Integral spiral band electrode for transvenous defibrillation leads
First Claim
1. A defibrillation lead for location in a human heart of the type comprising:
- an elongated lead body extending between a connector at a proximal end thereof and to a distal end thereof;
an elongated defibrillation conductor within said lead body extending from said connector to a conductor distal end at a pre-determined location along the length of said lead body;
a defibrillation electrode extending in spiral turns of at least one spiral band around the exterior of said lead body for a pre-determined defibrillation electrode length, said defibrillation electrode fabricated of a single tubular member of body compatible, electrically conductive material having first and second ends and first and second tubular end bands adjacent said first and second ends and a lumen with an inside diameter selected to fit over said lead body, said single tubular member further including at least one spiral slit formed therein extending from first and second slit end points, spaced from said first and second ends, respectively, thereby forming said at least one spiral band integrally attached to first and second end bands, respectively; and
means for attaching at least one of said first and second end bands of said defibrillation electrode to said defibrillation lead conductor.
1 Assignment
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Accused Products
Abstract
A cardioversion/defibrillation lead, and method of manufacture thereof, for location in a human heart. An elongated lead body having an insulating outer sheath extends between proximal and distal ends thereof, and an elongated defibrillation conductor within the lead body extends from a connector at the proximal end to a distal end at a predetermined location along the lead body length. A spiral band defibrillation electrode extends in spiral turns around the exterior of the insulating outer sheath for a pre-determined defibrillation electrode length. The defibrillation electrode is fabricated of a single tube of body compatible, electrically conductive material having first and second tube ends and an inside diameter selected to fit over the outer sheath and the internally disposed defibrillation lead conductor. At least one (and preferably a plurality) spiral slit is formed therein extending from first and second slit end points, spaced from the first and second ends, respectively, thereby forming at least one spiral band integrally attached to first and second end bands, respectively. At least one of the first and second end bands is attached to the defibrillation lead conductor at or near the distal end thereof. In other embodiments, intermediate connection bands are formed along the length of the spiral band, and electrical connections are made between such intermediate connection bands and the defibrillation lead conductor.
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Citations
28 Claims
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1. A defibrillation lead for location in a human heart of the type comprising:
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an elongated lead body extending between a connector at a proximal end thereof and to a distal end thereof; an elongated defibrillation conductor within said lead body extending from said connector to a conductor distal end at a pre-determined location along the length of said lead body; a defibrillation electrode extending in spiral turns of at least one spiral band around the exterior of said lead body for a pre-determined defibrillation electrode length, said defibrillation electrode fabricated of a single tubular member of body compatible, electrically conductive material having first and second ends and first and second tubular end bands adjacent said first and second ends and a lumen with an inside diameter selected to fit over said lead body, said single tubular member further including at least one spiral slit formed therein extending from first and second slit end points, spaced from said first and second ends, respectively, thereby forming said at least one spiral band integrally attached to first and second end bands, respectively; and means for attaching at least one of said first and second end bands of said defibrillation electrode to said defibrillation lead conductor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A defibrillation lead for location in a human heart of the type comprising:
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an elongated lead body extending between a connector at a proximal end thereof and to a distal end thereof; an elongated defibrillation conductor within said lead body extending from said connector to a conductor distal end at a pre-determined location along the length of said lead body; a defibrillation electrode extending in spiral turns of at least one spiral band around the exterior of said lead body for a pre-determined defibrillation electrode length, said defibrillation electrode fabricated of a single tubular member of body compatible, electrically conductive material having first and second ends and first and second tubular end bands adjacent said first and second ends and a lumen with an inside diameter selected to fit over said lead body, said single tubular member further including at least one spiral slit formed therein extending from first and second slit end points, spaced from said first and second ends, respectively, thereby forming said at least one spiral band integrally attached to first and second end bands, respectively; and means for attaching at least one of said first and second end bands of said defibrillation electrode to said defibrillation lead conductor, said slit formed by machining away material of said single tubular member.
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20. A defibrillation lead for location in a human heart of the type comprising:
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an elongated lead body extending between a connector at a proximal end thereof and to a distal end thereof; an elongated defibrillation conductor within said lead body extending from said connector to a conductor distal end at a pre-determined location along the length of said lead body; a defibrillation electrode extending in spiral turns of at least one spiral band around the exterior of said lead body for a pre-determined defibrillation electrode length, said defibrillation electrode fabricated of a single tubular member of body compatible, electrically conductive material having first and second ends and first and second tubular end bands adjacent said first and second ends and a lumen with an inside diameter selected to fit over said lead body, said single tubular member further including at least one spiral slit formed therein extending from first and second slit end points, spaced from said first and second ends, respectively, thereby forming said at least one spiral band integrally attached to first and second end bands, respectively; and means for attaching at least one of said first and second end bands of said defibrillation electrode to said defibrillation lead conductor, said slit formed by chemically etching away material of said single tubular member.
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21. A defibrillation lead for location in a human heart of the type comprising:
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an elongated lead body extending between a connector at a proximal end thereof and to a distal end thereof; an elongated defibrillation conductor within said lead body extending from said connector to a conductor distal end at a pre-determined location along the length thereof; a defibrillation electrode extending in spiral turns of at least one spiral band around the exterior of said lead body for a pre-determined defibrillation electrode length, said defibrillation electrode fabricated of a single tubular member of body compatible, electrically conductive material having first and second ends and first and second tubular end bands adjacent said first and second ends and a lumen with an inside diameter selected to fit over said lead body, said single tubular member further including at least one spiral slit formed therein extending from first and second slit end points, spaced from said first and second ends, respectively, thereby forming said at least one spiral band integrally attached to first and second end bands, respectively; and at least one intermediate connection band formed of a spiral band turn between said first and second end bands; and means for attaching said at least one intermediate connection band of said defibrillation electrode to said defibrillation lead conductor. - View Dependent Claims (22, 23, 24)
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25. A defibrillation lead for location in a human heart of the type comprising:
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an elongated lead body extending between a connector at a proximal end thereof and a distal end thereof; an elongated defibrillation conductor within said lead body extending from said connector to a conductor distal end at a pre-determined location along the length thereof; a defibrillation electrode extending for a pre-determined defibrillation electrode length, said defibrillation electrode fabricated of a single tubular member of body compatible, electrically conductive material having first and second ends and first and second segments between the first and second ends and first and second tubular end bands adjacent said first and second ends and a lumen of an inside diameter selected to fit over said lead body, said tubular member further including at least first and second spiral slits formed therein in the first and second segments, respectively, extending from first and second slit end points spaced from said first and second ends, respectively, to third and fourth end points spaced from one another between said first and second segments along the length of said tubular member, thereby forming said at least two, end-to-end spiral bands integrally attached to first and second end bands, respectively, and joined at an intermediate band bounded by said third and fourth end points; and means for attaching at least one of said first and second end bands and said intermediate band of said defibrillation electrode to said defibrillation lead conductor. - View Dependent Claims (26, 27, 28)
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Specification