Medical lead with sigma feature
First Claim
1. An implantable medical lead for electrical stimulation, the medical lead having electrode contacts and metal wires connected to the electrode contacts, comprising:
- a lead body having a distal end and a proximal end, the lead body defining at least one substantially planar deformable sigma segment,whereby the substantially planar deformable sigma segment of the lead body provides flexible longitudinal extension of the lead body and thereby substantially prevents loading of the electrode contacts during the experiencing of forces tending to load the electrode contacts.
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Accused Products
Abstract
An implantable medical lead for spinal cord, peripheral nerve or deep brain stimulation comprises a lead body which includes a deformable sigma segment preferably in the shape of a sine wave and a lead paddle coupled to the lead body at the distal end thereof. The lead body at its proximal end may be coupled to an implantable pulse generator, additional, intermediate wiring or other stimulation device. The lead paddle may comprise a plurality of electrode contacts for providing electrical stimulation to targeted human tissue. The lead body, which defines the sigma segment, in a plane, couples the lead paddle and pulse generator. The sigma segment provides flexing and bending of the wire when a patient shifts or moves, and especially provides longitudinal extension between the pulse generator and lead paddle.
161 Citations
14 Claims
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1. An implantable medical lead for electrical stimulation, the medical lead having electrode contacts and metal wires connected to the electrode contacts, comprising:
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a lead body having a distal end and a proximal end, the lead body defining at least one substantially planar deformable sigma segment, whereby the substantially planar deformable sigma segment of the lead body provides flexible longitudinal extension of the lead body and thereby substantially prevents loading of the electrode contacts during the experiencing of forces tending to load the electrode contacts. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An implantable medical lead for electrical stimulation, comprising:
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a plurality of lead bodies including substantially planar sigma segments, and a lead paddle coupled to the lead bodies, the lead paddle having a plurality of electrode contacts and metal wires connected to the plurality of electrode contacts, the substantially planar sigma segments providing flexing and thereby preventing loading of the electrode contacts of the lead paddle. - View Dependent Claims (10, 11, 12, 13, 14)
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Specification