Subcutaneous shunted coil electrode
First Claim
1. A body implantable tissue stimulating device, including:
- an elongate, flexible electrically conductive lead; and
a tissue stimulating electrode array including at least two electrically common electrodes, each electrode including a body compatible primary conductor providing a convoluted electrically conductive path from a first end region of the electrode to a second and opposite end region of the electrode, a shunt conductor adjacent the primary conductor providing a substantially linear electrically conductive shunt path between said first and second end regions, said primary conductor and shunt conductor being electrically coupled at the first and second end regions and electrically isolated from one another between the first and second end regions;
wherein the first end region of each electrode is coupled with respect to a distal end region of the lead, to enable the electrode to receive tissue stimulating electrical pulses from a pulse generating means at a proximal end of the lead.
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Accused Products
Abstract
A body implantable cardioversion/defibrillation device includes an electrically conductive lead, three lead extensions coupled to the lead through a junction body, and an electrode array consisting of three electrodes, one electrode being coupled to each of the lead extensions. Each electrode has several separate electrically conductive paths, including a primary conductor in the form of a helically wound coil, and a linear shunt conductor in the form of a cable surrounded by the primary coil. The shunt cable is a composite, including a DBS core surrounded by an insulative coating. A dielectric sheath surrounds the shunt cable, preventing the cable from contacting the primary coil and isolating the shunt cable from contact with body tissue or body fluids. At each end of each electrode is a connector structure including a shunt connector attached to an end of the shunt cable, and an outer coil connector surrounding an end of the primary coil and the shunt connector. Both connectors are crimped to maintain the electrical and mechanical coupling. The junction body includes an electrically conductive plate having several bores directed inwardly into the plate. A thin wall portion on one side of each bore can be crimped following insertion of each lead or lead extension, to secure the electrical and mechanical connection.
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Citations
26 Claims
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1. A body implantable tissue stimulating device, including:
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an elongate, flexible electrically conductive lead; and a tissue stimulating electrode array including at least two electrically common electrodes, each electrode including a body compatible primary conductor providing a convoluted electrically conductive path from a first end region of the electrode to a second and opposite end region of the electrode, a shunt conductor adjacent the primary conductor providing a substantially linear electrically conductive shunt path between said first and second end regions, said primary conductor and shunt conductor being electrically coupled at the first and second end regions and electrically isolated from one another between the first and second end regions; wherein the first end region of each electrode is coupled with respect to a distal end region of the lead, to enable the electrode to receive tissue stimulating electrical pulses from a pulse generating means at a proximal end of the lead. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A body implantable tissue stimulation system, including:
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a stimulation pulse generator; a compliant, elongate tissue stimulating electrode array adapted to be implanted at least proximate the thoracic region, said electrode array including at least two electrically common electrodes, each electrode including a primary conductor providing a convoluted electrically conductive path from a first end portion of the electrode to a second and opposite end portion of the electrode, and a shunt conductor providing a substantially linear shunt path between said first end portion and said second end portion, said primary conductor and shunt conductor being electrically coupled at the first end portion and at the second end portion, said primary conductor being constructed of a biocompatible material and adapted to contact body tissue when said electrode is so implanted; a first coupling means electrically coupling the tissue stimulating electrode array and the stimulation pulse generator; a tissue stimulating electrode configuration including at least one electrode adapted to be implanted at least proximate the thoracic region and spaced apart from the first tissue stimulating electrode; and a second coupling means, electrically isolated from the first coupling means, for coupling the stimulation pulse generator and the tissue stimulating electrode configuration. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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22. A body implantable tissue stimulating device, including:
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an elongate, flexible electrically conductive lead; and a tissue stimulating electrode array including at least two electrically common electrodes, each electrode including a body compatible primary conductor providing an electrically conductive path from a first end region of the electrode to a second and opposite end region of the electrode, the primary conductor having an exposed surface over the majority of its length for contact with body tissue; a shunt conductor adjacent the primary conductor and providing a substantially linear electrically conductive shunt path between said first and second end regions; a substantially fluid tight means surrounding the shunt conductor to isolate the shunt conductor from contact with body tissue or body fluids; means electrically coupling the primary conductor and the shunt conductor at the first end region and at the second end region; and wherein the first end region of each electrode is coupled with respect to a distal end region of the lead, to enable the electrode to receive tissue stimulating electrical pulses from a pulse generating means at a proximal end of the lead. - View Dependent Claims (23, 24, 25, 26)
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Specification