Systems and methods for leadless pacing and shock therapy
    11.
    发明授权
    Systems and methods for leadless pacing and shock therapy 有权
    无引导起搏和休克疗法的系统和方法

    公开(公告)号:US08744572B1

    公开(公告)日:2014-06-03

    申请号:US13756085

    申请日:2013-01-31

    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。

    Pacing therapy selection for heart failure treatment

    公开(公告)号:US12064636B2

    公开(公告)日:2024-08-20

    申请号:US17361500

    申请日:2021-06-29

    Abstract: A method for heart failure management includes monitoring one or more sensor-based parameters for a patient to determine a pacing therapy. If the one or more parameters indicate atrial tachycardia or atrial fibrillation, a first pacing therapy is delivered. If the one or more parameters do not indicate atrial tachycardia or atrial fibrillation, it is determined whether the patient is asleep. If the patient is asleep, a second pacing therapy is delivered. If the one or more parameters do not indicate atrial tachycardia, atrial fibrillation, or that the patient is asleep, the patient's P-wave duration is evaluated with respect to a P-wave duration threshold value. When the patient's P-wave duration is determined to exceed the P-wave duration threshold value, a third pacing therapy is delivered, and when the patient's P-wave duration is determined to not exceed the P-wave duration threshold value, a fourth pacing therapy is delivered.

    DETERMINATION OF LOWER PACING RATE LIMIT
    15.
    发明公开

    公开(公告)号:US20230347154A1

    公开(公告)日:2023-11-02

    申请号:US18138686

    申请日:2023-04-24

    CPC classification number: A61N1/36592 A61N1/37235

    Abstract: A lower pacing rate limit is utilized by pacing devices to initiate pacing in response to a patient's intrinsic rate being less than the lower pacing rate limit. Illustrative systems, devices, and methods may obtain rate modification information related to a patient such as physical characteristics, diagnostic parameters, pathologies, device characteristics of a pacing device implanted in the patient, and patient-reported information. The rate modification information may be used to determine lower pacing rate limit based thereon.

    PACING THERAPY SELECTION FOR HEART FAILURE TREATMENT

    公开(公告)号:US20220032067A1

    公开(公告)日:2022-02-03

    申请号:US17361500

    申请日:2021-06-29

    Abstract: A method for heart failure management includes monitoring one or more sensor-based parameters for a patient to determine a pacing therapy. If the one or more parameters indicate atrial tachycardia or atrial fibrillation, a first pacing therapy is delivered. If the one or more parameters do not indicate atrial tachycardia or atrial fibrillation, it is determined whether the patient is asleep. If the patient is asleep, a second pacing therapy is delivered. If the one or more parameters do not indicate atrial tachycardia, atrial fibrillation, or that the patient is asleep, the patient's P-wave duration is evaluated with respect to a P-wave duration threshold value. When the patient's P-wave duration is determined to exceed the P-wave duration threshold value, a third pacing therapy is delivered, and when the patient's P-wave duration is determined to not exceed the P-wave duration threshold value, a fourth pacing therapy is delivered.

    SYNCHRONIZATION OF ANTI-TACHYCARDIA PACING IN AN EXTRA-CARDIOVASCULAR IMPLANTABLE SYSTEM

    公开(公告)号:US20210275809A1

    公开(公告)日:2021-09-09

    申请号:US17323008

    申请日:2021-05-18

    Inventor: Troy E. Jackson

    Abstract: An extra-cardiovascular implantable cardioverter defibrillator (ICD) system receives a cardiac electrical signal by an electrical sensing circuit via an extra-cardiovascular sensing electrode vector and senses cardiac events from the cardiac electrical signal. The ICD system detects tachycardia from the cardiac electrical signal and determines a tachycardia cycle length from the cardiac electrical signal. The ICD system determines an ATP interval based on the tachycardia cycle length and sets an extended ATP interval that is longer than the ATP interval. The ICD delivers ATP pulses to a patient's heart via an extra-cardiovascular pacing electrode vector different than the sensing electrode vector. The ATP pulses include a leading ATP pulse delivered at the extended ATP interval after a cardiac event is sensed from the cardiac electrical signal and a second ATP pulse delivered at the ATP interval following the leading ATP pulse.

    Synchronization of anti-tachycardia pacing in an extra-cardiovascular implantable system

    公开(公告)号:US11027132B2

    公开(公告)日:2021-06-08

    申请号:US15071231

    申请日:2016-03-16

    Inventor: Troy E. Jackson

    Abstract: An extra-cardiovascular implantable cardioverter defibrillator (ICD) system receives a cardiac electrical signal by an electrical sensing circuit via an extra-cardiovascular sensing electrode vector and senses cardiac events from the cardiac electrical signal. The ICD system detects tachycardia from the cardiac electrical signal and determines a tachycardia cycle length from the cardiac electrical signal. The ICD system determines an ATP interval based on the tachycardia cycle length and sets an extended ATP interval that is longer than the ATP interval. The ICD delivers ATP pulses to a patient's heart via an extra-cardiovascular pacing electrode vector different than the sensing electrode vector. The ATP pulses include a leading ATP pulse delivered at the extended ATP interval after a cardiac event is sensed from the cardiac electrical signal and a second ATP pulse delivered at the ATP interval following the leading ATP pulse.

    CARDIAC PACING DEVICE WITH MECHANICAL MODE SWITCHING

    公开(公告)号:US20210106837A1

    公开(公告)日:2021-04-15

    申请号:US17028645

    申请日:2020-09-22

    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.

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