公开(公告)号：US20200038665A1

公开(公告)日：2020-02-06

申请号：US16600751

申请日：2019-10-14

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

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：US20190262604A1

公开(公告)日：2019-08-29

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: A61N1/08 ,  A61N1/37 ,  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：US20190160292A1

公开(公告)日：2019-05-30

申请号：US16204172

申请日：2018-11-29

Applicant: Medtronic, Inc.

Inventor： David J. PEICHEL ,  Jonathan P. ROBERTS ,  James D. REINKE ,  Michael B. TERRY

IPC: A61N1/372 ,  A61N1/375 ,  A61N1/39

Abstract: A device, such as an IMD, having a tissue conductance communication (TCC) transmitter controls a drive signal circuit and a polarity switching circuit by a controller of the TCC transmitter to generate an alternating current (AC) ramp on signal having a peak amplitude that is stepped up from a starting peak-to-peak amplitude to an ending peak-to-peak amplitude according to a step increment and step up interval. The TCC transmitter is further controlled to transmit the AC ramp on signal from the drive signal circuit and the polarity switching circuit via a coupling capacitor coupled to a transmitting electrode vector coupleable to the IMD. After the AC ramp on signal, the TCC transmitter transmits at least one TCC signal to a receiving device.

公开(公告)号：US20190160290A1

公开(公告)日：2019-05-30

申请号：US16202418

申请日：2018-11-28

Applicant: Medtronic, Inc.

Inventor： Jonathan P. ROBERTS ,  Michael T. HEMMING ,  David J. PEICHEL ,  James D. REINKE ,  Michael B. TERRY

IPC: A61N1/372 ,  A61N1/39 ,  A61N1/365 ,  H04B13/00

Abstract: A device includes a tissue conduction communication (TCC) transmitter that generates a TCC signal including a carrier signal having a peak-to-peak amplitude and a carrier frequency cycle length including a first polarity pulse for a first half of the carrier frequency cycle length and a second polarity pulse opposite the first polarity pulse for a second half of the carrier frequency cycle length. Each of the first polarity pulse and the second polarity pulse inject a half cycle charge into a TCC pathway. The TCC transmitter starts transmitting the TCC signal with a starting pulse having a net charge that is half of the half cycle charge and transmits alternating polarity pulses of the carrier signal consecutively following the starting pulse.

公开(公告)号：US20190117104A1

公开(公告)日：2019-04-25

申请号：US16221921

申请日：2018-12-17

Applicant: Medtronic, Inc.

Inventor： Robert W. STADLER ,  Xusheng ZHANG ,  Vinod SHARMA ,  James D. REINKE ,  Barbara J. SCHMID

IPC: A61B5/0464 ,  A61B5/00 ,  A61B5/04 ,  A61N1/362 ,  A61N1/372 ,  A61N1/39 ,  A61N1/375

Abstract: An implantable medical device comprises a sensing module configured to obtain electrical signals from one or more electrodes and a control module configured to process the electrical signals from the sensing module in accordance with a tachyarrhythmia detection algorithm to monitor for a tachyarrhythmia. The control module detects initiation of a pacing train delivered by a second implantable medical device, determines a type of the detected pacing train, and modifies the tachyarrhythmia detection algorithm based on the type of the detected pacing train.

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：US20170043174A1

公开(公告)日：2017-02-16

申请号：US15334410

申请日：2016-10-26

Applicant: Medtronic, Inc.

Inventor： Saul E. GREENHUT ,  Robert J. NEHLS ,  Walter H. OLSON ,  Xusheng ZHANG ,  Wade M. DEMMER ,  Troy E. JACKSON ,  James D. REINKE

IPC: A61N1/39 ,  A61N1/375 ,  A61N1/365 ,  A61N1/372 ,  A61N1/05 ,  A61N1/362

CPC classification number: A61N1/3962 ,  A61N1/056 ,  A61N1/3621 ,  A61N1/36585 ,  A61N1/37288 ,  A61N1/3756 ,  A61N1/3987

Abstract: Techniques and systems for monitoring cardiac arrhythmias and delivering electrical stimulation therapy using a subcutaneous implantable cardioverter defibrillator (SICD) and a leadless pacing device (LPD) are described. For example, the SICD may detect a tachyarrhythmia within a first electrical signal from a heart and determine, based on the tachyarrhythmia, to deliver anti-tachyarrhythmia shock therapy to the patient to treat the detected arrhythmia. The LPD may receive communication from the SICD requesting the LPD deliver anti-tachycardia pacing to the heart and determine, based on a second electrical signal from the heart sensed by the LPD, whether to deliver anti-tachycardia pacing (ATP) to the heart. In this manner, the SICD and LPD may communicate to coordinate ATP and/or cardioversion/defibrillation therapy. In another example, the LPD may be configured to deliver post-shock pacing after detecting delivery of anti-tachyarrhythmia shock therapy.

Abstract translation: 描述了使用皮下植入式心律转复除颤器（SICD）和无引线起搏装置（LPD）监测心律不齐和递送电刺激治疗的技术和系统。 例如，SICD可以检测来自心脏的第一电信号内的快速性心律失常，并且基于快速性心律失常确定将抗心律失常休克疗法递送给患者以治疗所检测到的心律失常。 LPD可以接收来自SICD的通信，请求LPD向心脏提供抗心动过速起搏，并且基于由LPD感测到的心脏的第二电信号确定是否将心动过速（ATP）提供给心脏。 以这种方式，SICD和LPD可以通信以协调ATP和/或心脏复律/除颤疗法。 在另一个示例中，LPD可以被配置为在检测到抗快速性心律失常性休克疗法的递送之后递送后冲击起搏。

公开(公告)号：US20150305640A1

公开(公告)日：2015-10-29

申请号：US14686947

申请日：2015-04-15

Applicant: Medtronic, Inc.

Inventor： James D. REINKE ,  Xusheng ZHANG ,  Vinod SHARMA ,  Vladimir P. NIKOLSKI ,  Michael B. TERRY ,  Scott A. HARELAND ,  Daniel L. HANSEN ,  Donna M. SALMI

IPC: A61B5/0464 ,  A61B5/00 ,  A61B5/04

Abstract: In situations in which an implantable medical device (IMD) (e.g., an extravascular ICD) is co-implanted with a leadless pacing device (LPD), it may be important that the IMD knows when the LPD is delivering pacing, such as anti-tachycardia pacing (ATP). Techniques are described herein for detecting, with the IMD and based on the sensed electrical signal, pacing pulses and adjusting operation to account for the detected pulses, e.g., blanking the sensed electrical signal or modifying a tachyarrhythmia detection algorithm. In one example, the IMD includes a pace pulse detector that detects, based on the processing of sensed electrical signals, delivery of a pacing pulse from a second implantable medical device and blank, based on the detection of the pacing pulse, the sensed electrical signal to remove the pacing pulse from the sensed electrical signal.

Abstract translation: 在可植入医疗装置（IMD）（例如，血管外ICD））与无引线起搏装置（LPD）共同植入的情况下，IMD知道LPD何时发出起搏， 心动过速起搏（ATP）。 本文描述了用于利用IMD和基于感测到的电信号，起搏脉冲和调整操作来考虑检测到的脉冲的技术，例如消隐感测的电信号或修改快速性心律失常检测算法。 在一个示例中，IMD包括步速脉冲检测器，其基于感测到的电信号的处理，基于起搏脉冲的检测来检测来自第二可植入医疗设备和空白的起搏脉冲的传送，感测到的电信号 以从感测到的电信号中去除起搏脉冲。