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公开(公告)号：US11786739B2
公开(公告)日：2023-10-17
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
CPC classification number: A61N1/3624 , A61B5/352 , 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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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：US11547859B2
公开(公告)日：2023-01-10
申请号：US17321828
申请日：2021-05-17
Applicant: Medtronic, Inc.
Inventor： Todd J. Sheldon , Elizabeth A. Mattson , Eric R. Williams , Zhongping Yang , Shawn M. Campbell
IPC: A61N1/37 , A61N1/378 , A61N1/39 , A61N1/372 , A61B5/00 , A61N1/365 , A61B5/361 , A61B5/363 , A61B5/366 , A61N1/375 , A61B5/283
Abstract: An implantable medical device system receives a cardiac electrical signal produced by a patient's heart and comprising atrial P-waves and delivers a His bundle pacing pulse to the patient's heart via a His pacing electrode vector. The system determines a timing of a sensed atrial P-wave relative to the His bundle pacing pulse and determines a type of capture of the His bundle pacing pulse in response to the determined timing of the atrial P-wave.
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公开(公告)号：US20220168578A1
公开(公告)日：2022-06-02
申请号：US17675508
申请日：2022-02-18
Applicant: Medtronic, Inc.
Inventor： Hyun J. Yoon , Wade M. Demmer , Matthew J. Hoffman , Robert A. Betzold , Jonathan D. Edmonson , Michael L. Ellingson , Mark K. Erickson , Ben W. Herberg , Juliana E. Pronovici , James D. Reinke , Todd J. Sheldon , Paul R. Solheim
Abstract: Implantable medical systems enter an exposure mode of operation, either manually via a down linked programming instruction or by automatic detection by the implantable system of exposure to a magnetic disturbance. A controller then determines the appropriate exposure mode by considering various pieces of information including the device type including whether the device has defibrillation capability, pre-exposure mode of therapy including which chambers have been paced, and pre-exposure cardiac activity that is either intrinsic or paced rates. Additional considerations may include determining whether a sensed rate during the exposure mode is physiologic or artificially produced by the magnetic disturbance. When the sensed rate is physiologic, then the controller uses the sensed rate to trigger pacing and otherwise uses asynchronous pacing at a fixed rate.
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公开(公告)号：US11305126B2
公开(公告)日：2022-04-19
申请号：US16720030
申请日：2019-12-19
Applicant: Medtronic, Inc.
Inventor： Vincent E. Splett , Todd J. Sheldon , Yong K. Cho , Wade M. Demmer , Mark K. Erickson
Abstract: An intracardiac ventricular pacemaker 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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Patent Agency Ranking
公开(公告)号：US11260234B2
公开(公告)日：2022-03-01
申请号：US16702928
申请日：2019-12-04
Applicant: Medtronic, Inc.
Inventor： Juliana E. Pronovici , James W. Busacker , Keelia Doyle , 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：US11185701B2
公开(公告)日：2021-11-30
申请号：US15948240
申请日：2018-04-09
Applicant: Medtronic, Inc.
Inventor： Wade M. Demmer , Juliana E. Pronovici , Todd J. Sheldon
IPC: A61N1/36 , A61N1/368 , A61N1/37 , A61B5/024 , A61N1/365 , A61B5/00 , A61N1/02 , A61N1/05 , A61N1/372 , A61B5/11 , A61B5/026 , A61N1/375 , A61B5/287 , A61B5/349 , A61B5/352
Abstract: An intracardiac ventricular pacemaker having a motion sensor, a pulse generator and a control circuit coupled to the pulse generator and the motion sensor is configured to identify a ventricular systolic event, detect a ventricular passive filling event signal from the motion signal, and determine a time interval from the ventricular systolic event to the ventricular passive filling event. The pacemaker establishes a minimum pacing interval based on the time interval.
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公开(公告)号：US11103186B2
公开(公告)日：2021-08-31
申请号：US16511277
申请日：2019-07-15
Applicant: Medtronic, Inc.
Inventor： Todd J. Sheldon , Wade M. Demmer , Teresa A. Whitman
Abstract: An implantable medical device system includes a pacemaker and an implantable cardioverter defibrillator (ICD). The pacemaker is configured to confirm a hemodynamically unstable rhythm based on an activity metric determined from an activity sensor signal after detecting a ventricular tachyarrhythmia and withhold anti-tachycardia pacing (ATP) pulses in response to confirming the hemodynamically unstable rhythm. The pacemaker may deliver ATP when a hemodynamically unstable rhythm is not confirmed based on the activity metric. The ICD is configured to detect the ATP and withhold a shock therapy in response to detecting the ATP in some examples.
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公开(公告)号：US11077307B2
公开(公告)日：2021-08-03
申请号：US16449517
申请日：2019-06-24
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：US10981010B2
公开(公告)日：2021-04-20
申请号：US16409921
申请日：2019-05-13
Applicant: Medtronic, Inc.
Inventor： Hyun J. Yoon , Wade M. Demmer , Matthew J. Hoffman , Robert A. Betzold , Jonathan D. Edmonson , Michael L. Ellingson , Ben W. Herberg , Juliana E. Pronovici , James D. Reinke , Todd J. Sheldon , Paul R. Solheim
Abstract: Implantable medical systems enter an exposure mode of operation, either manually via a down linked programming instruction or by automatic detection by the implantable system of exposure to a magnetic disturbance. A controller then determines the appropriate exposure mode by considering various pieces of information including the device type including whether the device has defibrillation capability, pre-exposure mode of therapy including which chambers have been paced, and pre-exposure cardiac activity that is either intrinsic or paced rates. Additional considerations may include determining whether a sensed rate during the exposure mode is physiologic or artificially produced by the magnetic disturbance. When the sensed rate is physiologic, then the controller uses the sensed rate to trigger pacing and otherwise uses asynchronous pacing at a fixed rate.
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