US 12,433,544 B2
Methods and systems for enhanced posture sensing
Xing Pei, Ventura, CA (US)
Assigned to Pacesetter, Inc., Sylmar (CA)
Filed by Pacesetter, Inc., Sylmar, CA (US)
Filed on Apr. 26, 2022, as Appl. No. 17/660,777.
Claims priority of provisional application 63/195,810, filed on Jun. 2, 2021.
Prior Publication US 2022/0386963 A1, Dec. 8, 2022
Int. Cl. A61B 5/00 (2006.01); A61B 5/11 (2006.01); A61B 5/352 (2021.01); A61B 5/355 (2021.01)
CPC A61B 5/725 (2013.01) [A61B 5/1116 (2013.01); A61B 5/352 (2021.01); A61B 5/355 (2021.01); A61B 5/4836 (2013.01); A61B 5/686 (2013.01); A61B 2560/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A computer implemented method, comprising:
under control of one or more processors of an implantable medical device (IMD), where the one or more processors are configured with specific executable instructions to:
obtain motion data indicative of a first posture;
determine a first sense setting for cardiac activity (CA) signals sensed by at least one electrode of the IMD based on the first posture;
obtain, with the at least one electrode, CA signals for a series of beats while applying the first sense setting;
obtain a characteristic of interest (COI) from the CA signals for the series of beats;
periodically obtain additional cardiac signals;
in response to obtaining the additional cardiac signals, calculate with a self-learning algorithm, on a time dependent basis that includes a determined time period, a statistical indicator at the first posture from the COI over the series of beats based on the COI from the additional CA signals;
derive and implement a second sense setting for the additional CA signals sensed by the at least one electrode based on the first sense setting and the statistical indicator of the COI.