公开(公告)号：US20190308026A1

公开(公告)日：2019-10-10

申请号：US16449883

申请日：2019-06-24

Applicant: Medtronic, Inc.

Inventor： Xusheng ZHANG ,  Paul J. DEGROOT

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

Abstract: A cardiac medical system, such as an implantable cardioverter defibrillator (ICD) system, receives a cardiac electrical signal by and senses cardiac events when the signal crosses an R-wave sensing threshold. The system determines at least one sensed event parameter from the cardiac electrical signal for consecutive cardiac events sensed by the sensing circuit and compares the sensed event parameters to P-wave oversensing criteria. The system detects P-wave oversensing in response to the sensed event parameters meeting the P-wave oversensing criteria; and adjusts at least one of an R-wave sensing control parameter or a therapy delivery control parameter in response to detecting the P-wave oversensing.

公开(公告)号：US20190184164A1

公开(公告)日：2019-06-20

申请号：US16217207

申请日：2018-12-12

Applicant: Medtronic, Inc.

Inventor： Xusheng ZHANG ,  Jian CAO

IPC: A61N1/362 ,  A61N1/365 ,  A61B5/0456 ,  A61B5/0464 ,  A61N1/39

CPC classification number: A61N1/3621 ,  A61B5/0456 ,  A61B5/0464 ,  A61N1/3624 ,  A61N1/36592 ,  A61N1/3704 ,  A61N1/39622

Abstract: Techniques are described for discriminating SVT and, in particular, rapidly conducting AF. The techniques include detecting an onset of a fast rate of ventricular events sensed from a cardiac electrical signal and detecting a pause in the fast rate of ventricular sensed events. A threshold number of ventricular event intervals required to detect a ventricular tachyarrhythmia is detected with each of the threshold number of ventricular event intervals being less than a tachyarrhythmia detection interval. Detection of the ventricular tachyarrhythmia and an electrical stimulation therapy for treating the ventricular tachyarrhythmia are withheld in response to at least the pause being detected.

公开(公告)号：US20180303368A1

公开(公告)日：2018-10-25

申请号：US15496309

申请日：2017-04-25

Applicant: Medtronic, Inc.

Inventor： Xusheng ZHANG ,  Jian CAO ,  Yuanzhen LIU

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

Abstract: An implantable cardioverter defibrillator (ICD) performs a method that includes determining whether first criteria for detecting a ventricular tachyarrhythmia are met by a cardiac electrical signal. The ICD determines features from cardiac signal segment of a group of cardiac signal segments and determines whether a first portion of the features satisfy monomorphic waveform criteria and determines whether a second portion of the features satisfy supraventricular beat criteria. The ICD determines whether second criteria for detecting the ventricular tachyarrhythmia are met and withholds detecting of the ventricular tachyarrhythmia in response to the monomorphic waveform criteria and the supraventricular beat criteria being met.

公开(公告)号：US20180177425A1

公开(公告)日：2018-06-28

申请号：US15901935

申请日：2018-02-22

Applicant: MEDTRONIC, INC.

Inventor： Robert W. STADLER ,  Xusheng ZHANG

IPC: A61B5/0452 ,  A61N1/37 ,  A61N1/365 ,  A61N1/362 ,  A61B5/0464 ,  A61B5/11 ,  A61B5/0472 ,  A61B5/00

CPC classification number: A61B5/04525 ,  A61B5/0464 ,  A61B5/0472 ,  A61B5/1116 ,  A61B5/1118 ,  A61B5/686 ,  A61B5/7207 ,  A61N1/3621 ,  A61N1/3622 ,  A61N1/3624 ,  A61N1/3627 ,  A61N1/36507 ,  A61N1/36535 ,  A61N1/36542 ,  A61N1/3702

Abstract: A medical device system includes a cardioverter-defibrillator for detecting and treating ventricular tachycardia (VT). The medical device system includes a sensing module for sensing a cardiac signal from available cardiac signal sensing vectors. A control module generates morphology templates of the cardiac signals for multiple patient postures for each of the available sensing vectors and determines a set of posture-independent template features. An unknown cardiac rhythm is classified in response to comparing features of a cardiac signal received during the unknown rhythm to the set of posture-independent features.

