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公开(公告)号：US11369795B2
公开(公告)日：2022-06-28
申请号：US15964355
申请日：2018-04-27
申请人： Medtronic, Inc.
摘要： A medical device is configured to deliver a series of electrical stimulation pulses including opposing polarity pulses. The medical device delivers a charge balancing pulse by modifying every nth pulse of the electrical stimulation pulses to reduce a net charge delivered over the series of electrical stimulation pulses. In some examples, the medical device may be an implantable medical device that is coupled to an extra-cardiovascular lead for delivering the cardiac pacing pulses.
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公开(公告)号：US10751541B2
公开(公告)日：2020-08-25
申请号：US15676066
申请日：2017-08-14
申请人： Medtronic, Inc.
发明人： Robert T. Sawchuk
摘要： An implantable medical device system delivers a pacing pulse to a patient's heart and starts a first pacing interval corresponding to a pacing rate in response to the delivered pacing pulse. The system charges a holding capacitor to a pacing voltage amplitude during the first pacing interval. The system detects an increased intrinsic heart rate that is at least a threshold rate faster than the current pacing rate from a cardiac electrical signal received by a sensing circuit of the implantable medical device. The system starts a second pacing interval in response to an intrinsic cardiac event sensed from the cardiac electrical signal and withholds charging of the holding capacitor for at least a portion of the second pacing interval in response to detecting the increased intrinsic heart rate.
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13.发明申请公开(公告)号：US20170312531A1
公开(公告)日：2017-11-02
申请号：US15143114
申请日：2016-04-29
申请人： Medtronic, Inc.
发明人： Robert T. Sawchuk
CPC分类号： A61N1/3962 , A61N1/025 , A61N1/0563 , A61N1/3621 , A61N1/37241 , A61N1/37264 , A61N1/37288 , A61N1/3756 , A61N1/39622 , A61N1/3987
摘要： Techniques are disclosed for determining, by an extracardiovascular implantable cardioverter defibrillator (ICD) implanted in a patient, whether one or more test therapy signals generated by another medical device implanted in the patient is detected. In response to detecting the one or more test therapy signals, the extracardiovascular ICD provides an indication that the extracardiovascular ICD has detected the one or more test therapy signals. In some examples, the indication is an audible tone provided to a clinician. In some examples, the other medical device is an intracardiac cardiac pacing device, and the one or more test therapy signals comprises a plurality of anti-tachycardia pacing (ATP) pulses.
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公开(公告)号：US12005263B2
公开(公告)日：2024-06-11
申请号：US18050462
申请日：2022-10-27
申请人： Medtronic, Inc.
发明人： Yanina Grinberg , Paul D. Baker , Lonny V. Cabelka , Craig W. Dorma , Timothy A. Ebeling , Michael W. Heinks , James Vander Heyden , Joseph Ippolito , Joel R. Lauer , Robert T. Sawchuk , Brian W. Schousek
CPC分类号： A61N1/3962 , A61N1/05 , A61N1/36507 , A61N1/3925 , A61N1/39622 , A61N1/3981 , A61N1/3987
摘要： An extra-cardiovascular implantable cardioverter defibrillator (ICD) having a high voltage therapy module is configured to control a high voltage charging circuit to charge a capacitor to a pacing voltage amplitude to deliver charge balanced pacing pulses. The capacitor is chargeable to a shock voltage amplitude that is greater than the pacing voltage amplitude. The ICD is configured to enable switching circuitry of the high voltage therapy module to discharge the capacitor to deliver a first pulse having a first polarity and a leading voltage amplitude corresponding to the pacing voltage amplitude for pacing the patient's heart via a pacing electrode vector selected from extra-cardiovascular electrodes. The high voltage therapy module delivers a second pulse after the first pulse. The second pulse has a second polarity opposite the first polarity and balances the electrical charge delivered during the first pulse.
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公开(公告)号：US11524166B2
公开(公告)日：2022-12-13
申请号：US16786087
申请日：2020-02-10
申请人： Medtronic, Inc.
