US 12,186,572 B2
Implantable medical lead with shield
Vladimir P. Nikolski, Blaine, MN (US); Mark T. Marshall, Cape Coral, FL (US); Jeffrey D. Wilkinson, Vadnais Heights, MN (US); and Amy E. Thompson-Nauman, Ham Lake, MN (US)
Assigned to Medtronic, Inc., Minneapolis, MN (US)
Filed by Medtronic, Inc., Minneapolis, MN (US)
Filed on Feb. 25, 2021, as Appl. No. 17/185,784.
Claims priority of provisional application 62/982,790, filed on Feb. 28, 2020.
Prior Publication US 2021/0268297 A1, Sep. 2, 2021
Int. Cl. A61N 1/36 (2006.01); A61N 1/375 (2006.01); A61N 1/39 (2006.01); A61N 1/05 (2006.01)
CPC A61N 1/39622 (2017.08) [A61N 1/36182 (2013.01); A61N 1/37512 (2017.08); A61N 1/0504 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An implantable medical lead comprising:
a first defibrillation electrode and a second defibrillation electrode, the first and second defibrillation electrodes configured to deliver anti-tachyarrhythmia shocks;
a pace electrode disposed between the first defibrillation electrode and the second defibrillation electrode, the pace electrode configured to deliver a pacing pulse that generates an electric field proximate to the pace electrode; and
a shield,
wherein the shield is disposed over a portion of an outer surface of the pace electrode,
wherein the shield extends laterally away from the pace electrode in a deployed configuration,
wherein the shield is configured to impede the electric field in a direction from the pace electrode away from a heart in the deployed configuration,
wherein the shield is disposed between the first defibrillation electrode and the second defibrillation electrode, and
wherein the shield extends:
over only a portion of the first defibrillation electrode, wherein the portion of the first defibrillation electrode comprises an end of the first defibrillation electrode most proximal to the pace electrode, and
over only a portion of the second defibrillation electrode, wherein the portion of the second defibrillation electrode comprises an end of the second defibrillation electrode most proximal to the pace electrode.