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21.发明申请公开(公告)号：US20180339164A1
公开(公告)日：2018-11-29
申请号：US16054089
申请日：2018-08-03
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：US20180028828A1
公开(公告)日：2018-02-01
申请号：US15655082
申请日：2017-07-20
Applicant: Medtronic, Inc.
Inventor： Jian CAO , Saul E. GREENHUT , Xusheng ZHANG
IPC: A61N1/39 , A61B5/0452 , A61B5/042 , A61B5/0464 , A61B5/04 , A61B5/0456
CPC classification number: A61N1/3956 , A61B5/04011 , A61B5/04017 , A61B5/042 , A61B5/0452 , A61B5/04525 , A61B5/0456 , A61B5/0464 , A61B5/0468 , A61B5/4836 , A61B5/686 , A61N1/3925 , 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 ICD determines morphology match scores from the stored time segments of the second cardiac electrical signal and, based on the morphology match scores, withholds detection of a tachyarrhythmia episode. In some examples, the ICD detects T-wave oversensing based on the morphology match scores and withholds detection of a tachyarrhythmia episode in response to detecting the T-wave oversensing.
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公开(公告)号：US20170312532A1
公开(公告)日：2017-11-02
申请号：US15140802
申请日：2016-04-28
Applicant: Medtronic, Inc.
Inventor： Xusheng ZHANG , Jian CAO , Saul E. GREENHUT , Robert W. STADLER
IPC: A61N1/39 , A61B5/0464 , A61B5/042
CPC classification number: A61N1/3987 , A61B5/042 , 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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24.发明申请IMPLANTABLE EXTRAVASCULAR ELECTRICAL STIMULATION LEAD HAVING IMPROVED SENSING AND PACING CAPABILITY 有权具有改进的传感和遮盖能力的可浸入式超声电刺激引线公开(公告)号：US20150306410A1
公开(公告)日：2015-10-29
申请号：US14695255
申请日：2015-04-24
Applicant: Medtronic, Inc.
Inventor： Mark T. MARSHALL , Jian CAO , Melissa G.T. CHRISTIE , Paul J. DEGROOT , Vladimir P. NIKOLSKI , Amy E. THOMPSON-NAUMAN
CPC classification number: A61N1/05 , A61N1/0504 , A61N1/3918
Abstract: Implantable medical electrical leads having electrodes arranged such that a defibrillation coil electrode and a pace/sense electrode(s) are concurrently positioned substantially over the ventricle when implanted as described. The leads include an elongated lead body having a distal portion and a proximal end, a connector at the proximal end of the lead body, a defibrillation electrode located along the distal portion of the lead body, wherein the defibrillation electrode includes a first electrode segment and a second electrode segment proximal to the first electrode segment by a distance. The leads may include at least one pace/sense electrode, which in some instances, is located between the first defibrillation electrode segment and the second defibrillation electrode segment.
Abstract translation: 具有电极布置的植入式医疗电引线，使得当如所述植入时，除颤线圈电极和步态/感测电极基本上位于心室上方。 引线包括具有远侧部分和近端的细长引线主体，引线主体的近端处的连接器，沿着引线主体的远端部分设置的除颤电极，其中除颤电极包括第一电极段和 靠近第一电极段的第二电极段一段距离。 引线可以包括至少一个速度/感测电极，其在一些情况下位于第一除颤电极段和第二除颤电极段之间。
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公开(公告)号：US20230405332A1
公开(公告)日：2023-12-21
申请号：US18459404
申请日：2023-08-31
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 , A61N1/365 , A61B5/352
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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Patent Agency Ranking
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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27.发明申请公开(公告)号：US20220314005A1
公开(公告)日：2022-10-06
申请号：US17837451
申请日：2022-06-10
Applicant: Medtronic, Inc.
Inventor： Jian CAO , Paul J. DEGROOT , Todd J. SHELDON
Abstract: An implantable medical device system includes an extracardiac sensing device and an intracardiac pacemaker. The sensing device senses a P-wave attendant to an atrial depolarization of the heart via housing-based electrodes carried by the sensing device when the sensing device is implanted outside the cardiovascular system and sends a trigger signal to the intracardiac pacemaker in response to sensing the P-wave. The intracardiac pacemaker detects the trigger signal and schedules a ventricular pacing pulse in response to the detected trigger signal.
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28.发明申请公开(公告)号：US20190091467A1
公开(公告)日：2019-03-28
申请号：US16200846
申请日：2018-11-27
Applicant: Medtronic, Inc.
Inventor： Mark T. MARSHALL , Jian CAO , Melissa G.T. CHRISTIE , Paul J. DEGROOT , Vladimir P. NIKOLSKI , Amy E. THOMPSON-NAUMAN
Abstract: Implantable medical electrical leads having electrodes arranged such that a defibrillation coil electrode and a pace/sense electrode(s) are concurrently positioned substantially over the ventricle when implanted as described. The leads include an elongated lead body having a distal portion and a proximal end, a connector at the proximal end of the lead body, a defibrillation electrode located along the distal portion of the lead body, wherein the defibrillation electrode includes a first electrode segment and a second electrode segment proximal to the first electrode segment by a distance. The leads may include at least one pace/sense electrode, which in some instances, is located between the first defibrillation electrode segment and the second defibrillation electrode segment.
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公开(公告)号：US20180338699A1
公开(公告)日：2018-11-29
申请号：US16051779
申请日：2018-08-01
Applicant: Medtronic, Inc.
Inventor： Elise J. HIGGINS , Mark L. BROWN , Jian CAO
IPC: A61B5/0464 , A61B5/024 , A61B5/04 , A61B5/042 , A61N1/39 , A61B5/0456 , A61B5/046 , A61B5/00 , A61B5/0472
CPC classification number: A61B5/0464 , A61B5/002 , A61B5/02405 , A61B5/04012 , A61B5/0422 , A61B5/0456 , A61B5/046 , A61B5/0472 , A61B5/4836 , A61B5/7264 , A61B2560/028 , A61N1/3925 , A61N1/395 , A61N1/3956 , A61N1/39622 , A61N1/3987
Abstract: A medical device is configured to detect an atrial tachyarrhythmia episode. The device senses a cardiac signal, identifies R-waves in the cardiac signal attendant ventricular depolarizations and determines classification factors from the R-waves identified over a predetermined time period. The device classifies the predetermined time period as one of unclassified, atrial tachyarrhythmia and non-atrial tachyarrhythmia by comparing the determined classification factors to classification criteria. A classification criterion is adjusted from a first classification criterion to a second classification criterion after at least one time period being classified as atrial tachyarrhythmia. An atrial tachyarrhythmia episode is detected by the device in response to at least one subsequent time period being classified as atrial tachyarrhythmia based on the adjusted classification criterion.
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30.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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