公开(公告)号：US20180064949A1

公开(公告)日：2018-03-08

申请号：US15801522

申请日：2017-11-02

Applicant: Medtronic, Inc.

Inventor： Xusheng ZHANG

IPC: A61N1/39 ,  A61B5/04 ,  A61B5/042 ,  A61B5/0452 ,  A61B5/046 ,  A61B5/0464 ,  A61B5/00

CPC classification number: A61N1/3987 ,  A61B5/04011 ,  A61B5/0422 ,  A61B5/04525 ,  A61B5/046 ,  A61B5/0464 ,  A61B5/7207

Abstract: A method and medical device for detecting a cardiac event that includes sensing cardiac signals from a plurality of electrodes forming a first sensing vector sensing a first interval of the cardiac signal during a predetermined time period and a second sensing vector simultaneously sensing a second interval of the cardiac signal during the predetermined time period, identifying each of the first interval and the second interval as being one of shockable and not shockable in response to first processing of the first interval and the second interval and in response to second processing of one or both of the first interval and the second interval, the second processing being different from the first processing, and determining whether to deliver therapy for the cardiac event in response to identifying each of the first interval and the second interval as being one of shockable and not shockable in response to both the first processing and the second processing of the first interval and the second interval.

公开(公告)号：US20170113055A1

公开(公告)日：2017-04-27

申请号：US15344979

申请日：2016-11-07

Applicant: Medtronic, Inc.

Inventor： Raja N. GHANEM ,  Robert W. STADLER ,  Xusheng ZHANG

IPC: A61N1/39 ,  A61B5/00 ,  A61N1/362 ,  A61B5/046 ,  A61B5/0464 ,  A61N1/05 ,  A61B5/042 ,  A61B5/04

CPC classification number: A61N1/3987 ,  A61B5/04011 ,  A61B5/0422 ,  A61B5/0456 ,  A61B5/046 ,  A61B5/0464 ,  A61B5/0468 ,  A61B5/4836 ,  A61B5/686 ,  A61B5/7203 ,  A61B5/7221 ,  A61B5/7239 ,  A61N1/05 ,  A61N1/3621 ,  A61N1/3925 ,  A61N1/3956 ,  Y10S128/901 ,  Y10S128/902

Abstract: A method and apparatus for detecting a cardiac event in a medical device that includes sensing cardiac signals from a plurality of electrodes, the plurality of electrodes forming a first sensing vector and a second sensing vector, initiating charging of an energy storage device in response to the sensed cardiac signals, and determining whether a predetermined number of morphologies associated with cardiac signals sensed along the first sensing vector and the second sensing vector during corresponding sensing windows are indicative of the cardiac event.

公开(公告)号：US20160325106A1

公开(公告)日：2016-11-10

申请号：US14705010

申请日：2015-05-06

Applicant: Medtronic, Inc.

Inventor： Jian CAO ,  Xusheng ZHANG ,  Robert W. STADLER

IPC: A61N1/39 ,  A61B5/04 ,  A61B5/0452

CPC classification number: A61N1/3987 ,  A61B5/04012 ,  A61B5/0452 ,  A61B5/7264 ,  A61N1/3925 ,  A61N1/3956

Abstract: A medical device coupled to extracardiac electrodes is configured to analyze a cardiac electrical signal over a signal analysis segment to determine if shockable rhythm classification criteria are met, determine that TWOS detection criteria are met for the signal analysis segment when a predetermined number of TWOS analysis windows are classified as TWOS, and classify the signal analysis segment as non-shockable in response to determining that the TWOS detection criteria are met.

