IMPLANTABLE HEART STIMULATING DEVICE, SYSTEM AND METHOD
    1.
    发明申请
    IMPLANTABLE HEART STIMULATING DEVICE, SYSTEM AND METHOD 有权
    可植入心脏刺激装置,系统和方法

    公开(公告)号:US20090149908A1

    公开(公告)日:2009-06-11

    申请号:US12090157

    申请日:2005-10-31

    IPC分类号: A61N1/37 A61N1/368

    摘要: In an implantable biventricular heart stimulating device, and a biventricular heart stimulating method, wherein operation takes place normally with a time VV between a pacing pulse delivered, or inhibited, by a first ventricular pacing circuit and a pacing pulse delivered, or inhibited, by a second ventricular pacing circuit, and wherein a time VVcts is determined that is to be used instead of VV during a capture threshold search.

    摘要翻译: 在可植入的双心室心脏刺激装置和双心室心脏刺激方法中,其中手术通常由第一心室起搏电路递送或抑制的起搏脉冲与通过一个或多个第一心室起搏电路递送或抑制的起搏脉冲之间的时间VV进行 第二心室起搏电路,并且其中在捕获阈值搜索期间确定要用于代替VV的时间VVcts。

    ARRHYTHMIA CLASSIFICATION
    5.
    发明申请
    ARRHYTHMIA CLASSIFICATION 有权
    ARRHYTHMIA分类

    公开(公告)号:US20110245701A1

    公开(公告)日:2011-10-06

    申请号:US13076627

    申请日:2011-03-31

    IPC分类号: A61B5/0456 A61N1/39

    摘要: An implantable medical device, is designed to collect a signal representative of the electric activity of the heart and determine a cardiogenic impedance signal for at least a portion of the heart. An R-wave detector of the IMD detects the timing of an R-wave during a cardiac cycle based on the signal representative of the electric activity. A minimum detector detects the timing of a cardiogenic impedance minimum in the cardiogenic impedance signal and within a systolic time window of the cardiac cycle. A detected arrhythmia is then classified by the IMD based on the timing of the R-wave detected by the R-wave detector and the timing of the cardiogenic impedance minimum detected by the minimum detector.

    摘要翻译: 可植入医疗装置被设计成收集表示心脏的电活动的信号,并确定至少一部分心脏的心源性阻抗信号。 基于代表电活动的信号,IMD的R波检测器在心动周期中检测R波的定时。 最小检测器检测心源性阻抗信号中心源性阻抗最小值的定时,并在心动周期的收缩时间窗内检测。 然后,基于由R波检测器检测到的R波的定时和由最小检测器检测的心源阻抗最小值的定时,通过IMD对检测到的心律失常进行分类。

    Devices and method for determining and monitoring a cardiac status of a patient by using PLVDT or PLVST parameters
    7.
    发明授权
    Devices and method for determining and monitoring a cardiac status of a patient by using PLVDT or PLVST parameters 有权
    通过使用PLVDT或PLVST参数来确定和监测患者的心脏状态的装置和方法

    公开(公告)号:US08998820B2

    公开(公告)日:2015-04-07

    申请号:US13392395

    申请日:2009-08-27

    摘要: The present invention relates to an improved medical device and method for accurately and reliably determining a cardiac status of a patient. An implantable medical device, IMD, comprises a sensor arrangement adapted to sense signals related to mechanical activity of the heart and an activity level sensor arrangement adapted to sense an activity level of the patient. Further, the IMD calculates a percentage of left ventricular diastolic time (PLVDT) for a cardiac cycle corresponding to a relation between a diastolic time interval and a cardiac cycle time interval using the determined systolic and diastolic time intervals or a percentage of left ventricular systolic time (PLVST) for a cardiac cycle corresponding to a relation between a systolic interval time interval and a cardiac cycle time interval. A cardiac status is determined based on the calculated PLVDT (or PLVST) and on an activity level of the patient.

    摘要翻译: 本发明涉及用于准确且可靠地确定患者的心脏状态的改进的医疗装置和方法。 可植入医疗装置IMD包括适于感测与心脏的机械活动相关的信号的传感器装置和适于感测患者的活动水平的活动度传感器装置。 此外,IMD使用确定的收缩期和舒张时间间隔或左心室收缩期的百分比来计算对应于舒张时间间隔和心动周期时间间隔之间的关系的心脏周期的左心室舒张时间(PLVDT)的百分比 (PLVST),其对应于收缩期间隔时间间隔和心搏周期时间间隔之间的关系。 基于计算的PLVDT(或PLVST)和患者的活动水平来确定心脏状态。

