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    • 12. 发明授权
    • Atrial tachycardia-detecting heart stimulator comparing a plurality of
P-P intervals with a threshold
    • 房性心动过速检测心脏刺激器将多个P-P间隔与阈值进行比较
    • US5683428A
    • 1997-11-04
    • US571190
    • 1995-12-12
    • Per FranbergAnders LindgrenHans Strandberg
    • Per FranbergAnders LindgrenHans Strandberg
    • A61B5/0402A61B5/0452A61N1/362A61N1/365A61N1/368
    • A61N1/3622A61N1/3682
    • A heart stimulator for detecting atrial tachycardia, contains a control device to which are connected an atrial detector, having a blanking period, for detecting atrial events, a ventricular stimulation unit for delivering stimulation pulses in the ventricle, a counter for generating a variable PV interval between a detected atrial event and a stimulation pulse delivered in the ventricle, a time measurement unit for measuring time between two consecutive, detected atrial events and a calculation unit which, in a test mode for determining of whether atrial tachycardia is present, is arranged to cause the counter to generate a PV interval so the PV interval plus the atrial detector's blanking period is equal to half or less than half of an adjustable threshold level PP tachycardia. The time measurement unit sends a detection signal to the control device when a defined number of measured, consecutive PP intervals is less than a defined threshold value PP for the PP interval (threshold value PP tachycardia).
    • 用于检测房性心动过速的心脏刺激器包含控制装置,其连接有心房检测器,具有用于检测心房事件的消隐期,用于在心室中传送刺激脉冲的心室刺激单元,用于产生可变PV间隔的计数器 在检测到的心房事件和在心室中传送的刺激脉冲之间的时间测量单元,用于测量两个连续的检测到的心房事件之间的时间的时间测量单元和在用于确定是否存在心房性心动过速的测试模式中的计算单元被布置为 导致计数器产生PV间隔,因此PV间隔加上心房检测器的消隐周期等于可调节阈值水平PP心动过速的一半或者更少的一半。 当定义数量的测量的连续PP间隔小于PP间隔(阈值PP心动过速)的定义阈值PP时,时间测量单元向控制装置发送检测信号。
    • 14. 发明授权
    • Implantable medical electrode system having an indifferent electrode
formed as a part of the electrode insulator sleeve
    • 具有形成为电极绝缘体套筒的一部分的无差异电极的植入式医用电极系统
    • US5476496A
    • 1995-12-19
    • US241397
    • 1994-05-11
    • Hans StrandbergJakub Hirschberg
    • Hans StrandbergJakub Hirschberg
    • A61N1/05
    • A61N1/056
    • An implantable electrode system includes a connector for connecting a proximal end of the electrode to an implantable medical apparatus, such as for stimulating living tissue, and a distal end at which a tip electrode is located. The proximal end and the distal end are connected by a conductor which electrically connects the medical apparatus to the electrode tip, and which is surrounded by a flexible insulating sleeve. In order to provide an indifferent electrode having a large surface area relative to the size of the tip electrode, the insulating sleeve is provided with a section formed by an electrically conductive, flexible material, which serves as the indifferent electrode. The flexibility of the electrode system is retained, while providing an indifferent electrode of optional size.
    • 可植入电极系统包括用于将电极的近端连接到可植入医疗装置的连接器,例如用于刺激生物体组织和尖端电极所在的远端。 近端和远端通过将医疗设备电连接到电极尖端并由柔性绝缘套管包围的导体连接。 为了提供相对于尖端电极的尺寸具有大的表面积的无关电极,绝缘套管设置有由用作无差异电极的导电柔性材料形成的部分。 保持电极系统的灵活性,同时提供任选尺寸的无关电极。
    • 15. 发明授权
    • Protective arrangement for an implantable defibrillator
    • 可植入除颤器的保护装置
    • US5314452A
    • 1994-05-24
    • US946599
    • 1992-09-18
    • Jakub HirschbergHans Strandberg
    • Jakub HirschbergHans Strandberg
    • A61N1/37A61N1/39A61N1/08
    • A61N1/3931A61N1/37A61N1/3718Y10S128/908
    • In order to prevent a person handling a defibrillator during manufacture and in conjunction with implantation of the defibrillator from receiving an electrical shock due to a fault, a protective arrangement is provided for the defibrillator. This protective arrangement is in the form of a plug part detachably connectable to the defibrillator housing and having terminal pins engaging into the connecting sockets of the defibrillator which is present for receiving the electrode leads. The terminal pins produce an electrically conductive connection in the sockets and are directly connected to one another inside the plug part via an electrical resistor. In case of a fault, the high-voltage energy generated between the connecting sockets is harmlessly absorbed in the resistor.
