US 11,998,750 B2
Implantable medical device and method for determining his bundle pacing capture
Todd J. Sheldon, North Oaks, MN (US); Elizabeth A. Mattson, Eagan, MN (US); Eric R. Williams, Maple Grove, MN (US); Zhongping Yang, Woodbury, MN (US); and Shawn M. Campbell, Davidson, NC (US)
Assigned to Medtronic, Inc., Minneapolis, MN (US)
Filed by Medtronic, Inc., Minneapolis, MN (US)
Filed on Dec. 20, 2022, as Appl. No. 18/069,227.
Application 18/069,227 is a continuation of application No. 17/321,828, filed on May 17, 2021, granted, now 11,547,859.
Application 17/321,828 is a continuation of application No. 16/183,902, filed on Nov. 8, 2018, granted, now 11,007,369, issued on May 18, 2021.
Claims priority of provisional application 62/663,619, filed on Apr. 27, 2018.
Claims priority of provisional application 62/583,082, filed on Nov. 8, 2017.
Prior Publication US 2023/0125541 A1, Apr. 27, 2023
Int. Cl. A61N 1/37 (2006.01); A61B 5/00 (2006.01); A61B 5/29 (2021.01); A61B 5/361 (2021.01); A61B 5/363 (2021.01); A61B 5/366 (2021.01); A61N 1/365 (2006.01); A61N 1/372 (2006.01); A61N 1/378 (2006.01); A61N 1/39 (2006.01); A61N 1/375 (2006.01)
CPC A61N 1/371 (2013.01) [A61B 5/29 (2021.01); A61B 5/361 (2021.01); A61B 5/363 (2021.01); A61B 5/366 (2021.01); A61B 5/4836 (2013.01); A61B 5/686 (2013.01); A61N 1/365 (2013.01); A61N 1/3714 (2013.01); A61N 1/37223 (2013.01); A61N 1/37247 (2013.01); A61N 1/3787 (2013.01); A61N 1/3956 (2013.01); A61N 1/3756 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A medical device, comprising:
a sensing circuit configured to sense at least a first cardiac electrical signal produced by a heart via a first sensing electrode vector;
a therapy delivery circuit configured to deliver a first pacing pulse having a first pacing pulse energy; and
a control circuit configured to detect non-selective capture of both of myocardial tissue and at least a portion of a ventricular conduction system by the first pacing pulse based on an analysis of at least the first cardiac electrical signal by:
determining a time interval from the first pacing pulse to a QRS signal of the first cardiac electrical signal;
comparing the time interval to a first time interval threshold, the first time interval threshold being a selective capture time interval threshold corresponding to capture of the ventricular conduction system without capture of myocardial tissue; and
detecting the non-selective capture of both of myocardial tissue and at least the portion of the ventricular conduction system based on at least the time interval from the first pacing pulse to the QRS signal being less than the first time interval threshold.