公开(公告)号：US20230181912A1

公开(公告)日：2023-06-15

申请号：US17989599

申请日：2022-11-17

Applicant: MEDTRONIC, INC.

Inventor： Jonathan D. Edmonson ,  Michael W. Heinks

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

CPC classification number: A61N1/3718 ,  A61N1/37217 ,  A61N1/36542

Abstract: Implantable medical devices include a first sensor for detecting a magnetic field that indicates an exposure mode of operation is appropriate. The implantable medical devices include a second sensor for detecting whether an MRI characteristic is present that indicates whether MRI or non-MRI post exposure diagnostics and other actions should be implemented and may also indicate whether the exposure mode should be MRI or non-MRI specific. An MRI post exposure diagnostic may perform pacing capture threshold tests and the post exposure pacing amplitude output may be kept at a higher than normal level. The second sensor may be an overvoltage clamp circuit of a telemetry coil that indicates whether an overvoltage condition on the telemetry coil is occurring to indicate whether an MRI characteristic is present. The second sensor may be a second threshold magnetic sensor, an accelerometer, or a microphone to indicate whether an MRI characteristic is present.

公开(公告)号：US11413469B2

公开(公告)日：2022-08-16

申请号：US16696129

申请日：2019-11-26

Applicant: Medtronic, Inc.

Inventor： Jian Cao ,  Timothy A. Ebeling ,  Saul E. Greenhut ,  Michael W. Heinks ,  Irving J. Sanchez ,  Paul R. Solheim ,  Xusheng Zhang ,  Gerald P. Arne

IPC: A61N1/39 ,  A61B5/00 ,  A61B5/287 ,  A61B5/352 ,  A61N1/05 ,  A61N1/362 ,  A61N1/365 ,  A61B5/361

Abstract: An implantable medical device system capable of sensing cardiac electrical signals includes a sensing circuit, a therapy delivery circuit and a control circuit. The sensing circuit is configured to receive a cardiac electrical signal and sense a cardiac event in response to the signal crossing a cardiac event sensing threshold. The therapy delivery circuit is configured to deliver an electrical stimulation therapy to a patient's heart via the electrodes coupled to the implantable medical device. The control circuit is configured to control the sensing circuit to set a starting value of the cardiac event sensing threshold and hold the starting value constant for a sense delay interval. The control circuit is further configured to detect an arrhythmia based on cardiac events sensed by the sensing circuit and control the therapy delivery circuit to deliver the electrical stimulation therapy in response to detecting the arrhythmia.

公开(公告)号：US20210038905A1

公开(公告)日：2021-02-11

申请号：US17068011

申请日：2020-10-12

Applicant: Medtronic, Inc.

Inventor： Jian Cao ,  Gerald P. Arne ,  Timothy A. Ebeling ,  Yanina Grinberg ,  Michael W. Heinks ,  Paul R. Solheim ,  Xusheng Zhang

IPC: A61N1/39 ,  A61N1/362 ,  A61N1/365 ,  A61N1/372

Abstract: An implantable medical device system is configured to sense cardiac events in response to a cardiac electrical signal crossing a cardiac event sensing threshold. A control circuit is configured to determine a drop time interval based on a heart rate and control a sensing circuit to hold the cardiac event sensing threshold at a threshold value during the drop time interval.

公开(公告)号：US20160339248A1

公开(公告)日：2016-11-24

申请号：US15135288

申请日：2016-04-21

Applicant: Medtronic, Inc.

Inventor： Anthony W. Schrock ,  Jean E. Hudson ,  Karen J. Kleckner ,  John D. Wahlstrand ,  Michael W. Heinks ,  Michael L. Hudziak ,  Subham Ghosh ,  Aleksandre T. Sambelashvili

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

CPC classification number: A61N1/3684 ,  A61N1/3627 ,  A61N1/36514 ,  A61N1/36571 ,  A61N1/3686 ,  A61N1/3712

