Patent ID: 7515970
Filing Date: 2009-04-07
Classification: A61N

Abstract:
1. A lead comprising: a lead body extending from a proximal end to a distal end and having an intermediate portion; a first electrode disposed proximate the distal end of the lead body; a retaining member disposed proximate the distal end of the lead, wherein the retaining member is positioned relative to the first electrode such that the retaining member is configured to retain the first electrode within an interatrial septum when the retaining member is located on a left atrial side of the interatrial septum; and a defibrillation shock electrode disposed along the lead proximal from the first electrode and located relative to the retaining member such that the shock electrode is positioned against the interatrial septum when the retaining member is located on the left atrial side of the interatrial septum; wherein the lead body further includes a pre-biased curved section located between the retaining member and the defibrillation shock electrode, the pre-biased curved section located and configured to bias the defibrillation shock electrode toward the intratrial septum when the retaining member is located on the left atrial side of the interatrial septum.