US 11,717,208 B2
Triggering storage of electrocardiographs for detected premature ventricular contractions (PVCs)
John E. Burnes, Blaine, MN (US); Shantanu Sarkar, Roseville, MN (US); and Gautham Rajagopal, Minneapolis, MN (US)
Assigned to Medtronic, Inc., Minneapolis, MN (US)
Filed by Medtronic, Inc., Minneapolis, MN (US)
Filed on Jul. 6, 2020, as Appl. No. 16/921,346.
Claims priority of provisional application 62/927,932, filed on Oct. 30, 2019.
Prior Publication US 2021/0128005 A1, May 6, 2021
Int. Cl. A61B 5/00 (2006.01); A61B 5/333 (2021.01); G16H 50/70 (2018.01); A61B 5/316 (2021.01); A61B 5/339 (2021.01); A61B 5/349 (2021.01); A61B 5/352 (2021.01)
CPC A61B 5/333 (2021.01) [A61B 5/316 (2021.01); A61B 5/339 (2021.01); A61B 5/349 (2021.01); A61B 5/352 (2021.01); G16H 50/70 (2018.01)] 20 Claims
OG exemplary drawing
 
1. A medical system comprising:
a plurality of electrodes configured to sense a cardiac electrogram (EGM) signal of a patient;
a memory; and
processing circuitry in communication with the memory, wherein the processing circuitry is configured to:
detect a premature ventricular contraction (PVC) within the cardiac EGM signal;
determine, based on PVC information stored in the memory and in response to detecting the PVC within the cardiac EGM signal, whether PVC storage criteria is met, wherein one or more PVCs indicated by the cardiac EGM signal meet the PVC storage criteria, and wherein one or more PVCs indicated by the cardiac EGM signal do not meet the PVC storage criteria;
in response to a determination that the PVC storage criteria is met, store a portion of the cardiac EGM signal associated with the PVC in the memory, wherein the portion of the cardiac EGM signal extends from a first time before an R-wave of the PVC to a second time after the R-wave of the PVC, and wherein the portion of the cardiac EGM signal indicates a morphology of the PVC; and
in response to a determination that the PVC storage criteria is not met, eschew storing the portion of the cardiac EGM signal associated with the PVC.