Artificial cardiac pacemaker | 合法醫療器材資訊網

Theprimarypurposeofapacemakeristomaintainanadequateheartrate,eitherbecausetheheart'snaturalpacemakerisnotfastenough,orbecausethereisa ...

Medical device

An artificial cardiac pacemaker (artificial pacemaker, and sometimes just pacemaker, although the term is also used to refer to the bodys natural cardiac pacemaker) is a medical device, nowadays always implanted, that generates electrical pulses delivered by electrodes to one or more of the chambers of the heart, the upper atria or lower ventricles. Each pulse causes the targeted chamber(s) to contract and pump blood,[3] thus regulating the function of the electrical conduction system of the heart.

The primary purpose of a pacemaker is to maintain an adequate heart rate, either because the hearts natural pacemaker is not fast enough, or because there is a block in the hearts electrical conduction system. Modern pacemakers ar...