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    HEART RATE DETERMINATION BASED ON VAD CURRENT WAVEFORM
    1.
    发明申请
    HEART RATE DETERMINATION BASED ON VAD CURRENT WAVEFORM 有权

    公开(公告)号：US20180028737A1

    公开(公告)日：2018-02-01

    申请号：US15663265

    申请日：2017-07-28

    Applicant: HeartWare, Inc.

    Inventor： Carlos REYES ,  Fernando CASAS ,  Justin WOLMAN

    IPC: A61M1/12 ,  A61B5/029 ,  A61M1/10

    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.

    BLOOD PUMP WITH IMPELLER RINSE OPERATION
    2.
    发明申请
    BLOOD PUMP WITH IMPELLER RINSE OPERATION 审中-公开

    公开(公告)号：US20190167874A1

    公开(公告)日：2019-06-06

    申请号：US16199684

    申请日：2018-11-26

    Applicant: HeartWare, Inc.

    Inventor： Mark S. EGLER ,  Fernando CASAS ,  Carlos REYES ,  Jeffrey A. LAROSE

    IPC: A61M1/10

    Abstract: A method of operating an implantable blood pump having a first stator, a second stator, and an impeller movably disposed there between. The method includes applying a first voltage waveform at first phase to the first stator to generate a magnetic field to rotate the impeller. A second voltage waveform is applied at a second phase shifted from the first phase to the second stator to rotate the impeller, the second voltage waveform is asymmetric to the first voltage waveform.

    THROMBUS DETECTION AND REMOVAL USING A FLEXIBLE ELECTRONIC SENSOR AND EMITTER
    3.
    发明申请
    THROMBUS DETECTION AND REMOVAL USING A FLEXIBLE ELECTRONIC SENSOR AND EMITTER 审中-公开

    公开(公告)号：US20190053816A1

    公开(公告)日：2019-02-21

    申请号：US16052693

    申请日：2018-08-02

    Applicant: HeartWare, Inc.

    Inventor： Fernando CASAS

    IPC: A61B17/22 ,  A61M1/10 ,  A61M1/12

    Abstract: A system for thrombus detection and removal from a blood pump including a housing having an inlet cannula including an inner tube, a rotor disposed within the housing, the rotor being in fluid communication with the inlet cannula, and a stator disposed within the housing. The stator may be configured to rotate the rotor when a current is applied to the stator. A flexible circuit assembly may also be disposed within the housing including at least one of the group consisting of a plurality of light emitters and a plurality of ultrasound emitters.

    PHYSIOLOGICALLY RESPONSIVE VAD FOR CARDIAC EVENTS
    4.
    发明申请
    PHYSIOLOGICALLY RESPONSIVE VAD FOR CARDIAC EVENTS 审中-公开

    公开(公告)号：US20180085506A1

    公开(公告)日：2018-03-29

    申请号：US15708998

    申请日：2017-09-19

    Applicant: HeartWare, Inc.

    Inventor： Barry M. YOMTOV ,  Fernando CASAS

    IPC: A61M1/10 ,  A61M1/12

    Abstract: A ventricular assist system including an implantable rotary pump, a pump drive circuit for supplying power to the pump, and a signal processing circuit receiving one or more electrophysiological signals and one or more physiological signals of the subject. The signal processing circuit is operable to receive inputs from the one or more electrophysiological sensors and the physiological sensor, and determine the presence or absence of a non-normal sinus cardiac rhythm condition based on the input from the electrophysiological sensors. In the presence of a non-normal sinus rhythm, the circuit operates the pump in a modified mode of operation. In the absence of a non-normal sinus rhythm, the circuit operates the pump in a normal mode of operation. In either case, the circuit controls the power to the pump and/or speed of the pump based on the input from the physiological sensor and the mode of operation.

    HEART RATE MEASUREMENT USING BLOOD PUMP IMPELLER LOCATION
    5.
    发明申请
    HEART RATE MEASUREMENT USING BLOOD PUMP IMPELLER LOCATION 审中-公开

    公开(公告)号：US20190184082A1

    公开(公告)日：2019-06-20

    申请号：US16221768

    申请日：2018-12-17

    Applicant: HeartWare, Inc.

    Inventor： Justin WOLMAN ,  Fernando CASAS ,  Carlos REYES

    IPC: A61M1/12 ,  A61M1/10

    CPC classification number: A61M1/12 ,  A61M1/1012 ,  A61M1/1031 ,  A61M1/1086 ,  A61M1/122 ,  A61M2205/3334

    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.

    DYNAMIC HQ FOR CLOSED LOOP CONTROL
    6.
    发明申请
    DYNAMIC HQ FOR CLOSED LOOP CONTROL 审中-公开

    公开(公告)号：US20190111194A1

    公开(公告)日：2019-04-18

    申请号：US16148312

    申请日：2018-10-01

    Applicant: HeartWare, Inc.

    Inventor： Carlos REYES ,  Fernando CASAS

    IPC: A61M1/10 ,  A61M1/12

    Abstract: A method of controlling a blood pump having a predefined hydraulic performance including at least from the group consisting of estimating and measuring an instantaneous flow rate during operation of the blood pump at a predetermined rotational speed of an impeller of the blood pump, the instantaneous flow rate including a plurality of flow rate data points. The plurality of flow rate data points define a trajectory around at least one from the group consisting of an operational point of a predefined pressure-flow curve associated with the predetermined rotational speed of the impeller of the blood pump and a target operational point of a target pressure-flow curve different than the predefined pressure-flow curve. The predetermined rotational speed of the impeller is adjusted until the plurality of flow rate data points define a predetermined trajectory around at least one of the operational point and the target operational point.

    THERAPEUTIC UV BLOOD TREATMENT IN A BLOOD PUMP
    7.
    发明申请
    THERAPEUTIC UV BLOOD TREATMENT IN A BLOOD PUMP 审中-公开

    公开(公告)号：US20190054221A1

    公开(公告)日：2019-02-21

    申请号：US16054040

    申请日：2018-08-03

    Applicant: HeartWare, Inc.

    Inventor： Fernando CASAS

    IPC: A61M1/10 ,  A61M1/12 ,  A61N5/06

    Abstract: An implantable blood pump including a housing having an inlet cannula, a rotor disposed within the housing, the rotor in fluid communication with the inlet cannula, a stator disposed within the housing, the stator configured to rotate the rotor when a current is applied to the stator, and at least one ultraviolet light emitter disposed within the housing.

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