Multipolar medical electrical lead
First Claim
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1. A medical electrical lead, comprising:
- an elongate lead body including a first conductor, a second conductor and a third conductor extending therein and electrically isolated from one another;
a first cathode electrode coupled to the first conductor;
a second cathode electrode coupled to the second conductor; and
a flexible anode electrode having a length less than approximately 10 millimeters and a surface area greater than a surface area of each of the first cathode electrode and the second cathode electrode, being coupled to the third conductor, spaced apart from and proximal to the first cathode electrode and spaced apart from and distal to the second cathode electrode, the spacing between the anode electrode and the first cathode electrode being approximately equal to the spacing between the anode electrode and the second cathode electrode.
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Abstract
A pacing lead includes a first pacing cathode coupled to a first conductor, a second pacing cathode coupled to a second conductor, and a flexible anode coupled to a third conductor. The flexible anode has a length less than approximately 10 millimeters and is spaced apart from and proximal to the first pacing cathode and spaced apart from and distal to the second pacing cathode. The spacing between the anode and the first pacing cathode is approximately equal to the spacing between the anode and the second pacing cathode.
117 Citations
25 Claims
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1. A medical electrical lead, comprising:
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an elongate lead body including a first conductor, a second conductor and a third conductor extending therein and electrically isolated from one another; a first cathode electrode coupled to the first conductor; a second cathode electrode coupled to the second conductor; and a flexible anode electrode having a length less than approximately 10 millimeters and a surface area greater than a surface area of each of the first cathode electrode and the second cathode electrode, being coupled to the third conductor, spaced apart from and proximal to the first cathode electrode and spaced apart from and distal to the second cathode electrode, the spacing between the anode electrode and the first cathode electrode being approximately equal to the spacing between the anode electrode and the second cathode electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for delivering a pacing pulse to a heart, the method comprising the steps of:
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positioning a distal portion of a pacing lead within a coronary vein, the distal portion including a first pacing cathode, a second pacing cathode and a flexible anode having a length less than approximately 10 millimeters and a surface area greater than a surface area of each of the first pacing cathode and the second pacing cathode, the flexible anode spaced apart from and proximal to the first pacing cathode and spaced apart from and distal to the second pacing cathode, the spacing between the anode and the first pacing cathode being approximately equal to the spacing between the anode and the second pacing cathode; selecting a one of the first pacing cathode and the second pacing cathode to form a bipolar pair with the flexible anode; delivering a pacing pulse to the heart via the bipolar pair. - View Dependent Claims (21, 22, 23, 24, 25)
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Specification