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公开(公告)号：US08744572B1
公开(公告)日：2014-06-03
申请号：US13756085
申请日：2013-01-31
Applicant: Medtronic, Inc.
Inventor： Saul E. Greenhut , Robert J. Nehls , Walter H. Olson , Xusheng Zhang , Wade M. Demmer , Troy E. Jackson
IPC: A61N1/00
CPC classification number: A61N1/3962 , A61N1/056 , A61N1/3621 , A61N1/36585 , A61N1/37288 , A61N1/3756 , A61N1/3987
Abstract: 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.
Abstract translation: 描述了使用皮下植入式心律转复除颤器（SICD）和无引线起搏装置（LPD）监测心律不齐和递送电刺激治疗的技术和系统。 例如，SICD可以检测来自心脏的第一电信号内的快速性心律失常，并且基于快速性心律失常确定将抗心律失常休克疗法递送给患者以治疗所检测到的心律失常。 LPD可以接收来自SICD的通信，请求LPD向心脏提供抗心动过速起搏，并且基于由LPD感测到的心脏的第二电信号确定是否将心动过速（ATP）提供给心脏。 以这种方式，SICD和LPD可以通信以协调ATP和/或心脏复律/除颤疗法。 在另一个示例中，LPD可以被配置为在检测到抗快速性心律失常性休克疗法的递送之后递送后冲击起搏。
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公开(公告)号：US20250082940A1
公开(公告)日：2025-03-13
申请号：US18956991
申请日：2024-11-22
Applicant: Medtronic, Inc.
Inventor： Saul E. Greenhut , Robert J. Nehls , Walter H. Olson , Xusheng Zhang , Wade M. Demmer , Troy E. Jackson , James D. Reinke
Abstract: 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：US12151110B2
公开(公告)日：2024-11-26
申请号：US18424575
申请日：2024-01-26
Applicant: Medtronic, Inc.
Inventor： Saul E. Greenhut , Robert J. Nehls , Walter H. Olson , Xusheng Zhang , Wade M. Demmer , Troy E. Jackson , James D. Reinke
Abstract: 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：US12064637B2
公开(公告)日：2024-08-20
申请号：US17486285
申请日：2021-09-27
Applicant: Medtronic, Inc.
Inventor： Nathan A. Grenz , Karen J. Kleckner , Xusheng Zhang
IPC: A61N1/37 , A61B5/00 , A61B5/024 , A61B7/00 , A61B7/04 , A61N1/365 , A61N1/372 , A61N1/36 , A61N1/362
CPC classification number: A61N1/3704 , A61B5/0031 , A61B5/024 , A61B5/4029 , A61B5/7217 , A61B7/005 , A61B7/006 , A61B7/04 , A61N1/36578 , A61N1/3702 , A61N1/37241 , A61N1/37258 , A61N1/36135 , A61N1/3627 , A61N1/37282
Abstract: A method and device for detecting phrenic nerve stimulation (PNS) in, or using, a cardiac medical device. A test signal sensitive to contraction of a diaphragm of a patient may be sensed and signal artifacts of the test signal within each of a first window of the test signal prior to a predetermined cardiac signal and a second window of the test signal subsequent to the predetermined cardiac signal may be determined. The PNS beat criteria may be evaluated, for example, using the test signal, which may be a heart sounds signal.
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25.发明授权公开(公告)号：US12011608B2
公开(公告)日：2024-06-18
申请号：US17472614
申请日：2021-09-11
Applicant: Medtronic, Inc.
Inventor： Xusheng Zhang , Paul J. Degroot
CPC classification number: A61N1/3956 , A61B5/00 , A61B5/352 , A61B5/353 , A61B5/363 , A61B5/4836 , A61B5/6869 , A61B5/7278 , A61B5/7282 , A61N1/36507 , A61N1/3987 , A61N1/3704
Abstract: A cardiac medical system, such as an implantable cardioverter defibrillator (ICD) system, receives a cardiac electrical signal by and senses cardiac events when the signal crosses an R-wave sensing threshold. The system determines at least one sensed event parameter from the cardiac electrical signal for consecutive cardiac events sensed by the sensing circuit and compares the sensed event parameters to P-wave oversensing criteria. The system detects P-wave oversensing in response to the sensed event parameters meeting the P-wave oversensing criteria; and adjusts at least one of an R-wave sensing control parameter or a therapy delivery control parameter in response to detecting the P-wave oversensing.
