US 12,245,876 B2
Detecting implantable medical device orientation change
Jonathan Bennett Shute, Minnetonka, MN (US); John D. Hatlestad, Maplewood, MN (US); and Scott R. Vanderlinde, Plymouth, MN (US)
Assigned to Cardiac Pacemakers, Inc., St Paul, MN (US)
Filed by Cardiac Pacemakers, Inc., St Paul, MN (US)
Filed on Apr. 27, 2023, as Appl. No. 18/140,056.
Application 18/140,056 is a continuation of application No. 16/894,943, filed on Jun. 8, 2020, granted, now 11,666,282.
Claims priority of provisional application 62/858,696, filed on Jun. 7, 2019.
Prior Publication US 2024/0074705 A1, Mar. 7, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 5/00 (2006.01); A61B 5/06 (2006.01); A61N 1/365 (2006.01)
CPC A61B 5/686 (2013.01) [A61B 5/067 (2013.01); A61B 5/6869 (2013.01); A61B 5/721 (2013.01); A61B 5/7239 (2013.01); A61B 5/725 (2013.01); A61B 5/74 (2013.01); A61N 1/36535 (2013.01); A61N 1/36542 (2013.01); A61B 2560/0223 (2013.01); A61B 2562/0219 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A medical device comprising:
a processor;
an acceleration sensor positioned in the medical device and configured to generate acceleration data, the acceleration data comprising a plurality of acceleration measurements; and
memory having embodied thereon computer-executable instructions that are configured to, when executed by the processor, cause the processor to:
obtain the acceleration data from the acceleration sensor,
determine, based at least in part on the acceleration data, that the medical device has flipped its orientation with respect to an axis, and
apply a correction to a heart sounds algorithm in response to determining that the medical device has flipped its orientation with respect to the axis.