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    GUIDING ANTI-TACHYARRHYTHMIA PACING TRAIN DESIGN AND ELECTRODE SELECTION WITH ELECTROGRAMS
    3.
    发明申请
    GUIDING ANTI-TACHYARRHYTHMIA PACING TRAIN DESIGN AND ELECTRODE SELECTION WITH ELECTROGRAMS 有权

    公开(公告)号：US20220161032A1

    公开(公告)日：2022-05-26

    申请号：US17493539

    申请日：2021-10-04

    Applicant: Medtronic, Inc.

    Inventor： Troy E. Jackson

    IPC: A61N1/362 ,  A61N1/368

    Abstract: An example medical device system includes therapy delivery circuitry configured to deliver anti-tachycardia pacing (ATP) therapy to a heart of a patient via electrodes communicatively coupled to the therapy delivery circuitry. The ATP therapy includes one or more ATP trains. The medical device system also includes processing circuitry configured determine a first propagation time based on a comparison of features in a local electrogram and a far-field electrogram, such as the time from a fiducial point in the local electrogram and QRS onset in the far-field electrogram. The processing circuitry is also configured to determine, based on the first propagation time, a number of pulses to achieve a second propagation time and control the therapy delivery circuitry to deliver the ATP train of at least the number of pulses.

    Latency-based adaptation of anti-tachyarrhythmia pacing therapy
    4.
    发明授权
    Latency-based adaptation of anti-tachyarrhythmia pacing therapy 有权

    公开(公告)号：US10981009B2

    公开(公告)日：2021-04-20

    申请号：US16268941

    申请日：2019-02-06

    Applicant: Medtronic, Inc.

    Inventor： Troy E. Jackson ,  Vincent P. Ganion

    IPC: A61N1/362 ,  A61N1/05 ,  A61N1/37 ,  A61N1/375 ,  A61N1/39

    Abstract: A medical device comprises therapy delivery circuitry and processing circuitry. The therapy delivery circuitry is configured to deliver anti-tachycardia pacing (ATP) therapy to a heart of a patient. The ATP therapy includes one or more pulse trains and each of the one or more pulse trains includes a plurality of pacing pulses. The processing circuitry is configured to, for at least one of the plurality of pacing pulses of at least one of the one or more pulse trains, determine at least one latency metric of an evoked response of the heart to the pacing pulse. The processing circuitry is further configured to modify the ATP therapy based on the at least one latency metric.

    DETERMINING PACED CARDIAC DEPOLORAZIATION WAVEFORM MORPHOLOGICAL TEMPLATES
    7.
    发明申请
    DETERMINING PACED CARDIAC DEPOLORAZIATION WAVEFORM MORPHOLOGICAL TEMPLATES 有权
    确定过氧化物歧化酶波形变态模式

    公开(公告)号：US20170035315A1

    公开(公告)日：2017-02-09

    申请号：US15295352

    申请日：2016-10-17

    Applicant: Medtronic, Inc.

    Inventor： Troy E. Jackson

    IPC: A61B5/0464 ,  A61N1/39 ,  A61N1/37 ,  A61B5/11 ,  A61B5/00

    CPC classification number: A61B5/0464 ,  A61B5/1118 ,  A61B5/686 ,  A61N1/0587 ,  A61N1/3622 ,  A61N1/371 ,  A61N1/37205 ,  A61N1/3937

    Abstract: Techniques for determining paced cardiac depolarization waveform morphological templates are described. For example, an implantable medical device (IMD) may sense a cardiac electrogram of a heart, identify cardiac depolarizations within the cardiac electrogram, and determine that the cardiac depolarizations are paced cardiac depolarizations resulting from delivery of a pacing pulse to the heart by another IMD without detecting the pacing pulse and without communicating with the other IMD. The IMD may identify paced cardiac depolarization waveforms of the paced cardiac depolarizations, determine a paced cardiac depolarization waveform morphological template based on the identified paced cardiac depolarization waveforms, determine a normal cardiac depolarization waveform morphological template based on the paced cardiac depolarization waveform morphological template, and compare the normal cardiac depolarization waveform morphological template to subsequent cardiac depolarization waveforms. The IMD may detect a cardiac tachyarrhythmia based on the above comparison.

