摘要:
Heart stimulating system for stimulating at least a ventricle of a heart including: stimulation pulse generator adapted to generate stimulation pulses and connected to a ventricular stimulation electrode for delivering stimulation pulses, atrial sensing stage connected to an electrode for picking up potentials inside an atrium and adapted to sense an excitation or contraction of atrial myocardium, ventricular sensing stage connected to an electrode for picking up potentials inside a ventricle and adapted to sense an excitation or contraction of ventricular myocardium, memory for AV-delay values, a control unit adapted to trigger said stimulation pulse generator to generate ventricular stimulation pulses timed based on AV-delay values stored in said memory and to acquire atrioventricular interval samples, and atrioventricular interval timing analyzing unit for receiving atrioventricular interval samples from said control unit and adapted to generate at least one histogram based on said atrioventricular interval samples and analyze said histograms.
摘要:
A heart monitoring system comprises a ventricular sensing stage sensing excitation or contraction of ventricular myocardium, an activity sensor unit determining a signal reflecting a patient's physical activity, a ventricular impedance or conductance measuring module, said modules comprising a current source unit adapted to provide a sub-threshold excitation current to the myocardium and comprising an impedance or conductance measurement unit for measuring the resulting voltage on said electrode at the myocardium, a signal generator module, a filter module, a memory, a control unit adapted to derive single measures |ΣZ| of magnitude of impedance or conductance change over a preset sample time interval, determine the variability TARVI in the impedance or conductance change, compare this variability and the activity sensor output signal with a threshold and recent history, determine if sleep disturbed breathing (SDB) is present, and log the SDB episode in the memory device.
摘要翻译:心脏监测系统包括心室感测阶段感测心室心肌的激发或收缩,活动传感器单元确定反映患者身体活动的信号,心室阻抗或电导测量模块,所述模块包括电流源单元,其适于提供子 并且包括用于测量心肌上的所述电极上产生的电压的阻抗或电导测量单元,信号发生器模块,滤波器模块,存储器,适于导出单个测量的控制单元。 Z | 在预设的采样时间间隔内测量阻抗或电导变化的大小,确定阻抗或电导变化中的变异性TARVI,将该变异性和活动传感器输出信号与阈值和最近历史进行比较,确定睡眠扰动呼吸(SDB)是否为 呈现并记录SDB剧集在内存设备中。
摘要:
Cardiac pacemaker, having at least one stimulation pulse generator to selectively generate stimulation pulses for delivery to an atrium or to an atrium and a ventricle of a heart in DDD mode, at least one sensing stage adapted to process electrical signals sensed by an atrial and ventricular sensing electrode to detect an atrial or ventricular event and to generate an atrial or ventricular sense signal upon event detection, a control unit connected to the generator and sensing stage and being adapted to trigger the generator in DDD mode, wherein the control unit is adapted to verify proper atrioventricular conduction and to switch from a regular (DDD) mode, wherein scheduled ventricular stimulation pulses having predetermined positive intensity is triggered unless inhibited to a ventricular pulse suppression mode (VPS mode) wherein no ventricular stimulation pulses or ventricular stimulation pulses of sub-threshold intensity are generated as long as proper atrioventricular conduction is verified.
摘要翻译:心脏起搏器,具有至少一个刺激脉冲发生器,以选择性地产生刺激脉冲,用于递送至DDD模式的心房或心脏的心房和心室,至少一个感测级,适于处理由心房和心室感测的电信号 检测电极以检测心房或心室事件并且在事件检测时产生心房或心室感测信号;控制单元,其连接到所述发生器和感测级,并且适于以DDD模式触发所述发生器,其中所述控制单元适于 验证正常的房室传导并从常规(DDD)模式切换,其中触发具有预定正强度的预定心室刺激脉冲,除非被抑制到心室脉搏抑制模式(V S P S模式),其中无心室 只要适当的房室传导c就产生刺激脉冲或亚阈值强度的心室刺激脉冲 导弹被验证。
摘要:
Cardiac pacemaker, having at least one stimulation pulse generator to selectively generate stimulation pulses for delivery to an atrium or to an atrium and a ventricle of a heart in DDD mode, at least one sensing stage adapted to process electrical signals sensed by an atrial and ventricular sensing electrode to detect an atrial or ventricular event and to generate an atrial or ventricular sense signal upon event detection, a control unit connected to the generator and sensing stage and being adapted to trigger the generator in DDD mode, wherein the control unit is adapted to verify proper atrioventricular conduction and to switch from a regular (DDD) mode, wherein scheduled ventricular stimulation pulses having predetermined positive intensity is triggered unless inhibited to a ventricular pulse suppression mode (VPS mode) wherein no ventricular stimulation pulses or ventricular stimulation pulses of sub-threshold intensity are generated as long as proper atrioventricular conduction is verified.
摘要:
Heart stimulating system for stimulating at least a ventricle of a heart including: stimulation pulse generator adapted to generate stimulation pulses and connected to a ventricular stimulation electrode for delivering stimulation pulses, atrial sensing stage connected to an electrode for picking up potentials inside an atrium and adapted to sense an excitation or contraction of atrial myocardium, ventricular sensing stage connected to an electrode for picking up potentials inside a ventricle and adapted to sense an excitation or contraction of ventricular myocardium, memory for AV-delay values, a control unit adapted to trigger said stimulation pulse generator to generate ventricular stimulation pulses timed based on AV-delay values stored in said memory and to acquire atrioventricular interval samples, and atrioventricular interval timing analyzing unit for receiving atrioventricular interval samples from said control unit and adapted to generate at least one histogram based on said atrioventricular interval samples and analyze said histograms.
摘要:
A heart monitoring system comprises a ventricular sensing stage sensing excitation or contraction of ventricular myocardium, an activity sensor unit determining a signal reflecting a patient's physical activity, a ventricular impedance or conductance measuring module, said modules comprising a current source unit adapted to provide a sub-threshold excitation current to the myocardium and comprising an impedance or conductance measurement unit for measuring the resulting voltage on said electrode at the myocardium, a signal generator module, a filter module, a memory, a control unit adapted to derive single measures |ΣZ| of magnitude of impedance or conductance change over a preset sample time interval, determine the variability TARVI in the impedance or conductance change, compare this variability and the activity sensor output signal with a threshold and recent history, determine if sleep disturbed breathing (SDB) is present, and log the SDB episode in the memory device.
摘要:
An implantable medical device that continuously measures the patient's intracardiac ventricular impedance. Extracts cardiac performance information based on the intracardiac impedance, including amplitude, timing and variability of cardiac contraction function. The device records and analysis trends in the performance information. The device identifies changes, which exceed the selected threshold limits. In the event of an incipient crisis, the device transmits an alert message.
摘要:
An implantable medical device that continuously measures the patient's intracardiac ventricular impedance. Extracts cardiac performance information based on the intracardiac impedance, including amplitude, timing and variability of cardiac contraction function. The device records and analyses trends in the performance information. The device identifies changes, which exceed the selected threshold limits. In the event of an incipient crisis, the device transmits an alert message.