LEAD BODY CONSTRUCTIONS FOR IMPLANTABLE MEDICAL ELECTRICAL LEADS
First Claim
1. An implantable medical electrical lead comprising:
- an elongate insulative lead body including a proximal end and a distal end;
a plurality of conductors extending longitudinally within the lead body, from the proximal end to the distal end of the lead body;
a connector terminal extending proximally from the proximal end of the lead body and coupled to the plurality of conductors;
a first filler extending longitudinally within the lead body, around the plurality of conductors and along a length of the lead body, the first filler having a stiffness;
a second filler extending longitudinally alongside the first filler within the lead body, the second filler having a stiffness greater than the stiffness of the first filler, and the second filler extending along a limited length, which limited length extends distally from the connector terminal, at the proximal end of the lead body.
1 Assignment
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Accused Products
Abstract
A lead body of an implantable medical electrical lead includes a first filler and a second filler, each extending within a proximal portion thereof. The first filler may have a stiffness that is less than that of the second filler, and may surround and isolate a plurality of conductors which are coupled to a connector terminal of the lead, which connector terminal extends proximally from a proximal end of the lead body. The second filler extends along a limited length, alongside the first filler, wherein the limited length extends distally from the connector terminal; the second filler may further extend into the connector terminal.
42 Citations
46 Claims
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1. An implantable medical electrical lead comprising:
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an elongate insulative lead body including a proximal end and a distal end; a plurality of conductors extending longitudinally within the lead body, from the proximal end to the distal end of the lead body; a connector terminal extending proximally from the proximal end of the lead body and coupled to the plurality of conductors; a first filler extending longitudinally within the lead body, around the plurality of conductors and along a length of the lead body, the first filler having a stiffness; a second filler extending longitudinally alongside the first filler within the lead body, the second filler having a stiffness greater than the stiffness of the first filler, and the second filler extending along a limited length, which limited length extends distally from the connector terminal, at the proximal end 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)
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22. A method for assembling a proximal portion of a medical electrical lead, the method comprising:
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forming a relatively rigid filler by dispensing an adhesive material into a tube; inserting the relatively rigid filler into a limited length of an elongate insulative body of the lead, at a proximal end thereof; dispensing a relatively flexible filler into the body, at the proximal end thereof and alongside the limited length for the relatively rigid filler; and attaching a connector terminal subassembly to the proximal end of the body. - View Dependent Claims (23, 24, 25, 26)
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27. An implantable medical electrical lead system comprising:
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an implantable medical electrical stimulation lead comprising; an elongate insulative stimulation lead body including a proximal end and a distal end; a stimulation lead connector extending proximally from the proximal end of the stimulation lead body; a stimulation lead electrode array extending distally from the distal end of the stimulation lead body; and a plurality of stimulation lead conductors extending within the stimulation lead body, from the proximal end to the distal end thereof, the plurality of stimulation lead conductors coupling the stimulation lead connector to the stimulation lead electrode array; and an implantable medical electrical adapter lead comprising; an elongate insulative adapter lead body including a proximal end and a distal end; a connector terminal extending proximally from the proximal end of the adapter lead body; a connector port extending distally from the distal end of the adapter lead body; a plurality of adapter lead conductors extending longitudinally within the adapter lead body, from the proximal end to the distal end of the adapter lead body, the plurality of adapter lead conductors coupling the connector terminal to the connector port; a first filler extending longitudinally within the adapter lead body, around the adapter lead conductors and along a length of the adapter lead body, the first filler having a stiffness; a second filler extending within the longitudinally alongside the first filler within the lead body, the second filler having a stiffness greater than the stiffness of the first filler, and the second filler extending along a limited length, which limited length extends distally from the connector terminal at the proximal end of the adapter lead body; wherein the connector port of the adapter lead is adapted to couple with the stimulation lead connector for electrical coupling of the stimulation lead electrode array with the connector terminal of the adapter lead. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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46. An implantable medical electrical lead comprising:
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an elongate insulative lead body including a proximal end and a distal end; a plurality of conductors extending longitudinally within the lead body, from the proximal end to the distal end of the lead body; a connector terminal extending proximally from the proximal end of the lead body and coupled to the plurality of conductors; a first filler extending longitudinally within the connector terminal and the lead body, around the plurality of conductors and along a length of the lead body, the first filler having a stiffness; a second filler extending longitudinally alongside the first filler within the connector terminal and the lead body, the second filler comprising a pre-formed component and epoxy adhesive extending therein, the second filler having a stiffness greater than the stiffness of the first filler, and the second filler extending along a limited length of the lead body.
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Specification