Abstract translation: 耦合到心外电极的医疗设备被配置为分析信号分析段上的心电信号，以确定是否满足可触电节律分类标准，当预定数量的TWOS分析窗口确定信号分析段的TWOS检测标准是否满足时 被归类为TWOS，并且根据确定满足TWOS检测标准来将信号分析段分类为不可震荡。

公开(公告)号：US20150305641A1

公开(公告)日：2015-10-29

申请号：US14687010

申请日：2015-04-15

Applicant: Medtronic, Inc.

Inventor： Robert W. STADLER ,  Xusheng ZHANG ,  Vinod SHARMA ,  James D. REINKE ,  Barbara J. SCHMID

IPC: A61B5/0464 ,  A61B5/04 ,  A61B5/00

CPC classification number: A61B5/0464 ,  A61B5/04017 ,  A61B5/686 ,  A61N1/3621 ,  A61N1/37264 ,  A61N1/37288 ,  A61N1/3756 ,  A61N1/3962 ,  A61N1/3987

Abstract: An implantable medical device comprises a sensing module configured to obtain electrical signals from one or more electrodes and a control module configured to process the electrical signals from the sensing module in accordance with a tachyarrhythmia detection algorithm to monitor for a tachyarrhythmia. The control module detects initiation of a pacing train delivered by a second implantable medical device, determines a type of the detected pacing train, and modifies the tachyarrhythmia detection algorithm based on the type of the detected pacing train.

Abstract translation: 可植入医疗装置包括被配置为从一个或多个电极获得电信号的感测模块和被配置为根据快速性心律失常检测算法来处理来自感测模块的电信号以控制快速性心律失常的控制模块。 控制模块检测由第二可植入医疗装置递送的起搏训练的起始，确定检测到的起搏训练的类型，并且基于检测到的起搏训练的类型来修改快速心律失常检测算法。

公开(公告)号：US20230285756A1

公开(公告)日：2023-09-14

申请号：US18320180

申请日：2023-05-18

Applicant: Medtronic, Inc.

Inventor： Xusheng ZHANG ,  Yanina GRINBERG ,  Paul R. SOLHEIM ,  Troy E. JACKSON ,  Timothy A. EBELING ,  Vladimir P. NIKOLSKI

IPC: A61N1/362 ,  A61N1/39 ,  A61N1/365 ,  A61N1/372

CPC classification number: A61N1/3622 ,  A61N1/3624 ,  A61N1/36507 ,  A61N1/37217 ,  A61N1/39622 ,  A61N1/3987 ,  A61N1/37512 ,  A61N1/3918

Abstract: An implantable medical device system is configured to detect a tachyarrhythmia from a cardiac electrical signal and start an ATP therapy delay period. The implantable medical device determines whether the cardiac electrical signal received during the ATP therapy delay period satisfies ATP delivery criteria. A therapy delivery module is controlled to cancel the delayed ATP therapy if the ATP delivery criteria are not met and deliver the delayed ATP therapy if the ATP delivery criteria are met.

公开(公告)号：US20230173279A1

公开(公告)日：2023-06-08

申请号：US18054137

申请日：2022-11-09

Applicant: Medtronic, Inc.

Inventor： Xusheng ZHANG ,  Saul E. GREENHUT ,  Yuanzhen LIU ,  Alfonso ARANDA HERNANDEZ ,  Michael W. HEINKS ,  Jean E. HUDSON ,  Timothy A. EBELING ,  Irving J. SANCHEZ ,  Scott R. HAWKINSON ,  Troy E. JACKSON ,  James VANDER HEYDEN

IPC: A61N1/362 ,  A61B5/363 ,  A61N1/365

CPC classification number: A61N1/362 ,  A61B5/363 ,  A61N1/36507

Abstract: A medical device is configured to determine tachyarrhythmia evidence in a cardiac signal segment received from a cardiac electrical signal sensed during a pacing escape interval started to schedule a pending cardiac pacing pulse. The medical device may delay the pending cardiac pacing pulse in response to determining the tachyarrhythmia evidence during the pacing escape interval.