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    Reducing false positive lead integrity alerts
    41.
    发明授权
    Reducing false positive lead integrity alerts 有权

    公开(公告)号：US10252068B2

    公开(公告)日：2019-04-09

    申请号：US14934542

    申请日：2015-11-06

    Applicant: Medtronic, Inc.

    Inventor： Bruce D. Gunderson ,  Jian Cao

    IPC: A61N1/39 ,  A61B5/00 ,  A61B5/0452 ,  A61B5/0464 ,  A61B5/0468 ,  A61N1/37 ,  A61N1/08

    Abstract: An implantable medical device having a sensing module and a control module is configured to receive a cardiac electrical signal and sense events from the cardiac electrical signal received via electrodes carried by a medical electrical lead when the medical electrical lead is coupled to the implantable medical device. The control module coupled is configured to detect non-sustained tachyarrhythmia (NST) episodes based on sensed event intervals and determine if the sensed event intervals during the detected NST episode satisfy oversensing criteria. If the oversensing criteria are satisfied, the control module determines whether the detected NST episode satisfies non-lead related oversensing criteria and withholds a lead integrity alert when the NST episode meeting the oversensing criteria is determined to satisfy non-lead related oversensing criteria.

    Atrial arrhythmia episode detection in a cardiac medical device
    42.
    发明授权
    Atrial arrhythmia episode detection in a cardiac medical device 有权

    公开(公告)号：US10045710B2

    公开(公告)日：2018-08-14

    申请号：US15084511

    申请日：2016-03-30

    Applicant: Medtronic, Inc.

    Inventor： Elise J. Higgins ,  Mark L. Brown ,  Jian Cao

    IPC: A61B5/04 ,  A61B5/0464 ,  A61B5/0456 ,  A61B5/046 ,  A61B5/042 ,  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.

    ATRIAL ARRHYTHMIA EPISODE DETECTION IN A CARDIAC MEDICAL DEVICE
    43.
    发明申请
    ATRIAL ARRHYTHMIA EPISODE DETECTION IN A CARDIAC MEDICAL DEVICE 有权
    心脏ARRHYTHMIA EPISODE检测在心脏医疗设备

    公开(公告)号：US20160213274A1

    公开(公告)日：2016-07-28

    申请号：US14604411

    申请日：2015-01-23

    Applicant: Medtronic, Inc.

    Inventor： Jian Cao ,  Paul J. DeGroot

    IPC: A61B5/0456 ,  A61B5/00 ,  A61B5/0468 ,  A61B5/04 ,  A61N1/37 ,  A61B5/0452

    CPC classification number: A61B5/0456 ,  A61B5/04525 ,  A61B5/046 ,  A61B5/4836 ,  A61B5/686 ,  A61N1/368 ,  A61N1/3702

    Abstract: A method and medical device for identifying a cardiac waveform that includes sensing cardiac signals, determining a plurality of RR-intervals in response to the sensed cardiac signals, determining R-waves associated with the plurality of RR-intervals, determining P-waves in response to the determined R-waves, determining parameters associated with each P-wave, determining relative changes of the P-waves in response to the determined parameters, determining whether each of the P-waves match within a match threshold in response to the determined relative changes, and generating a P-wave template in response to each of the P-waves matching within the match threshold.

    Abstract translation: 一种用于识别包括感测心脏信号的心脏波形的方法和医疗装置，响应于感测到的心脏信号确定多个RR间隔，确定与多个RR间隔相关联的R波，响应于P波 确定与所确定的R波相关的参数，确定与每个P波相关联的参数，确定响应于所确定的参数的P波的相对变化，响应于所确定的相对位置确定每个P波是否在匹配阈值内匹配 改变并且响应于在匹配阈值内匹配的每个P波产生P波模板。

    ATRIAL SYNCHRONIZED VENTRICULAR PACING SYSTEM USING INTRACARDIAC PACEMAKER AND EXTRACARDIAC ATRIAL SENSING
    44.
    发明申请
    ATRIAL SYNCHRONIZED VENTRICULAR PACING SYSTEM USING INTRACARDIAC PACEMAKER AND EXTRACARDIAC ATRIAL SENSING 审中-公开
    ATRIAL同步静脉瓣系统使用内皮激素和超声心动图感觉

    公开(公告)号：US20160144190A1

    公开(公告)日：2016-05-26

    申请号：US14950952

    申请日：2015-11-24

    Applicant: Medtronic, Inc.

    Inventor： Jian Cao ,  Paul J. DeGroot ,  Todd J. Sheldon

    IPC: A61N1/365 ,  A61N1/372 ,  A61N1/37

    CPC classification number: A61N1/36514 ,  A61B5/0452 ,  A61B5/0456 ,  A61B5/686 ,  A61B5/7292 ,  A61N1/36585 ,  A61N1/3702 ,  A61N1/37288 ,  A61N1/3756

    Abstract: An implantable medical device system includes an extracardiac sensing device and an intracardiac pacemaker. The sensing device senses a P-wave attendant to an atrial depolarization of the heart via housing-based electrodes carried by the sensing device when the sensing device is implanted outside the cardiovascular system and sends a trigger signal to the intracardiac pacemaker in response to sensing the P-wave. The intracardiac pacemaker detects the trigger signal and schedules a ventricular pacing pulse in response to the detected trigger signal.

