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公开(公告)号：US11253707B2
公开(公告)日：2022-02-22
申请号：US16600751
申请日：2019-10-14
Applicant: Medtronic, Inc.
Inventor： Hyun J. Yoon , Wade M. Demmer , Matthew J. Hoffman , Robert A. Betzold , Jonathan D. Edmonson , Michael L. Ellingson , Mark K. Erickson , Ben W. Herberg , Juliana E. Pronovici , James D. Reinke , Todd J. Sheldon , Paul R. Solheim
Abstract: Implantable medical systems enter an exposure mode of operation, either manually via a down linked programming instruction or by automatic detection by the implantable system of exposure to a magnetic disturbance. A controller then determines the appropriate exposure mode by considering various pieces of information including the device type including whether the device has defibrillation capability, pre-exposure mode of therapy including which chambers have been paced, and pre-exposure cardiac activity that is either intrinsic or paced rates. Additional considerations may include determining whether a sensed rate during the exposure mode is physiologic or artificially produced by the magnetic disturbance. When the sensed rate is physiologic, then the controller uses the sensed rate to trigger pacing and otherwise uses asynchronous pacing at a fixed rate.
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公开(公告)号：US11207526B2
公开(公告)日：2021-12-28
申请号：US16681278
申请日：2019-11-12
Applicant: Medtronic, Inc.
Inventor： Todd J. Sheldon , Vincent P. Ganion , Greggory R. Herr , Michael L. Hudziak , Juliana E. Pronovici , Paul R. Solheim
Abstract: A medical device is configured to produce a cardiac motion signal by sampling a signal produced by an axis of a motion sensor, starting a blanking period, suspending the sampling of the signal during at least a portion of the blanking period, and restarting the sampling of the signal at the sampling frequency before the blanking period has expired. The medical device may detect a cardiac event from the cardiac motion signal and generate a pacing pulse in response to detecting the cardiac event in some examples.
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公开(公告)号：US20210236828A1
公开(公告)日：2021-08-05
申请号：US17234746
申请日：2021-04-19
Applicant: MEDTRONIC, INC.
Inventor： Hyun J. Yoon , Wade M. Demmer , Matthew J. Hoffman , Robert A. Betzold , Jonathan D. Edmonson , Michael L. Ellingson , Ben W. Herberg , Juliana E. Pronovici , James D. Reinke , Todd J. Sheldon , Paul R. Solheim
Abstract: Implantable medical systems enter an exposure mode of operation, either manually via a down linked programming instruction or by automatic detection by the implantable system of exposure to a magnetic disturbance. A controller then determines the appropriate exposure mode by considering various pieces of information including the device type including whether the device has defibrillation capability, pre-exposure mode of therapy including which chambers have been paced, and pre-exposure cardiac activity that is either intrinsic or paced rates. Additional considerations may include determining whether a sensed rate during the exposure mode is physiologic or artificially produced by the magnetic disturbance. When the sensed rate is physiologic, then the controller uses the sensed rate to trigger pacing and otherwise uses asynchronous pacing at a fixed rate.
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公开(公告)号：US10350426B2
公开(公告)日：2019-07-16
申请号：US16056676
申请日：2018-08-07
Applicant: Medtronic, Inc.
Inventor： Todd J. Sheldon , Wade M. Demmer , Teresa A. Whitman
IPC: A61B5/00 , A61N1/39 , A61N1/362 , A61N1/365 , A61B5/0464
Abstract: An implantable medical device system includes a pacemaker and an implantable cardioverter defibrillator (ICD). The pacemaker is configured to confirm a hemodynamically unstable rhythm based on an activity metric determined from an activity sensor signal after detecting a ventricular tachyarrhythmia and withhold anti-tachycardia pacing (ATP) pulses in response to confirming the hemodynamically unstable rhythm. The pacemaker may deliver ATP when a hemodynamically unstable rhythm is not confirmed based on the activity metric. The ICD is configured to detect the ATP and withhold a shock therapy in response to detecting the ATP in some examples.
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公开(公告)号：US20180085589A1
公开(公告)日：2018-03-29
申请号：US15280538
申请日：2016-09-29
Applicant: Medtronic, Inc.
Inventor： Vincent E. Splett , Todd J. Sheldon , Yong K. Cho , Wade M. Demmer , Mark K. Erickson
CPC classification number: A61N1/36578 , A61N1/056 , A61N1/36542 , A61N1/36585 , A61N1/3682 , A61N1/3684 , A61N1/37205 , A61N1/37512 , A61N1/3756
Abstract: An intracardiac ventricular pacemaker is configured to detect a ventricular diastolic event from a motion signal received by a pacemaker control circuit from a motion sensor. The control circuit starts an atrial refractory period having an expiration time set based on a time of the detection of the ventricular diastolic event. The control circuit detects an atrial systolic event from the motion signal after expiration of the atrial refractory period and controls a pulse generator of the pacemaker to deliver a pacing pulse to a ventricle of a patient's heart at a first atrioventricular pacing time interval after the atrial systolic event detection.
