公开(公告)号：US12251566B2

公开(公告)日：2025-03-18

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 ,  A61N1/362 ,  A61N1/368 ,  A61B5/00 ,  A61B5/287 ,  A61B5/352 ,  A61N1/37

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.

公开(公告)号：US12220585B2

公开(公告)日：2025-02-11

申请号：US17542328

申请日：2021-12-03

Applicant: Medtronic, Inc.

Inventor： Todd J. Sheldon ,  Vincent P. Ganion ,  Greggory R. Herr ,  Michael L. Hudziak ,  Juliana E. Pronovici ,  Paul R. Solheim

IPC: A61N1/365 ,  A61N1/372 ,  A61N1/378

Abstract: A medical device is configured to produce a cardiac motion signal by sampling a signal produced by an axis of a motion sensor, starting a blanking period, suspending the sampling of the signal during at least a portion of the blanking period, and restarting the sampling of the signal at the sampling frequency before the blanking period has expired. The medical device may detect a cardiac event from the cardiac motion signal and generate a pacing pulse in response to detecting the cardiac event in some examples.

公开(公告)号：US12138461B2

公开(公告)日：2024-11-12

申请号：US17391118

申请日：2021-08-02

Applicant: Medtronic, Inc.

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

IPC: A61N1/368 ,  A61N1/365 ,  A61N1/37 ,  A61N1/372 ,  A61N1/375 ,  A61N1/362

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.

公开(公告)号：US12076569B2

公开(公告)日：2024-09-03

申请号：US17813925

申请日：2022-07-20

Applicant: Medtronic, Inc.

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

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

CPC classification number: A61N1/36592 ,  A61N1/36578 ,  A61N1/3684 ,  A61N1/3706 ,  A61N1/39622

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：US20240188885A1

公开(公告)日：2024-06-13

申请号：US18582394

申请日：2024-02-20

Applicant: Medtronic, Inc.

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

IPC: A61B5/00 ,  A61B5/318 ,  A61B5/363 ,  A61N1/362 ,  A61N1/365 ,  A61N1/37 ,  A61N1/372 ,  A61N1/375

CPC classification number: A61B5/4836 ,  A61B5/363 ,  A61B5/686 ,  A61N1/3622 ,  A61N1/36592 ,  A61N1/3706 ,  A61N1/3756 ,  A61B5/318 ,  A61N1/37205

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：US11998750B2

公开(公告)日：2024-06-04

申请号：US18069227

申请日：2022-12-20

Applicant: Medtronic, Inc.

Inventor： Todd J. Sheldon ,  Elizabeth A. Mattson ,  Eric R. Williams ,  Zhongping Yang ,  Shawn M. Campbell

IPC: A61N1/37 ,  A61B5/00 ,  A61B5/29 ,  A61B5/361 ,  A61B5/363 ,  A61B5/366 ,  A61N1/365 ,  A61N1/372 ,  A61N1/378 ,  A61N1/39 ,  A61N1/375

CPC classification number: A61N1/371 ,  A61B5/29 ,  A61B5/361 ,  A61B5/363 ,  A61B5/366 ,  A61B5/4836 ,  A61B5/686 ,  A61N1/365 ,  A61N1/3714 ,  A61N1/37223 ,  A61N1/37247 ,  A61N1/3787 ,  A61N1/3956 ,  A61N1/3756

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.

公开(公告)号：US11850433B2

公开(公告)日：2023-12-26

申请号：US16703320

申请日：2019-12-04

Applicant: Medtronic, Inc.

Inventor： Vincent E. Splett ,  Juliana E. Pronovici ,  Todd J. Sheldon

IPC: A61N1/37 ,  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 select an atrial event sensing vector of a multi-axis motion sensor for sensing atrial systolic events from a motion signal produced by the motion sensor. In some examples, the pacemaker determines a maximum amplitude during a sensing window for each one of multiple vector signals produced by the multi-axis motion sensor. The pacemaker may select the atrial event sensing vector signal from among the vector signals based on the determined maximum amplitudes.

公开(公告)号：US11826574B2

公开(公告)日：2023-11-28

申请号：US17159635

申请日：2021-01-27

Applicant: Medtronic, Inc.

Inventor： Todd J. Sheldon ,  Paul R. Solheim ,  Vincent E. Splett

IPC: A61N1/00 ,  A61N1/365 ,  A61N1/02 ,  A61N1/375 ,  G16H40/67 ,  G16H50/30 ,  G16H20/30 ,  A61N1/372 ,  A61N1/05

CPC classification number: A61N1/36542 ,  A61N1/025 ,  A61N1/3756 ,  A61N1/37512 ,  G16H20/30 ,  G16H40/67 ,  G16H50/30 ,  A61N1/0573 ,  A61N1/37211

Abstract: A medical device includes a motion sensor configured to produce a motion signal and a control circuit configured to sense atrial events from the motion signal. In some examples, the control circuit is configured to set a ventricular diastolic event window and set a threshold amplitude during the ventricular diastolic event window for sensing an atrial event in response to the motion signal crossing the threshold amplitude during the ventricular diastolic window. The control circuit may determine a maximum amplitude of the motion signal during the ventricular diastolic event window for multiple ventricular cycles and determine an amplitude metric based on at least a portion of the determined maximum amplitudes. The control circuit may determine a target value of the threshold amplitude based on at least the amplitude metric and adjust the threshold amplitude toward the target value.

公开(公告)号：US11684785B2

公开(公告)日：2023-06-27

申请号：US17369711

申请日：2021-07-07

Applicant: Medtronic, Inc.

Inventor： Todd J. Sheldon ,  Wade M. Demmer ,  Karen J. Kleckner ,  Douglas A. Peterson ,  Paul R. Solheim

IPC: A61N1/365 ,  A61N1/36

CPC classification number: A61N1/36542 ,  A61N1/36128 ,  A61N1/36585

Abstract: An implantable medical device includes an activity sensor, a pulse generator, and a control module. The control module is configured to determine activity metrics from the activity signal and determine an activity metric value at a predetermined percentile of the activity metrics. The control module sets a lower pacing rate set point based on the activity metric value at the predetermined percentile.

公开(公告)号：US20230053188A1

公开(公告)日：2023-02-16

申请号：US17814182

申请日：2022-07-21

Applicant: Medtronic, Inc.

Inventor： Yanina Grinberg ,  Kathryn E. Hilpisch ,  Eric R. Williams ,  Hyun J. Yoon ,  Todd J. Sheldon

IPC: A61N1/365 ,  A61B5/11 ,  A61B5/00

Abstract: A computing device may be communicably coupled to a first pacemaker implanted in a heart of a patient and a second pacemaker implanted in the heart of the patient. The computing device may receive, from the first pacemaker, first race responsive pacing data, and may receive, from the second pacemaker, second rate responsive pacing data. The computing device may synchronize, based at least in part on the first rate responsive pacing data and the second rate responsive pacing data, rate responsive pacing of the first pacemaker and the second pacemaker.