Cardiac vein lead with flexible anode and method for forming same
First Claim
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1. A cardiac pacing lead, comprising:
- an elongated lead body extending from a proximal end to a distal end, the lead body having an outer insulative sheath;
a first electrode positioned at the distal end of the lead body; and
a second electrode spaced proximally from the first electrode and positioned within the outer insulative sheath, wherein the second electrode includes a plurality of filars having corresponding distal ends, each of the distal ends being fixed to a corresponding adjacent filar of the plurality of filars.
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Abstract
A bipolar cardiac vein lead and method of assembly is provided wherein the lead includes a flexible coil anode electrode such that the lead may be advanced through a tortuous pathway. The coil electrode is coupled to a conductor using a method of assembly that minimizes or eliminates rigid components, maintaining flexibility of the distal lead end. Multi-polar cardiac vein leads may include multiple flexible coil electrodes to achieve pacing and/or sensing in the left atrium and the left ventricle or at multiple left heart sites.
84 Citations
16 Claims
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1. A cardiac pacing lead, comprising:
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an elongated lead body extending from a proximal end to a distal end, the lead body having an outer insulative sheath;
a first electrode positioned at the distal end of the lead body; and
a second electrode spaced proximally from the first electrode and positioned within the outer insulative sheath, wherein the second electrode includes a plurality of filars having corresponding distal ends, each of the distal ends being fixed to a corresponding adjacent filar of the plurality of filars. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of forming a cardiac lead having an elongated lead body extending from a proximal end to a distal end, the lead body having an outer insulative sheath, comprising the steps of:
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positioning a first electrode along the distal end of the lead body;
positioning a second electrode within the outer insulative sheath to be spaced proximally from the first electrode;
advancing the second electrode along a mandrel so that a distal end portion of the second electrode is engaged against a handle of the mandrel to form fixedly engaged compressed filars; and
fixedly coupling corresponding distal ends of a plurality of filars corresponding to the compressed filars to a corresponding adjacent filar of the plurality of filars. - View Dependent Claims (15, 16)
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Specification