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

IPC: A61N1/368 ,  A61N1/365

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.

公开(公告)号：US20200179701A1

公开(公告)日：2020-06-11

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

IPC: A61N1/368 ,  A61N1/365

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.

公开(公告)号：US20180250505A1

公开(公告)日：2018-09-06

申请号：US15900831

申请日：2018-02-21

Applicant: Medtronic, Inc.

Inventor： Anthony W. SCHROCK ,  James W. BUSACKER ,  Kevin E. BAUMGART ,  Michael L. HUDZIAK ,  James D. REINKE ,  John D. WAHLSTRAND

IPC: A61N1/02 ,  A61N1/362 ,  A61N1/372 ,  A61N1/39

Abstract: In an example, an implantable medical device (IMD) includes a hold capacitor configured to deliver an electrical therapy pulse, and charge pump circuitry configured to transfer energy from the battery to the hold capacitor. In this example, the charge pump circuitry comprises a plurality of capacitors, and switching circuitry configured to put the charge pump circuitry into a K-factor mode selected from a group of K-factor modes by opening and closing a combination of switches connected to the plurality of capacitors.

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

IPC: A61N1/368 ,  A61N1/365

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.