Systems and methods for altering one or more RF-response properties of electrical stimulation systems
First Claim
1. An electrical stimulation lead assembly comprising:
- a lead configured and arranged for insertion into a body of a patient, the lead comprisinga lead body having a distal end portion, a proximal end portion, an outer surface, and a longitudinal length,at least one lumen extending along the longitudinal length of the lead body, the at least one lumen configured and arranged to receive a stylet,a plurality of electrodes disposed along the distal end portion of the lead body external to the at least one lumen,a plurality of terminals disposed along the proximal end portion of the lead body external to the at least one lumen, anda plurality of conductors disposed in the lead body external to the at least one lumen, each conductor electrically coupling at least one of the plurality of electrodes to at least one of the plurality of terminals; and
at least one safety element disposed in the at least one lumen, the at least one safety element configured and arranged to reduce damage to patient tissue adjacent to the lead body due to heating, induced electrical signals, or both when the lead is exposed to radio frequency irradiation by drawing heat inwardly from the outer surface of the lead body;
wherein the at least one safety element is configured and arranged to draw heat inwardly from the outer surface of the lead body by actively altering heat conduction within the lead body.
1 Assignment
0 Petitions
Accused Products
Abstract
An implantable lead includes a lead body and at least one safety element. The lead body has a distal end and a proximal end. The lead body defines at least one lumen extending along at least a portion of the lead body. The lead body includes a plurality of electrodes disposed on the distal end of the lead body, a plurality of terminals disposed on the proximal end of the lead body, and a plurality of conductors disposed in the lead body, each conductor electrically coupling at least one of the electrodes to at least one of the terminals. The at least one safety element is disposed along at least a portion of the lead body and is configured and arranged to reduce damage to patient tissue adjacent to the plurality of electrodes due to heating, induced electrical signals, or both when the lead is exposed to radio frequency irradiation.
106 Citations
18 Claims
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1. An electrical stimulation lead assembly comprising:
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a lead configured and arranged for insertion into a body of a patient, the lead comprising a lead body having a distal end portion, a proximal end portion, an outer surface, and a longitudinal length, at least one lumen extending along the longitudinal length of the lead body, the at least one lumen configured and arranged to receive a stylet, a plurality of electrodes disposed along the distal end portion of the lead body external to the at least one lumen, a plurality of terminals disposed along the proximal end portion of the lead body external to the at least one lumen, and a plurality of conductors disposed in the lead body external to the at least one lumen, each conductor electrically coupling at least one of the plurality of electrodes to at least one of the plurality of terminals; and at least one safety element disposed in the at least one lumen, the at least one safety element configured and arranged to reduce damage to patient tissue adjacent to the lead body due to heating, induced electrical signals, or both when the lead is exposed to radio frequency irradiation by drawing heat inwardly from the outer surface of the lead body; wherein the at least one safety element is configured and arranged to draw heat inwardly from the outer surface of the lead body by actively altering heat conduction within the lead body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification