公开(公告)号：US12251567B2

公开(公告)日：2025-03-18

申请号：US17531699

申请日：2021-11-19

Applicant: Medtronic, Inc.

Inventor： Wade M. Demmer ,  Juliana E. Pronovici ,  Todd J. Sheldon

IPC: A61N1/36 ,  A61B5/00 ,  A61B5/024 ,  A61B5/026 ,  A61B5/11 ,  A61B5/287 ,  A61B5/349 ,  A61B5/352 ,  A61N1/02 ,  A61N1/05 ,  A61N1/365 ,  A61N1/368 ,  A61N1/37 ,  A61N1/372 ,  A61N1/375

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.

公开(公告)号：US12214208B2

公开(公告)日：2025-02-04

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

IPC: A61N1/36 ,  A61N1/365 ,  A61N1/368 ,  A61N1/375 ,  A61N1/05 ,  A61N1/372

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.

公开(公告)号：US12186569B2

公开(公告)日：2025-01-07

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

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

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：US11957482B2

公开(公告)日：2024-04-16

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

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：US11752353B2

公开(公告)日：2023-09-12

申请号：US16990188

申请日：2020-08-11

Applicant: Medtronic, Inc.

Inventor： Wade M. Demmer ,  Yong K. Cho ,  Michael F. Hess ,  Todd J. Sheldon

IPC: A61N1/378 ,  A61N1/375 ,  A61N1/368 ,  A61N1/372 ,  A61N1/37 ,  A61B5/318

CPC classification number: A61N1/3787 ,  A61N1/3684 ,  A61N1/3756 ,  A61N1/37288 ,  A61N1/37512 ,  A61B5/318 ,  A61N1/3708 ,  A61N1/37518

Abstract: Techniques for minimizing rate of depletion of a non-rechargeable power source, to extend the operational lifetime of an implantable medical device that includes the non-rechargeable power source, by enforcing operational-mode-specific communication protocols whereby inter-device communication between the implantable medical device and another implantable medical device is such that level of power draw from the non-rechargeable power source by the implantable medical device is less than level of power draw from the rechargeable power source by the another implantable medical device for the implantable medical devices to engage in communication with each other.

公开(公告)号：US11717688B2

公开(公告)日：2023-08-08

申请号：US17221404

申请日：2021-04-02

Applicant: Medtronic, Inc.

Inventor： Michelle M. Galarneau ,  Vincent P. Ganion ,  Saul E. Greenhut ,  Yanina Grinberg ,  Todd J. Sheldon ,  Paul R. Solheim ,  Hyun J. Yoon

IPC: A61N1/365 ,  A61N1/02 ,  A61N1/372 ,  G16H20/30 ,  G16H40/67

CPC classification number: A61N1/36578 ,  A61N1/025 ,  A61N1/36507 ,  A61N1/36535 ,  A61N1/36542 ,  A61N1/36585 ,  A61N1/37211 ,  G16H20/30 ,  G16H40/67

Abstract: A medical device includes a motion sensor configured to sense a motion signal. The medical device includes a control circuit configured to determine at least one ventricular event metric from the motion signal sensed over multiple of atrial cycles, determine that the ventricular event metric meets atrioventricular block criteria and generate an output in response to determining the atrioventricular block.

公开(公告)号：US11628298B2

公开(公告)日：2023-04-18

申请号：US16410117

申请日：2019-05-13

Applicant: Medtronic, Inc.

Inventor： Hyun J. Yoon ,  Michael L. Ellingson ,  Wade M. Demmer ,  Jonathan D. Edmonson ,  Matthew J. Hoffman ,  Ben W. Herberg ,  James D. Reinke ,  Todd J. Sheldon ,  Paul R. Solheim ,  Alison M. Seacord

IPC: A61N1/37 ,  A61N1/08 ,  A61N1/39

Abstract: Implantable medical devices automatically switch from a normal mode of operation to an exposure mode of operation and back to the normal mode of operation. The implantable medical devices may utilize hysteresis timers in order to determine if entry and/or exit criteria for the exposure mode are met. The implantable medical devices may utilize additional considerations for entry to the exposure mode such as a confirmation counter or a moving buffer of sensor values. The implantable medical devices may utilize additional considerations for exiting the exposure mode of operation and returning to the normal mode, such as total time in the exposure mode, patient position, and high voltage source charge time in the case of devices with defibrillation capabilities.

公开(公告)号：US11617889B2

公开(公告)日：2023-04-04

申请号：US16387894

申请日：2019-04-18

Applicant: Medtronic, Inc.

Inventor： Todd J. Sheldon ,  Wade M. Demmer ,  Vincent P. Ganion ,  Juliana E. Pronovici ,  Vincent E. Splett ,  Menglong Xing

IPC: A61N1/362 ,  A61N1/368 ,  A61N1/365 ,  A61N1/37 ,  A61B5/00 ,  A61B5/287

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：US20220362557A1

公开(公告)日：2022-11-17

申请号：US17663350

申请日：2022-05-13

Applicant: Medtronic, Inc.

Inventor： Shailesh Kumar V. Musley ,  Maneesh Shrivastav ,  Abhijit Kadrolkar ,  Todd J. Sheldon ,  Vinod Sharma

IPC: A61N1/365 ,  A61N1/372 ,  A61B5/00 ,  A61B5/053 ,  A61B5/07

Abstract: A system comprises an implantable medical device configured to generate temperature data and impedance data associated with temperature and impedance of a patient proximate to the implantable medical device. The system further comprises processing circuitry configured to determine whether a first one or more infection criteria are satisfied by temperature data and impedance data generated by the implantable medical device during a first time interval, wherein the first one or more infection criteria include at least one criterion indicative of decreased impedance, determine whether a second one or more infection criteria are satisfied by the temperature data and impedance data generated by the implantable medical device during a second time interval subsequent to the first time interval, wherein the second one or more infection criteria include at least one criterion indicative of increased impedance, and output, based on satisfaction of the first and second infection criteria, an indication of infection.

公开(公告)号：US11484719B2

公开(公告)日：2022-11-01

申请号：US16786493

申请日：2020-02-10

Applicant: Medtronic, Inc.

Inventor： Wade M. Demmer ,  Todd J. Sheldon

IPC: A61N1/37 ,  A61N1/36 ,  A61N1/365

Abstract: An implantable medical device is configured determine a numerical value of a variable that is monitored by the implantable medical device and convert the numerical value to a data sequence of modulated electrical stimulation rate intervals. The implantable medical device delivers electrical stimulation pulses according to the data sequence of modulated stimulation rate intervals to cause a modulated rate of activation of excitable tissue of a patient corresponding to the modulated stimulation rate intervals. The modulated rate of activation is detectable by a rate monitor for demodulation to the numerical value of the monitored variable data value. In some examples, the implantable medical device is a pacemaker delivering cardiac pacing pulses according to modulated pacing rate intervals to cause a modulated heart rate of the patient detectable by a heart rate monitor for demodulation to the numerical value of the monitored variable.