High impedance drug eluting cardiac lead
First Claim
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1. A high impedance bipolar cardiac lead comprising:
- a) an elongated lead body having opposed proximal and distal ends;
b) a ring electrode operatively associated with the distal end of the lead body;
c) a tip electrode coaxially disposed within the ring electrode so as to form an annular gap therebetween;
d) an insulating member disposed within the annular gap between the tip electrode and the ring electrode;
e) a connector operatively associated with the proximal end of the lead body and electrically connected to the ring and tip electrodes; and
f) conductor means extending through the lead body for delivering energy from the connector to the ring and tip electrodes to stimulate cardiac tissue.
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Abstract
A high impedance bipolar cardiac lead is disclosed that includes a lead body with a distal electrode assembly that includes an anodic ring electrode and a coaxially disposed cathodic tip electrode, wherein the anodic ring electrode and the cathodic tip electrode are separated from one another by a drug eluting insulating member.
45 Citations
24 Claims
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1. A high impedance bipolar cardiac lead comprising:
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a) an elongated lead body having opposed proximal and distal ends;
b) a ring electrode operatively associated with the distal end of the lead body;
c) a tip electrode coaxially disposed within the ring electrode so as to form an annular gap therebetween;
d) an insulating member disposed within the annular gap between the tip electrode and the ring electrode;
e) a connector operatively associated with the proximal end of the lead body and electrically connected to the ring and tip electrodes; and
f) conductor means extending through the lead body for delivering energy from the connector to the ring and tip electrodes to stimulate cardiac tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A high impedance bipolar cardiac lead, comprising:
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a) an elongated lead body having opposed proximal and distal ends;
b) an anodic ring electrode operatively associated with the distal end of the lead body;
c) a cathodic tip electrode coaxially disposed within the anodic ring electrode so as to form an annular gap therebetween;
d) a drug eluting insulating member disposed within the annular gap between the cathodic tip electrode and the anodic ring electrode;
e) a connector operatively associated with the proximal end of the lead body and electrically connected to the ring and tip electrodes; and
f) conductor means extending through the lead to deliver electrical energy from the connector to the ring and tip electrodes to stimulate cardiac tissue. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A high impedance bipolar cardiac lead, comprising:
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a) a lead body having opposed proximal and distal ends; and
b) an electrode assembly operatively associated with the distal end of the lead body and including an anodic ring electrode and a coaxially disposed cathodic tip electrode, wherein the anodic ring electrode and the cathodic tip electrode are separated from one another by a drug eluting insulating member. - View Dependent Claims (23, 24)
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Specification