Abstract: An implantable device and associated method for delivering multi-site pacing therapy is disclosed. The device comprises a set of electrodes including a first ventricular electrode and a second ventricular electrode, spatially separated from one another and all coupled to an implantable pulse generator. The device comprises a processor configured for selecting a first cathode and a first anode from the set of electrodes to form a first pacing vector at a first pacing site along a heart chamber and selecting a second cathode and a second anode from the set of electrodes to form a second pacing vector at a second pacing site along the same heart chamber. The pulse generator is configured to deliver first pacing pulses to the first pacing vector and delivering second pacing pulses to the second pacing vector. The pulse generator generates a recharging current for recharging a first coupling capacitor over a first recharge time period in response to the first pacing pulses. The pulse generator for generating a recharging current for recharging a second coupling capacitor over a second recharge time period in response to the second pacing pulses. An order of recharging the first and second coupling capacitors is dependent upon one of ventricular pacing mode, left ventricle to right ventricle delay (V-V) pace delay, multiple point LV delay and latest delivered pacing pulses to one of the first and second pacing vectors.

Abstract translation: 公开了用于输送多部位起搏治疗的可植入装置和相关方法。 该装置包括一组电极，包括第一心室电极和第二心室电极，在空间上彼此分离并且全部耦合到可植入脉冲发生器。 该装置包括处理器，该处理器被配置为从该组电极中选择第一阴极和第一阳极，以沿着心脏室在第一起搏部位处形成第一起搏向量，并从该组电极选择第二阴极和第二阳极， 在同一心室的第二起搏部位形成第二起搏向量。 脉冲发生器被配置为将第一起搏脉冲传送到第一起搏矢量并将第二起搏脉冲传送到第二起搏矢量。 脉冲发生器响应于第一起搏脉冲产生用于在第一再充电时间段内为第一耦合电容器再充电的再充电电流。 所述脉冲发生器用于产生用于响应于所述第二起搏脉冲在第二再充电时间段内为第二耦合电容器再充电的再充电电流。 对第一和​​第二耦合电容器再充电的顺序取决于心室起搏模式，左心室到右心室延迟（V-V）步速延迟，多点LV延迟和最近发出的起搏脉冲之一到第一和第二起搏矢量之一。

公开(公告)号：US20230129026A1

公开(公告)日：2023-04-27

申请号：US18069218

申请日：2022-12-20

Applicant: Medtronic, Inc.

Inventor： Jian Cao ,  Gerald P. Arne ,  Timothy A. Ebeling ,  Yanina Grinberg ,  Michael W. Heinks ,  Paul R. Solheim ,  Xusheng Zhang

IPC: A61N1/39 ,  A61N1/362 ,  A61N1/365 ,  A61N1/372

Abstract: An implantable medical device system is configured to sense cardiac events in response to a cardiac electrical signal crossing a cardiac event sensing threshold. A control circuit is configured to determine a drop time interval based on a heart rate and control a sensing circuit to hold the cardiac event sensing threshold at a threshold value during the drop time interval.

公开(公告)号：US09278229B1

公开(公告)日：2016-03-08

申请号：US14603631

申请日：2015-01-23

Applicant: Medtronic, Inc.

Inventor： James D. Reinke ,  Glenn M. Roline ,  Shohan T. Hossain ,  Michael W. Heinks

IPC: A61N1/00 ,  A61N1/39 ,  A61N1/362 ,  A61N1/37

CPC classification number: A61N1/3962 ,  A61N1/3621 ,  A61N1/3624 ,  A61N1/37 ,  A61N1/3756 ,  A61N1/3937

Abstract: An implantable pacemaker detects delivery of an anti-tachyarrhythmia shock by another device. The implantable pacemaker delivers cardiac stimulation therapy within a patient. The implantable pacemaker senses, via the electrode pair, an electrical signal. The implantable pacemaker detects the anti-tachyarrhythmia shock based on the sensed electrical signal by detecting DC voltage polarization across the electrode pair within the patient. The implantable pacemaker alters the cardiac stimulation therapy based on the detected anti-tachyarrhythmia shock.

Abstract translation: 植入式起搏器检测另一装置的抗快速性心律失常性休克的传递。 植入式起搏器在患者体内提供心脏刺激治疗。 植入式起搏器通过电极对感测电信号。 可植入心脏起搏器通过检测患者内的电极对上的直流电压偏振来检测基于感测到的电信号的抗快速性心律失常性休克。 植入式起搏器基于检测到的抗快速性心律失常休克改变心脏刺激疗法。