公开(公告)号：US11938326B2

公开(公告)日：2024-03-26

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

IPC: A61N1/37 ,  A61N1/368 ,  A61N1/39

CPC classification number: A61N1/3718 ,  A61N1/3684 ,  A61N1/3688 ,  A61N1/3925 ,  A61N1/39622

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.

公开(公告)号：US20230381523A1

公开(公告)日：2023-11-30

申请号：US17824764

申请日：2022-05-25

Applicant: Medtronic, Inc.

Inventor： Yanina Grinberg ,  Troy E. Jackson ,  Eric R. Williams ,  John C. Stroebel ,  Karen J. Kleckner ,  Todd J. Sheldon ,  Mackenzie E. Hall ,  Saul E. Greenhut

IPC: A61N1/368 ,  A61N1/375 ,  A61N1/05 ,  A61N1/372

CPC classification number: A61N1/368 ,  A61N1/3756 ,  A61N1/37512 ,  A61N1/0573 ,  A61N1/37205 ,  A61N1/37518

Abstract: Ventricle-from-atrium (VfA) devices, systems, and methods may be configured to monitor a single channel of cardiac electrical activity and determine atrial events and ventricular events based on the single channel of cardiac electrical activity. Various processing, windowing, and thresholding may be used to identify atrial events and ventricular events within the single channel of cardiac electrical activity.

公开(公告)号：US11752346B2

公开(公告)日：2023-09-12

申请号：US16993684

申请日：2020-08-14

Applicant: Medtronic, Inc.

Inventor： Todd J. Sheldon ,  Wade M. Demmer ,  Greggory R. Herr

IPC: A61N1/365 ,  A61N1/375 ,  A61N1/372 ,  A61N1/368 ,  A61B5/00 ,  A61B5/11 ,  A61B5/352 ,  A61N1/05

CPC classification number: A61N1/36578 ,  A61B5/1102 ,  A61B5/352 ,  A61B5/4836 ,  A61B5/686 ,  A61B5/7282 ,  A61N1/3682 ,  A61N1/3756 ,  A61N1/37205 ,  A61N1/0573 ,  A61N1/37217

Abstract: A pacemaker having a motion sensor delivers atrial-synchronized ventricular pacing by detecting events from a signal produced by the motion sensor and delivering ventricular pacing pulses at a rate that tracks the rate of the detected events. The pacemaker is configured to confirm atrial tracking of the ventricular pacing pulses by determining if detected events from the motion sensor signal are atrial events. The pacemaker is configured to adjust a control parameter used for detecting events from the motion sensor signal if atrial tracking is not confirmed.

公开(公告)号：US11724113B2

公开(公告)日：2023-08-15

申请号：US16703047

申请日：2019-12-04

Applicant: Medtronic, Inc.

Inventor： Vincent E. Splett ,  Keelia Doyle ,  Greggory R. Herr ,  Juliana E. Pronovici ,  Todd J. Sheldon

IPC: A61N1/362 ,  A61N1/375 ,  A61B5/00 ,  A61B5/021 ,  A61N1/368 ,  A61B5/024 ,  A61N1/36

CPC classification number: A61N1/37512 ,  A61B5/0006 ,  A61B5/024 ,  A61B5/02116 ,  A61B5/02125 ,  A61B5/721 ,  A61B5/7282 ,  A61N1/3682 ,  A61N1/36175 ,  A61N1/36843

Abstract: A pacemaker having a motion sensor is configured to set atrial event sensing parameters used for sensing atrial systolic events from a motion signal produced by the motion sensor. The pacemaker sets at least one atrial event sensing parameter by identifying ventricular electrical events and setting a sensing window following each of the ventricular electrical events. The pacemaker may determine a feature of the motion signal produced by the motion sensor during each of the sensing windows and set the atrial event sensing parameter based on the determined features.

公开(公告)号：US11684784B2

公开(公告)日：2023-06-27

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

IPC: A61N1/365 ,  A61N1/375 ,  A61N1/368 ,  A61N1/372

CPC classification number: A61N1/36542 ,  A61N1/3688 ,  A61N1/3756 ,  A61N1/36507 ,  A61N1/36535 ,  A61N1/36578 ,  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.

