公开(公告)号：US20180311504A1

公开(公告)日：2018-11-01

申请号：US15497546

申请日：2017-04-26

Applicant: Medtronic, Inc.

Inventor： Jian CAO ,  Alan CHENG

IPC: A61N1/365 ,  A61B5/04 ,  A61B5/0464 ,  A61N1/39 ,  A61N1/372

CPC classification number: A61N1/36592 ,  A61B5/04012 ,  A61B5/042 ,  A61B5/0452 ,  A61B5/04525 ,  A61B5/0464 ,  A61B5/0468 ,  A61B5/4836 ,  A61B5/6869 ,  A61B5/7282 ,  A61N1/0504 ,  A61N1/0563 ,  A61N1/365 ,  A61N1/3704 ,  A61N1/37217 ,  A61N1/37247 ,  A61N1/39622 ,  A61N1/3987

Abstract: An implantable medical device performs a method that includes detecting a cardiac event interval that is greater than a P-wave oversensing threshold interval. In response to detecting the cardiac event interval greater than the P-wave oversensing threshold interval, the device determines the amplitude of the sensed cardiac signal and withholds restarting a pacing interval in response to the amplitude satisfying P-wave oversensing criteria. A pacing pulse may be generated in response to the pacing interval expiring without sensing an intrinsic cardiac electrical event that is not detected as a P-wave oversensing event.

公开(公告)号：US20220266034A1

公开(公告)日：2022-08-25

申请号：US17743436

申请日：2022-05-12

Applicant: Medtronic, Inc.

Inventor： Jian CAO ,  Alan CHENG

IPC: A61N1/365 ,  A61N1/39 ,  A61N1/372 ,  A61N1/37 ,  A61B5/283 ,  A61B5/349

Abstract: An implantable medical device performs a method that includes detecting a cardiac event interval that is greater than a P-wave oversensing threshold interval. In response to detecting the cardiac event interval greater than the P-wave oversensing threshold interval, the device determines the amplitude of the sensed cardiac signal and withholds restarting a pacing interval in response to the amplitude satisfying P-wave oversensing criteria. A pacing pulse may be generated in response to the pacing interval expiring without sensing an intrinsic cardiac electrical event that is not detected as a P-wave oversensing event.