US 11,730,967 B2
Systems and methods for improved his bundle and backup pacing timing
Xiaoyi Min, Camarillo, CA (US); Wenwen Li, San Jose, CA (US); Yun Qiao, Sunnyvale, CA (US); and Aditya Goil, Stevenson Ranch, CA (US)
Assigned to Pacesetter, Inc., Sylmar, CA (US)
Filed by Pacesetter, Inc., Sylmar, CA (US)
Filed on Jun. 18, 2020, as Appl. No. 16/904,837.
Prior Publication US 2021/0393967 A1, Dec. 23, 2021
Int. Cl. A61N 1/37 (2006.01); A61N 1/365 (2006.01); A61N 1/39 (2006.01)
CPC A61N 1/371 (2013.01) [A61N 1/36521 (2013.01); A61N 1/36592 (2013.01); A61N 1/3937 (2013.01); A61N 1/39622 (2017.08)] 22 Claims
OG exemplary drawing
 
1. A system comprising:
a HIS electrode configured to be located proximate to a HIS bundle;
a pulse generator coupled to the HIS electrode and configured to deliver HIS bundle pacing (HBP);
a right atrial (RA) electrode configured to be located in a right atrium;
sensing circuitry coupled to the RA electrode and configured to define an RA sensing channel that does not utilize the HIS electrode;
a memory including program instructions;
a processor, when executing the program instructions, configured to:
collect cardiac activity (CA) signals over the RA sensing channel utilizing the RA electrode, the CA signals including a far field (FF) component associated with a ventricular event (VE);
analyze the FF component to identify first and second FF component (FFC) characteristics of interest (COI) of the ventricular event;
to apply a first capture class (CC) discriminator to distinguish between first and second capture classes based on the first FFC COI,
wherein the first capture class includes first and second capture types corresponding to two out of i) myocardial-only capture, ii) nonselective capture, iii) selective capture, or iv) intrinsic capture, and
wherein the second capture class includes a third capture type out of the i) myocardial-only capture, ii) nonselective capture, iii) selective capture, or iv) intrinsic capture;
apply a second CC discriminator to distinguish between at least one of i) the first and second capture types within the first capture class based on the second FFC COI; and
manage the HBP based on distinctions by the first and second CC discriminators.