Implantable defibrillation electrode and method of manufacture
First Claim
1. An implantable defibrillation electrode lead comprising:
- an elongated insulated conductor coupled to an electrode body assembly, said electrode body assembly including a generally planar, flexible, insulative electrode body, said electrode body including an elongated flexible electrode core defining two generally parallel elongated segments, each of said elongated segments defining a plurality of sigmoidal curves located in the plane of said electrode body;
an electrode coil mounted around said electrode core and extending along said electrode core, coupled to said elongated insulated conductor; and
means for connecting adjacent portions of said first and second segments to one another, at locations spaced along said first and second elongated segments.
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Accused Products
Abstract
A defibrillation electrode fabricated by molding an elongated electrode core taking the form of two parallel segments each defining several sigmoidal curves, sliding a conductor coil over and along the electrode core, coupling the electrode coil to an elongated conductor, molding bridging members to connect the two segments of the core at spaced locations along the segments and molding a transition member to the electrode assembly at the junction of the electrode coil and the elongated conductor. The resulting electrode is particularly adapted for use as an epicardial defibrillation electrode, and displays flexibility within the plane defined by the electrode body as well as for twisting and other deformation to follow the changing surface of the heart during contractions.
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Citations
10 Claims
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1. An implantable defibrillation electrode lead comprising:
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an elongated insulated conductor coupled to an electrode body assembly, said electrode body assembly including a generally planar, flexible, insulative electrode body, said electrode body including an elongated flexible electrode core defining two generally parallel elongated segments, each of said elongated segments defining a plurality of sigmoidal curves located in the plane of said electrode body; an electrode coil mounted around said electrode core and extending along said electrode core, coupled to said elongated insulated conductor; and means for connecting adjacent portions of said first and second segments to one another, at locations spaced along said first and second elongated segments. - View Dependent Claims (2, 3, 4)
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5. A method of fabrication of an implantable defibrillation electrode lead, comprising:
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molding an elongated flexible electrode core of an insulative, elastic plastic, said core defining two, generally parallel elongated segments, each of said elongated segments defining a plurality of coplanar sigmoidal curves; sliding an electrode coil over said electrode core along the length of said electrode core; connecting said electrode coil to an elongated, insulative conductor; and molding bridging members to said assembly of said core and said electrode coil, connecting said first and second segments to one another at locations spaced along said first and second elongated segments. - View Dependent Claims (6)
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7. An implantable defibrillation electrode lead, comprising:
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an elongated insulated conductor coupled to an electrode body assembly, said electrode body assembly including a generally planar, insulated electrode body, said electrode body including an elongated flexible electrode core defining a plurality of sigmoidal curves located in the plane of said electrode body; an electrode coil mounted around said electrode core and extending along said electrode core, coupled to said elongated insulated conductor; and means for mounting said electrode to a patient'"'"'s heart. - View Dependent Claims (8, 9)
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10. A method of manufacturing an implantable defibrillation electrode lead, comprising:
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molding a flexible, insulative electrode body including an elongated flexible electrode core defining a plurality of coplanar sigmoidal curves; sliding an electrode coil over said core, along the length of said core; coupling an elongated, insulated conductor to said electrode coil; and molding an insulative transition member over the junction of said electrode coil and said elongated coiled conductor.
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Specification