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公开(公告)号：US20230148939A1
公开(公告)日：2023-05-18
申请号：US18045135
申请日：2022-10-07
Applicant: Medtronic, Inc.
Inventor： Alfonso ARANDA HERNANDEZ , Timothy A. EBELING , Saul E. GREENHUT , Troy E. JACKSON , Yuanzhen LIU , Irving J. SANCHEZ , James A. VANDER HEYDEN , Xusheng ZHANG
CPC classification number: A61B5/363 , A61N1/365 , A61N1/3621
Abstract: A medical device is configured to determine an amplitude metric from a cardiac signal segment sensed over a predetermined time interval and determine if the amplitude metric meets an amplitude threshold. The medical device is configured to perform a first analysis of the cardiac electrical signal segment for detecting a first arrhythmia when the amplitude metric does not meet the amplitude threshold and perform a second analysis of the cardiac electrical signal segment for detecting a second arrhythmia different than the first arrhythmia in response to the amplitude metric meeting the amplitude threshold.
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公开(公告)号：US20220347487A1
公开(公告)日：2022-11-03
申请号：US17812974
申请日：2022-07-15
Applicant: Medtronic, Inc.
Inventor： Xusheng ZHANG , Jian CAO , Saul E. GREENHUT , Robert W. STADLER
Abstract: An extra-cardiovascular implantable cardioverter defibrillator 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 ICD determines intervals between successively sensed R-waves and, in response to at least a predetermined number of the intervals being less than a tachyarrhythmia detection interval, analyzes at least a portion of the time segment of the second cardiac electrical signal corresponding to a most recent one of the sensed R-waves to confirm the most recent one of the R-waves. The ICD updates an unconfirmed beat count in response to the most recent one of the R-waves not being confirmed and withholds detection of a tachyarrhythmia episode in response to the unconfirmed beat count being equal to or greater than a rejection threshold.
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公开(公告)号：US20210379375A1
公开(公告)日：2021-12-09
申请号：US17407534
申请日：2021-08-20
Applicant: Medtronic, Inc.
Inventor： Xusheng ZHANG , Jian Cao
Abstract: Techniques are described for discriminating SVT and, in particular, rapidly conducting AF. The techniques include detecting an onset of a fast rate of ventricular events sensed from a cardiac electrical signal and detecting a pause in the fast rate of ventricular sensed events. A threshold number of ventricular event intervals required to detect a ventricular tachyarrhythmia is detected with each of the threshold number of ventricular event intervals being less than a tachyarrhythmia detection interval. Detection of the ventricular tachyarrhythmia and an electrical stimulation therapy for treating the ventricular tachyarrhythmia are withheld in response to at least the pause being detected.
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公开(公告)号：US20190247673A1
公开(公告)日：2019-08-15
申请号：US16390838
申请日：2019-04-22
Applicant: Medtronic, Inc.
Inventor： Saul E. GREENHUT , Robert J. NEHLS , Walter H. OLSON , Xusheng ZHANG , Wade M. DEMMER , Troy E. JACKSON , James D. REINKE
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.
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55.发明申请公开(公告)号：US20180243579A1
公开(公告)日：2018-08-30
申请号：US15964182
申请日：2018-04-27
Applicant: Medtronic, Inc.
Inventor： Xusheng ZHANG , Jian CAO , Saul E. GREENHUT , Robert W. STADLER
IPC: A61N1/39 , A61B5/042 , A61B5/0464
CPC classification number: A61N1/3987 , A61B5/0002 , A61B5/042 , A61B5/0456 , A61B5/0464 , A61N1/3925 , A61N1/3956
Abstract: An extra-cardiovascular implantable cardioverter defibrillator 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 ICD determines intervals between successively sensed R-waves and, in response to at least a predetermined number of the intervals being less than a tachyarrhythmia detection interval, analyzes at least a portion of the time segment of the second cardiac electrical signal corresponding to a most recent one of the sensed R-waves to confirm the most recent one of the R-waves. The ICD updates an unconfirmed beat count in response to the most recent one of the R-waves not being confirmed and withholds detection of a tachyarrhythmia episode in response to the unconfirmed beat count being equal to or greater than a rejection threshold.
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Patent Agency Ranking
56.发明申请公开(公告)号：US20180028087A1
公开(公告)日：2018-02-01
申请号：US15606299
申请日：2017-05-26
Applicant: Medtronic, Inc.
Inventor： Xusheng ZHANG , Jian CAO , Saul E. GREENHUT
IPC: A61B5/0464 , A61B5/021 , A61B5/04 , A61B5/00
CPC classification number: A61B5/0464 , A61B5/02108 , A61B5/0245 , A61B5/04011 , A61B5/04012 , A61B5/04017 , A61B5/0452 , A61B5/0456 , A61B5/4836 , A61B5/7203 , A61N1/3621 , A61N1/365 , A61N1/3702 , A61N1/3704 , A61N1/3925 , 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：US20180028083A1
公开(公告)日：2018-02-01
申请号：US15606216
申请日：2017-05-26
Applicant: Medtronic, Inc.
