INSTRUMENTED DRIVELINE USING A FLEXIBLE ARTIFICIAL SKIN SENSORY ARRAY

    公开(公告)号:WO2019067230A1

    公开(公告)日:2019-04-04

    申请号:PCT/US2018/051013

    申请日:2018-09-14

    Inventor: CASAS, Fernando

    Abstract: A driveline for an implantable blood pump including a percutaneous connector including an outer tube, the outer tube defining an exterior surface and having a proximal portion and a distal portion opposite the proximal portion, the proximal portion being couplable to the implantable blood pump disposed within a body of a patient and the distal portion being couplable to a controller outside of the body of the patient and at least one electronic instrument coupled to the outer tube and fluidically sealed from the exterior surface of the outer tube.

    HEART RATE DETERMINATION BASED ON VAD CURRENT WAVEFORM
    3.
    发明申请
    HEART RATE DETERMINATION BASED ON VAD CURRENT WAVEFORM 审中-公开
    基于VAD电流波形的心率测定

    公开(公告)号:WO2018026655A2

    公开(公告)日:2018-02-08

    申请号:PCT/US2017/044459

    申请日:2017-07-28

    Abstract: The present disclosure provides for methods and systems for determining heart rate of a patient. Based on motor current signals of a ventricular assist device (VAD), each of first, second and third events in the measured current signal may be detected, the first event being indicative of a rise or fall in the current signal, the second event being indicative of a rise or fall in the current signal in the opposite direction as the first event, and the third event being indicative of a rise or fall in the current signal in the same direction as the first event. A timer counter may be initiated upon detection of the first event, and an elapsed time may be measured upon detection of the third event. Heart rate may be determined based on the elapsed time of the timer counter.

    Abstract translation: 本公开提供了用于确定患者的心率的方法和系统。 基于心室辅助装置(VAD)的电机电流信号,可以检测测量的电流信号中的第一事件,第二事件和第三事件中的每一个事件,第一事件指示电流信号的上升或下降,第二事件是 指示电流信号在与第一事件相反的方向上的上升或下降,并且第三事件指示电流信号在与第一事件相同的方向上的上升或下降。 定时器计数器可以在检测到第一事件时启动,并且可以在检测到第三事件时测量流逝的时间。 心率可以基于计时器计数器的经过时间来确定。

    MULTI-INPUT SPEED RESPONSE ALGORITHM FOR A BLOOD PUMP

    公开(公告)号:WO2019194976A1

    公开(公告)日:2019-10-10

    申请号:PCT/US2019/023181

    申请日:2019-03-20

    Abstract: A method of responding to an adverse event associated with an implantable blood pump including detecting the adverse event, reducing a pump speed of the blood pump relative to a set pump speed in response to the detected adverse event, and determining whether at least one of a group consisting of the adverse event and a second adverse event is present following the reducing of the pump speed of the blood pump. If the at least one of the group consisting of the adverse event and a second adverse event is not present, the method includes increasing the pump speed to the set pump speed and if the at least one of the group consisting of the adverse event and a second adverse event is present while increasing the pump speed to the set pump speed, the method includes reducing the pump speed to a maximum safe operating speed.

    HEART RATE MEASUREMENT USING BLOOD PUMP IMPELLER LOCATION

    公开(公告)号:WO2019125999A1

    公开(公告)日:2019-06-27

    申请号:PCT/US2018/065936

    申请日:2018-12-17

    Abstract: A method of determining a heart rate of a patient having an implanted blood pump including applying a voltage to a plurality of coils of a stator of the blood pump to produce an electromagnetic force to rotate a rotor in communication with the plurality of coils; displaying a waveform associated with a back electromotive force in the plurality of coils of the blood pump, the waveform being proportional to an axial position of the rotor relative to the stator; determining a time interval between a first alteration in the waveform relative to a baseline and a second alteration in the waveform relative to the baseline; and determining the heart rate of the patient based on the time interval.

    HEART RATE DETERMINATION BASED ON VAD CURRENT WAVEFORM

    公开(公告)号:WO2018026655A3

    公开(公告)日:2018-02-08

    申请号:PCT/US2017/044459

    申请日:2017-07-28

    Abstract: The present disclosure provides for methods and systems for determining heart rate of a patient. Based on motor current signals of a ventricular assist device (VAD), each of first, second and third events in the measured current signal may be detected, the first event being indicative of a rise or fall in the current signal, the second event being indicative of a rise or fall in the current signal in the opposite direction as the first event, and the third event being indicative of a rise or fall in the current signal in the same direction as the first event. A timer counter may be initiated upon detection of the first event, and an elapsed time may be measured upon detection of the third event. Heart rate may be determined based on the elapsed time of the timer counter.

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