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公开(公告)号:US20220362558A1
公开(公告)日:2022-11-17
申请号:US17735628
申请日:2022-05-03
Applicant: Medtronic, Inc.
Inventor: Xiaohong ZHOU , Wade M. DEMMER , Robert W. STADLER
Abstract: A medical device is configured to sense at least one cardiac electrical signal and generate pacing pulses according to a first pacing therapy by generating pacing pulses for delivery to a first combination of ventricular pacing sites including at least one ventricular conduction system pacing site. The medical device may be configured to determine a ventricular conduction condition based on a QRS signal feature of the sensed cardiac signal during the first pacing therapy. The medical device may change to a second pacing therapy different than the first pacing therapy based on the determined ventricular conduction condition.
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公开(公告)号:US20220080210A1
公开(公告)日:2022-03-17
申请号:US17533005
申请日:2021-11-22
Applicant: Medtronic, Inc.
Inventor: Jian CAO , Wade M. DEMMER , Elizabeth A. MATTSON , Todd J. SHELDON , Xiaohong ZHOU
Abstract: A medical device is configured to receive a cardiac signal and determine a morphology matching score from the cardiac signal and a capture detection morphology template that corresponds to a first type of cardiac pacing capture that includes capture of at least a first portion of the His-Purkinje system. The device is configured to detect a second type of cardiac pacing capture in response to the morphology matching score being less than the first match threshold. The second type of cardiac pacing capture is different than the first type of cardiac pacing capture and may include capture of the ventricular myocardium and/or a second portion of the His-Purkinje system different than the first portion.
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公开(公告)号:US20200069245A1
公开(公告)日:2020-03-05
申请号:US16673390
申请日:2019-11-04
Applicant: Medtronic, Inc.
Inventor: Xiaohong ZHOU
IPC: A61B5/00 , G16H50/20 , G16H50/30 , A61N1/39 , A61B5/08 , A61N1/05 , A61B5/0205 , A61B5/0464 , A61B5/04
Abstract: In some examples, processing circuitry of a medical device system determines, for each of a plurality of patient parameters, a difference metric for a current period based on a value of a patient parameter determined for the current period and a value of the patient parameter determined for an immediately preceding period, and determines a score for the current period based on a sum of the difference metrics for at least some of the plurality of patient parameters. The processing circuitry determines a threshold for the current period based on scores determined for N periods that precede the current period, compares the score for the current period to the threshold, and determines whether to generate an alert indicating that an acute cardiac event of the patient, e.g., ventricular tachyarrhythmia, is predicted, and/or deliver a therapy configured to prevent the acute cardiac event, based on the comparison.
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公开(公告)号:US20240324938A1
公开(公告)日:2024-10-03
申请号:US18739315
申请日:2024-06-10
Applicant: Medtronic, Inc.
Inventor: Xiaohong ZHOU , Wade M. DEMMER , Robert W. STADLER
IPC: A61B5/366 , A61B5/06 , A61B5/283 , A61B5/339 , A61B17/00 , A61B90/00 , A61N1/05 , A61N1/362 , A61N1/365 , A61N1/37 , A61N1/372
CPC classification number: A61B5/366 , A61B5/068 , A61B5/283 , A61B5/339 , A61B90/37 , A61N1/056 , A61N1/362 , A61N1/36521 , A61B2017/00243 , A61N1/371 , A61N1/372
Abstract: A medical device system is configured to guide implantation of a pacing electrode for left bundle branch pacing. The system includes a medical device having a processor configured to receive at least one cardiac electrical signal, determine a feature of the cardiac electrical signal, compare the feature to left bundle branch signal criteria, and determine a left bundle branch signal in response to the feature meeting the left bundle branch signal criteria. The system includes a display unit configured to generate a user feedback signal indicating advancement of a pacing electrode into a left portion of a ventricular septum in response to the processor determining the left bundle branch signal.
