公开(公告)号：US12151110B2

公开(公告)日：2024-11-26

申请号：US18424575

申请日：2024-01-26

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

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.

公开(公告)号：US11801385B2

公开(公告)日：2023-10-31

申请号：US17087960

申请日：2020-11-03

Applicant: Medtronic, Inc.

Inventor： Xusheng Zhang ,  Kevin L. Dehmer ,  Saul Greenhut ,  Troy E. Jackson ,  Yuanzhen Liu

IPC: A61N1/362 ,  A61B5/363

CPC classification number: A61N1/3621 ,  A61B5/363

Abstract: A medical device is configured to determine time intervals between consecutive cardiac events sensed from a cardiac electrical signal, increase a value of a tachyarrhythmia interval count in response to each of the determine time intervals detected as a tachyarrhythmia interval. The device is further configured to detect normal sinus rhythm events and the decrease the value of the tachyarrhythmia interval count in response to a threshold number of detected normal sinus rhythm events.

公开(公告)号：US11697027B2

公开(公告)日：2023-07-11

申请号：US17028645

申请日：2020-09-22

Applicant: Medtronic, Inc.

Inventor： Andrew J. Ries ,  Wade M. Demmer ,  Troy E. Jackson

IPC: A61N1/375

CPC classification number: A61N1/37512 ,  A61N1/3754

Abstract: An implantable medical device includes an electrically conductive first housing, a conductive feedthrough extending through the first housing, electronic circuitry positioned within the first housing, a device electrode, and a second housing. The electronic circuitry is electrically coupled to the first housing and the feedthrough, and senses electrical signals of a patient and/or delivers electrical stimulation therapy to the patient via the first housing and the feedthrough. The device electrode is configured to electrically connect with tissue and/or a fluid at a target site in the patient. A lead connector is configured to connect to a proximal end of an implantable medical lead. The lead connector includes a first connector contact electrically coupled to the feedthrough and a second connector contact electrically coupled to the first housing.

公开(公告)号：US20210299444A1

公开(公告)日：2021-09-30

申请号：US17345627

申请日：2021-06-11

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

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.

公开(公告)号：US20210236818A1

公开(公告)日：2021-08-05

申请号：US17301923

申请日：2021-04-19

Applicant: Medtronic, Inc.

Inventor： Troy E. Jackson ,  Vincent P. Ganion

IPC: A61N1/362 ,  A61N1/05 ,  A61N1/37 ,  A61N1/375 ,  A61N1/39

Abstract: A medical device comprises therapy delivery circuitry and processing circuitry. The therapy delivery circuitry is configured to deliver anti-tachycardia pacing (ATP) therapy to a heart of a patient. The ATP therapy includes one or more pulse trains and each of the one or more pulse trains includes a plurality of pacing pulses. The processing circuitry is configured to, for at least one of the plurality of pacing pulses of at least one of the one or more pulse trains, determine at least one latency metric of an evoked response of the heart to the pacing pulse. The processing circuitry is further configured to modify the ATP therapy based on the at least one latency metric.

公开(公告)号：US11033745B2

公开(公告)日：2021-06-15

申请号：US16171733

申请日：2018-10-26

Applicant: Medtronic, Inc.

Inventor： Jonathan D. Edmonson ,  Troy E. Jackson ,  Robert W. Stadler

IPC: A61N1/362 ,  A61N1/365 ,  A61N1/37 ,  A61N1/375 ,  A61N1/39

Abstract: A pacemaker is configured to deliver pacing pulses that lead pacing pulses delivered by another medical device. The pacemaker may detect pacing pulses delivered by the other medical device by a pulse detector circuit of the pacemaker, produce a pulse detect signal in response to each one of the detected pacing pulses, determine a pulse detect interval between two pulse detect signals consecutively produced by the pulse detector circuit, set a pacing escape interval based on the pulse detect interval less a pre-interval, and deliver a pacing pulse upon expiration of the pacing escape interval.

公开(公告)号：US09468392B2

公开(公告)日：2016-10-18

申请号：US14615699

申请日：2015-02-06

Applicant: Medtronic, Inc.

Inventor： Troy E. Jackson

IPC: A61B5/0464 ,  A61N1/37 ,  A61N1/39 ,  A61B5/11 ,  A61B5/00

CPC classification number: A61B5/0464 ,  A61B5/1118 ,  A61B5/686 ,  A61N1/0587 ,  A61N1/3622 ,  A61N1/371 ,  A61N1/37205 ,  A61N1/3937

Abstract: Techniques for determining paced cardiac depolarization waveform morphological templates are described. For example, an implantable medical device (IMD) may sense a cardiac electrogram of a heart, identify cardiac depolarizations within the cardiac electrogram, and determine that the cardiac depolarizations are paced cardiac depolarizations resulting from delivery of a pacing pulse to the heart by another IMD without detecting the pacing pulse and without communicating with the other IMD. The IMD may identify paced cardiac depolarization waveforms of the paced cardiac depolarizations, determine a paced cardiac depolarization waveform morphological template based on the identified paced cardiac depolarization waveforms, determine a normal cardiac depolarization waveform morphological template based on the paced cardiac depolarization waveform morphological template, and compare the normal cardiac depolarization waveform morphological template to subsequent cardiac depolarization waveforms. The IMD may detect a cardiac tachyarrhythmia based on the above comparison.

