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Pacemaker, X-ray

Pacemaker, X-ray

M500/0057

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Credit

LEONARD LESSIN / SCIENCE PHOTO LIBRARY LEONARD LESSIN / SCIENCE PHOTO LIBRARY

Caption

Heart pacemaker. Pulsar Max II heart pacemaker (top) on a X-ray showing the same model (bottom) surgically implanted beneath the collar bone in the front of the chest. A pacemaker supplies electrical impulses along a lead to the heart to keep it beating regularly. