心脏起搏器是一种仿生学的电子植入装置,其植入人体后将直接参与体内心脏的各种电活动,因此,其需具有心脏的各种电生理特性。当今心脏起搏器均为按需性起搏器,即起搏器设有感知通道,能精准感知人体是否有自身的心电活动,一旦缺如,将立即发放一次起搏脉冲并有效起搏心脏。相反,当AAI起搏器的心房感知通道感知到一次自身心房A波或一次心房起搏脉 Pacemakers are biomimetic electronic implants that, when implanted in the body, are directly involved in the various electrical activities of the body’s heart and therefore require various electrophysiological properties of the heart. Today’s pacemakers are on-demand pacemaker, which means that the pacemaker with a channel of perception, can accurately perceive the human body has its own ECG, once missing, will be issued immediately pacing pulse and effective pacing heart. In contrast, when the AAI pacemaker’s atrial sensing channel senses an A-wave of its own atria or atrial pacing