Methods and devices for monitoring the integrity of a fluid connection
    1.
    发明授权
    Methods and devices for monitoring the integrity of a fluid connection 有权
    用于监测流体连接完整性的方法和装置

    公开(公告)号:US09442036B2

    公开(公告)日:2016-09-13

    申请号:US13001314

    申请日:2009-06-26

    摘要: A method of monitoring the integrity of a fluid connection between first and second fluid containing systems based on at least one time-dependent measurement signal from a pressure sensor in the first fluid containing system. The pressure sensor detects first pulses originating from a first pulse generator in the first fluid containing system and second pulses originating from a second pulse generator in the second fluid containing system. A parameter value representing a distribution of signal values within a time window is calculated by analyzing the measurement signal in the time domain and/or by using information on the timing of the second pulses in the measurement signal. The parameter value may be calculated as a statistical dispersion measure of the signal values, or from matching the signal to a predicted temporal signal profile of the second pulse. The integrity of the fluid connection is determined from the parameter value.

    摘要翻译: 基于来自第一流体容纳系统中的压力传感器的至少一个与时间相关的测量信号来监测第一和第二流体容纳系统之间的流体连接的完整性的方法。 压力传感器检测来自第一流体容纳系统中的第一脉冲发生器的第一脉冲和源自第二流体容纳系统中的第二脉冲发生器的第二脉冲。 通过在时域中分析测量信号和/或通过使用关于测量信号中的第二脉冲的定时的信息来计算表示时间窗内的信号值分布的参数值。 可以将参数值计算为信号值的统计色散测量值,或者将信号与第二脉冲的预测时间信号分布匹配。 根据参数值确定流体连接的完整性。

    METHODS AND DEVICES FOR MONITORING THE INTEGRITY OF A FLUID CONNECTION
    2.
    发明申请
    METHODS AND DEVICES FOR MONITORING THE INTEGRITY OF A FLUID CONNECTION 有权
    用于监测流体连接完整性的方法和装置

    公开(公告)号:US20110106466A1

    公开(公告)日:2011-05-05

    申请号:US13001314

    申请日:2009-06-26

    IPC分类号: G01M3/28 A61M1/14

    摘要: A surveillance device monitors the integrity of a fluid connection between first and second fluid containing systems based on at least one time-dependent measurement signal from a pressure sensor in the first fluid containing system. The first fluid containing system comprises a first pulse generator, and the second fluid containing system comprises a second pulse generator. The pressure sensor is arranged to detect first pulses originating from the first pulse generator and second pulses originating from the second pulse generator. The integrity of the fluid connection is determined based on the presence of second pulses in the measurement signal. The second pulses may be detected by analysing the measurement signal in the time domain and/or by using timing information indicative of the timing of the second pulses in said at least one measurement signal. The analysis may be based on a parameter value that represents a distribution of signal values within a time window of the measurement signal. The parameter value may be calculated as a statistical dispersion measure of the signal values, or may result from a matching of the signal values within the time window to a predicted temporal signal profile of a second pulse. The fluid connection may be established between a human blood system and an extracorporeal blood flow circuit.

    摘要翻译: 监视装置基于来自第一流体容纳系统中的压力传感器的至少一个与时间相关的测量信号监测第一和第二流体容纳系统之间的流体连接的完整性。 第一流体容纳系统包括第一脉冲发生器,并且第二流体容纳系统包括第二脉冲发生器。 压力传感器被布置成检测源自第一脉冲发生器的第一脉冲和来自第二脉冲发生器的第二脉冲。 基于测量信号中第二个脉冲的存在来确定流体连接的完整性。 可以通过在时域中分析测量信号和/或通过使用指示所述至少一个测量信号中的第二脉冲的定时的定时信息来检测第二脉冲。 分析可以基于表示测量信号的时间窗内的信号值分布的参数值。 参数值可以被计算为信号值的统计色散测量值,或者可以由时间窗口内的信号值与第二脉冲的预测时间信号曲线的匹配产生。 可以在人体血液系统和体外血液回路之间建立流体连接。

    CONTROLLING AN APPARATUS FOR FLUID TRANSFER TO AND/OR FROM A SUBJECT
    3.
    发明申请
    CONTROLLING AN APPARATUS FOR FLUID TRANSFER TO AND/OR FROM A SUBJECT 有权
    控制流体转移到和/或从主体的流体装置

