Electrode for high impedance heart stimulation
First Claim
1. A distal tip electrode adapted for implantation on or about the heart and for connection to a system for monitoring or stimulating cardiac activity, said electrode comprising:
- an electrically conductive base having a first diameter;
an electrode tip attached to said base and having a second diameter less than the first diameter;
a surface at the distal end of the electrode tip, said surface further comprising an electrical conducting surface; and
a high impedance masking member positioned over a portion of said electrical conducting surface, said masking member reducing the surface area of the electrical conducting surface in contact with the heart.
1 Assignment
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Accused Products
Abstract
An electrode adapted for implantation on or about the heart and for connection to a system for monitoring or stimulating cardiac activity includes an electrode tip which has one electrode at the far or distal end of the electrode tip. The distal end of the electrode further includes a screen capable of conducting electrical signals and pulses. An insulative masking member is positioned over a portion of the screen to define an electrical conducting surface. A conductor for carrying current is located within the electrode tip and is electrically connected to the conducting surface.
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Citations
21 Claims
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1. A distal tip electrode adapted for implantation on or about the heart and for connection to a system for monitoring or stimulating cardiac activity, said electrode comprising:
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an electrically conductive base having a first diameter; an electrode tip attached to said base and having a second diameter less than the first diameter; a surface at the distal end of the electrode tip, said surface further comprising an electrical conducting surface; and a high impedance masking member positioned over a portion of said electrical conducting surface, said masking member reducing the surface area of the electrical conducting surface in contact with the heart. - View Dependent Claims (2, 3)
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4. A distal tip electrode adapted for implantation on or about the heart and for connection to a system for monitoring or stimulating cardiac activity, said electrode comprising:
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a base having a first diameter; an electrode tip attached to said base and having a second diameter less than the first diameter; a surface at the distal end of the electrode tip, said surface further comprising an electrical conducting surface; and a high impedance masking member positioned over a portion of said electrical conducting surface, wherein the masking member is made of silicone tubing. - View Dependent Claims (5)
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6. A distal tip electrode adapted for implantation on or about the heart and for connection to a system for monitoring or stimulating cardiac activity, said electrode comprising:
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a base having a first diameter; an electrode tip attached to said base and having a second diameter less than the first diameter; a surface at the distal end of the electrode tip, said surface further comprising an electrical conducting surface; and a high impedance masking member positioned over a portion of said electrical conducting surface, wherein the electrical conducting surface includes a porous screen. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14)
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15. A lead adapted for implantation on or about the heart and for connection to a system for monitoring or stimulating cardiac activity, said lead comprising:
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a lead body including an electrode tip; a surface at the distal end of the electrode tip, said surface further comprising; an electrical conducting surface; and a masking member positioned over a portion of said electrical conducting surface to produce a substantially annular, unmasked conductive surface; and an electrical conductor associated with the lead body and electrically connecting with the electrical conducting surface. - View Dependent Claims (16)
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17. A lead adapted for implantation on or about the heart and for connection to a system for monitoring or stimulating cardiac activity, said lead comprising:
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a lead body having a diameter, said lead body including an electrode tip having a generally cylindrical main body; a surface at the distal end of the electrode tip, said surface further comprising; an electrical conducting surface; and a masking member positioned over a portion of said electrical conducting surface; an electrical conductor associated with the lead body and electrically connecting with the electrical conducting surface; a rim having an outer diameter about the same as the lead body diameter; and a convex portion extending away from the generally cylindrical main body of the electrode tip, said convex portion within the rim of the electrical conducting surface. - View Dependent Claims (18, 19, 20, 21)
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Specification