US 12,377,262 B2
Method and implantable medical device for reducing defibrillation impedance
Alexander R. Bornzin, Ventura, CA (US); Gene A. Bornzin, Los Angeles, CA (US); and Zoltan Somogyi, Ventura, CA (US)
Assigned to Pacesetter, Inc., Sylmar (CA)
Filed by Pacesetter, Inc., Sylmar, CA (US)
Filed on May 25, 2022, as Appl. No. 17/804,041.
Prior Publication US 2023/0381500 A1, Nov. 30, 2023
Int. Cl. A61N 1/05 (2006.01); A61B 17/34 (2006.01); A61N 1/375 (2006.01); A61N 1/39 (2006.01)
CPC A61N 1/0563 (2013.01) [A61B 17/3468 (2013.01); A61N 1/0504 (2013.01); A61N 1/0573 (2013.01); A61N 1/3752 (2013.01); A61N 1/3956 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An implantable medical device (IMD) comprising:
a lead configured to be operably coupled to a pulse generator and subcutaneously implanted within a patient, the lead including first electrode and a second electrode configured to receive electrical power from the pulse generator and to deliver high-voltage shocks for defibrillation therapy, wherein the first electrode has a first oblong cross-sectional shape with a major dimension that is at least 10 French (F), the first oblong cross-sectional shape being a rectangle with rounded corners,
wherein the first electrode is configured to be located in a parasternal area of the patient, the second electrode is configured to provide the high-voltage shocks for the defibrillation therapy, the second electrode is disposed between the first electrode and the pulse generator along a length of the lead, the second electrode having a second oblong cross-sectional shape that is different from the first oblong cross-sectional shape of the first electrode.