Apparatus for detecting heart characteristics using electrical stimulation
    7.
    发明公开
    Apparatus for detecting heart characteristics using electrical stimulation 失效
    Gerzt zur Bestimmung von Herzmerkmalen durch elektrische Reizung。

    公开(公告)号:EP0310216A2

    公开(公告)日:1989-04-05

    申请号:EP88305329.0

    申请日:1988-06-10

    IPC分类号: A61N1/365 A61B5/04

    摘要: Apparatus is described for determining ventricular fibrillation threshold (VFT), as a measure of electro­cardiac stability. Input from ECG electrodes (10) and optionally also a blood pressure sensor (20) are digitised and fed to a data processing unit (50) that controls the operation of a unit (60) for generating specifically coded pulses used to stimulate the heart. The data processing unit (50) adjusts time location and amplitude of the coded pulses relative to a series of pacing pulses, in order to induce anomalous multiple extrasystoles or ventricular tachycardia, the characteristic ECG waveforms being identified by the apparatus and the data processing unit (50) instructing the signal generating unit (60) to stop stimulation without ventricular fibrillation occurring. The data processing unit is set up to calculate VFT using the amplitude of pulse needed to induce ME/VT, and display the calculated VFT value.

    摘要翻译: 描述了用于确定心室颤动阈值(VFT)的装置,作为心电稳定性的量度。 从ECG电极(10)和可选地还有血压传感器(20)的输入被数字化并且馈送到数据处理单元(50),该数据处理单元控制用于产生用于刺激心脏的特定编码脉冲的单元(60)的操作。 数据处理单元(50)相对于一系列起搏脉冲来调整编码脉冲的时间位置和振幅,以便引起异常的多个惊厥或室性心动过速,由设备和数据处理单元( 50)指示信号生成单元(60)停止刺激而不发生心室颤动。 数据处理单元设置为使用诱导ME / VT所需的脉冲幅度来计算VFT,并显示计算出的VFT值。