Transvenous electrode
First Claim
1. In a transvenous electrode carrying lead of the type having an electrical conductor encased in a material which is generally inert to body fluids and tissue and having body tissue engaging means of a material which is generally inert to body fluids and tissue extending from the casing at a location adjacent to the lead terminus, the improvement wherein said body tissue engaging means comprises a plurality of non-conducting tine means extending from said casing material in directions which fall within no more than a 180°
- arc around the periphery of said casing material for urging the electrode carrying portion of lead in a transverse direction outside of said 180°
arc, said tine means being entirely of a pliant material having sufficient rigidity to cooperate with body tissue and effect said urging while being sufficiently pliant to prevent penetration of said body tissue.
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Accused Products
Abstract
A transvenous lead including a conductor encased in an insulating material which is generally inert in body fluids and tissues, the conductor being connected to an exposed, electrically conductive electrode at, or adjacent to, the lead terminus. At least one tine extends from the casing adjacent the lead terminus for engaging the inner wall or trabeculae of an internal body organ or chamber to urge the electrode in a given generally transverse direction, all of such tines extending from the casing in directions which fall within an 180° arc around its periphery with no tine extending in a direction less than 90° from the given direction. In one preferred embodiment, the electrode forms a conductive lead tip and includes a portion skewed toward the given direction.
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Citations
23 Claims
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1. In a transvenous electrode carrying lead of the type having an electrical conductor encased in a material which is generally inert to body fluids and tissue and having body tissue engaging means of a material which is generally inert to body fluids and tissue extending from the casing at a location adjacent to the lead terminus, the improvement wherein said body tissue engaging means comprises a plurality of non-conducting tine means extending from said casing material in directions which fall within no more than a 180°
- arc around the periphery of said casing material for urging the electrode carrying portion of lead in a transverse direction outside of said 180°
arc, said tine means being entirely of a pliant material having sufficient rigidity to cooperate with body tissue and effect said urging while being sufficiently pliant to prevent penetration of said body tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- arc around the periphery of said casing material for urging the electrode carrying portion of lead in a transverse direction outside of said 180°
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11. A body implantable lead adapted to make electrical contact with the inner wall of an internal body organ or chamber which comprises:
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electrical conductor means; means for connecting said electrical conductor means to a source of electrical energy; insulating means encapsulating and electrically insulating said conductor means, said insulating means being of a material which is substantially inert in body fluids and tissue; electrode means electrically connected to said electrical conductor means; and a plurality of pliant non-conducting tine means extending from said insulating means for engaging body tissue, without penetration of the tissue, to urge said electrode means in a given, nominally transverse direction, none of said tine means extending in a direction less than 90°
from said given direction. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification