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公开(公告)号：US20220200448A1
公开(公告)日：2022-06-23
申请号：US17644735
申请日：2021-12-16
Applicant: Medtronic, Inc.
Inventor： Michael W. Heinks , Michael B. Terry , Emily Carroll
Abstract: An example device includes a memory configured to store representations of sensed signals. The example device includes processing circuitry coupled to the memory, the processing circuitry being configured to read or write the representations of the sensed signals in the memory. The example device includes sensing circuitry coupled to the processing circuitry, the sensing circuitry being configured to sense signals indicative of a physiological condition of a patient via a plurality of electrodes and to output to the processor circuitry the representations of the sensed signals. The sensing circuitry includes a switched capacitor charge pump configured to amplify the sensed signals to generate amplified signals.
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公开(公告)号：US09643024B2
公开(公告)日：2017-05-09
申请号：US15060667
申请日：2016-03-04
Applicant: Medtronic, Inc.
Inventor： James D. Reinke , Glenn M. Roline , Shohan T. Hossain , Michael W. Heinks
CPC classification number: A61N1/3962 , A61N1/3621 , A61N1/3624 , A61N1/37 , A61N1/3756 , A61N1/3937
Abstract: An implantable pacemaker detects delivery of an anti-tachyarrhythmia shock by another device. The implantable pacemaker delivers cardiac stimulation therapy within a patient. The implantable pacemaker senses, via the electrode pair, an electrical signal. The implantable pacemaker detects the anti-tachyarrhythmia shock based on the sensed electrical signal by detecting DC voltage polarization across the electrode pair within the patient. The implantable pacemaker alters the cardiac stimulation therapy based on the detected anti-tachyarrhythmia shock.
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公开(公告)号：US11786739B2
公开(公告)日：2023-10-17
申请号：US16995965
申请日：2020-08-18
Applicant: Medtronic, Inc.
Inventor： Maureen E. Lybarger , Jian Cao , Wade M. Demmer , Michael W. Heinks , Jean E. Hudson , Michael Kemmerer , James J. St. Martin , Todd J. Sheldon
CPC classification number: A61N1/3624 , A61B5/352 , A61N1/365
Abstract: A medical device is configured to set a post-atrial time interval in response to an atrial event and generate an event time signal in response to a ventricular electrical signal crossing an R-wave sensing threshold during the post-atrial time interval. The device accumulates oversensing evidence in response to the event time signal and adjusts a ventricular sensing control parameter based on the accumulated oversensing evidence in some examples.
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公开(公告)号：US11547864B2
公开(公告)日：2023-01-10
申请号：US17068011
申请日：2020-10-12
Applicant: Medtronic, Inc.
Inventor： Jian Cao , Gerald P. Arne , Timothy A. Ebeling , Yanina Grinberg , Michael W. Heinks , Paul R. Solheim , Xusheng Zhang
Abstract: An implantable medical device system is configured to sense cardiac events in response to a cardiac electrical signal crossing a cardiac event sensing threshold. A control circuit is configured to determine a drop time interval based on a heart rate and control a sensing circuit to hold the cardiac event sensing threshold at a threshold value during the drop time interval.
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公开(公告)号：US11524169B2
公开(公告)日：2022-12-13
申请号：US15425169
申请日：2017-02-06
Applicant: Medtronic, Inc.
Inventor： 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 W. Sawchuk , Brian W. Schousek
Abstract: 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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Patent Agency Ranking
公开(公告)号：US12186571B2
公开(公告)日：2025-01-07
申请号：US18069218
申请日：2022-12-20
Applicant: Medtronic, Inc.
Inventor： Jian Cao , Gerald P. Arne , Timothy A. Ebeling , Yanina Grinberg , Michael W. Heinks , Paul R. Solheim , Xusheng Zhang
Abstract: An implantable medical device system is configured to sense cardiac events in response to a cardiac electrical signal crossing a cardiac event sensing threshold. A control circuit is configured to determine a drop time interval based on a heart rate and control a sensing circuit to hold the cardiac event sensing threshold at a threshold value during the drop time interval.
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公开(公告)号：US10799710B2
公开(公告)日：2020-10-13
申请号：US15790255
申请日：2017-10-23
Applicant: Medtronic, Inc.
Inventor： Jian Cao , Gerald P. Arne , Timothy A. Ebeling , Yanina Grinberg , Michael W. Heinks , Paul R. Solheim , Xusheng Zhang
Abstract: An implantable medical device system is configured to sense cardiac events in response to a cardiac electrical signal crossing a cardiac event sensing threshold. A control circuit is configured to determine a drop time interval based on a heart rate and control a sensing circuit to hold the cardiac event sensing threshold at a threshold value during the drop time interval.
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公开(公告)号：US10583306B2
公开(公告)日：2020-03-10
申请号：US15416827
申请日：2017-01-26
Applicant: Medtronic, Inc.
Inventor： Xusheng Zhang , Saul E. Greenhut , Michael W. Heinks , Paul R. Solheim
Abstract: An implantable cardioverter defibrillator (ICD) starts a timer set to a time interval in response to a cardiac electrical signal crossing a noise threshold amplitude and resets the timer to the time interval in response to each crossing of the noise threshold amplitude by the cardiac electrical signal that occurs prior to the time interval expiring. A control circuit of the ICD determines a parameter of the behavior of the timer and identifies a sensed cardiac event as an electromagnetic interference (EMI) event based on the parameter. The ICD may detect EMI in response to the EMI event and withhold a tachyarrhythmia detection or therapy in response to EMI detection.
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公开(公告)号：US10252071B2
公开(公告)日：2019-04-09
申请号：US15142171
申请日：2016-04-29
Applicant: Medtronic, Inc.
Inventor： Jian Cao , Timothy A. Ebeling , Saul E. Greenhut , Michael W. Heinks , Irving J. Sanchez , Paul R. Solheim , Xusheng Zhang , Gerald P. Arne
IPC: A61N1/39 , A61N1/05 , A61B5/0456 , A61N1/362 , A61N1/365
Abstract: An implantable medical device system capable of sensing cardiac electrical signals includes a sensing circuit, a therapy delivery circuit and a control circuit. The sensing circuit is configured to receive a cardiac electrical signal and sense a cardiac event in response to the signal crossing a cardiac event sensing threshold. The therapy delivery circuit is configured to deliver an electrical stimulation therapy to a patient's heart via the electrodes coupled to the implantable medical device. The control circuit is configured to control the sensing circuit to set a starting value of the cardiac event sensing threshold and hold the starting value constant for a sense delay interval. The control circuit is further configured to detect an arrhythmia based on cardiac events sensed by the sensing circuit and control the therapy delivery circuit to deliver the electrical stimulation therapy in response to detecting the arrhythmia.
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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
Applicant: Medtronic, Inc.
Inventor： 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 classification number: A61N1/3962 , A61N1/05 , A61N1/36507 , A61N1/3925 , A61N1/39622 , A61N1/3981 , A61N1/3987
Abstract: 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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