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公开(公告)号：US20190015040A1
公开(公告)日：2019-01-17
申请号：US16026760
申请日：2018-07-03
申请人： HeartWare, Inc.
发明人： Neil VOSKOBOYNIKOV , Veronica RAMOS
摘要： A method determining adverse events from operation of an implantable blood pump including calculating a moving average convergence divergence (MACD) based on power consumed by the implantable blood pump to maintain a constant rotational speed of an impeller of the implantable blood pump. An alert is generated when the calculated MACD diverges from a predetermined MACD threshold and a predetermined MACD zero-crossing time threshold.
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公开(公告)号：US20200147286A1
公开(公告)日：2020-05-14
申请号：US16739234
申请日：2020-01-10
申请人： HeartWare, Inc.
摘要： A method of detecting a disruption in a diurnal rhythm of a patient having an implantable blood pump comprising calculating a moving average convergence divergence (MACD) based on power consumed by the implantable blood pump to maintain a constant rotational speed of an impeller of the implantable blood pump and generating an alert when the calculated MACD does not cross a MACD zero line for a predetermined MACD zero line crossing time threshold.
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公开(公告)号：US20190237175A1
公开(公告)日：2019-08-01
申请号：US16263872
申请日：2019-01-31
申请人： HeartWare, Inc.
CPC分类号： G16H15/00 , A61M1/1086 , A61M1/122 , A61M2205/3584 , G16H80/00
摘要： A method of filtering log file data from a log file of an implantable blood pump, the method including receiving the log file from a controller coupled to the implantable blood pump, automatically filtering the log file to differentiate an urgent data file from a routine data file, and generating an urgent report displaying the urgent data file and a routine report displaying the routine data file within a rapid time period.
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公开(公告)号：US20180099077A1
公开(公告)日：2018-04-12
申请号：US15834487
申请日：2017-12-07
申请人： HeartWare, Inc.
发明人： Dan TAMEZ , Neil VOSKOBOYNIKOV
摘要： A blood pump with an integrated flow sensor is provided. The blood pump may include an implantable pump for pumping blood having a housing, a flow path extending within the housing and at least one movable element within the housing for impelling blood along the flow path and a sensor for measuring the flow rate of blood through the pump. According to one embodiment, the sensor may be mounted to the housing of the pump. In accordance with a further embodiment, the housing may have an exterior surface defining a cavity, and the sensor may be located within the cavity.
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公开(公告)号：US20170224895A1
公开(公告)日：2017-08-10
申请号：US15424057
申请日：2017-02-03
申请人： HeartWare, Inc.
IPC分类号： A61M1/12
CPC分类号： A61M1/122 , A61M1/101 , A61M1/1086
摘要： A method of estimating an amount of work available to be performed by a blood pump implanted in a patient includes calculating a first coordinate value characterizing a volume of blood impelled in the pump and a second coordinate value characterizing a differential pressure across the pump for each of a plurality of flow rate data points of a given cardiac cycle of the patient, each flow rate data point indicative of a flow rate of blood through the pump. An area enclosed by the first and second coordinate values of the plurality of flow rate data points is determined, the determined area being indicative of an amount of work available to be performed by the blood pump.
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公开(公告)号：US20210052219A1
公开(公告)日：2021-02-25
申请号：US17089924
申请日：2020-11-05
申请人： HeartWare, Inc.
发明人： Neil VOSKOBOYNIKOV , Veronica RAMOS
摘要： A method determining adverse events from operation of an implantable blood pump including calculating a moving average convergence divergence (MACD) based on power consumed by the implantable blood pump to maintain a constant rotational speed of an impeller of the implantable blood pump. An alert is generated when the calculated MACD diverges from a predetermined MACD threshold and a predetermined MACD zero-crossing time threshold.
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公开(公告)号：US20190091391A1
公开(公告)日：2019-03-28
申请号：US16202903
申请日：2018-11-28
申请人： HeartWare, Inc.
IPC分类号： A61M1/12
CPC分类号： A61M1/122 , A61M1/101 , A61M1/1086
摘要： A method of estimating an amount of work available to be performed by a blood pump implanted in a patient includes calculating a first coordinate value characterizing a volume of blood impelled in the pump and a second coordinate value characterizing a differential pressure across the pump for each of a plurality of flow rate data points of a given cardiac cycle of the patient, each flow rate data point indicative of a flow rate of blood through the pump. An area enclosed by the first and second coordinate values of the plurality of flow rate data points is determined, the determined area being indicative of an amount of work available to be performed by the blood pump.
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公开(公告)号：US20190015571A1
公开(公告)日：2019-01-17
申请号：US15648735
申请日：2017-07-13
申请人： HeartWare, Inc.
CPC分类号： A61M1/122 , A61M1/101 , A61M1/1086 , A61M2205/3327
摘要： A method of detecting a disruption in a diurnal rhythm of a patient having an implantable blood pump comprising calculating a moving average convergence divergence (MACD) based on power consumed by the implantable blood pump to maintain a constant rotational speed of an impeller of the implantable blood pump and generating an alert when the calculated MACD does not cross a MACD zero line for a predetermined MACD zero line crossing time threshold.
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公开(公告)号：US20180028738A1
公开(公告)日：2018-02-01
申请号：US15665718
申请日：2017-08-01
申请人： HeartWare, Inc.
CPC分类号： A61M1/122 , A61M1/1029 , A61M1/1086 , A61M2205/3334 , A61M2205/3365
摘要： A method of detecting a suction condition during operation of a rotary blood pump with an inlet connected to a ventricle of the heart of a patient, an outlet connected to an artery of the patient, a rotor, and a control circuit configured maintain the rotor at a set rotational speed. The method includes measuring the rotational speed of the rotor at a plurality of times during each of a plurality of speed measurement intervals. A speed range is determined between a minimum measured speed and a maximum measured speed during each of the plurality of speed measurement intervals. At least one additional parameter relating to the operation of the blood pump is derived. A suction detection signal is generated if both at least one determined speed range is above a speed range limit and the at least one additional parameter is indicative of a suction condition.
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公开(公告)号：US20180015213A1
公开(公告)日：2018-01-18
申请号：US15717105
申请日：2017-09-27
申请人： HeartWare, Inc.
CPC分类号： A61M1/1086 , A61M1/101 , A61M1/1029 , A61M1/122 , A61M2205/3334 , A61M2205/3365 , A61M2205/52
摘要： The present disclosure provides for a method, control device, and implantable system, for acquiring a plurality of flow rate data points over time, each data point indicative of a flow rate of blood through the pump, calculating, based on the plurality of acquired flow rate data points, a value characterizing one or more features of a waveform formed from the plurality of flow rate data points; and determining, based on the value, the presence or absence of a suction condition in the pump.
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