Abstract translation: 描述了用于确定起搏心脏去极化波形形态模板的技术。 例如，可植入医疗装置（IMD）可以感测心脏的心脏电图，识别心脏电图中的心脏去极化，并且确定心脏去极化是由心脏去极化引起的，由心脏由另一个IMD递送到起搏脉冲 而不检测起搏脉冲，而不与其他IMD通信。 IMD可以鉴定节奏心脏去极化的节奏心脏去极化波形，基于所识别的起搏心脏去极化波形确定起搏心脏去极化波形形态模板，基于节奏心脏去极化波形态模板确定正常心脏去极化波形态模板，以及 将正常心脏去极化波形态模板与随后的心脏去极化波形进行比较。 IMD可以基于上述比较来检测心脏快速性心律失常。

公开(公告)号：US20140277221A1

公开(公告)日：2014-09-18

申请号：US13832162

申请日：2013-03-15

Applicant: MEDTRONIC, INC.

Inventor： Sandra B. Charlton ,  Troy E. Jackson ,  Benjamin P. Rhodes

IPC: A61N1/39 ,  A61N1/362

CPC classification number: A61N1/3931 ,  A61N1/3622 ,  A61N1/3925 ,  A61N1/395 ,  A61N1/3962 ,  A61N1/3987

Abstract: A medical device and method for detecting and classifying cardiac rhythm episodes that includes a sensing module to sense cardiac events; a therapy delivery module, and a detection module configured to determine intervals between the sensed cardiac events, determine a predetermined cardiac episode is occurring in response to the determined intervals, determine whether a ventricular rate is greater than an atrial rate in response to the determined intervals, determine whether oversensing is occurring in response to the ventricular rate being greater than the atrial rate, adjust the determined intervals in response to oversensing occurring to generate an adjusted ventricular rate, determine whether the cardiac episode is occurring in response to the adjusted ventricular rate, perform a supraventricular tachycardia (SVT) discrimination analysis in response to the cardiac episode occurring in response to the adjusted ventricular rate, and control the therapy delivery module to deliver therapy in response to the SVT discrimination analysis.

Abstract translation: 一种用于检测和分类心律发作的医疗装置和方法，其包括用于感测心脏事件的感测模块; 治疗递送模块和被配置为确定感测的心脏事件之间的间隔的检测模块，确定响应于所确定的间隔发生的预定心脏发作，响应于所确定的间隔来确定心室率是否大于心房率 确定是否响应于心室率超过心房率而发生过敏，根据发生的过度调整确定的间隔以产生调整的心室率，确定心脏发作是否响应于调整的心室率而发生， 执行室上性心动过速（SVT）辨别分析以响应于调整的心室率发生的心脏发作，并且响应于SVT鉴别分析来控制治疗递送模块进行治疗。

公开(公告)号：US20140276160A1

公开(公告)日：2014-09-18

申请号：US13833171

申请日：2013-03-15

Applicant: MEDTRONIC, INC.

Inventor： Xusheng Zhang ,  Mark L. Brown ,  Paul J. DeGroot ,  Saul E. Greenhut ,  Troy E. Jackson

IPC: A61B5/0464 ,  A61B5/046 ,  A61N1/39

CPC classification number: A61B5/0464 ,  A61B5/04525 ,  A61B5/046 ,  A61B5/6869 ,  A61B5/7264 ,  A61N1/3621 ,  A61N1/395 ,  A61N1/3956

Abstract: A medical device and associated method for detecting and treating tachyarrhythmias acquires a cardiac signal using electrodes coupled to a sensing module. Cardiac events are sensed from the cardiac signal and a processing module computes a first morphology metric for each sensed cardiac event occurring during a time segment of the cardiac signal. The first morphology metrics corresponding to an event originating in a ventricular chamber are counted. The first processing module computes a second morphology metric for the time segment of the cardiac signal in response to the count of the first morphology metrics meeting a threshold number of events. The time segment is classified as a shockable segment in response to the second morphology metric meeting a detection criterion.

Abstract translation: 用于检测和治疗快速性心律失常的医疗装置和相关联的方法使用耦合到感测模块的电极获取心脏信号。 从心脏信号感测心脏事件，并且处理模块计算在心脏信号的时间段期间发生的每个感测到的心脏事件的第一形态度量。 计算对应于起始于心室的事件的第一形态学指标。 第一处理模块响应于满足阈值数量事件的第一形态学量度的计数，计算心脏信号的时间段的第二形态度量。 响应于符合检测标准的第二形态度量，该时间段被分类为可震击段。