Inventor： Saul E. GREENHUT , Jian CAO , Xusheng ZHANG
IPC: A61B5/04 , A61B5/024 , A61N1/39 , A61B5/0464 , A61B5/0245
CPC classification number: A61B5/04017 , A61B5/02108 , A61B5/02405 , A61B5/0245 , A61B5/0422 , A61B5/0456 , A61B5/0464 , A61B5/686 , A61B5/7203 , A61B5/7217 , A61B5/7275 , A61N1/025 , A61N1/0504 , A61N1/36 , A61N1/36507 , A61N1/3704 , A61N1/3925 , A61N1/3956 , A61N1/3987
Abstract: A medical device, 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 acquired by a second sensing channel in response to each sensed R-wave. The medical device determines at least one noise parameter from a group of the stored time segments of the second cardiac electrical signal, detects noise based on the noise parameter, and withholds detection of a tachyarrhythmia episode in response to detecting the noise.
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58.发明申请公开(公告)号：US20170203114A1
公开(公告)日：2017-07-20
申请号：US15477475
申请日：2017-04-03
Applicant: Medtronic, Inc.
Inventor： Xusheng ZHANG
IPC: A61N1/39 , A61B5/0456 , A61N1/362 , A61B5/0464 , A61B5/0452 , A61B5/00 , A61B5/042 , A61B5/04
CPC classification number: A61N1/3987 , A61B5/04011 , A61B5/04012 , A61B5/0422 , A61B5/04525 , A61B5/0456 , A61B5/046 , A61B5/0464 , A61B5/0468 , A61B5/686 , A61B5/7207 , A61B5/7221 , A61B5/7264 , A61B5/7282 , A61N1/3621 , A61N1/3627 , A61N1/368 , A61N1/37 , A61N1/3956
Abstract: A method and medical device for detecting a cardiac event that includes sensing cardiac signals from a plurality of electrodes, sensing a plurality of beats in response to the sensed cardiac signals, identifying each beat of the plurality of beats as one of a normal beat and a not normal beat, determining at least one of whether a number of beats identified as a normal beat is greater than a normal beat threshold, whether an RR interval associated with the beats identified as being a normal beat is less than a threshold interval, and whether RR intervals associated with the beats identified as being normal beats are within an RR interval range, and identifying the cardiac event as being one of shockable and not shockable in response to the determining.
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59.发明申请公开(公告)号：US20160346558A1
公开(公告)日：2016-12-01
申请号：US15168590
申请日：2016-05-31
Applicant: Medtronic, Inc.
Inventor： Xusheng ZHANG
CPC classification number: A61N1/3987 , A61B5/04011 , A61B5/04012 , A61B5/042 , A61N1/3925 , A61N1/3962
Abstract: A method and medical device for detecting a cardiac event that includes sensing cardiac signals from a plurality of electrodes, the plurality of electrodes forming a first sensing vector sensing a first interval and a second sensing vector simultaneously sensing a second, determining, for each of the first interval and the second interval, whether each beat of the plurality of beats is one of a match beat and a non-match beat, determining whether each beat of the plurality of beats is one of a high confidence beat and a low confidence beat, determining, for each of the first interval and the second interval, the number of beats determined to be both a non-match beat and a high confidence beat is greater than a non-match threshold, and determining whether to deliver therapy for the cardiac event in response to identifying of each of the first interval and the second interval as being one of shockable and not shockable.
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60.发明申请METHOD AND APPARATUS FOR BEAT ACQUISITION DURING TEMPLATE GENERATION IN A MEDICAL DEVICE HAVING DUAL SENSING VECTORS 有权在具有双感测矢量的医疗设备中模板生成过程中获取BEAT的方法和装置公开(公告)号：US20160213311A1
公开(公告)日：2016-07-28
申请号：US15002521
申请日：2016-01-21
Applicant: Medtronic, Inc.
Inventor： Xusheng ZHANG
IPC: A61B5/00 , A61B5/0464 , A61B5/0245 , A61B5/046
CPC classification number: A61B5/4836 , A61B5/0245 , A61B5/0422 , A61B5/04525 , A61B5/046 , A61B5/0464 , A61B5/686 , A61B5/7207 , A61N1/046 , A61N1/0563 , A61N1/3621 , A61N1/3962
Abstract: Techniques are described for generating beat templates and utilizing those beat templates to detect a cardiac event, e.g., a tachyarrhythmia. In particular, example methods and devices for acquiring qualified beats for template generation are described. Additionally, techniques are described for selecting subsets of the qualified beats to actually use in generating a beat template.
Abstract translation: 描述了用于产生拍子模板并利用那些拍子模板来检测心脏事件例如快速性心律失常的技术。 具体地，描述用于获取用于模板生成的合格节拍的示例性方法和设备。 另外，描述了用于选择合格节拍的子集以实际用于生成节拍模板的技术。
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