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Patent Agency Ranking
公开(公告)号：US12004863B2
公开(公告)日：2024-06-11
申请号：US17732461
申请日：2022-04-28
Applicant: Medtronic, Inc.
Inventor： Xusheng Zhang , Jian Cao , Saul E. Greenhut
IPC: A61B5/363 , A61B5/00 , A61B5/021 , A61B5/316 , A61B5/341 , A61B5/349 , A61B5/352 , A61N1/362 , A61N1/365 , A61N1/37 , A61N1/39 , A61B5/0245 , H03H21/00
CPC classification number: A61B5/363 , A61B5/02108 , A61B5/316 , A61B5/341 , A61B5/349 , A61B5/352 , A61B5/7203 , A61N1/3621 , A61N1/365 , A61N1/3702 , A61N1/3925 , A61B5/0245 , A61B5/4836 , A61N1/3704 , A61N1/3956 , A61N1/3962 , A61N1/3987 , H03H21/0012
Abstract: A medical device system, such as an extra-cardiovascular implantable cardioverter defibrillator ICD, senses R-waves from a first cardiac electrical signal by a first sensing channel and stores a time segment of a second cardiac electrical signal in response to each sensed R-wave. The medical device system determines a morphology parameter correlated to signal noise from time segments of the second cardiac electrical signal, detects a noisy signal segment based on the signal morphology parameter; and withholds detection of a tachyarrhythmia episode in response to detecting a threshold number of noisy signal segments.
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公开(公告)号：US11801385B2
公开(公告)日：2023-10-31
申请号：US17087960
申请日：2020-11-03
Applicant: Medtronic, Inc.
Inventor： Xusheng Zhang , Kevin L. Dehmer , Saul Greenhut , Troy E. Jackson , Yuanzhen Liu
CPC classification number: A61N1/3621 , A61B5/363
Abstract: A medical device is configured to determine time intervals between consecutive cardiac events sensed from a cardiac electrical signal, increase a value of a tachyarrhythmia interval count in response to each of the determine time intervals detected as a tachyarrhythmia interval. The device is further configured to detect normal sinus rhythm events and the decrease the value of the tachyarrhythmia interval count in response to a threshold number of detected normal sinus rhythm events.
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公开(公告)号：US11751793B2
公开(公告)日：2023-09-12
申请号：US16372868
申请日：2019-04-02
Applicant: Medtronic, Inc.
Inventor： Xusheng Zhang
CPC classification number: A61B5/341 , A61B5/25 , A61B5/349 , A61B5/352 , A61B5/7221 , A61N1/3621 , A61N1/39622
Abstract: A method and medical device for determining sensing vectors that includes sensing cardiac signals from a plurality of electrodes, the plurality of electrodes forming a plurality of sensing vectors, determining a sensing vector metric in response to the sensed cardiac signals, determining a morphology metric associated with a morphology of the sensed cardiac signals, determining vector selection metrics in response to the determined sensing vector metric and the determined morphology setting, and selecting a sensing vector of the plurality of sensing vectors in response to the determined vector selection metrics.
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公开(公告)号：US11737712B2
公开(公告)日：2023-08-29
申请号：US16874920
申请日：2020-05-15
Applicant: Medtronic, Inc.
Inventor： Saul E. Greenhut , Yuanzhen Liu , Xusheng Zhang
CPC classification number: A61B5/7203 , A61B5/316 , A61B5/363 , A61B5/4836 , A61B5/7221 , A61N1/365
Abstract: A medical device is configured to sense event signals from a cardiac electrical signal and determine maximum amplitudes of cardiac electrical signal segments associated with sensed event signals. The medical device is configured to determine at least one tachyarrhythmia metric based on at least a greatest one of the determined maximum amplitudes. The medical device may determine when the at least one tachyarrhythmia metric does not meet true tachyarrhythmia evidence and, in response, determine when the maximum amplitudes meet suspected noise criteria. The medical device may withhold a tachyarrhythmia detection and tachyarrhythmia therapy when suspected noise criteria are met.
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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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