    公开(公告)号:US20130172803A1

    公开(公告)日:2013-07-04

    申请号:US13519148

    申请日:2010-12-22

    IPC分类号: A61M1/30

    摘要: A control system (23) is arranged to control the operation of an apparatus (200) for extracorporeal blood treatment. The apparatus (200) comprises an extracorporeal blood circuit (20) and a connection system (C) for connecting the blood circuit (20) to the vascular system of a patient. The blood circuit (20) comprises a blood processing device (6), and at least one pumping device (3). The control system is operable to switch between a pre-treatment mode and a blood treatment mode. The blood treatment mode involves operating the blood circuit (20) to pump blood from the vascular system via the connection system (C) through the blood processing device (6) and back to the vascular system via the connection system (C). The control system (23) is operable to obtain measurement data from at least one energy transfer sensor (40) arranged to sense a transfer of energy between the patient and the connection system (C) or between the patient and the blood circuit (20). The control system (23) is configured to, in the pre-treatment mode, process the measurement data for identification of a characteristic change indicating a connection of the blood circuit (20) to the vascular system of the patient, and, upon such identification, take dedicated action. The action may involve activating at least part of a patient protection system and/or enabling entry into the blood treatment mode. The control system may be included in an apparatus (200) for blood treatment, such as a dialysis machine.

    摘要翻译: 控制系统(23)被布置成控制用于体外血液处理的装置(200)的操作。 装置(200)包括用于将血液回路(20)连接到患者血管系统的体外血液回路(20)和连接系统(C)。 血液回路(20)包括血液处理装置(6)和至少一个泵送装置(3)。 控制系统可操作以在预处理模式和血液处理模式之间切换。 血液处理模式包括操作血液回路(20),以经由连接系统(C)从血管系统通过血液处理装置(6)泵送血液,并通过连接系统(C)返回血管系统。 控制系统(23)可操作以从至少一个能量传递传感器(40)获得测量数据,所述能量传递传感器(40)布置成感测患者和连接系统(C)之间或患者与血液回路(20)之间的能量传递, 。 控制系统(23)被配置为在预处理模式下处理用于识别指示血液回路(20)与患者的血管系统的连接的特征变化的测量数据,并且在这种识别 ,采取专门的行动。 该动作可以涉及激活患者保护系统的至少一部分和/或使得能够进入血液处理模式。 控制系统可以包括在用于血液处理的装置(200)中,例如透析机。

    Controlling an apparatus for fluid transfer to and/or from a subject
    4.
    发明授权
    Controlling an apparatus for fluid transfer to and/or from a subject 有权
    控制用于流体转移到和/或从受试者的装置

    公开(公告)号:US09289545B2

    公开(公告)日:2016-03-22

    申请号:US13519148

    申请日:2010-12-22

    摘要: A control system (23) is arranged to control the operation of an apparatus (200) for extracorporeal blood treatment. The apparatus (200) comprises an extracorporeal blood circuit (20) and a connection system (C) for connecting the blood circuit (20) to the vascular system of a patient. The blood circuit (20) comprises a blood processing device (6), and at least one pumping device (3). The control system is operable to switch between a pre-treatment mode and a blood treatment mode. The blood treatment mode involves operating the blood circuit (20) to pump blood from the vascular system via the connection system (C) through the blood processing device (6) and back to the vascular system via the connection system (C). The control system (23) is operable to obtain measurement data from at least one energy transfer sensor (40) arranged to sense a transfer of energy between the patient and the connection system (C) or between the patient and the blood circuit (20). The control system (23) is configured to, in the pre-treatment mode, process the measurement data for identification of a characteristic change indicating a connection of the blood circuit (20) to the vascular system of the patient, and, upon such identification, take dedicated action. The action may involve activating at least part of a patient protection system and/or enabling entry into the blood treatment mode. The control system may be included in an apparatus (200) for blood treatment, such as a dialysis machine.

    摘要翻译: 控制系统(23)被布置成控制用于体外血液处理的装置(200)的操作。 装置(200)包括用于将血液回路(20)连接到患者血管系统的体外血液回路(20)和连接系统(C)。 血液回路(20)包括血液处理装置(6)和至少一个泵送装置(3)。 控制系统可操作以在预处理模式和血液处理模式之间切换。 血液处理模式包括操作血液回路(20),以经由连接系统(C)从血管系统通过血液处理装置(6)泵送血液,并通过连接系统(C)返回血管系统。 控制系统(23)可操作以从至少一个能量传递传感器(40)获得测量数据,所述能量传递传感器(40)布置成感测患者和连接系统(C)之间或患者与血液回路(20)之间的能量传递, 。 控制系统(23)被配置为在预处理模式下处理用于识别指示血液回路(20)与患者的血管系统的连接的特征变化的测量数据,并且在这种识别 ,采取专门的行动。 该动作可以涉及激活患者保护系统的至少一部分和/或使得能够进入血液处理模式。 控制系统可以包括在用于血液处理的装置(200)中,例如透析机。

    FILTERING OF A TIME-DEPENDENT PRESSURE SIGNAL
    6.
    发明申请
    FILTERING OF A TIME-DEPENDENT PRESSURE SIGNAL 有权
    时间依赖压力信号的滤波

