US 12,005,263 B2
Charge balanced cardiac pacing from high voltage circuitry of an extra-cardiovascular implantable cardioverter defibrillator system
Yanina Grinberg, Plymouth, MN (US); Paul D. Baker, Oakdale, MN (US); Lonny V. Cabelka, San Clemente, CA (US); Craig W. Dorma, Albertville, MN (US); Timothy A. Ebeling, Circle Pines, MN (US); Michael W. Heinks, New Brighton, MN (US); James Vander Heyden, Maplewood, MN (US); Joseph Ippolito, Minneapolis, MN (US); Joel R. Lauer, Clearwater, MN (US); Robert T. Sawchuk, Roseville, MN (US); and Brian W. Schousek, Houlton, WI (US)
Assigned to Medtronic, Inc., Minneapolis, MN (US)
Filed by Medtronic, Inc., Minneapolis, MN (US)
Filed on Oct. 27, 2022, as Appl. No. 18/050,462.
Application 18/050,462 is a continuation of application No. 15/425,169, filed on Feb. 6, 2017, granted, now 11,524,169.
Prior Publication US 2023/0075919 A1, Mar. 9, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61N 1/39 (2006.01); A61N 1/05 (2006.01); A61N 1/365 (2006.01)
CPC A61N 1/3962 (2013.01) [A61N 1/05 (2013.01); A61N 1/36507 (2013.01); A61N 1/3925 (2013.01); A61N 1/39622 (2017.08); A61N 1/3981 (2013.01); A61N 1/3987 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A medical device comprising:
a high voltage therapy circuit including a capacitor chargeable to a shock voltage amplitude for delivering a cardioversion/defibrillation shock pulse; and
a control circuit configured to control the high voltage therapy circuit to:
charge the capacitor to a pacing voltage amplitude that is less than the shock voltage amplitude;
discharge the capacitor charged to the pacing voltage amplitude to deliver a first pulse for pacing a patient's heart, the first pulse having a first polarity; and
deliver a second pulse after the first pulse, the second pulse having a second polarity opposite the first polarity, the second pulse balancing an electrical charge delivered during the first pulse for pacing the patient's heart.