US 11,938,326 B2
Methods and implantable medical systems that implement exposure modes of therapy that allow for continued operation during exposure to a magnetic disturbance
Hyun J. Yoon, Vadnais Heights, MN (US); Wade M. Demmer, Coon Rapids, MN (US); Matthew J. Hoffman, Saint Paul, MN (US); Robert A. Betzold, Fridley, MN (US); Jonathan D. Edmonson, Blaine, MN (US); Michael L. Ellingson, St. Louis Park, MN (US); Mark K. Erickson, Brooklyn Park, MN (US); Ben W. Herberg, Andover, MN (US); Juliana E. Pronovici, New Hope, MN (US); James D. Reinke, Maple Grove, MN (US); Todd J. Sheldon, North Oaks, MN (US); and Paul R. Solheim, Blaine, MN (US)
Assigned to Medtronic, Inc., Minneapolis, MN (US)
Filed by Medtronic, Inc., Minneapolis, MN (US)
Filed on Feb. 18, 2022, as Appl. No. 17/675,508.
Application 17/675,508 is a division of application No. 16/600,751, filed on Oct. 14, 2019, granted, now 11,253,707.
Application 16/600,751 is a division of application No. 15/487,736, filed on Apr. 14, 2017, granted, now 10,441,798, issued on Oct. 15, 2019.
Claims priority of provisional application 62/323,574, filed on Apr. 15, 2016.
Prior Publication US 2022/0168578 A1, Jun. 2, 2022
Int. Cl. A61N 1/37 (2006.01); A61N 1/368 (2006.01); A61N 1/39 (2006.01)
CPC A61N 1/3718 (2013.01) [A61N 1/3684 (2013.01); A61N 1/3688 (2013.01); A61N 1/3925 (2013.01); A61N 1/39622 (2017.08)] 20 Claims
OG exemplary drawing
 
1. A method for controlling an exposure mode of therapy of an implantable medical device comprising:
determining whether a sensed heart rate of a patient exceeds a first threshold;
when the sensed heart rate does not exceed the first threshold, then selecting a pacing rate for the exposure mode that is equal to the sensed heart rate plus a first adjustment;
when the sensed heart rate does exceed the first threshold, determining that the sensed heart rate does not exceed a second threshold that is higher than the first threshold and/or a ventricular pacing percentage does not exceed a pacing percentage threshold;
when the sensed heart rate does not exceed the second threshold and/or the ventricular pacing percentage does not exceed the pacing percentage threshold, then selecting the pacing rate for the exposure mode that is equal to the sensed heart rate plus a second adjustment; and
at least one of causing an external device to provide an instruction about the exposure mode to the implantable medical device and/or causing the implantable medical device to enter the exposure mode.