发明人： David A. Anderson , Mark T. Marshall , Vladimir P. Nikolski , Robert T. Sawchuk , Amy E. Thompson-Nauman , John D. Wahlstrand , Gregory A. Younker
摘要： An extra-cardiovascular implantable cardioverter defibrillator (ICD) having a low voltage therapy module and a high voltage therapy module is configured to select, by a control module of the ICD, a pacing output configuration from at least a low-voltage pacing output configuration of the low voltage therapy module and a high-voltage pacing output configuration of the high voltage therapy module. The high voltage therapy module includes a high voltage capacitor having a first capacitance and the low voltage therapy module includes a plurality of low voltage capacitors each having up to a second capacitance that is less than the first capacitance. The ICD control module controls a respective one of the low voltage therapy module or the high voltage therapy module to deliver extra-cardiovascular pacing pulses in the selected pacing output configuration via extra-cardiovascular electrodes coupled to the ICD.
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公开(公告)号：US11406838B2
公开(公告)日：2022-08-09
申请号：US16658473
申请日：2019-10-21
申请人： Medtronic, Inc.
发明人： David A. Anderson , Mark T. Marshall , Vladimir P. Nikolski , Robert T. Sawchuk , Amy E. Thompson-Nauman , John D. Wahlstrand , Gregory A. Younker
摘要： An implantable medical device is configured to control a therapy module to couple a capacitor array comprising a plurality of capacitors to a plurality of extra-cardiovascular electrodes and control the therapy module to deliver a composite pacing pulse to a patient's heart via the plurality of extra-cardiovascular electrodes by sequentially discharging at least a portion of the plurality capacitors to produce a series of at least two individual pulses that define the composite pacing pulse.
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公开(公告)号：US11318321B2
公开(公告)日：2022-05-03
申请号：US16408713
申请日：2019-05-10
申请人： Medtronic, Inc.
发明人： Robert T. Sawchuk
摘要： Techniques are disclosed for determining, by an extracardiovascular implantable cardioverter defibrillator (ICD) implanted in a patient, whether one or more test therapy signals generated by another medical device implanted in the patient is detected. In response to detecting the one or more test therapy signals, the extracardiovascular ICD provides an indication that the extracardiovascular ICD has detected the one or more test therapy signals. In some examples, the indication is an audible tone provided to a clinician. In some examples, the other medical device is an intracardiac cardiac pacing device, and the one or more test therapy signals comprises a plurality of anti-tachycardia pacing (ATP) pulses.
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公开(公告)号：US10940325B2
公开(公告)日：2021-03-09
申请号：US16195015
申请日：2018-11-19
申请人： Medtronic, Inc.
发明人： Yanina Grinberg , Robert T. Sawchuk , Amy E. Thompson-Nauman , Douglas A. Peterson , Paul R. Solheim , Joel R. Lauer
摘要： An implantable cardioverter defibrillator (ICD) receives a cardiac electrical signal by a sensing circuit while operating in a sensing without pacing mode and detects asystole based on the cardiac electrical signal. The ICD determines, in response to detecting the asystole, if asystole backup pacing is enabled, and automatically switches to a temporary pacing mode in response to the asystole backup pacing being enabled. Other examples of detecting asystole and providing a response to detecting asystole by the ICD are described herein.
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公开(公告)号：US10449362B2
公开(公告)日：2019-10-22
申请号：US15368197
申请日：2016-12-02
申请人： Medtronic, Inc.
发明人： David A. Anderson , Mark T. Marshall , Vladimir P. Nikolski , Robert T. Sawchuk , Amy E. Thompson-Nauman , John D. Wahlstrand , Gregory A. Younker
摘要： An implantable medical device is configured to control a therapy module to couple a capacitor array comprising a plurality of capacitors to a plurality of extra-cardiovascular electrodes and control the therapy module to deliver a composite pacing pulse to a patient's heart via the plurality of extra-cardiovascular electrodes by sequentially discharging at least a portion of the plurality capacitors to produce a series of at least two individual pulses that define the composite pacing pulse.
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20.发明申请公开(公告)号：US20190262624A1
公开(公告)日：2019-08-29
申请号：US16408713
申请日：2019-05-10
申请人： Medtronic, Inc.
发明人： Robert T. Sawchuk
摘要： Techniques are disclosed for determining, by an extracardiovascular implantable cardioverter defibrillator (ICD) implanted in a patient, whether one or more test therapy signals generated by another medical device implanted in the patient is detected. In response to detecting the one or more test therapy signals, the extracardiovascular ICD provides an indication that the extracardiovascular ICD has detected the one or more test therapy signals. In some examples, the indication is an audible tone provided to a clinician. In some examples, the other medical device is an intracardiac cardiac pacing device, and the one or more test therapy signals comprises a plurality of anti-tachycardia pacing (ATP) pulses.
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