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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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公开(公告)号：US20210236825A1
公开(公告)日：2021-08-05
申请号：US17159596
申请日：2021-01-27
Applicant: Medtronic, Inc.
Inventor： Todd J. SHELDON , Keelia M. Escalante , Greggory R. HERR , Juliana E. PRONOVICI , Vincent E. SPLETT
Abstract: A medical device includes a motion sensor configured to produce a motion signal and a control circuit configured to set sensing control parameters and sense atrial events from the motion signal during ventricular cycles according to the sensing control parameters. In some examples, the control circuit is configured to determine a feature of the motion signal for at least some ventricular cycles, determine a metric of the motion signal based on the determined features, and adjust at least one of the sensing control parameters based on the metric.
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公开(公告)号：US20250128074A1
公开(公告)日：2025-04-24
申请号：US19006151
申请日：2024-12-30
Applicant: Medtronic, Inc.
Inventor： Juliana E. PRONOVICI , James W. BUSACKER , Keelia M. ESCALANTE , Vincent P. GANION , Greggory R. HERR , Todd J. SHELDON , Vincent E. SPLETT
Abstract: A pacemaker is configured to operate in an atrial synchronous ventricular pacing mode and, after expiration of a conduction check time interval, switch to an asynchronous ventricular pacing mode that includes setting a ventricular pacing interval to a base pacing rate interval. The pacemaker is further configured to determine when atrioventricular block detection criteria are satisfied during the asynchronous ventricular pacing mode and, responsive to the atrioventricular block detection criteria being satisfied, switch back to the atrial synchronous ventricular pacing mode.
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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：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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Patent Agency Ranking
公开(公告)号：US20230226360A1
公开(公告)日：2023-07-20
申请号：US18188442
申请日：2023-03-22
Applicant: Medtronic, Inc.
Inventor： Todd J. SHELDON , Wade M. DEMMER , Vincent P. GANION , Juliana E. PRONOVICI , Vincent E. SPLETT , Menglong XING
IPC: A61N1/365
CPC classification number: A61N1/36578 , A61N1/36585 , A61B5/352
Abstract: A ventricular pacemaker is configured to determine a ventricular rate interval by determining at least one ventricular event interval between two consecutive ventricular events and determine a rate smoothing ventricular pacing interval based on the ventricular rate interval. The pacemaker is further configured to detect an atrial event from a sensor signal and deliver a ventricular pacing pulse in response to detecting the atrial event from the sensor signal. The pacemaker may start the rate smoothing ventricular pacing interval to schedule a next pacing pulse to be delivered upon expiration of the rate smoothing ventricular pacing interval.
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公开(公告)号：US20220176127A1
公开(公告)日：2022-06-09
申请号：US17681678
申请日：2022-02-25
Applicant: Medtronic, Inc.
Inventor： Juliana E. PRONOVICI , James W. BUSACKER , Keelia M. ESCALANTE , Vincent P. GANION , Greggory R. HERR , Todd J. SHELDON , Vincent E. SPLETT
Abstract: A pacemaker is configured to operate in an atrial synchronous ventricular pacing mode and, after expiration of a conduction check time interval, switch to an asynchronous ventricular pacing mode that includes setting a ventricular pacing interval to a base pacing rate interval. The pacemaker is further configured to determine when atrioventricular block detection criteria are satisfied during the asynchronous ventricular pacing mode and, responsive to the atrioventricular block detection criteria being satisfied, switch back to the atrial synchronous ventricular pacing mode.
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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：US20230263416A1
公开(公告)日：2023-08-24
申请号：US18159064
申请日：2023-01-24
Applicant: Medtronic, Inc.
Inventor： Vincent E. SPLETT , Todd J. SHELDON
CPC classification number: A61B5/024 , A61B5/7235
Abstract: A medical device having a motion sensor is configured to sense a motion signal, generate ventricular pacing pulses in a non-atrial tracking ventricular pacing mode and detect atrial event signals from the motion signal during the non-atrial tracking ventricular pacing mode. The medical device may be configured to determine atrial event intervals from the detected atrial event signals, determine a frequency distribution of the determined atrial event intervals and determine an atrial rate based on the frequency distribution of the detected atrial event intervals.
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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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