公开(公告)号：US20180028082A1

公开(公告)日：2018-02-01

申请号：US15551924

申请日：2016-02-18

Applicant: Medtronic, Inc.

Inventor： Shantanu SARKAR ,  Daniel L. HANSEN ,  Grant A. NEITZELL ,  Jerry D. REILAND ,  Ryan WYSZYNSKI

IPC: A61B5/046 ,  A61N1/365 ,  A61N1/362 ,  A61B5/0456 ,  A61B5/0452 ,  A61B5/00 ,  A61N1/39 ,  A61B5/04 ,  A61B5/0464

CPC classification number: A61B5/046 ,  A61B5/04 ,  A61B5/04012 ,  A61B5/04014 ,  A61B5/04017 ,  A61B5/0452 ,  A61B5/0456 ,  A61B5/0464 ,  A61B5/686 ,  A61N1/3624 ,  A61N1/36507 ,  A61N1/36592 ,  A61N1/395 ,  A61N1/3987

Abstract: Techniques and devices for implementing the techniques for adjusting atrial arrhythmia detection based on analysis of one or more P-wave sensing windows associated with one or more R-waves. An implantable medical device may determine signal characteristics of the cardiac signal within the P-wave sensing window, determine whether the cardiac signal within the sensing window corresponds to a P-wave based on the determined signal characteristics, determine a signal to noise ratio of the cardiac signal within the sensing window, update the arrhythmia score when the P wave is identified in the sensing window and the determined signal to noise ratio satisfies a signal to noise threshold.