US 11,832,968 B2
Confidence of arrhythmia detection
David L. Perschbacher, Coon Rapids, MN (US); Deepa Mahajan, Roseville, MN (US); Krzysztof Z. Siejko, Maple Grove, MN (US); Keith L Herrmann, Minneapolis, MN (US); and Jonathan Walter Krueger, New Richmond, WI (US)
Assigned to Cardiac Pacemakers, Inc., St. Paul, MN (US)
Filed by Cardiac Pacemakers, Inc., St. Paul, MN (US)
Filed on Apr. 4, 2017, as Appl. No. 15/478,652.
Claims priority of provisional application 62/319,055, filed on Apr. 6, 2016.
Prior Publication US 2017/0290550 A1, Oct. 12, 2017
Int. Cl. A61B 5/02 (2006.01); A61B 5/00 (2006.01); A61N 1/362 (2006.01); A61N 1/37 (2006.01); A61B 5/361 (2021.01); A61B 5/364 (2021.01); A61B 5/024 (2006.01); A61B 5/07 (2006.01)
CPC A61B 5/7221 (2013.01) [A61B 5/02405 (2013.01); A61B 5/076 (2013.01); A61B 5/361 (2021.01); A61B 5/364 (2021.01); A61B 5/4836 (2013.01); A61B 5/686 (2013.01); A61B 5/7203 (2013.01); A61B 5/746 (2013.01); A61N 1/3621 (2013.01); A61N 1/3627 (2013.01); A61N 1/3704 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system, comprising:
a physiological sensor circuit configured to receive physiological information including a physiological signal sensed from a subject;
a first arrhythmia detector circuit configured to detect arrhythmic events each comprising a plurality of heart beats and indicating at least a presence or an absence of cardiac arrhythmia using the received physiological information;
a confidence indicator generator circuit configured to:
generate respective confidence scores for the detected arrhythmic events by the first arrhythmia detector circuit, the confidence scores indicating levels of confidence of the presence of the cardiac arrhythmia in the respective detected arrhythmic events, the confidence scores including at least a high confidence score and a low confidence score, the low confidence score lower than the high confidence score; and
identify, from the detected arrhythmic events by the first arrhythmia detector circuit, a first set of arrhythmic events with respective confidence scores below a confidence threshold, and a second set of arrhythmia events with respective confidence scores above the confidence threshold;
a second arrhythmia detector circuit configured to confirm or reject only the first set of the arrhythmic events but not the second set of the arrhythmic events detected by the first arrhythmia detector circuit;
wherein the confidence indicator generator circuit is configured to generate respective confirmatory confidence scores of the confirmed respective detected arrhythmic events of the second arrhythmia detector circuit;
a prioritizer circuit configured to determine respective priorities of the detected arrhythmic events based on the respective confidence scores and the respective confirmatory confidence scores; and
an output circuit configured to prioritize display of at least a portion of the received physiological signal corresponding to at least one of the detected arrhythmic events according to the determined priorities.