    公开(公告)号:US20140231319A1

    公开(公告)日:2014-08-21

    申请号:US14234527

    申请日:2012-06-20

    IPC分类号: A61M1/36 G01L19/00

    摘要: A device removes first pulses in a pressure signal of a pressure sensor which is arranged in a fluid containing system to detect the first pulses, which originate from a first pulse generator, and second pulses, which originate from a second pulse generator. The first pulse generator operates in a sequence of pulse cycles, each pulse cycle resulting in at least one first pulse. The device repetitively obtains a current data sample, calculates a corresponding reference value and subtracts the reference value from the current data sample. The reference value is calculated as a function of other data sample(s) in the same pressure signal. The fluid containing system may include an extracorporeal blood flow circuit, e.g. as part of a dialysis machine, and a cardiovascular system of a human patient.

    摘要翻译: 装置去除压力传感器的压力信号中的第一脉冲,该压力传感器布置在流体容纳系统中,以检测源自第一脉冲发生器的第一脉冲和来自第二脉冲发生器的第二脉冲。 第一脉冲发生器以脉冲周期的顺序操作,每个脉冲周期产生至少一个第一脉冲。 设备重复获取当前数据样本,计算相应的参考值,并从当前数据样本中减去参考值。 参考值根据相同压力信号中其他数据采样的函数计算。 流体容纳系统可以包括体外血流回路,例如, 作为透析机的一部分,以及人类患者的心血管系统。

    Method and arrangement for detecting the condition of a blood vessel
access
    7.
    发明授权
    Method and arrangement for detecting the condition of a blood vessel access 失效
    用于检测血管通路状况的方法和装置

    公开(公告)号:US6090048A

    公开(公告)日:2000-07-18

    申请号:US29813

    申请日:1998-03-10

    摘要: Methods for detecting the condition of a catheter providing access to a patient's blood vessel are disclosed in which the blood is supplied to an extracorporeal blood flow circuit. The method includes generating a pressure wave on one side of one of the access points for supplying blood to the extracorporeal blood flow circuit or returning the blood to the patient, then sensing the pressure wave on the other side of the access points. Apparatus for detecting the condition of the catheter are also provided.

    摘要翻译: PCT No.PCT / SE96 / 01127 Sec。 371日期1998年3月10日 102(e)1998年3月10日PCT PCT 1996年9月11日PCT公布。 公开号WO97 / 10013 PCT 1997年3月20日公开了用于检测提供对患者血管通路的导管状态的方法,其中将血液供应到体外血流回路。 该方法包括在一个接入点的一侧上产生压力波,用于向体外血流回路供血或将血液返回给患者,然后检测接入点另一侧的压力波。 还提供了用于检测导管状况的装置。

    Blood treatment equipment, method, and software program for controlling infusion in blood treatment equipment
    10.
    发明申请
    Blood treatment equipment, method, and software program for controlling infusion in blood treatment equipment 有权
    用于控制血液处理设备输液的血液处理设备,方法和软件程序

    公开(公告)号:US20050251086A1

    公开(公告)日:2005-11-10

    申请号:US11121940

    申请日:2005-05-05

    申请人: Jan Sternby

    发明人: Jan Sternby

    摘要: A method and blood treatment equipment for controlling infusion are described. The equipment comprising: an extracorporeal blood circuit, a pre-infusion line connected to the blood circuit upstream a blood treatment unit, a post-infusion line connected to the blood circuit downstream the blood treatment unit, a waste line connected to an outlet of the treatment unit. A sensor operates on the waste line for sensing at least one fluid parameter and is connected to a control unit which commands a fluid flow through said pre-infusion line and through said post-infusion line. The control unit also determines from values of said fluid parameter at least a corresponding value of an efficiency parameter relating to blood depuration efficiency of the blood treatment unit, and controls the flow rate of at least one of the fluid flows through said infusion lines as a function of the value of the efficiency parameter. A software program for execution by the control unit is also claimed.

    摘要翻译: 描述了用于控制输注的方法和血液处理设备。 所述设备包括:体外血液回路,连接到血液处理单元上游的血液回路的输注前线路,连接到血液处理单元下游的血液回路的输注后线路,连接到血液处理单元的出口的废液管线 治疗单位。 传感器在废物管线上操作以感测至少一个流体参数,并且连接到控制单元,该控制单元命令流体流过所述预灌注管线并通过所述后输注管线。 控制单元还根据所述流体参数的值至少确定与血液处理单元的血液净化效率有关的效率参数的对应值,并且控制通过所述输注管线的至少一个流体流的流量为 效率参数值的函数。 还要求用于由控制单元执行的软件程序。