US 11,911,166 B2
Method and apparatus for implantation of a pacing electrode
Xiaohong Zhou, Woodbury, MN (US); Wade M. Demmer, Coon Rapids, MN (US); and Robert W. Stadler, Shoreview, MN (US)
Assigned to Medtronic, Inc., Minneapolis, MN (US)
Filed by Medtronic, Inc., Minneapolis, MN (US)
Filed on Jul. 17, 2020, as Appl. No. 16/931,567.
Claims priority of provisional application 62/876,634, filed on Jul. 20, 2019.
Prior Publication US 2021/0015389 A1, Jan. 21, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61N 1/36 (2006.01); A61B 5/366 (2021.01); A61B 5/339 (2021.01); A61B 5/283 (2021.01); A61N 1/05 (2006.01); A61N 1/362 (2006.01); A61N 1/365 (2006.01); A61B 90/00 (2016.01); A61B 5/06 (2006.01); A61N 1/37 (2006.01); A61N 1/372 (2006.01); A61B 17/00 (2006.01)
CPC A61B 5/366 (2021.01) [A61B 5/068 (2013.01); A61B 5/283 (2021.01); A61B 5/339 (2021.01); A61B 90/37 (2016.02); A61N 1/056 (2013.01); A61N 1/362 (2013.01); A61N 1/36521 (2013.01); A61B 2017/00243 (2013.01); A61N 1/371 (2013.01); A61N 1/372 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A medical device system, comprising:
a sensing circuit configured to sense a first cardiac electrical signal;
a processor configured to:
receive one or more cardiac electrical signals including at least the first cardiac electrical signal;
determine at least one feature of the first cardiac electrical signal;
compare the at least one feature to left bundle branch signal criteria; and
determine a left bundle branch signal in response to the at least one feature meeting the left bundle branch signal criteria; and
a display unit configured to generate a user feedback signal comprising at least one of an audible progress indicator or a visual progress indicator for indicating advancement of a pacing electrode into a left portion of a ventricular septum, the display unit configured to adjust the user feedback signal in response to the processor determining the left bundle branch signal; and
a pulse generator configured to generate pacing pulses for delivery via the pacing electrode in the left portion of the ventricular septum; and
wherein the processor is further configured to determine the at least one feature from the first cardiac electrical signal following delivery of a pacing pulse via the pacing electrode by:
detecting a pacing evoked response signal from the first cardiac electrical signal; and
determining the at least one feature by determining an activation time interval from the delivered pacing pulse to the pacing evoked response signal.