Implantable medical lead with axially oriented coiled wire conductors
First Claim
1. An implantable medical lead for use with an implantable medical device, the lead comprising:
- a lead body that defines a center axis; and
multiple conductors located inside the lead body, wherein at least one of the conductors includes a coiled wire defining a lumen with a center axis substantially parallel to the center axis of the lead body.
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Accused Products
Abstract
An implantable lead has a lead body construction designed to accommodate loading forces exerted on the lead body during patient movement. The lead body may be sufficiently stretchable to resist forces that could otherwise cause lead failure, axial migration of the electrodes, anchor damage, or tissue damage. Increasing stretchability of a lead body can also increase the vulnerability of the lead body to flex fatigue, buckling fatigue, kinking, and crush. Therefore, the lead described herein includes conductors that comprise coiled wires positioned substantially parallel to a center axis of the lead. The conductors described herein may be coiled around fibers that limit the axial stiffness of the coiled wires to ensure full recovery from axial loading.
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Citations
35 Claims
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1. An implantable medical lead for use with an implantable medical device, the lead comprising:
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a lead body that defines a center axis; and
multiple conductors located inside the lead body, wherein at least one of the conductors includes a coiled wire defining a lumen with a center axis substantially parallel to the center axis of the lead body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. An implantable medical device comprising:
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a housing;
an implantable pulse generator, within the housing, that generates electrical stimulation pulses;
an implantable lead, extending from the housing, and comprising a lead body that defines a center axis, multiple electrodes, and multiple conductors located inside the lead body, wherein at least one of the conductors includes a coiled wire defining a lumen with a center axis substantially parallel to the center axis of the lead body, and wherein the conductors electrically couple the electrodes to the implantable pulse generator. - View Dependent Claims (30, 31, 32, 33, 34, 35)
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Specification