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公开(公告)号：US09724518B2
公开(公告)日：2017-08-08
申请号：US14552758
申请日：2014-11-25
Applicant: Medtronic, Inc.
Inventor： Todd J Sheldon , Wade M Demmer , Karen J Kleckner , Douglas A Peterson , Paul R Solheim
CPC classification number: A61N1/36542 , A61N1/36128 , A61N1/36135 , A61N1/36585
Abstract: An implantable medical device includes an activity sensor, a pulse generator, and a control module. The control module is configured to determine activity metrics from the activity signal and determine an activity metric value at a predetermined percentile of the activity metrics. The control module sets a lower pacing rate set point based on the activity metric value at the predetermined percentile.
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公开(公告)号：US09694191B2
公开(公告)日：2017-07-04
申请号：US14712556
申请日：2015-05-14
Applicant: Medtronic, Inc.
Inventor： Wade M Demmer
CPC classification number: A61N1/378 , A61N1/365 , A61N1/3682 , A61N1/3684 , A61N1/3688 , A61N1/3708
Abstract: An implantable medical device includes circuitry for generating and delivering electrical stimulation therapy. A power source is included in the implantable medical device for storage of the energy for the stimulation therapy. Techniques and circuits are provided for minimizing energy losses associated with the storage of the stimulation therapy energy. The implantable medical device circuitry includes charging circuitry that is operated in at least a first mode and a second mode, such that the charging circuit is operable in one of the at least first and second modes based on whether an intrinsic cardiac event is detected. The charging circuit is operable to charge the output capacitor to a first threshold capacity that is less than a pacing capacity of the output capacitor until a given cardiac cycle elapses without a sensed intrinsic cardiac event during operation in the first mode.
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公开(公告)号：US09492669B2
公开(公告)日：2016-11-15
申请号：US14538486
申请日：2014-11-11
Applicant: Medtronic, Inc.
Inventor： Wade M Demmer , Todd J Sheldon
CPC classification number: A61N1/3702 , A61N1/3627 , A61N1/365 , A61N1/36507 , A61N1/37205 , A61N1/3756
Abstract: In some examples, a leadless pacing device (hereinafter, “LPD”) is configured for implantation in a ventricle of a heart of a patient, and is configured to switch between an atrio-ventricular synchronous pacing mode and an asynchronous ventricular pacing mode in response to detection of one or more sensing events, which may be, for example, undersensing events. In some examples, an LPD is configured to switch from a sensing without pacing mode to an atrio-ventricular synchronous pacing mode in response to determining, for a threshold number of cardiac cycles, a ventricular depolarization was not detected within a ventricular event detection window that begins at an atrial activation event.
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公开(公告)号：US09308376B2
公开(公告)日：2016-04-12
申请号：US14248646
申请日：2014-04-09
Applicant: Medtronic, Inc.
Inventor： Wade M Demmer , Douglas A Peterson
CPC classification number: A61N1/3712 , A61N1/362 , A61N1/371 , A61N1/37205 , A61N1/3943 , A61N1/3956
Abstract: A method and apparatus for identifying loss of capture in a pacing device. While pacing pulses are being delivered, the device checks for emergence of a stable asynchronous underlying intrinsic rhythm in the presence of the delivered pacing pulses. The device determines that loss of capture has occurred responsive to emergence of the underlying rhythm. In response to determining that loss of capture has occurred, pacing provided by device is modified, for example by performing a threshold test and adjusting the energy levels of delivered pacing pulses in response thereto.
Abstract translation: 一种用于识别起搏装置中的捕获损失的方法和装置。 在进行起搏脉冲的同时，器件会在出现的起搏脉冲存在的情况下检查稳定的异步潜在内在节律的出现。 该装置确定捕获的丢失是否响应于潜在节奏的出现而发生。 为了响应于确定已经发生捕获的丢失，例如通过执行阈值测试并且响应于此调整发送的起搏脉冲的能量水平来修改由设备提供的起搏。
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公开(公告)号：US20140214104A1
公开(公告)日：2014-07-31
申请号：US14178711
申请日：2014-02-12
Applicant: Medtronic, Inc.
Inventor： Saul E Greenhut , Robert J Nehls , Walter H Olson , Xusheng Zhang , Wade M Demmer , Troy E Jackson , James D Reinke
CPC classification number: A61N1/3962 , A61N1/056 , A61N1/3621 , A61N1/36585 , A61N1/37288 , A61N1/3756 , A61N1/3987
Abstract: Techniques and systems for monitoring cardiac arrhythmias and delivering electrical stimulation therapy using a subcutaneous implantable cardioverter defibrillator (SICD) and a leadless pacing device (LPD) are described. For example, the SICD may detect a tachyarrhythmia within a first electrical signal from a heart and determine, based on the tachyarrhythmia, to deliver anti-tachyarrhythmia shock therapy to the patient to treat the detected arrhythmia. The LPD may receive communication from the SICD requesting the LPD deliver anti-tachycardia pacing to the heart and determine, based on a second electrical signal from the heart sensed by the LPD, whether to deliver anti-tachycardia pacing (ATP) to the heart. In this manner, the SICD and LPD may communicate to coordinate ATP and/or cardioversion/defibrillation therapy. In another example, the LPD may be configured to deliver post-shock pacing after detecting delivery of anti-tachyarrhythmia shock therapy.
