Seen here is the explanted heart. Pacemaker wires enter the right ventricle.

请看这个移植心脏，起搏器金属丝深入到右心室。

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The doctor will then use the needle to thread the pacemaker wires into a vein and to the correct location in your heart.

接着医生会利用针头向静脉内穿入起搏器的导线，最后到达心脏的恰当位置。

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At first, in the early 1950s, the patient wore his pacemaker outside his body, and wires passed through his skin to connect it to his heart.

最初，在五十年代初期，患者带一个体外心搏器、电线通过他的皮肤连接到心脏。

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The new pacemaker uses three wires, or leads, which are threaded into both sides of the heart to help it pump more efficiently.

CNN: Pacemakers found to help heart failure patients

After undergoing another surgery to replace Medtronic leads--wires connecting the pacemaker to the heart--with ones from Guidant, Davis sued both the hospital system and Haugland, charging medical malpractice and complaining that the second surgery could have been prevented.

FORBES: Unintended Consequences

This time I had a "brain pacemaker" installed, which uses wires and a battery source to stimulate deep parts of the brain with electric currents.

CNN: 'I had brain surgery while I was awake'