    • 为了防止在制造过程中处理除颤器的人员以及除颤器的植入不会因故障而引起的电击,为除颤器提供保护装置。 该保护装置是可拆卸地连接到去纤颤器壳体并且具有接合到用于接收电极引线的除颤器的连接插座中的端子销的插头部件的形式。 端子引脚在插座中产生导电连接,并通过电阻器直接连接在插头部分内部。 在发生故障的情况下,连接插座之间产生的高电压能量在电阻器中无害化吸收。
    • 17. 发明授权
    • Heart stimulation device
    • 心脏刺激装置
    • US6134472A
    • 2000-10-17
    • US269347
    • 1999-11-26
    • Hans StrandbergJohan LidmanKjell Noren
    • Hans StrandbergJohan LidmanKjell Noren
    • A61N1/362A61N1/365
    • A61N1/36521A61N1/3627
    • In the determination of an optimal rate for the delivery of stimulation pulses to a heart, the stroke volume (SV) of a heart ventricle is measured as a function of heart rate (HR), e.g. by determination of impedance in individual heart cycles whose duration is varied from the duration corresponding to the prevailing rate or the basic rate regarded as optimal for stimulation. The optimal rate should lie at the knee of this function. A corresponding knee is also found in the curve for cardiac output (CO). This rate is determined by calculation of an auxiliary function, e.g. HF=HR.times.CO, which displays a peak at the heart rate at which the knee is located, and the heart rate is determined which yields this maximum. The heart rate determined in this manner is subsequently employed as a basic rate.
    • PCT No.PCT / SE97 / 01590 Sec。 371日期1999年11月26日 102(e)1999年11月26日PCT PCT 1997年9月22日PCT公布。 公开号WO98 / 14240 日期1998年4月9日在确定将心脏刺激脉冲递送到最佳速率时,测量心室的搏动体积(SV)作为心率(HR)的函数,例如心率。 通过确定其持续时间从对应于当前速率或被认为是刺激最佳的基本速率的持续时间变化的各个心脏周期中的阻抗的确定。 最佳速率应该在这个功能的膝盖上。 在心输出量(CO)曲线中也发现了相应的膝盖。 该速率通过辅助功能的计算来确定,例如, HF = HRxCO,其以膝盖所处的心率显示峰值,并且确定产生该最大值的心率。 以这种方式确定的心率随后用作基本速率。
    • 19. 发明授权
    • Method and device for monitoring electrodes of electrical heart
stimulators
    • 电心电刺激器电极监测方法及装置
    • US5423871A
    • 1995-06-13
    • US178837
    • 1994-01-07
    • Kurt HoegnelidHans Strandberg
    • Kurt HoegnelidHans Strandberg
    • A61N1/08A61N1/37
    • A61N1/3706A61N2001/083
    • In a method for continuous, electrical monitoring of the electrodes of an electrical heart stimulator, having at least one stimulation electrode and an indifferent electrode, the inter-electrode voltage is kept constant by regulation of a very low compensating current, and the magnitude of this current is measured and monitored. A device for such electrode monitoring includes control electronics and an output stage for delivery to the stimulation electrode of stimulation pulses. The output stage is devised to supply the electrodes with a weak, continuous current, or a repeated, pulsed current, producing a net direct current, in addition to stimulation pulses. A monitoring unit senses the inter-electrode voltage and, on the basis thereof, deliver an output signal to the control electronics for the purpose of controlling the weak current so the inter-electrode voltage is kept constant at a given value. This output signal is monitored, with significant deviations thereof, or an inability to maintain the inter-electrode voltage constant indicating the presence of a fault in the electrode system.
    • 在具有至少一个刺激电极和无关电极的电心脏刺激器的电极的连续,电监测的方法中,电极间电压通过调节非常低的补偿电流而保持恒定,并且这个 测量和监测电流。 用于这种电极监测的装置包括控制电子装置和用于传送到刺激电极的刺激脉冲的输出级。 输出级被设计为向电极提供弱的,连续的电流或重复的脉冲电流,产生除了刺激脉冲之外的净直流电流。 监视单元感测电极间电压,并且基于此,将输出信号传递到控制电子器件,以便控制弱电流,使得电极间电压保持恒定在给定值。 该输出信号被监测,具有显着的偏差,或者不能保持指示电极系统中存在故障的电极间电压恒定。