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    • 2. 发明申请
    • AN IMPLANTABLE CARDIAC DEVICE AND METHOD FOR MONITORING THE STATUS OF A CARDIOVASCULAR DISEASE
    • 用于监测心血管疾病状态的可植入心脏装置和方法
    • WO2008118041A1
    • 2008-10-02
    • PCT/SE2007/000288
    • 2007-03-23
    • ST. JUDE MEDICAL ABHOLMSTRÖM, NilsÖHLANDER, MalinNOREN, KjellBLOMQVIST, AndreasLJUNGSTRÖM, Karin
    • HOLMSTRÖM, NilsÖHLANDER, MalinNOREN, KjellBLOMQVIST, AndreasLJUNGSTRÖM, Karin
    • A61N1/365A61N1/37
    • A61N1/36521A61B5/0215A61B5/02405A61B5/053A61B5/4035A61B5/4836A61B5/7257A61N1/36564A61N1/36578A61N1/36592A61N1/3702
    • An implantable cardiac device comprises a heart stimulator (10, 12) for electricly stimulating the heart of a patient, detecting means (2, 4) for measuring a physiologic parameter which is affected by the status of a cardiovascular disease associated with sympathetic activation, signal processing means (6) for determining at least one of a low frequency, LF, and a very low frequency, VLF, Mayer wave component in the measured parameter, and an analysor for analyzing the determined Mayer wave component in relation to a predetermined reference value to determine the status of the cardiovascular disease. The detecting means comprise measuring means (2) arranged to measure, as said physiologic parameter, a mechanical change in at least one of the four chambers of the heart. In a corresponding method for monitoring the status of a cardiovascular disease associated with sympathetic activation of a patient having an implantable electric heart stimulator (10, 12) a physiologic parameter affected by the cardiac disease is measured. At least one of a low frequency, LF, and a very low frequency, VLF, Mayer wave component in the parameter is determined, and the wave component is analysed in relation to a predetermined reference value to determine the status of the cardiovascular disease. A mechanical change in at least one of the four chambers of the heart is measured as the physiologic parameter.
    • 可植入心脏装置包括用于电刺激患者心脏的心脏刺激器(10,12),用于测量受到与交感神经激活相关的心血管疾病状态影响的生理参数的检测装置(2,4),信号 用于确定所测量的参数中的低频,低频和极低频,伏尔伏特梅耶波分量中的至少一个的处理装置(6),以及用于相对于预定参考值分析所确定的梅尔波分量的分析器 以确定心血管疾病的状况。 检测装置包括测量装置(2),其被布置成根据所述生理参数测量心脏的四个腔室中的至少一个中的机械变化。 在用于监测与具有可植入电心脏刺激器(10,12)的患者的交感神经激活相关的心血管疾病的状态的相应方法中,测量受心脏病影响的生理参数。 确定参数中的低频,低频和极低频VLF,梅耶波分量中的至少一个,并且相对于预定参考值分析波分量以确定心血管疾病的状态。 测量心脏四个腔室中的至少一个的机械变化作为生理参数。
    • 6. 发明申请
    • AN IMPLANTABLE HEART STIMULATING DEVICE, A SYSTEM INCLUDING SUCH A DEVICE AND A MANNER OF USING THE SYSTEM
    • 可植入心脏刺激装置,包括这样一个装置的系统和使用该系统的手段
    • WO2003051457A1
    • 2003-06-26
    • PCT/SE2002/001817
    • 2002-10-04
    • ST. JUDE MEDICAL ABNORÉN, KjellLJUNGSTRÖM, KarinKALLING, SvenMANDAL, LarsBJÖRLING, Anders
    • NORÉN, KjellLJUNGSTRÖM, KarinKALLING, SvenMANDAL, LarsBJÖRLING, Anders
    • A61N1/368
    • A61N1/3627A61N1/36521A61N1/3682A61N1/3684
    • The invention concerns an implantable heart stimulating device (10) comprising, inter alia, a control circuit (14) adapted to enable at least the following: a) delivering electrical stimulating pulses to the two ventricles (RV, LV) of a heart with a variable time interval (ΔT) between the pulses; b) sensing signals receivable from electrodes (31, 32; 41, 42; 51 , 52; 61, 62) positionable at two different positions in the heart, c) deriving an impedance value (Z) based on said sensed signals, d) determining a minimum value (Z min ) and a maximum value (Z max ) of said impedance value (Z) during a heart cycle, e) determining a relationship between said minimum (Z min ) and maximum (Z max )values, f) varying said time interval (ΔT) and monitoring said relationship over a plurality of heart cycles, g) setting said time interval (ΔT) such that said relationship fulfi1s a predetermined requirement. The invention also concerns a system including such a heart stimulating device (10) as well as a manner of using such a system.
    • 本发明涉及一种植入式心脏刺激装置(10),其特别地包括控制电路(14),该控制电路适于至少能够实现以下功能:a)将电刺激脉冲输送到心脏的两个心室(RV,LV) 脉冲之间的可变时间间隔(DeltaT); b)感测可定位在心脏中两个不同位置的电极(31,32; 41,42; 51,52; 61,62)的信号,c)基于所述感测信号导出阻抗值(Z),d) 在心脏周期中确定所述阻抗值(Z)的最小值(Z> min <)和最大值(Z> max <),e)确定所述最小值(Z> min <)和最大值(Z > max <)值,​​f)改变所述时间间隔(DeltaT)并监视多个心脏周期的所述关系,g)设置所述时间间隔(DeltaT)使得所述关系满足预定要求。 本发明还涉及包括这种心脏刺激装置(10)的系统以及使用这种系统的方式。
    • 9. 发明申请
    • DEVICE FOR EVALUATING POSITIONS OF AN IMPLANTABLE MEDICAL DEVICE
    • 用于评估可植入医疗装置的位置的装置
    • WO2006049538A1
    • 2006-05-11
    • PCT/SE2004/001600
    • 2004-11-02
    • ST. JUDE MEDICAL ABLJUNGSTRÖM, KarinBJÖRLING, AndersSTRANDBERG, Hans
    • LJUNGSTRÖM, KarinBJÖRLING, AndersSTRANDBERG, Hans
    • A61N1/05
    • A61N1/372A61B5/029A61B5/0452A61N1/08
    • The present invention relates to a device for evaluating positions of a medical lead during an implantation procedure, wherein the medical lead comprises at least one electrode and at least one sensor. The sensor is arranged to provide signals related to heart pumping activity. Furthermore, the device comprises measuring means arranged to record sensor signals and signals characteristic of the heart activity at different lead positions; storing means arranged to store the sensor signals; and processing means connected to the measurement means and is arranged to determine a measure of the heart activity at each lead position based on the recorded signals. Thus, physiologic parameters reflecting hemodynamic performance are derived and evaluated for each lead position in order to determine the optimal site with respect to a desired heart muscle reaction.
    • 本发明涉及一种用于在植入过程期间评估医用引线的位置的装置,其中所述医用引线包括至少一个电极和至少一个传感器。 传感器布置成提供与心脏泵送活动有关的信号。 此外,该装置包括测量装置,其被设置为在不同的引导位置记录心脏活动特征的传感器信号和信号; 存储装置,被布置成存储传感器信号; 以及连接到所述测量装置的处理装置,并且被布置成基于所记录的信号来确定每个引导位置处的心脏活动度量。 因此,针对每个引导位置导出和评估反映血液动力学性能的生理参数,以便确定相对于所需心脏肌肉反应的最佳位置。