US 12,303,699 B2
Method and device for avoiding competitive atrial pacing
Jordan Ireland Vance, North Hollywood, CA (US); Joy Catherine Wong, Los Angeles, CA (US); and Jennifer Rhude, Carbondale, IL (US)
Assigned to Pacesetter, Inc., Sylmar, CA (US)
Filed by Pacesetter, Inc., Sylmar, CA (US)
Filed on Dec. 9, 2022, as Appl. No. 18/078,399.
Application 18/078,399 is a continuation of application No. 17/395,780, filed on Aug. 6, 2021, granted, now 11,547,857.
Claims priority of provisional application 63/112,264, filed on Nov. 11, 2020.
Prior Publication US 2023/0103329 A1, Apr. 6, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61N 1/368 (2006.01); A61N 1/362 (2006.01); A61N 1/365 (2006.01)
CPC A61N 1/3684 (2013.01) [A61N 1/3622 (2013.01); A61N 1/36521 (2013.01); A61N 1/36585 (2013.01); A61N 1/3682 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An implantable medical device (IMD) for managing atrial (A) and ventricular (V) pacing, utilizing an atrial-ventricular (AV) delay, in connection with premature atrial contracts (PAC), comprising:
memory configured to store program instructions, including an atrial pace-on-PAC (APAC) interval and a programmed APAC AV delay;
a sensing channel configured to sense cardiac activity (CA) signals; and
one or more processors that, when executing the program instructions in a dual chamber mode, are configured to:
initiate an APAC interval when a first atrial refractory (AR) event occurs during a post ventricular atrial refractory period (PVARP) interval;
change the AV delay to the programmed APAC AV delay when a second AR event occurs during the APAC interval; and
maintain a count of APAC events corresponding to the second AR events occurring during the APAC interval.