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    • 1. 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。
    • 5. 发明申请
    • IMPLANTABLE HEART STIMULATING DEVICE WITH STIMULATION RATE OPTIMIZATION
    • 具有刺激率优化的可植入心脏刺激装置
    • WO2007149019A1
    • 2007-12-27
    • PCT/SE2006/000757
    • 2006-06-21
    • ST. JUDE MEDICAL ABNORÉN, KjellNILSSON, Kenth
    • NORÉN, KjellNILSSON, Kenth
    • A61N1/365
    • A61N1/36585A61N1/36521A61N1/36564A61N1/36578
    • Implantable heart stimulating device adapted to generate stimulation pulses at a stimulation rate to be applied to a patients heart, comprising an activity sensor (2), generating an activity signal (4) in response of detected activity of the patient, and a physiological parameter sensor (6), preferably a pressure sensor, generating a physiological sensor signal (8) in response of a detected physiological parameter. The activity and physiological sensor signals are applied to a control means (10, 12, 14) adapted to determine a stimulation rate based upon an stimulation rate algorithm in dependence of those signals, such that if the physiological signal indicates an emotional stress for the patient, the stimulation rate is increased to an adjustable emotional stress rate level and if no increase of the activity signal is indicated, during a predetermined time period from the stimulation rate increase, the stimulation rate is decreased.
    • 植入式心脏刺激装置,其适于以刺激速率产生刺激速率以施加到患者心脏,包括活动传感器(2),响应于检测到的患者的活动而产生活动信号(4)和生理参数传感器 (6),优选地是压力传感器,响应检测到的生理参数产生生理传感器信号(8)。 活动和生理传感器信号被施加到适于根据这些信号基于刺激速率算法确定刺激速率的控制装置(10,12,14),使得如果生理信号指示患者的情绪压力 刺激率增加到可调情绪应激速率水平,并且如果没有指示活动信号的增加,则在从刺激速率增加的预定时间段期间,刺激速率降低。
    • 6. 发明申请
    • MEDICAL DEVICE
    • 医疗装置
    • WO2003071945A1
    • 2003-09-04
    • PCT/SE2003/000338
    • 2003-02-27
    • ST. JUDE MEDICAL ABNORÉN, Kjell
    • NORÉN, Kjell
    • A61B5/0452
    • A61N1/3622A61B5/0452A61B5/046A61B5/0464A61B5/7257
    • Implantable heart condition determining device comprising detecting means (2) arranged to detect a heart related signal (4) and to generate a corresponding input signal (6) in dependence of the heart related signal. The input signal is applied to an analytic signal block (8) that provides an analytic signal based upon the input signal, the analytic signal comprises a real part essentially being the input signal and an imaginary part being a predefined transformation of the input signal. The analytic signal is applied to a calculation unit (12) that calculates at least one heart related parameter from the analytic signal, said heart related parameter(s) is then applied to a processing unit (16) in order to identify heart conditions.
    • 可植入心脏病状确定装置,包括检测装置(2),用于检测心脏相关信号(4)并根据心脏相关信号产生对应的输入信号(6)。 输入信号被施加到基于输入信号提供分析信号的分析信号块(8),分析信号包括基本上是输入信号的实部,以及作为输入信号的预定变换的虚部。 分析信号被应用于从分析信号计算至少一个心脏相关参数的计算单元(12),然后将所述心脏相关参数应用于处理单元(16),以便识别心脏状况。
    • 7. 发明申请
    • A DUAL CHAMBER PACING SYSTEM WITH A MODE SWITCH
    • 具有模式开关的双室开关系统
    • WO2003061760A1
    • 2003-07-31
    • PCT/SE2002/001722
    • 2002-09-23
    • ST. JUDE MEDICAL ABNORÉN, Kjell
    • NORÉN, Kjell
    • A61N1/368
    • A61N1/3622A61N1/3688
    • A dual chamber pacing system normally operating in an atrial synchronized mode comprises a mode switch means (10) adapted to switch the pacing mode to a non-atrial synchronized ventricular stimulating mode in response to the detection of an atrial tachyarrhythmia and switch the pacing mode back to the atrial synchronized mode in response to or after a preset time of detection of ceased atrial tachyarrhythmia. A mode switch supervising means (2, 4) comprises 10 a counter means for accumulating the amount of modes switches from a starting point and supplying said accumulated amount to a comparison means (6) for comparing it with a predetermined mode switch amount threshold (8). The super-vising means is adapted to control the mode switch (10) to lock the pacing mode to the non-atrial synchronized ventricle stimulating mode for at least predeter mined time period in response to the mode switch amount exceeding the amount threshold.
    • 通常以心房同步模式操作的双室起搏系统包括适于将起搏模式切换到非心房同步心室刺激模式的模式切换装置(10),以响应于心房快速性心律失常的检测并且将起搏模式切换回 响应于预先设定的停止的心房快速性心律失常的时间之后或之后的心房同步模式。 模式开关监控装置(2,4)包括10个计数器装置,用于从开始点累积模式切换量并将所述累积量提供给比较装置(6),用于将其与预定模式切换量阈值(8 )。 响应于模式切换量超过量阈值,超维护装置适于控制模式切换(10)至少预定开启时间周期将起搏模式锁定到非心房同步心室刺激模式。
    • 9. 发明申请
    • DETECTION OF ISCHEMIA
    • 检测ISCHEMIA
    • WO2006041337A1
    • 2006-04-20
    • PCT/SE2004/001444
    • 2004-10-11
    • ST JUDE MEDICALBJÖRLING, AndersNORÉN, Kjell
    • BJÖRLING, AndersNORÉN, Kjell
    • A61B5/0205
    • A61B5/029A61B5/02028A61B5/053A61B5/0538A61N1/36521A61N1/36557A61N1/3684
    • An ischemia detector comprises a workload sensor for sensing the workload of a patient, an ejection fraction, EF, determining means (2,4,6,8,10,12), a storing means for storing a predetermined reference relation between EF and workload for the patient, and an analysing means for detecting a state of ischemia of the patient from deviations in determined EF for various workloads from said stored reference relation. A heart stimulator comprises such a detector and stimulation controlling means for controlling the delivery of stimulation pulses to a patient´s heart in response to the detection of an ischemia. In a method of detecting ischemia of a patient a parameter indicative of ejection fraction, EF, and a variable indicative of the workload of the patient are measured, and a state of ischemia of the patient is detected from deviations in EF for various workloads from a predetermined reference relation between EF and workload for the patient in question.
    • 缺血检测器包括用于感测患者的工作量的工作负载传感器,射血分数EF,确定装置(2,4,6,8,10,12),用于存储EF和工作负载之间的预定参考关系的存储装置 以及分析装置,用于根据来自所存储的参考关系的各种工作负荷的确定的EF中的偏差来检测患者的局部缺血状态。 心脏刺激器包括这样的检测器和刺激控制装置,用于响应于缺血的检测而控制向患者的心脏递送刺激脉冲。 在检测患者局部缺血的方法中,测量指示射血分数EF和指示患者工作量的变量的参数,并且从各种工作负荷的EF偏差中检测患者局部缺血状态 EF与所讨论患者的工作负荷之间的预设参考关系。