US 11,666,763 B2
Anti-tachycardia pacing control in an implantable medical device system
Xusheng Zhang, Shoreview, MN (US); Yanina Grinberg, Plymouth, MN (US); Paul R. Solheim, Blaine, MN (US); Troy E. Jackson, Rogers, MN (US); Timothy A. Ebeling, Circle Pines, MN (US); and Vladimir P. Nikolski, Blaine, MN (US)
Assigned to Medtronic, Inc., Minneapolis, MN (US)
Filed by Medtronic, Inc., Minneapolis, MN (US)
Filed on Jun. 8, 2020, as Appl. No. 16/895,402.
Application 16/895,402 is a continuation of application No. 15/677,204, filed on Aug. 15, 2017, granted, now 10,675,471.
Prior Publication US 2020/0298003 A1, Sep. 24, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. A61N 1/362 (2006.01); A61N 1/39 (2006.01); A61N 1/365 (2006.01); A61N 1/372 (2006.01); A61N 1/375 (2006.01)
CPC A61N 1/3622 (2013.01) [A61N 1/3624 (2013.01); A61N 1/36507 (2013.01); A61N 1/37217 (2013.01); A61N 1/3987 (2013.01); A61N 1/39622 (2017.08); A61N 1/3756 (2013.01); A61N 1/37512 (2017.08); A61N 1/3918 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A medical device comprising:
a sensing circuit configured to receive a cardiac electrical signal;
a control circuit coupled to the sensing circuit and configured to:
detect a tachyarrhythmia from the cardiac electrical signal; and
start an anti-tachycardia pacing (ATP) therapy delay period in response to detecting the tachyarrhythmia; and
a therapy delivery circuit coupled to the control circuit, the therapy delivery circuit comprising a high voltage capacitor chargeable to a shock voltage amplitude for delivering a cardioversion/defibrillation shock pulse; the therapy delivery circuit configured to:
adjust a charge of the high voltage capacitor to a pacing voltage amplitude during the ATP therapy delay period, the pacing voltage amplitude being less than the shock voltage amplitude.
 
11. A method comprising:
receiving a cardiac electrical signal;
detecting a tachyarrhythmia from the cardiac electrical signal;
starting an anti-tachycardia pacing (ATP) therapy delay period in response to detecting the tachyarrhythmia; and
adjusting a charge of a high voltage capacitor to a pacing voltage amplitude during the ATP therapy delay period, wherein the high voltage capacitor is chargeable to a shock voltage amplitude for delivering a cardioversion/defibrillation shock pulse and the pacing voltage amplitude is less than the shock voltage amplitude.