正常心脏搏动时,其激动发自右心房与上腔静脉间的窦房结,经过心房肌、房室交界部、希氏束、左右束支、浦顷野氏纤维等部位,最后到心室肌。由于各种原因致使激动传导障碍或激动生成异常,造成心脏搏动异常,导致循环障碍。此时若给心肌一持续性的短时间的微弱的电流刺激,可使心脏有节律地搏动,这种装置称为心脏起搏器。 Normal heart beating, the excitement from the right atrium and superior vena cava sinus node, after atrial muscle, atrioventricular junction, His bundle, left and right bundle branch, Posare wild fiber and other parts, and finally to the ventricular muscle . Due to various reasons resulting in agitated conduction disorders or abnormal activation, resulting in abnormal heart beat, leading to circulatory disorders. At this point if the myocardium for a sustained short period of weak current stimulation, can make the heart beat rhythmically, this device is called a pacemaker.