes in or adjacent to the tissue associated with control of the lumbar spine,wherein at least one of the one or more electrodes is disposed between the first and second fixation elements.
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Accused Products
Abstract
A system for restoring muscle function to the lumbar spine to treat low back pain is provided. The system may include one or more electrode leads coupled to an implantable pulse generator (IPG) and a tunneler system for subcutaneously implanting a proximal portion of the lead(s). The system may also include a handheld activator configured to transfer a stimulation command to the IPG, and an external programmer configured to transfer programming data to the IPG. The stimulation command directs the programmable controller to stimulate the tissue in accordance with the programming data. The system may include a software-based programming system run on a computer such that the treating physician may program and adjust stimulation parameters.
287 Citations
19 Claims
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1. An electrode lead configured to be implanted in or adjacent to tissue associated with control of the lumbar spine, the electrode lead comprising:
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an elongated lead body having a proximal end and a distal end; one or more electrodes disposed along the distal end of the elongated lead body; a first fixation element coupled to the elongated lead body at the distal end, the first fixation element comprising a first plurality of projections radially spaced around the elongated body; and a second fixation element coupled to the elongated lead body distal to the first fixation element, the second fixation element comprising a second plurality of projections radially spaced around the elongated body and radially offset from the first plurality of projections, the first and the second fixation elements configured to transition from a delivery state, wherein the first and second fixation elements collapse inward toward the elongated lead body, to a deployed state, wherein the first fixation element is angled distally relative to the elongated lead body and the second fixation element is angled proximally relative to the elongated lead body and toward the first fixation element, to anchor the one or more electrodes in or adjacent to the tissue associated with control of the lumbar spine, wherein at least one of the one or more electrodes is disposed between the first and second fixation elements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for implanting an electrode lead in or adjacent to tissue associated with control of the lumbar spine for restoring muscle function of the lumbar spine to reduce back pain, the method comprising:
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selecting an electrode lead comprising an elongated lead body having a proximal end and a distal end, one or more electrodes disposed along the distal end of the elongated lead body, a first fixation element comprising a first plurality of projections radially spaced around the elongated body, and a second fixation element comprising a second plurality of projections radially spaced around the elongated lead body distal to the first fixation element and radially offset from the first plurality of projections, wherein at least one of the one or more electrodes is disposed between the first and second fixation elements; delivering the distal end of the elongated body in a delivery state where the first and second fixation elements are collapsed inward toward the elongated lead body; and expanding the first and second fixation elements to a deployed state where the first fixation element is angled distally relative to the elongated lead body and the second fixation element is angled proximally relative to the elongated lead body and toward the first fixation element to anchor the one or more electrodes in or adjacent to the tissue associated with control of the lumbar spine. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification