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公开(公告)号：US20230271017A1
公开(公告)日：2023-08-31
申请号：US18313274
申请日：2023-05-05
Applicant: Medtronic, Inc.
Inventor： Todd J. Sheldon , Yong K. CHO , Wade M. DEMMER , Mark K. ERICKSON , Vincent E. SPLETT
CPC classification number: A61N1/36542 , A61N1/3756 , A61N1/3688 , A61N1/36535 , A61N1/36507 , A61N1/37217
Abstract: An intracardiac ventricular pacemaker is configured to operate in in a selected one of an atrial-tracking ventricular pacing mode and a non-atrial tracking ventricular pacing mode. A control circuit of the pacemaker determines at least one motion signal metric from the motion signal, compares the at least one motion signal metric to pacing mode switching criteria, and, responsive to the pacing mode switching criteria being satisfied, switches from the selected one of the non-atrial tracking pacing mode and the atrial tracking pacing mode to the other one of the non-atrial tracking pacing mode and the atrial tracking pacing mode for controlling ventricular pacing pulses delivered by the pacemaker.
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公开(公告)号：US20220288397A1
公开(公告)日：2022-09-15
申请号：US17824718
申请日：2022-05-25
Applicant: Medtronic, Inc.
Inventor： Vincent E. SPLETT , Todd J. SHELDON , Yong K. CHO , Wade M. DEMMER , Mark K. ERICKSON
Abstract: An intracardiac ventricular pacemaker having a motion sensor is configured to produce a motion signal including an atrial systolic event and a ventricular diastolic event indicating a passive ventricular filling phase, set a detection threshold to a first amplitude during an expected time interval of the ventricular diastolic event and to a second amplitude lower than the first amplitude after an expected time interval of the ventricular diastolic event. The pacemaker is configured to detect the atrial systolic event in response to the motion signal crossing the detection threshold and set an atrioventricular pacing interval in response to detecting the atrial systolic event.
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3.发明申请公开(公告)号：US20190184181A1
公开(公告)日：2019-06-20
申请号：US16220093
申请日：2018-12-14
Applicant: Medtronic, Inc.
Inventor： Yanzhu ZHAO , Yong K. CHO , Michael D. EGGEN , Wei GAN , Kathryn HILPISCH , Srikara V. PEELUKHANA , Darrell J. SWENSON , Joshua J. BLAUER
CPC classification number: A61N1/37217 , A61N1/36031 , A61N1/36135 , A61N1/3621 , A61N1/37252 , A61N1/37288 , A61N1/39622
Abstract: A device and method are described for transmitting tissue conductance communication (TCC) signals. A device may be is configured to establish a transmission window by transmitting a TCC test signal at multiple time points over a transmission test period to a receiving device and detect at least one response to the transmitted TCC test signals performed by the receiving device. The IMD is configured to establish the transmission window based on the at least one detected response so that the transmission window is correlated to a time of relative increased transimpedance between a transmitting electrode vector and receiving electrode vector during the transmission test period.
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4.发明申请ATRIAL CONTRACTION DETECTION BY A VENTRICULAR LEADLESS PACING DEVICE FOR ATRIO-SYNCHRONOUS VENTRICULAR PACING 有权用于ATRIO-SYNCHRONOUS VENTRICULAR PACING的静脉引导装置的ATRIAL CONTRACTION检测公开(公告)号：US20160023000A1
公开(公告)日：2016-01-28
申请号：US14579105
申请日：2014-12-22
Applicant: Medtronic, Inc.
Inventor： Yong K. CHO , Aleksandre T. SAMBELASHVILI , Todd J. SHELDON
CPC classification number: A61N1/36578 , A61N1/3621 , A61N1/36585 , A61N1/3682 , A61N1/3684 , A61N1/37288 , A61N1/3756
Abstract: A leadless pacing device (LPD) includes a motion sensor configured to generate a motion signal as a function of heart movement. The LPD is configured to analyze the motion signal within an atrial contraction detection window that begins an atrial contraction detection delay period after activation of the ventricle, and detect a contraction of an atrium of the heart based on the analysis of the motion signal within the atrial contraction detection window. If the LPD does not detect a ventricular depolarization subsequent to the atrial contraction, e.g., with an atrio-ventricular (AV) interval beginning when the atrial contraction was detected, the LPD delivers a ventricular pacing pulse.
Abstract translation: 无引脚起搏装置（LPD）包括被配置为产生作为心脏运动的函数的运动信号的运动传感器。 LPD被配置为分析在激活心室之后开始心房收缩检测延迟期的心房收缩检测窗口内的运动信号，并且基于心房内的运动信号的分析来检测心脏的心房的收缩 收缩检测窗口。 如果LPD在心房收缩之后没有检测到心室去极化，例如当检测到心房收缩时开始心房（AV）间隔，则LPD递送心室起搏脉冲。
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公开(公告)号：US20190083801A1
公开(公告)日：2019-03-21
申请号：US15705690
申请日：2017-09-15
Applicant: Medtronic, Inc.
Inventor： Zhongping YANG , Thomas A. ANDERSON , Yong K. CHO , Becky L. DOLAN , Rick D. MCVENES
Abstract: An implantable medical device has a housing having a proximal end, a distal end and an outer sidewall extending from the proximal end to the distal end. A fixation sheath includes a housing sheath portion extending along the outer sidewall of the housing, and a fixation member portion extending from the housing sheath portion. The housing sheath portion is advanceable from a first position along the outer sidewall of the housing in which the fixation member portion is retracted toward the proximal end of the housing to a second position along the outer sidewall of the housing in which the fixation member portion is deployed to extend away from the housing distal end for anchoring the implantable medical device at an implant site.
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Patent Agency Ranking
公开(公告)号：US20180361160A1
公开(公告)日：2018-12-20
申请号：US16022111
申请日：2018-06-28
Applicant: Medtronic, Inc.
Inventor： Todd J. SHELDON , Yong K. CHO , Wade M. DEMMER , Mark K. ERICKSON , Vincent E. SPLETT
Abstract: An intracardiac ventricular pacemaker is configured to operate in in a selected one of an atrial-tracking ventricular pacing mode and a non-atrial tracking ventricular pacing mode. A control circuit of the pacemaker determines at least one motion signal metric from the motion signal, compares the at least one motion signal metric to pacing mode switching criteria, and, responsive to the pacing mode switching criteria being satisfied, switches from the selected one of the non-atrial tracking pacing mode and the atrial tracking pacing mode to the other one of the non-atrial tracking pacing mode and the atrial tracking pacing mode for controlling ventricular pacing pulses delivered by the pacemaker.
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公开(公告)号：US20250114616A1
公开(公告)日：2025-04-10
申请号：US18988295
申请日：2024-12-19
Applicant: Medtronic, Inc.
Inventor： Vincent E. SPLETT , Todd J. SHELDON , Yong K. CHO , Wade M. DEMMER , Mark K. ERICKSON
Abstract: An intracardiac ventricular pacemaker having a motion sensor is configured to produce a motion signal including an atrial systolic event and a ventricular diastolic event indicating a passive ventricular filling phase, set a detection threshold to a first amplitude during an expected time interval of the ventricular diastolic event and to a second amplitude lower than the first amplitude after an expected time interval of the ventricular diastolic event. The pacemaker is configured to detect the atrial systolic event in response to the motion signal crossing the detection threshold and set an atrioventricular pacing interval in response to detecting the atrial systolic event.
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公开(公告)号：US20250065132A1
公开(公告)日：2025-02-27
申请号：US18943784
申请日：2024-11-11
Applicant: Medtronic, Inc.
Inventor： Wade M. DEMMER , Yong K. CHO , Mark K. ERICKSON , Todd J. SHELDON
Abstract: An intracardiac pacemaker system is configured to produce physiological atrial event signals by a sensing circuit of a ventricular intracardiac pacemaker and select a first atrial event input as the physiological atrial event signals. The ventricular intracardiac pacemaker detects atrial events from the selected first atrial event input, determines if input switching criteria are met, and switches from the first atrial event input to a second atrial event input in response to the input switching criteria being met. The second atrial event input includes broadcast atrial event signals produced by a second implantable medical device and received by the ventricular intracardiac pacemaker.
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公开(公告)号：US20220323769A1
公开(公告)日：2022-10-13
申请号：US17722756
申请日：2022-04-18
Applicant: Medtronic, Inc.
Inventor： Vincent E. SPLETT , Todd J. SHELDON , Yong K. CHO , Wade M. DEMMER , Mark K. ERICKSON
Abstract: An intracardiac ventricular pacemaker is configured to detect a ventricular diastolic event from a motion signal received by a pacemaker control circuit from a motion sensor. The control circuit starts an atrial refractory period having an expiration time set based on a time of the detection of the ventricular diastolic event. The control circuit detects an atrial systolic event from the motion signal after expiration of the atrial refractory period and controls a pulse generator of the pacemaker to deliver a pacing pulse to a ventricle of a patient's heart at a first atrioventricular pacing time interval after the atrial systolic event detection.
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公开(公告)号：US20210077815A1
公开(公告)日：2021-03-18
申请号：US17106500
申请日：2020-11-30
Applicant: Medtronic, Inc.
Inventor： Todd J. SHELDON , Yong K. CHO , Wade M. DEMMER , Mark K. ERICKSON , Vincent E. SPLETT
Abstract: An intracardiac ventricular pacemaker is configured to operate in in a selected one of an atrial-tracking ventricular pacing mode and a non-atrial tracking ventricular pacing mode. A control circuit of the pacemaker determines at least one motion signal metric from the motion signal, compares the at least one motion signal metric to pacing mode switching criteria, and, responsive to the pacing mode switching criteria being satisfied, switches from the selected one of the non-atrial tracking pacing mode and the atrial tracking pacing mode to the other one of the non-atrial tracking pacing mode and the atrial tracking pacing mode for controlling ventricular pacing pulses delivered by the pacemaker.
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