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心电图机能将心脏活动时产生的电信号记录下来,是医生诊断和科学研究常用的医用电子仪器。心脏活动之前,心肌先兴奋,兴奋过程中便产生电流,产生电流经人体组织向外传导。由于人身体上各部分的组织的密度不同,而且各部分与心脏间的距离不同,因此在人体体表表现出的电位也不同,这种人体心脏内的电活动所产生的电位与时间的关系称为心电图。心电图机就是记录这些电信号的仪器。
ECG function can be generated when the heart activity signals recorded, is commonly used in medical diagnosis and scientific medical electronic equipment. Prior to cardiac activity, the first myocardial excitement, excitement in the process will produce current, resulting in current conduction through the human body tissue. Due to the different density of the body parts of the organization, and the various parts of the heart and the distance between different potentials in human body surface also shows that this human body’s electrical activity within the potential generated by the relationship between the time Called the electrocardiogram. ECG machine is recording these electrical signals of the instrument.