	US 12,138,461 B2
	Input switching in a ventricular intracardiac pacemaker
Wade M. Demmer, Coon Rapids, MN (US); Yong K. Cho, Excelsior, MN (US); Mark K. Erickson, Brooklyn Park, MN (US); and Todd J. Sheldon, North Oaks, MN (US)
Assigned to Medtronic, Inc., Minneapolis, MN (US)
Filed by Medtronic, Inc., Minneapolis, MN (US)
Filed on Aug. 2, 2021, as Appl. No. 17/391,118.
Application 17/391,118 is a continuation of application No. 16/449,517, filed on Jun. 24, 2019, granted, now 11,077,307.
Application 16/449,517 is a continuation of application No. 15/377,717, filed on Dec. 13, 2016, granted, now 10,328,270, issued on Jun. 25, 2019.
Prior Publication US 2021/0353946 A1, Nov. 18, 2021
Int. Cl. A61N 1/368 (2006.01); A61N 1/365 (2006.01); A61N 1/37 (2006.01); A61N 1/372 (2006.01); A61N 1/375 (2006.01); A61N 1/362 (2006.01)

CPC A61N 1/3688 (2013.01) [A61N 1/36514 (2013.01); A61N 1/36585 (2013.01); A61N 1/3682 (2013.01); A61N 1/3704 (2013.01); A61N 1/37288 (2013.01); A61N 1/3756 (2013.01); A61N 1/3627 (2013.01)]

21 Claims

1. A medical device, comprising:

a sensing circuit configured to:

sense a first physiological cardiac signal;

sense first atrial event signals from the first physiological cardiac signal;

sense a second physiological cardiac signal; and

sense second atrial event signals from the second physiological cardiac signal; and

a control circuit coupled to the sensing circuit and configured to:

receive an atrial event input from the sensing circuit based on a first selected one of the first atrial event signals sensed by the sensing circuit or the second atrial event signals sensed by the sensing circuit;

determine that atrial event input switching criteria are met; and

switch to receiving the atrial event input based on a second selected one of the first atrial event signals sensed by the sensing circuit or the second atrial event signals sensed by the sensing circuit in response to the atrial event input switching criteria being met.