    Abstract translation: 可植入医疗装置系统包括心外感测装置和心内起搏器。 当感测装置被植入在心血管系统外部时，感测装置通过基于感应装置的壳体电极感测心脏去极化的P波，并且响应于感测装置将触发信号发送到心脏起搏器 P波。 心脏起搏器检测触发​​信号并响应于检测到的触发信号调度心室起搏脉冲。

    ATRIAL ARRHYTHMIA DETECTION DURING VENTRICULAR PACING IN A CARDIAC MEDICAL DEVICE
    45.
    发明申请
    ATRIAL ARRHYTHMIA DETECTION DURING VENTRICULAR PACING IN A CARDIAC MEDICAL DEVICE 审中-公开
    心脏医疗器械中的静脉注射中的ATRIAL ARRHYTHMIA检测

    公开(公告)号：US20160113537A1

    公开(公告)日：2016-04-28

    申请号：US14520847

    申请日：2014-10-22

    Applicant: Medtronic, Inc.

    Inventor： Jian Cao ,  Elise Higgins

    IPC: A61B5/04 ,  A61B5/046 ,  A61B5/00

    CPC classification number: A61B5/04012 ,  A61B5/046 ,  A61N1/3962

    Abstract: A method and medical device for determining a cardiac event that includes determining classification factors in response to a sensed cardiac signal, and classifying the cardiac signal as one of a plurality of cardiac events in response to the determined classification factors. The classification factors include determining sensed event windows having predetermined interval pairs during a predetermined time period, determining whether a number of the determined sense event windows is less than an interval pair threshold, determining whether a number of intervals occurring during the predetermined time period and not within the sensed event windows that are less than a predetermined interval threshold is greater than a sensed interval threshold, determining whether a predetermined number of intervals occurring during the predetermined time period and not within the sensed event windows are less than a short interval count threshold, determining whether a predetermined number of intervals occurring during the predetermined time period that are either within the sensed event windows or not within the sensed event windows that are paced events is greater than a paced event threshold, and determining whether oversensing detection occurred during the predetermined event time period.

    Abstract translation: 一种用于确定心脏事件的方法和医疗装置，其包括响应于感测到的心脏信号确定分类因子，并且响应于所确定的分类因素将心脏信号分类为多个心脏事件之一。 分类因素包括在预定时间段内确定具有预定间隔对的感测事件窗口，确定所确定的感测事件窗口的数目是否小于间隔对阈值，确定在预定时间段内是否发生的间隔数，而不是 在感测到的事件中，小于预定间隔阈值的窗口大于感测间隔阈值，确定在预定时间段期间发生的并且不在感测到的事件窗口内的预定数量的间隔是否小于短间隔计数阈值， 确定在所述预定时间段内出现的预定次数的间隔是否在所感测的事件窗口内的被感测事件窗口内是否为起搏事件阈值，并且确定是否在预定期间发生过度检测 事件时间段。

    IMPLANTABLE EXTRAVASCULAR ELECTRICAL STIMULATION LEAD HAVING IMPROVED SENSING AND PACING CAPABILITY
    46.
    发明申请
    IMPLANTABLE EXTRAVASCULAR ELECTRICAL STIMULATION LEAD HAVING IMPROVED SENSING AND PACING CAPABILITY 审中-公开
    具有改进的传感和遮盖能力的可浸入式超声电刺激引线

    公开(公告)号：US20150306375A1

    公开(公告)日：2015-10-29

    申请号：US14519436

    申请日：2014-10-21

    Applicant: Medtronic, Inc.

    Inventor： Mark T. Marshall ,  Jian Cao ,  Melissa G.T. Christie ,  Paul J. DeGroot ,  Vladimir P. Nikolski ,  Amy E. Thompson-Nauman

    IPC: A61N1/05 ,  A61N1/39

    Abstract: Implantable medical electrical leads having electrodes arranged such that a defibrillation coil electrode and a pace/sense electrode(s) are concurrently positioned substantially over the ventricle when implanted are described. The leads include an elongated lead body having a distal portion and a proximal end, a connector at the proximal end of the lead body, a defibrillation electrode located along the distal portion of the lead body, wherein the defibrillation electrode includes a first segment and a second segment proximal to the first segment by a distance, a first electrical conductor extending from the proximal end of the lead body and electrically coupling to the first segment and the second segment of the defibrillation electrode, and at least one pace/sense electrode located between the first segment and the second segment of the defibrillation electrode.

    Abstract translation: 描述了植入式医疗电引线，其具有布置成使得当植入时基本上位于心室上的除颤线圈电极和步调/感测电极同时定位的电极。 引线包括具有远侧部分和近端的细长引线体，在引线本体的近端处的连接器，沿着引线主体的远端部分设置的除颤电极，其中除颤电极包括第一部分和 靠近所述第一段的第二段延伸一段距离;从所述引线主体的近端延伸并电耦合到所述除颤电极的所述第一段和所述第二段的第一电导体，以及位于所述除颤电极之间的至少一个步进/ 除颤电极的第一段和第二段。

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