Systems and methods for improving RF compatibility of electrical stimulation leads
First Claim
1. An implantable lead for stimulating patient tissue, the lead comprising:
- a lead body having a distal end, a proximal end, and a longitudinal length;
a jacket disposed over at least a portion of the longitudinal length of the lead body, the jacket having an outer surface and an opposing inner surface, at least a portion of the outer surface of the jacket forming at least a portion of an outer surface of the lead, at least a portion of the inner surface of the jacket open to the lead body, the jacket defining a plurality of apertures along the outer surface of the jacket with each of the plurality of apertures extending completely through the jacket to the inner surface;
a plurality of electrodes disposed along the distal end of the lead body;
a plurality of terminals disposed along the proximal end of the lead body;
a plurality of conductors electrically coupling the plurality of electrodes to at least one of the terminals; and
conductor insulation disposed over each of the plurality of conductors;
wherein at least a portion of the conductor insulation is in fluid communication with the local environment external to the lead via the plurality of apertures, wherein the apertures are spaced-apart and separate from the electrodes and terminals.
1 Assignment
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Accused Products
Abstract
An implantable lead for stimulating patient tissue includes a lead body. A jacket is disposed over at least a portion of a length of the lead body. The jacket has an outer surface and an opposing inner surface. At least a portion of the outer surface of the jacket forms at least a portion of an outer surface of the lead. At least a portion of the inner surface of the jacket is open to the lead body. The jacket defines apertures each extending completely through the jacket. Electrodes are disposed along a distal end of the lead body. Terminals are disposed along a proximal end of the lead body. Conductors electrically couple the electrodes to the terminals. Conductor insulation is disposed over each of the conductors. At least a portion of the conductor insulation is in fluid communication with the local environment external to the lead via the apertures.
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Citations
14 Claims
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1. An implantable lead for stimulating patient tissue, the lead comprising:
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a lead body having a distal end, a proximal end, and a longitudinal length; a jacket disposed over at least a portion of the longitudinal length of the lead body, the jacket having an outer surface and an opposing inner surface, at least a portion of the outer surface of the jacket forming at least a portion of an outer surface of the lead, at least a portion of the inner surface of the jacket open to the lead body, the jacket defining a plurality of apertures along the outer surface of the jacket with each of the plurality of apertures extending completely through the jacket to the inner surface; a plurality of electrodes disposed along the distal end of the lead body; a plurality of terminals disposed along the proximal end of the lead body; a plurality of conductors electrically coupling the plurality of electrodes to at least one of the terminals; and conductor insulation disposed over each of the plurality of conductors; wherein at least a portion of the conductor insulation is in fluid communication with the local environment external to the lead via the plurality of apertures, wherein the apertures are spaced-apart and separate from the electrodes and terminals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification