US 9,808,628 B2
Mode switching by a ventricular leadless pacing device
Todd J Sheldon, North Oaks, MN (US); and Wade M Demmer, Coon Rapids, MN (US)
Assigned to Medtronic, Inc., Minneapolis, MN (US)
Filed by Medtronic, Inc., Minneapolis, MN (US)
Filed on Nov. 14, 2016, as Appl. No. 15/350,708.
Application 15/350,708 is a continuation of application No. 14/538,518, filed on Nov. 11, 2014, granted, now 9,492,668.
Application 14/538,518 is a continuation of application No. 14/538,486, filed on Nov. 11, 2014, granted, now 9,492,669.
Prior Publication US 2017/0056670 A1, Mar. 2, 2017
This patent is subject to a terminal disclaimer.
Int. Cl. A61N 1/00 (2006.01); A61N 1/365 (2006.01); A61N 1/375 (2006.01); A61N 1/368 (2006.01)
CPC A61N 1/36592 (2013.01) [A61N 1/3688 (2013.01); A61N 1/3756 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A system having at least a leadless pacing device, the system comprising:
means for detecting an electric cardiac signal means for detecting a first atrial activation event based on the electrical cardiac signal;
means for determining, based on the electrical cardiac signal, a second atrial activation event was not detected within a detection window that begins at the first atrial activation event; and
means for controlling the leadless pacing device to deliver pacing pulses to a ventricle of a heart according to an asynchronous ventricular pacing mode based on the determination that the second atrial activation event was not detected within the detection window.