公开(公告)号：US20170281033A1

公开(公告)日：2017-10-05

申请号：US15084511

申请日：2016-03-30

Applicant: Medtronic, Inc.

Inventor： Elise J. HIGGINS ,  Mark L. BROWN ,  Jian CAO

IPC: A61B5/0464 ,  A61N1/39 ,  A61B5/046 ,  A61B5/042 ,  A61B5/04 ,  A61B5/0456

CPC classification number: A61B5/0464 ,  A61B5/002 ,  A61B5/02405 ,  A61B5/04012 ,  A61B5/0422 ,  A61B5/0456 ,  A61B5/046 ,  A61B5/0472 ,  A61B5/4836 ,  A61B5/7264 ,  A61B2560/028 ,  A61N1/3925 ,  A61N1/3956 ,  A61N1/3987

Abstract: A medical device is configured to detect an atrial tachyarrhythmia episode. The device senses a cardiac signal, identifies R-waves in the cardiac signal attendant ventricular depolarizations and determines classification factors from the R-waves identified over a predetermined time period. The device classifies the predetermined time period as one of unclassified, atrial tachyarrhythmia and non-atrial tachyarrhythmia by comparing the determined classification factors to classification criteria. A classification criterion is adjusted from a first classification criterion to a second classification criterion after at least one time period being classified as atrial tachyarrhythmia. An atrial tachyarrhythmia episode is detected by the device in response to at least one subsequent time period being classified as atrial tachyarrhythmia based on the adjusted classification criterion.

公开(公告)号：US20230136836A1

公开(公告)日：2023-05-04

申请号：US18148040

申请日：2022-12-29

Applicant: Medtronic, Inc.

Inventor： Elise J. HIGGINS ,  Mark L. BROWN ,  Jian CAO

IPC: A61B5/363 ,  A61B5/00 ,  A61B5/024 ,  A61B5/287 ,  A61B5/316 ,  A61B5/352 ,  A61B5/361 ,  A61N1/39

Abstract: A medical device is configured to detect an atrial tachyarrhythmia episode. The device senses a cardiac signal, identifies R-waves in the cardiac signal attendant ventricular depolarizations and determines classification factors from the R-waves identified over a predetermined time period. The device classifies the predetermined time period as one of unclassified, atrial tachyarrhythmia and non-atrial tachyarrhythmia by comparing the determined classification factors to classification criteria. A classification criterion is adjusted from a first classification criterion to a second classification criterion after at least one time period being classified as atrial tachyarrhythmia. An atrial tachyarrhythmia episode is detected by the device in response to at least one subsequent time period being classified as atrial tachyarrhythmia based on the adjusted classification criterion.

公开(公告)号：US20240081717A1

公开(公告)日：2024-03-14

申请号：US18516695

申请日：2023-11-21

Applicant: Medtronic, Inc.

Inventor： Elise J. HIGGINS ,  Mark L. BROWN ,  Jian CAO

IPC: A61B5/363 ,  A61B5/00 ,  A61B5/024 ,  A61B5/287 ,  A61B5/316 ,  A61B5/352 ,  A61B5/361 ,  A61N1/39

CPC classification number: A61B5/363 ,  A61B5/02405 ,  A61B5/287 ,  A61B5/316 ,  A61B5/352 ,  A61B5/361 ,  A61B5/7264 ,  A61N1/3925 ,  A61N1/3956 ,  A61N1/3987 ,  A61B5/002 ,  A61B5/366 ,  A61B5/4836 ,  A61B2560/028 ,  A61N1/395 ,  A61N1/39622

Abstract: A medical device is configured to detect an atrial tachyarrhythmia episode. The device senses a cardiac signal, identifies R-waves in the cardiac signal attendant ventricular depolarizations and determines classification factors from the R-waves identified over a predetermined time period. The device classifies the predetermined time period as one of unclassified, atrial tachyarrhythmia and non-atrial tachyarrhythmia by comparing the determined classification factors to classification criteria. A classification criterion is adjusted from a first classification criterion to a second classification criterion after at least one time period being classified as atrial tachyarrhythmia. An atrial tachyarrhythmia episode is detected by the device in response to at least one subsequent time period being classified as atrial tachyarrhythmia based on the adjusted classification criterion.

公开(公告)号：US20180028086A1

公开(公告)日：2018-02-01

申请号：US15588810

申请日：2017-05-08

Applicant: Medtronic, Inc.

