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    Using biomarker information for heart failure risk computation
    32.
    发明授权
    Using biomarker information for heart failure risk computation 有权

    公开(公告)号：US10517542B2

    公开(公告)日：2019-12-31

    申请号：US14964529

    申请日：2015-12-09

    Applicant: Medtronic, Inc.

    Inventor： Vinod Sharma ,  Eduardo N Warman ,  Yong K Cho ,  Shantanu Sarkar

    IPC: A61B5/00 ,  G16H20/00 ,  G16H50/30 ,  G16H50/20 ,  A61B5/0205 ,  A61B5/044 ,  A61B5/145 ,  G16H15/00 ,  A61B5/046 ,  A61B5/0464 ,  A61B5/053 ,  A61B5/11

    Abstract: Provided is a method, system and/or apparatus for determining prospective heart failure event risk. Acquired from a device memory are a heart failure patient's current and preceding risk assessment periods. Counting detected data observations in the current risk assessment period for a current risk assessment total amount and counting detected data observations in the preceding risk assessment period for a preceding risk assessment period total amount. Associating the current risk assessment and preceding risk assessment total amounts with a lookup table to acquire prospective risk of heart failure (HF) event for the preceding risk assessment period and the current risk assessment period. Employing weighted sums of the prospective risk of the HF event for the preceding risk assessment period and the current risk assessment period to calculate a weighted prospective risk of the HF event for a patient. Displaying on a graphical user interface the weighted prospective risk of the HF event for the patient.

    SENSING FOR HEALTH STATUS MANAGEMENT
    33.
    发明申请
    SENSING FOR HEALTH STATUS MANAGEMENT 审中-公开

    公开(公告)号：US20190336077A1

    公开(公告)日：2019-11-07

    申请号：US15969407

    申请日：2018-05-02

    Applicant: Medtronic, Inc.

    Inventor： Jonathan L. Kuhn ,  James K. Carney ,  Shantanu Sarkar

    IPC: A61B5/00 ,  A61B5/0205 ,  A61B5/07 ,  A61B5/1455 ,  A61B5/1459 ,  A61B5/042

    Abstract: In some examples, determining a health status includes using an implantable medical device configured for subcutaneous implantation and comprising at least one optical sensor. Processing circuitry of a system comprising the device may determine, for a patient, a current tissue oxygen saturation value based on a first signal received from the at least one optical sensor and a current pulsatile oxygen saturation value based on a second signal received from the at least one optical sensor. The processing circuitry may further compare the current tissue oxygen saturation and current pulsatile oxygen saturation values to corresponding baseline values, determine corresponding heart failure and pulmonary statuses of the patient based on the comparisons, and determine the health status of the patient based on the statuses.

    SENSING FOR HEART FAILURE MANAGEMENT
    34.
    发明申请
    SENSING FOR HEART FAILURE MANAGEMENT 审中-公开

    公开(公告)号：US20190336076A1

    公开(公告)日：2019-11-07

    申请号：US15969369

    申请日：2018-05-02

    Applicant: Medtronic, Inc.

    Inventor： Jonathan L. Kuhn ,  James K. Carney ,  Vinod Sharma ,  Shantanu Sarkar ,  Todd M. Zielinski ,  Tommy D. Bennett

    IPC: A61B5/00 ,  A61B5/0205 ,  A61B5/042 ,  A61B5/07 ,  A61B5/1455 ,  A61B5/1459

    Abstract: In some examples, determining a heart failure status includes using an implantable medical device configured for subcutaneous implantation and comprising a plurality of electrodes and an optical sensor. Processing circuitry of a system comprising the device may determine, for a patient, a current tissue oxygen saturation value based on a signal received from the at least one optical sensor, a current tissue impedance value based on a subcutaneous tissue impedance signal received from the electrodes, and a current pulse transit time value based on a cardiac electrogram signal received from the electrodes and at least one of the signal received from the optical sensor and the subcutaneous tissue impedance signal. The processing circuitry may further compare the current tissue oxygen saturation value, current tissue impedance value, and current pulse transit time value to corresponding baseline values, and determine the heart failure status of the patient based on the comparison.

    METHOD AND APPARATUS FOR ATRIAL ARRHYTHMIA EPISODE DETECTION
    40.
    发明申请
    METHOD AND APPARATUS FOR ATRIAL ARRHYTHMIA EPISODE DETECTION 有权
    ATRIAL ARRHYTHMIA EPISODE检测方法与装置

    公开(公告)号：US20160235320A1

    公开(公告)日：2016-08-18

    申请号：US14695171

    申请日：2015-04-24

    Applicant: Medtronic, Inc.

    Inventor： Shantanu Sarkar ,  Daniel L. Hansen ,  Grant A. Neitzell

    IPC: A61B5/04 ,  A61B5/0464

    CPC classification number: A61B5/046 ,  A61B5/04 ,  A61B5/04012 ,  A61B5/04014 ,  A61B5/04017 ,  A61B5/0452 ,  A61B5/0456 ,  A61B5/0464 ,  A61B5/686 ,  A61N1/3624 ,  A61N1/36507 ,  A61N1/36592 ,  A61N1/395 ,  A61N1/3987

    Abstract: A method and implantable medical device for determining noise in response to a cardiac signal that includes sensing the cardiac signal, determining a sensing window in response to the sensed cardiac signal, the sensing window comprising a first portion and a second portion, determining a first derivative signal in response to the sensed cardiac signal within only one of the first portion and the second portion of the sensing window, determining a second derivative signal in response to the sensed cardiac signal within the one of the first portion and the second portion of the sensing window, determining whether an amplitude of the second derivative signal satisfies an amplitude threshold, and determining noise in response to the amplitude of the second derivative signal satisfying the amplitude threshold.

    Abstract translation: 一种用于响应于包括感测心脏信号的心脏信号来确定噪声的方法和可植入医疗装置，响应于感测到的心脏信号确定感测窗口，感测窗口包括第一部分和第二部分，确定一阶导数 响应于仅在感测窗口的第一部分和第二部分中的一个内的感测到的心脏信号的信号，响应于感测的第一部分和第二部分中的感测到的心脏信号来确定二阶导数信号 确定二阶微分信号的振幅是否满足幅度阈值，以及响应于满足幅度阈值的二阶导数信号的幅度来确定噪声。

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