Abstract translation: 描述了使用皮下植入式心律转复除颤器（SICD）和无引线起搏装置（LPD）监测心律不齐和递送电刺激治疗的技术和系统。 例如，SICD可以检测来自心脏的第一电信号内的快速性心律失常，并且基于快速性心律失常确定将抗心律失常休克疗法递送给患者以治疗所检测到的心律失常。 LPD可以接收来自SICD的通信，请求LPD向心脏提供抗心动过速起搏，并且基于由LPD感测到的心脏的第二电信号确定是否将心动过速（ATP）提供给心脏。 以这种方式，SICD和LPD可以通信以协调ATP和/或心脏复律/除颤疗法。 在另一个示例中，LPD可以被配置为在检测到抗快速性心律失常性休克疗法的递送之后递送后冲击起搏。
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Patent Agency Ranking
公开(公告)号：US10207116B2
公开(公告)日：2019-02-19
申请号：US15366993
申请日：2016-12-01
Applicant: Medtronic, Inc.
Inventor： Todd J Sheldon , Yong K Cho , Wade M Demmer , Mark K Erickson , Vincent E Splett
Abstract: An intracardiac ventricular pacemaker is configured to operate in in a selected one of an atrial-tracking ventricular pacing mode and a non-atrial tracking ventricular pacing mode. A control circuit of the pacemaker determines at least one motion signal metric from the motion signal, compares the at least one motion signal metric to pacing mode switching criteria; and responsive to the pacing mode switching criteria being satisfied, switches from the selected one of the non-atrial tracking pacing mode and the atrial tracking pacing mode to the other one of the non-atrial tracking pacing mode and the atrial tracking pacing mode for controlling ventricular pacing pulses delivered by the pacemaker.
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公开(公告)号：US20180154154A1
公开(公告)日：2018-06-07
申请号：US15366993
申请日：2016-12-01
Applicant: Medtronic, Inc.
Inventor： Todd J Sheldon , Yong K Cho , Wade M Demmer , Mark K Erickson , Vincent E Splett
CPC classification number: A61N1/3688 , A61N1/36535 , A61N1/36542 , A61N1/36578 , A61N1/37205 , A61N1/3756
Abstract: An intracardiac ventricular pacemaker is configured to operate in in a selected one of an atrial-tracking ventricular pacing mode and a non-atrial tracking ventricular pacing mode. A control circuit of the pacemaker determines at least one motion signal metric from the motion signal, compares the at least one motion signal metric to pacing mode switching criteria; and responsive to the pacing mode switching criteria being satisfied, switches from the selected one of the non-atrial tracking pacing mode and the atrial tracking pacing mode to the other one of the non-atrial tracking pacing mode and the atrial tracking pacing mode for controlling ventricular pacing pulses delivered by the pacemaker.
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公开(公告)号：US09937352B2
公开(公告)日：2018-04-10
申请号：US14920228
申请日：2015-10-22
Applicant: Medtronic, Inc.
Inventor： Todd J Sheldon , Wade M Demmer , Eric R Williams
CPC classification number: A61N1/36585 , A61B5/1116 , A61B5/1121 , A61B5/4836 , A61N1/36535 , A61N1/36542 , A61N1/37205 , A61N1/3756
Abstract: An implantable rate responsive pacemaker includes a sensor module configured to produce an activity signal correlated to a metabolic demand of a patient and a posture signal correlated to patient posture. The pacemaker further includes a pulse generator configured to generate and deliver pacing pulses to a patient's heart via a pair of electrodes coupled to the pacemaker. A control module is coupled to the pulse generator and the sensor module and is configured to determine a sensor indicated pacing rate from the activity signal, compare the posture signal to verification criteria for confirming an exercising posture of the patient, and withhold an adjustment of a pacing rate to the sensor indicated pacing rate responsive to the verification criteria not being met.
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公开(公告)号：US09616238B2
公开(公告)日：2017-04-11
申请号：US14256133
申请日：2014-04-18
Applicant: Medtronic, Inc.
Inventor： Wade M Demmer , James D Reinke , Todd J Sheldon , Eric R Williams
CPC classification number: A61N1/3708 , A61N1/362 , G01R31/3606 , G01R31/3648 , G01R31/3679 , H01M10/48
Abstract: A method and apparatus for determining estimated remaining longevity for an implantable stimulator. The device employs pre-calculated numbers of days for various combinations conditions of device usage parameters to determine remaining device longevity based upon identified actual conditions of device usage and employs the determined longevity to change longevity indicator states in the device. While between longevity state changes, the device the identified conditions of device usage and adjusts the determined longevity if the conditions of use change significantly. The indicator states may correspond to one or more of Recommended Replacement Time (RRT), Elective Replacement Indicator (ERI) or End of Service (EOS).
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公开(公告)号：US09597513B2
公开(公告)日：2017-03-21
申请号：US14821098
申请日：2015-08-07
Applicant: Medtronic, Inc.
Inventor： Todd J Sheldon , Wade M Demmer , Margaret G Guo
CPC classification number: A61N1/368 , A61B5/04012 , A61B5/0452 , A61N1/36514 , A61N1/3702
Abstract: An intracardiac pacemaker is configured to filter a raw cardiac electrical signal received by the pacemaker to produce a filtered cardiac electrical signal, analyzes the filtered cardiac electrical signal to establish cardiac event sensing criteria that discriminate P-waves from T-waves and R-waves all present in the raw cardiac electrical signal, and sense the P-waves from the filtered cardiac electrical signal when the established cardiac event sensing criteria are met. Sensed P-waves may be used for controlling atrial-synchronized ventricular pacing delivered by the pacemaker.
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