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公开(公告)号：US20240188885A1
公开(公告)日：2024-06-13
申请号：US18582394
申请日：2024-02-20
申请人： Medtronic, Inc.
CPC分类号： A61B5/4836 , A61B5/363 , A61B5/686 , A61N1/3622 , A61N1/36592 , A61N1/3706 , A61N1/3756 , A61B5/318 , A61N1/37205
摘要： The control module of a first pacemaker included in an implantable medical device system including the first pacemaker and a second pacemaker is configured to set a pacing escape interval in response to a far field pacing pulse sensed by the first pacemaker. The far field pacing pulse is a pacing pulse delivered by the second pacemaker. The pacing escape interval is allowed to continue without restarting the in response to a far field intrinsic event sensed by the first pacemaker during the pacing escape interval. The first pacemaker delivers a cardiac pacing pulse to the heart upon expiration of the pacing escape interval.
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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
申请人： Medtronic, Inc.
发明人： 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
摘要： 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：US20210316149A1
公开(公告)日：2021-10-14
申请号：US17355905
申请日：2021-06-23
申请人： Medtronic, Inc.
摘要： A device, such as an IMD, having a tissue conductance communication (TCC) transmitter controls a drive signal circuit and a polarity switching circuit by a controller of the TCC transmitter to generate an alternating current (AC) ramp on signal having a peak amplitude that is stepped up from a starting peak-to-peak amplitude to an ending peak-to-peak amplitude according to a step increment and step up interval. The TCC transmitter is further controlled to transmit the AC ramp on signal from the drive signal circuit and the polarity switching circuit via a coupling capacitor coupled to a transmitting electrode vector coupleable to the IMD. After the AC ramp on signal, the TCC transmitter transmits at least one TCC signal to a receiving device.
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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
申请人： MEDTRONIC, INC.
发明人： 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
摘要： 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：US11033743B2
公开(公告)日：2021-06-15
申请号：US16390838
申请日：2019-04-22
申请人： Medtronic, Inc.
发明人： Saul E. Greenhut , Robert J. Nehls , Walter H. Olson , Xusheng Zhang , Wade M. Demmer , Troy E. Jackson , James D. Reinke
摘要： 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.
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公开(公告)号：US11020038B2
公开(公告)日：2021-06-01
申请号：US16278960
申请日：2019-02-19
申请人： Medtronic, Inc.
发明人： James D. Reinke , Xusheng Zhang , Vinod Sharma , Vladimir P. Nikolski , Michael B. Terry , Scott A. Hareland , Daniel L. Hansen , Donna M. Salmi
摘要： In situations in which an implantable medical device (e.g., a subcutaneous ICD) is co-implanted with a leadless pacing device (LPD), it may be important that the subcutaneous ICD knows when the LPD is delivering pacing, such as anti-tachycardia pacing (ATP). Techniques are described herein for detecting, with the ICD and based on the sensed electrical signal, pacing pulses and adjusting operation to account for the detected pulses, e.g., blanking the sensed electrical signal or modifying a tachyarrhythmia detection algorithm. In one example, the ICD includes a first pace pulse detector configured to obtain a sensed electrical signal and analyze the sensed electrical signal to detect a first type of pulses having a first set of characteristics and a second pace pulse detector configured to obtain the sensed electrical signal and analyze the sensed electrical signal to detect a second type of pulses having a second set of characteristics.
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公开(公告)号：US10750970B2
公开(公告)日：2020-08-25
申请号：US16221921
申请日：2018-12-17
申请人： Medtronic, Inc.
摘要： 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.
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公开(公告)号：US10265534B2
公开(公告)日：2019-04-23
申请号：US15334410
申请日：2016-10-26
申请人： Medtronic, Inc.
发明人： Saul E. Greenhut , Robert J. Nehls , Walter H. Olson , Xusheng Zhang , Wade M. Demmer , Troy E. Jackson , James D. Reinke
摘要： 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.
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公开(公告)号：US10232182B2
公开(公告)日：2019-03-19
申请号：US15141758
申请日：2016-04-28
申请人： Medtronic, Inc.
摘要： In some examples, an implantable medical device determines that another medical device delivered an anti-tachyarrhythmia shock, and delivers post-shock pacing in response to the determination. The implantable medical device may be configured to both detect the delivery of the shock in a sensed electrical signal and, if delivery of the shock is not detected, determine that the shock was delivered based on detection of asystole of the heart. The asystole may be detected based on the sensed electrical signal. In some examples, an implantable medical device is configured to revert from a post-shock pacing mode to a baseline pacing mode by iteratively testing a plurality of decreasing values of pacing pulse magnitude until loss of capture is detected. The implantable medical device may update a baseline value of the pacing pulse magnitude for the baseline mode based on the detection of loss of capture.
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公开(公告)号：US09808632B2
公开(公告)日：2017-11-07
申请号：US14603733
申请日：2015-01-23
申请人： Medtronic, Inc.
CPC分类号： A61N1/37288 , A61B5/0452 , A61B5/6846 , A61N1/0534 , A61N1/3621 , A61N1/3622 , A61N1/3627 , A61N1/365 , A61N1/37205 , A61N1/37217 , A61N1/37229 , A61N1/37252 , A61N1/3756 , A61N1/3956 , A61N1/3962
摘要： An implantable medical device comprises a communication module that comprises at least one of a receiver module and a transmitter module. The receiver module is configured to both receive from an antenna and demodulate an RF telemetry signal, and receive from a plurality of electrodes and demodulate a tissue conduction communication (TCC) signal. The transmitter module is configured to modulate and transmit both an RF telemetry signal via the antenna and a TCC signal via the plurality of electrodes. The RF telemetry signal and the TCC signal are both within a predetermined band for RF telemetry communication. In some examples, the IMD comprises a switching module configured to selectively couple one of the plurality of electrodes and the antenna to the receiver module or transmitter module.
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