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Patent Agency Ranking
76.发明申请公开(公告)号：US20170312502A1
公开(公告)日：2017-11-02
申请号：US15142814
申请日：2016-04-29
Applicant: MEDTRONIC, INC.
Inventor： Hyun J. Yoon , Michael L. Ellingson , Wade M. Demmer , Jonathan D. Edmonson , Matthew J. Hoffman , Ben W. Herberg , James D. Reinke , Todd J. Sheldon , Paul R. Solheim , Alison M. Seacord
CPC classification number: A61N1/08 , A61N1/3718 , A61N1/3931
Abstract: Implantable medical devices automatically switch from a normal mode of operation to an exposure mode of operation and back to the normal mode of operation. The implantable medical devices may utilize hysteresis timers in order to determine if entry and/or exit criteria for the exposure mode are met. The implantable medical devices may utilize additional considerations for entry to the exposure mode such as a confirmation counter or a moving buffer of sensor values. The implantable medical devices may utilize additional considerations for exiting the exposure mode of operation and returning to the normal mode, such as total time in the exposure mode, patient position, and high voltage source charge time in the case of devices with defibrillation capabilities.
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公开(公告)号：US20170056670A1
公开(公告)日：2017-03-02
申请号：US15350708
申请日：2016-11-14
Applicant: Medtronic, Inc.
Inventor： Todd J. Sheldon , Wade M. Demmer
CPC classification number: A61N1/36592 , A61N1/3688 , 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.
Abstract translation: 在一些示例中，无引线起搏装置（以下称为“LPD”）被配置用于植入患者心脏的心室中，并且被配置为响应于心房间同步起搏模式和异步心室起搏模式之间的切换 以检测一个或多个感测事件，其可以是例如不足感的事件。 在一些示例中，响应于确定对于阈值数量的心动周期，在心室事件检测窗口内未检测到心室去极化，LPD被配置为从不具有起搏模式的感测切换到心室同步起搏模式 从心房激活事件开始。
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公开(公告)号：US20160339255A1
公开(公告)日：2016-11-24
申请号：US15225468
申请日：2016-08-01
Applicant: Medtronic, Inc.
Inventor： Aleksandre T. Sambelashvili , Thomas J. Mullen , Todd J. Sheldon
CPC classification number: A61N1/3714 , A61N1/36514 , A61N1/36592 , A61N1/368 , A61N1/3684 , A61N1/371
Abstract: Cardiac resynchronization therapy (CRT) delivered to a heart of a patient may be adjusted based on detection of a surrogate indication of the intrinsic atrioventricular conduction of the heart. In some examples, the surrogate indication is determined to be a sense event of the first depolarizing ventricle of the heart within a predetermined period of time following the delivery of a fusion pacing stimulus to the later depolarizing ventricle. In some examples, the CRT is switched from a fusion pacing configuration to a biventricular pacing configuration if the surrogate indication is not detected, and the CRT is maintained in a fusion pacing configuration if the surrogate indication is detected.
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公开(公告)号：US20160310733A1
公开(公告)日：2016-10-27
申请号：US14694279
申请日：2015-04-23
Applicant: Medtronic, Inc.
Inventor： Todd J. Sheldon , James K. Carney , Saul E. Greenhut
CPC classification number: A61N1/365 , A61N1/3627 , A61N1/368 , A61N1/3684 , A61N1/3712 , A61N1/3756
Abstract: An implantable medical device system including an atrial pacemaker and a ventricular pacemaker is configured to deliver dual chamber pacing in the presence of atrioventricular block. In response to detecting the AV block, the atrial pacemaker may establish a limited number of selectable pacing rates. The atrial pacemaker selects a rate from the limited number of selectable pacing rates and adjusts the atrial pacing rate to the selected rate. The ventricular pacemaker is configured to establish a ventricular pacing rate that is equivalent to the selected rate in response to detecting the AV block. Other examples are described herein.
Abstract translation: 包括心房起搏器和心室起搏器的植入式医疗装置系统构造成在房室传导阻滞的情况下输送双室起搏。 响应于检测到AV阻滞，心房起搏器可建立有限数量的可选起搏速率。 心房起搏器从有限数量的可选起搏速率中选择一个速率，并将心房起搏速率调整到所选择的速率。 心室起搏器被配置为建立与响应于检测AV块相应的所选择的速率的心室起搏速率。 本文描述了其它实例。
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公开(公告)号：US20160129262A1
公开(公告)日：2016-05-12
申请号：US14538518
申请日：2014-11-11
Applicant: Medtronic, Inc.
Inventor： Todd J. Sheldon , Wade M. Demmer
CPC classification number: A61N1/36592 , A61N1/3688 , 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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