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公开(公告)号:US20240252828A1
公开(公告)日:2024-08-01
申请号:US18621035
申请日:2024-03-28
Applicant: Medtronic, Inc.
Inventor: Xiaohong ZHOU , Wade M. DEMMER , Robert W. STADLER
IPC: A61N1/37
CPC classification number: A61N1/371 , A61N1/3702
Abstract: A medical device processor is configured to receive at least one cardiac electrical signal that is sensed during bilateral bundle branch pacing delivered from a bipolar electrode pair comprising an anode positioned along a first bundle branch and a cathode positioned along a second bundle branch opposite the first bundle branch, determine at least one feature from the first cardiac electrical signal, determine that the at least one feature meets first bundle branch capture criteria; and determine anodal bundle branch capture in response to the first bundle branch capture criteria being met.
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公开(公告)号:US20210015390A1
公开(公告)日:2021-01-21
申请号:US16990804
申请日:2020-08-11
Applicant: Medtronic, Inc.
Inventor: Xiaohong ZHOU , Wade M. DEMMER , Robert W. STADLER
Abstract: A medical device system is configured to guide implantation of a pacing electrode for left bundle branch pacing. The system includes a medical device having a processor configured to receive at least one cardiac electrical signal, determine a feature of the cardiac electrical signal, compare the feature to left bundle branch signal criteria, and determine a left bundle branch signal in response to the feature meeting the left bundle branch signal criteria. The system includes a display unit configured to generate a user feedback signal indicating advancement of a pacing electrode into a left portion of a ventricular septum in response to the processor determining the left bundle branch signal.
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公开(公告)号:US20230181911A1
公开(公告)日:2023-06-15
申请号:US18167795
申请日:2023-02-10
Applicant: Medtronic, Inc.
Inventor: Jian CAO , Wade M. DEMMER , Maureen E. LYBARGER , Elizabeth A. MATTSON , Todd J. SHELDON , Zhongping YANG , Xiaohong ZHOU
CPC classification number: A61N1/36507 , A61N1/3706 , A61N1/3714 , A61N1/3704
Abstract: A medical device is configured to sense a cardiac electrical signal and determine from the cardiac electrical signal at least one of a maximum peak amplitude of a positive slope of the cardiac electrical signal and a maximum peak time interval from a pacing pulse to the maximum peak amplitude. The device is configured to determine a capture type of the pacing pulse based on at least one or both of the maximum peak amplitude and the maximum peak time interval.
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公开(公告)号:US20220023640A1
公开(公告)日:2022-01-27
申请号:US17370303
申请日:2021-07-08
Applicant: Medtronic, Inc.
Inventor: Xiaohong ZHOU , Wade M. DEMMER , Robert W. STADLER
IPC: A61N1/37
Abstract: A medical device processor is configured to receive at least one cardiac electrical signal that is sensed during bilateral bundle branch pacing delivered from a bipolar electrode pair comprising an anode positioned along a first bundle branch and a cathode positioned along a second bundle branch opposite the first bundle branch, determine at least one feature from the first cardiac electrical signal, determine that the at least one feature meets first bundle branch capture criteria; and determine anodal bundle branch capture in response to the first bundle branch capture criteria being met.
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公开(公告)号:US20210015389A1
公开(公告)日:2021-01-21
申请号:US16931567
申请日:2020-07-17
Applicant: Medtronic, Inc.
Inventor: Xiaohong ZHOU , Wade M. DEMMER , Robert W. STADLER
Abstract: A medical device system is configured to guide implantation of a pacing electrode for left bundle branch pacing. The system includes a medical device having a processor configured to receive at least one cardiac electrical signal, determine a feature of the cardiac electrical signal, compare the feature to left bundle branch signal criteria, and determine a left bundle branch signal in response to the feature meeting the left bundle branch signal criteria. The system includes a display unit configured to generate a user feedback signal indicating advancement of a pacing electrode into a left portion of a ventricular septum in response to the processor determining the left bundle branch signal.
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