Medical lead with preformed bias

摘要

A medical electrical lead and methods of implanting medical electrical leads in lumens. Leads in accordance with the invention employ preformed biases to stabilize the lead within a lumen and to orient electrodes in a preferred orientation.

主权项

1. A method of implanting a lead in a lumen, the method comprising:
a. inserting a lead in a lumen, the lead having a helical bias with a central axis and a coil diameter defined by a line perpendicular to the central axis that intersects the central axis and the line having ends that intersect with two points on the helical bias and a plurality of electrodes wherein at least a portion of each of the plurality of electrodes is within a single quadrant of the helical bias and wherein each of the electrodes has a length such that a ratio of the coil diameter to the length of each of the electrodes is at least 4:1; and b. positioning the lead within the lumen so that a tissue of interest is within the quadrant as the quadrant extends outward radially.