公开(公告)号：US20220346693A1

公开(公告)日：2022-11-03

申请号：US17813242

申请日：2022-07-18

Applicant: Medtronic, Inc.

Inventor： Wade M. Demmer ,  Todd J. Sheldon ,  Saul E. Greenhut ,  James D. Reinke

IPC: A61B5/363 ,  A61N1/37 ,  A61N1/365 ,  A61N1/362 ,  A61N1/375 ,  A61B5/00

Abstract: The control module of a first pacemaker included in an implantable medical device system including the first pacemaker and a second pacemaker is configured to set a pacing escape interval in response to a far field pacing pulse sensed by the first pacemaker. The far field pacing pulse is a pacing pulse delivered by the second pacemaker. The pacing escape interval is allowed to continue without restarting the in response to a far field intrinsic event sensed by the first pacemaker during the pacing escape interval. The first pacemaker delivers a cardiac pacing pulse to the heart upon expiration of the pacing escape interval.

公开(公告)号：US20220314006A1

公开(公告)日：2022-10-06

申请号：US17655800

申请日：2022-03-22

Applicant: Medtronic, Inc.

Inventor： Matthew D. Bonner ,  Robert D. Musto ,  Wade M. Demmer ,  Todd J. Sheldon ,  Michelle M. Galarneau ,  Vinod Sharma ,  Maureen E. Lybarger ,  Greggory R. Herr ,  Alyssa L. Paul

IPC: A61N1/37 ,  A61N1/372 ,  A61N1/365

Abstract: A system includes an implantable medical device (IMD) and processing circuitry. The IMD includes sensing circuitry configured to sense cardiac electrical signals of a patient, and therapy delivery circuitry configured to deliver demand cardiac pacing to a heart of the patient based on the cardiac electrical signals. The processing circuitry is configured to: determine, for each of a plurality of time units, based on the cardiac electrical signals and the delivery of demand cardiac pacing during the time units, a plurality of metrics indicative of a need for continued delivery of demand cardiac pacing to the heart of the patient. The plurality of metrics includes a metric associated with a duration of one or more pacing episodes during the time unit. The processing circuitry is further configured to generate a graphical representation of the plurality of metrics of the plurality of time units for presentation to a user.

公开(公告)号：US11420067B2

公开(公告)日：2022-08-23

申请号：US16833965

申请日：2020-03-30

Applicant: Medtronic, Inc.

Inventor： Wade M. Demmer ,  Alexander R. Mattson ,  Todd J. Sheldon ,  Zhongping Yang

IPC: A61N1/365 ,  A61N1/368 ,  A61N1/37 ,  A61N1/39

Abstract: A medical device includes a motion sensor for producing a motion signal including cardiac event signals. The medical device generates a ventricular pacing pulse upon expiration of a pacing interval. The medical device determines a synchrony metric from the motion signal after a delivered ventricular pacing pulse and adjusts the pacing interval based on the synchrony metric.

公开(公告)号：US11357987B2

公开(公告)日：2022-06-14

申请号：US16654052

申请日：2019-10-16

Applicant: Medtronic, Inc.

Inventor： Vincent E. Splett ,  Todd J. Sheldon ,  Yong K. Cho ,  Wade M. Demmer ,  Mark K. Erickson

IPC: A61N1/36 ,  A61N1/365 ,  A61N1/368 ,  A61N1/375 ,  A61N1/372

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.

公开(公告)号：US20220062645A1

公开(公告)日：2022-03-03

申请号：US17401185

申请日：2021-08-12

Applicant: Medtronic, Inc.

Inventor： Jian Cao ,  Elizabeth A. Mattson ,  Todd J. Sheldon ,  Xiaohong Zhou ,  Wade M. Demmer

IPC: A61N1/37

Abstract: This disclosure is directed to devices and techniques for classifying of pacing captures to evaluate effectiveness of pacing by a pacing device, such as an implantable medical device (IMD). An example system includes stimulation circuitry to generate a pacing stimulus, sensing circuitry to sense an evoked response after the pacing stimulus, and processing circuitry. The processing circuitry determines classification features from the evoked response and applies the classification features to a classification model, the classification model generated by a machine learning algorithm using one or more test sets comprising a plurality of sample evoked responses for each of a plurality of classifications. Based on the output of the model, the processing circuitry classifies the evoke response as one of the plurality of classifications.