VVI 型(心室起搏,心室感知、抑制型)起搏器是目前应用最广泛的一种起搏器,本文特别参照VVI 型起搏器解释起搏器功能异常时的心电图原理。分别检查超搏器的四个方面:电池状态、起搏(刺激)功能分折、感知(抑制)功能分析和控制电路功能分析。电池功能许多起搏器加入了电池状态指示电路,通常采取逐步增加输出脉冲宽度和/或逐渐增加R—R 间距的方式。这一般是以10%的顺序增加(电池寿命的起始和终结之间),以至有必要精确测量脉冲宽度和起搏R—R 间距。虽然可以用高速示波器观察起搏器脉冲的轨迹,但一般用专门的数字分析器测量脉冲宽度。 VVI type (ventricular pacing, ventricular perception, inhibitory) pacemaker is currently the most widely used as a pacemaker, this particular reference to the VVI pacemaker to interpret the pacemaker dysfunction when the ECG principle. Four aspects of the pacemaker were examined: battery status, pacing (stimulation) function, perception (inhibition) function analysis and control circuit function analysis. Battery Functions Many pacemakers incorporate battery status indicators, usually by gradually increasing the output pulse width and / or increasing the R-R spacing. This typically increases in order of 10% (between the beginning and the end of battery life), making it even necessary to accurately measure the pulse width and the paced R-R spacing. Although you can use a high-speed oscilloscope to observe the pulse of a pacemaker, you typically measure the pulse width with a specialized digital analyzer.