    HEMODYNAMIC STATUS ASSESSMENT
    8.
    发明申请
    HEMODYNAMIC STATUS ASSESSMENT 有权
    动态状态评估

    公开(公告)号:US20130325359A1

    公开(公告)日:2013-12-05

    申请号:US14000844

    申请日:2011-03-18

    IPC分类号: G06F19/00

    摘要: A patient-specific hemodyanmic status model is determined from impedance data collected during periods of normal and abnormal hemodynamic status by deriving parameter values of a set of multiple impedance-derivable parameters from impedance signals collected during periods of normal hemodynamic status and in connection with periods of abnormal hemodynamic status. The parameter values are employed to estimate coefficients of a linear parametric status model. These coefficients can then be used together with parameter values determined from impedance signals determined during status assessment periods in order to determine a current hemdoynamic status of the patient.

    摘要翻译: 通过从正常血液动力学状态期间收集的阻抗信号中导出一组多个阻抗可导出参数的参数值,并与正常血液动力学状态期间相关联的时期,从正常和异常血液动力学状态期间收集的阻抗数据确定患者特异性血液动力学状态模型 异常血液动力学状态。 参数值用于估计线性参数状态模型的系数。 然后可以将这些系数与在状态评估周期期间确定的阻抗信号确定的参数值一起使用,以便确定患者的当前血液动力学状态。

    DEVICES AND METHOD FOR DETERMINING AND MONITORING A CARDIAC STATUS OF A PATIENT BY USING PLVDT OR PLVST PARAMETERS
    9.
    发明申请
    DEVICES AND METHOD FOR DETERMINING AND MONITORING A CARDIAC STATUS OF A PATIENT BY USING PLVDT OR PLVST PARAMETERS 有权
    使用PLVDT或PLVST参数确定和监测患者的心脏状态的装置和方法

    公开(公告)号:US20120157861A1

    公开(公告)日:2012-06-21

    申请号:US13392395

    申请日:2009-08-27

    摘要: The present invention relates to an improved medical device and method for accurately and reliably determining a cardiac status of a patient. An implantable medical device, IMD, comprises a sensor arrangement adapted to sense signals related to mechanical activity of the heart and an activity level sensor arrangement adapted to sense an activity level of the patient. Further, the IMD calculates a percentage of left ventricular diastolic time (PLVDT) for a cardiac cycle corresponding to a relation between a diastolic time interval and a cardiac cycle time interval using the determined systolic and diastolic time intervals or a percentage of left ventricular systolic time (PLVST) for a cardiac cycle corresponding to a relation between a systolic interval time interval and a cardiac cycle time interval. A cardiac status is determined based on the calculated PLVDT (or PLVST) and on an activity level of the patient.

    摘要翻译: 本发明涉及用于准确且可靠地确定患者的心脏状态的改进的医疗装置和方法。 可植入医疗装置IMD包括适于感测与心脏的机械活动相关的信号的传感器装置和适于感测患者的活动水平的活动度传感器装置。 此外,IMD使用确定的收缩期和舒张时间间隔或左心室收缩期的百分比来计算对应于舒张时间间隔和心动周期时间间隔之间的关系的心脏周期的左心室舒张时间(PLVDT)的百分比 (PLVST),其对应于收缩期间隔时间间隔和心搏周期时间间隔之间的关系。 基于计算的PLVDT(或PLVST)和患者的活动水平来确定心脏状态。

    Biventricular Heart Stimulator and Method of Controlling a Biventricular Heart Stimulator
    10.
    发明申请
    Biventricular Heart Stimulator and Method of Controlling a Biventricular Heart Stimulator 有权
    双心室心脏刺激器和控制双心室心脏刺激器的方法

    公开(公告)号:US20090076560A1

    公开(公告)日:2009-03-19

    申请号:US11885326

    申请日:2005-03-02

    IPC分类号: A61N1/37

    摘要: In a biventricular heart stimulator and a method for controlling such a biventricular heart stimulator, successive stimulation pulses are delivered to the ventricles of a heart such that stimulation pulses in a single heartbeat cycle are respectively first delivered to the first ventricle and then to the second ventricle. Capture or loss of capture in response to stimulation pulses delivered to one ventricle is detected. As a result of a detected loss of capture, preventative measures are taken for preventing loss of capture in the other ventricle.

    摘要翻译: 在双心室心脏刺激器和用于控制这种双心室心脏刺激器的方法中,连续的刺激脉冲被递送到心脏的心室,使得单个心跳周期中的刺激脉冲分别首先被传送到第一脑室,然后被传送到第二脑室 。 检测到响应于输送到一个脑室的刺激脉冲的捕获或丢失。 由于检测到的捕获损失,采取预防措施来防止在另一脑室中的捕获损失。