Inventor： Jian CAO ,  Mark L. BROWN ,  Elise J. HIGGINS ,  Paul J. DEGROOT

IPC: A61B5/0464 ,  A61B5/04 ,  A61B5/044 ,  A61B5/0432 ,  A61N1/365 ,  A61N1/362 ,  A61N1/39 ,  A61B5/042 ,  A61B5/00

CPC classification number: A61B5/0464 ,  A61B5/0006 ,  A61B5/002 ,  A61B5/02405 ,  A61B5/0245 ,  A61B5/04012 ,  A61B5/042 ,  A61B5/0422 ,  A61B5/0432 ,  A61B5/044 ,  A61B5/0456 ,  A61B5/0472 ,  A61B5/4836 ,  A61B5/686 ,  A61B5/6869 ,  A61B5/7264 ,  A61B5/7275 ,  A61B5/746 ,  A61B2505/07 ,  A61N1/3624 ,  A61N1/36507 ,  A61N1/3925 ,  A61N1/3956 ,  A61N1/3987 ,  G16H40/63 ,  G16H40/67 ,  G16H50/30

Abstract: A system for detecting an atrial tachyarrhythmia episode includes a medical device having sensing circuitry configured to receive a cardiac electrical signal from electrodes coupled to the medical device and a processor configured to detect an atrial tachyarrhythmia episode in response to a time duration of the cardiac electrical signal classified as an atrial tachyarrhythmia being greater than or equal to a first detection threshold. The processor is configured to determine if detection threshold adjustment criteria are met based on at least the detected first atrial tachyarrhythmia episode and adjust the first detection threshold to a second detection threshold different than the first detection threshold in response to the detection threshold adjustment criteria being met.

公开(公告)号：US20180338699A1

公开(公告)日：2018-11-29

申请号：US16051779

申请日：2018-08-01

Applicant: Medtronic, Inc.

Inventor： Elise J. HIGGINS ,  Mark L. BROWN ,  Jian CAO

IPC: A61B5/0464 ,  A61B5/024 ,  A61B5/04 ,  A61B5/042 ,  A61N1/39 ,  A61B5/0456 ,  A61B5/046 ,  A61B5/00 ,  A61B5/0472

CPC classification number: A61B5/0464 ,  A61B5/002 ,  A61B5/02405 ,  A61B5/04012 ,  A61B5/0422 ,  A61B5/0456 ,  A61B5/046 ,  A61B5/0472 ,  A61B5/4836 ,  A61B5/7264 ,  A61B2560/028 ,  A61N1/3925 ,  A61N1/395 ,  A61N1/3956 ,  A61N1/39622 ,  A61N1/3987

Abstract: A medical device is configured to detect an atrial tachyarrhythmia episode. The device senses a cardiac signal, identifies R-waves in the cardiac signal attendant ventricular depolarizations and determines classification factors from the R-waves identified over a predetermined time period. The device classifies the predetermined time period as one of unclassified, atrial tachyarrhythmia and non-atrial tachyarrhythmia by comparing the determined classification factors to classification criteria. A classification criterion is adjusted from a first classification criterion to a second classification criterion after at least one time period being classified as atrial tachyarrhythmia. An atrial tachyarrhythmia episode is detected by the device in response to at least one subsequent time period being classified as atrial tachyarrhythmia based on the adjusted classification criterion.

公开(公告)号：US20170281034A1

公开(公告)日：2017-10-05

申请号：US15084514

申请日：2016-03-30

Applicant: Medtronic, Inc.

Inventor： Elise J. HIGGINS ,  Mark L. BROWN ,  Jian CAO

IPC: A61B5/0464 ,  A61B5/042 ,  A61B5/046 ,  A61B5/00 ,  A61N1/39 ,  A61B5/04 ,  A61B5/0456

CPC classification number: A61B5/0464 ,  A61B5/0006 ,  A61B5/04012 ,  A61B5/0422 ,  A61B5/0456 ,  A61B5/046 ,  A61N1/3621 ,  A61N1/3925 ,  A61N1/3956 ,  A61N1/3987

Abstract: A medical device performs a method for detecting an atrial tachyarrhythmia by determining RR intervals between successive R-waves of a cardiac electrical signal and determining classification factors from the R-waves identified over a predetermined time period by determining at least a first classification factor correlated to variability of the RR intervals and a second classification factor indicating a presence of a ventricular tachyarrhythmia. The device classifies the cardiac electrical signal of the predetermined time period as unclassified, atrial tachyarrhythmia or non-atrial tachyarrhythmia by comparing the determined classification factors to classification criteria. The predetermined time period is classified as unclassified when the second classification factor indicates the presence of a ventricular tachyarrhythmia.