Medtronic, Inc.

Nicole L Werner

Douglas S Hine

Douglas N Hess

William J Clemens

Carla Pfeiffer

Walton William Baxter, Iii

Deborah A Loch

Walton W Baxter

Carla C Pfeiffer

A distal section of an implantable medical electrical lead body includes a pair of pre-formed arcuate segments between which an approximately straight segment extends. The approximately straight segment includes a first portion extending distally from a first of the pair pre-formed arcuate segments, a second portion extending from the first portion, a third portion extending from the second to a second of the pair pre-formed arcuate segments. An electrode is coupled to the second portion of the approximately straight segment, and the adjacent first portion has a stiffness which is less than that of the first of the pair pre-formed arcuate segments and preferably less than the stiffness of the third portion, so that, when the distal section of the lead body is implanted, for example, within a cardiac vein, the lead buckles to bring the electrode into closer contact with surrounding tissue.

Implantable medical electrical lead bodies providing improved electrode contact

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Cleveland Heights, OH, United States of America

Nicole L Werner