    Abstract translation: 描述了用于确定起搏心脏去极化波形形态模板的技术。 例如，可植入医疗装置（IMD）可以感测心脏的心脏电图，识别心脏电图中的心脏去极化，并且确定心脏去极化是由心脏去极化引起的，由心脏由另一个IMD递送到起搏脉冲 而不检测起搏脉冲，而不与其他IMD通信。 IMD可以鉴定节奏心脏去极化的节奏心脏去极化波形，基于所识别的起搏心脏去极化波形确定起搏心脏去极化波形形态模板，基于节奏心脏去极化波形态模板确定正常心脏去极化波形态模板，以及 将正常心脏去极化波形态模板与随后的心脏去极化波形进行比较。 IMD可以基于上述比较来检测心脏快速性心律失常。

    FAR-FIELD R-WAVE DETECTION TO CONTROL ATRIAL PACE TIMING IN A DUAL-CHAMBER LEADLESS PACEMAKER
    9.
    发明申请
    FAR-FIELD R-WAVE DETECTION TO CONTROL ATRIAL PACE TIMING IN A DUAL-CHAMBER LEADLESS PACEMAKER 有权
    用于控制双室无人驾驶员的时域时域的现场R波检测

    公开(公告)号：US20160067486A1

    公开(公告)日：2016-03-10

    申请号：US14510637

    申请日：2014-10-09

    Applicant: Medtronic, Inc.

    Inventor： Mark L. Brown ,  Saul E. Greenhut ,  Troy E. Jackson

    IPC: A61N1/365 ,  A61N1/375 ,  A61B5/04 ,  A61N1/368

    CPC classification number: A61N1/365 ,  A61B5/04012 ,  A61B5/0428 ,  A61B5/0452 ,  A61B5/4836 ,  A61B5/686 ,  A61B5/725 ,  A61B5/7282 ,  A61N1/368 ,  A61N1/3704 ,  A61N1/371 ,  A61N1/37205 ,  A61N1/3756

    Abstract: A method for sensing far-field R-waves in a leadless, intracardiac pacemaker implanted in an atrium of a patient's heart may involve sensing an electrical signal generated by the heart with two electrodes and a first sensing channel and/or a second sensing channel of the pacemaker, comparing a first timing marker from the first sensing channel with a second timing marker from the second sensing channel, and either determining that the sensed signal is a P-wave, if the first and second timing markers indicate that the sensed signal was sensed by the first and second sensing channels within a predetermined threshold of time from one another, or determining that the sensed signal is a far-field R-wave, if the sensed signal is sensed by the second sensing channel and not sensed by the first sensing channel.

    Abstract translation: 用于感测植入患者心脏的心房中的无引导心脏起搏器中的远场R波的方法可包括用两个电极和第一感测通道和/或第二感测通道感测由心脏产生的电信号 所述起搏器将来自所述第一感测通道的第一定时标记与来自所述第二感测通道的第二定时标记进行比较，以及如果所述第一和第二定时标记指示所感测到的信号为 在第一感测通道和第二感测通道之间在预定的时间阈值之内彼此感测，或者如果感测到的信号由第二感测通道感测并且不被第一感测通道感测到，则确定感测到的信号是远场R波 感应通道。

    Utilization of morphology discrimination after T-wave oversensing determination for underlying rhythms in the therapy zone
    10.
    发明授权
    Utilization of morphology discrimination after T-wave oversensing determination for underlying rhythms in the therapy zone 有权
    在治疗区的下层节律的T波过度测定之后利用形态学鉴别

    公开(公告)号：US08914106B2

    公开(公告)日：2014-12-16

    申请号：US13832162

    申请日：2013-03-15

    Applicant: Medtronic, Inc.

    Inventor： Sandra B. Charlton ,  Troy E. Jackson ,  Benjamin P. Rhodes

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

    CPC classification number: A61N1/3931 ,  A61N1/3622 ,  A61N1/3925 ,  A61N1/395 ,  A61N1/3962 ,  A61N1/3987

    Abstract: A medical device and method for detecting and classifying cardiac rhythm episodes that includes a sensing module to sense cardiac events; a therapy delivery module, and a detection module configured to determine intervals between the sensed cardiac events, determine a predetermined cardiac episode is occurring in response to the determined intervals, determine whether a ventricular rate is greater than an atrial rate in response to the determined intervals, determine whether oversensing is occurring in response to the ventricular rate being greater than the atrial rate, adjust the determined intervals in response to oversensing occurring to generate an adjusted ventricular rate, determine whether the cardiac episode is occurring in response to the adjusted ventricular rate, perform a supraventricular tachycardia (SVT) discrimination analysis in response to the cardiac episode occurring in response to the adjusted ventricular rate, and control the therapy delivery module to deliver therapy in response to the SVT discrimination analysis.

    Abstract translation: 一种用于检测和分类心律发作的医疗装置和方法，其包括用于感测心脏事件的感测模块; 治疗递送模块和被配置为确定感测的心脏事件之间的间隔的检测模块，确定响应于所确定的间隔发生的预定心脏发作，响应于所确定的间隔来确定心室率是否大于心房率 确定是否响应于心室率超过心房率而发生过敏，根据发生的过度调整确定的间隔以产生调整的心室率，确定心脏发作是否响应于调整的心室率而发生， 执行室上性心动过速（SVT）辨别分析以响应于调整的心室率发生的心脏发作，并且响应于SVT鉴别分析来控制治疗递送模块进行治疗。

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