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11.发明申请公开(公告)号：US20200094065A1
公开(公告)日：2020-03-26
申请号：US16696129
申请日：2019-11-26
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 , A61B5/00 , A61B5/042
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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12.发明申请公开(公告)号：US20190117985A1
公开(公告)日：2019-04-25
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
CPC classification number: A61N1/3956 , A61B5/0456 , A61N1/05 , A61N1/3621 , A61N1/3622 , A61N1/365 , A61N1/37252 , A61N1/3931 , A61N1/3943 , A61N1/3987
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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13.发明申请公开(公告)号：US20180028086A1
公开(公告)日：2018-02-01
申请号：US15588810
申请日：2017-05-08
Applicant: Medtronic, Inc.
Inventor： Jian CAO , Mark L. BROWN , Elise J. HIGGINS , Paul J. DEGROOT
IPC: A61B5/0464 , A61B5/04 , A61B5/044 , A61B5/0432 , A61N1/365 , A61N1/362 , A61N1/39 , A61B5/042 , A61B5/00
CPC classification number: A61B5/0464 , A61B5/0006 , A61B5/002 , A61B5/02405 , A61B5/0245 , A61B5/04012 , A61B5/042 , A61B5/0422 , A61B5/0432 , A61B5/044 , A61B5/0456 , A61B5/0472 , A61B5/4836 , A61B5/686 , A61B5/6869 , A61B5/7264 , A61B5/7275 , A61B5/746 , A61B2505/07 , A61N1/3624 , A61N1/36507 , A61N1/3925 , A61N1/3956 , A61N1/3987 , G16H40/63 , G16H40/67 , G16H50/30
Abstract: A system for detecting an atrial tachyarrhythmia episode includes a medical device having sensing circuitry configured to receive a cardiac electrical signal from electrodes coupled to the medical device and a processor configured to detect an atrial tachyarrhythmia episode in response to a time duration of the cardiac electrical signal classified as an atrial tachyarrhythmia being greater than or equal to a first detection threshold. The processor is configured to determine if detection threshold adjustment criteria are met based on at least the detected first atrial tachyarrhythmia episode and adjust the first detection threshold to a second detection threshold different than the first detection threshold in response to the detection threshold adjustment criteria being met.
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14.发明申请公开(公告)号：US20170312534A1
公开(公告)日：2017-11-02
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
CPC classification number: A61N1/3987 , A61B5/0422 , A61B5/0456 , A61B5/046 , A61B5/686 , A61N1/05 , A61N1/3621 , A61N1/365 , A61N1/39 , A61N1/3925 , A61N1/3956
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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15.发明申请RECOVERY OF CARDIAC EVENT SENSING AND RHYTHM DETECTION FOLLOWING ELECTRICAL STIMULATION PULSE DELIVERY 审中-公开在电刺激脉搏递送下的心脏事件感测和RHYTHM检测的恢复公开(公告)号：US20160106991A1
公开(公告)日：2016-04-21
申请号：US14519220
申请日：2014-10-21
Applicant: Medtronic, Inc.
Inventor： Robert W. STADLER , Jian CAO
IPC: A61N1/39
CPC classification number: A61N1/3987 , A61B5/0452 , A61B5/046 , A61B5/0464 , A61N1/3702 , A61N1/3925 , A61N1/3956 , A61N1/3962
Abstract: A medical device is configured to deliver an electrical stimulation pulse to a heart of a patient, determine a pre-stimulation cardiac event amplitude prior to delivering the electrical stimulation pulse and adjust a cardiac event sensing threshold according to a first post-stimulation decay sequence in response to the electrical stimulation pulse delivery. The first post-stimulation decay sequence is controlled by a sensing module of the medical device according to a first set of sensing control parameters including at least one sensing control parameter based on the pre-stimulation cardiac event amplitude.
Abstract translation: 医疗设备被配置为将电刺激脉冲传送到患者的心脏，在传递电刺激脉冲之前确定预刺激心脏事件振幅，并根据第一后刺激衰减序列调整心脏事件感测阈值 响应电刺激脉冲输送。 第一后刺激衰减序列由医疗装置的感测模块根据第一组感测控制参数控制，包括基于预刺激心脏事件振幅的至少一个感测控制参数。
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Patent Agency Ranking
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：US20230136836A1
公开(公告)日：2023-05-04
申请号：US18148040
申请日：2022-12-29
Applicant: Medtronic, Inc.
Inventor： Elise J. HIGGINS , Mark L. BROWN , Jian CAO
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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公开(公告)号：US20220331600A1
公开(公告)日：2022-10-20
申请号：US17856946
申请日：2022-07-01
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
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：US20220266034A1
公开(公告)日：2022-08-25
申请号：US17743436
申请日：2022-05-12
Applicant: Medtronic, Inc.
Inventor： Jian CAO , Alan CHENG
Abstract: An implantable medical device performs a method that includes detecting a cardiac event interval that is greater than a P-wave oversensing threshold interval. In response to detecting the cardiac event interval greater than the P-wave oversensing threshold interval, the device determines the amplitude of the sensed cardiac signal and withholds restarting a pacing interval in response to the amplitude satisfying P-wave oversensing criteria. A pacing pulse may be generated in response to the pacing interval expiring without sensing an intrinsic cardiac electrical event that is not detected as a P-wave oversensing event.
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公开(公告)号：US20210052895A1
公开(公告)日：2021-02-25
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
IPC: A61N1/362 , A61B5/0456 , 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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