Implantable medical lead and method of manufacture
First Claim
1. A method of manufacturing an implantable electrical lead body, the method comprising:
- assembling, along an outer surface of inner elongate structure defining an longitudinal axis, at least one elongate conductor and at least one twist ring holding a first portion of the elongate conductor;
fixing a second portion of the elongate conductor to the outer surface of the inner elongate structure, the second portion of the elongate conductor being spaced along the length of the elongate conductor; and
rotating the twist ring relative to the longitudinal axis of the inner elongate structure to coil the at least one elongate conductor.
1 Assignment
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Accused Products
Abstract
An implantable electrical lead having coiled conductors and a method of manufacturing the lead. The method generally comprises: (a) assembling, along an outer surface of inner elongate structure defining an longitudinal axis, at least one elongate conductor and at least one twist ring holding a first portion of the elongate conductor; (b) fixing a second portion of the elongate conductor to the outer surface of the inner elongate structure, the second portion of the elongate conductor being spaced along the length of the elongate conductor; and (c) rotating the twist ring relative to the longitudinal axis of the inner elongate structure to coil the at least one elongate conductor.
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Citations
44 Claims
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1. A method of manufacturing an implantable electrical lead body, the method comprising:
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assembling, along an outer surface of inner elongate structure defining an longitudinal axis, at least one elongate conductor and at least one twist ring holding a first portion of the elongate conductor; fixing a second portion of the elongate conductor to the outer surface of the inner elongate structure, the second portion of the elongate conductor being spaced along the length of the elongate conductor; and rotating the twist ring relative to the longitudinal axis of the inner elongate structure to coil the at least one elongate conductor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. An implantable electrical lead comprising:
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proximal and distal end portions, and a lead body extending between the proximal and distal end portions; at least one electrical contact in the proximal end portion adapted to make electrical contact with a connector of a lead extension or pulse generator; at least one electrode in the distal end portion adapted to interact with tissue; at least one elongate conductor through the lead body between the proximal and distal portions in electrical communication with the contact and electrode, the conductor including along its length at least a first portion, a second portion spaced along the length of conductor from the first portion, and a first segment defined between the first and second portions; wherein the lead body includes; an inner elongate structure defining an longitudinal axis; first and second twist rings mounted on the inner elongate structure, the first and second twist rings holding the first and second portions, respectively, of the elongate conductor, one of the first and second twist rings having been rotated about the inner elongate structure relative to the other of the first and second twist rings to coil the first segment of the elongate conductor, both twist rings having been bonded to the inner elongate structure; and an outer jacket covering the inner elongate structure and first segment of the elongate conductor between the first and second twist rings. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31)
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32. An implantable electrical lead comprising:
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proximal and distal end portions, and a lead body extending between the proximal and distal end portions; electrical contact means in the proximal end portion for making electrical contact with a connector of a lead extension or pulse generator; electrode means in the distal end portion for interacting with tissue; wire conductor means, through the lead body between the proximal and distal portions, for establishing electrical communication between the electrical contact means and the electrode means, the wire conductor means including a plurality of wire conductors each having a length with a first portion, a second portion spaced along the length of wire conductor from the first portion, and a first segment defined between the first and second portions; wherein the lead body includes; an inner elongate structure defining an longitudinal axis; first and second twist rings mounted on the inner elongate structure, the first and second twist rings holding the first and second portions, respectively, of the elongate conductors, one of the first and second twist rings having been rotated about the inner elongate structure relative to the other of the first and second twist rings to coil the first segments of the elongate conductors, both twist rings being fixed to the inner elongate structure before use of the lead; and an outer jacket covering the inner elongate structure and first segments of the elongate conductors between the first and second twist rings. - View Dependent Claims (33, 34, 35, 36)
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37. A method of manufacturing an implantable electrical lead body, the method comprising:
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(a) providing an elongate strut, first and second twist rings, and at least one conductor, the first and second twist rings having at least one opening or groove for receiving and holding at least one conductor; (b) fixing the first twist ring to the strut; (c) threading the at least one conductor wire through the opening or groove in the first twist ring; (d) placing a second twist ring on the strut wherein upon conclusion of steps (b) and (d) the first and second twist rings are spaced apart along the strut; (e) threading the at least one conductor through the opening or groove in the second twist ring, wherein steps (b) through (e) may be performed in any order and upon conclusion of steps (b) through (e) a segment of the at least one conductor is defined between the first and second twist rings; (f) rotating the second twist ring relative to the longitudinal axis of the strut to coil the segment of at least one elongate conductor between the first and second twist rings; and (g) fixing the second twist ring to the strut. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44)
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Specification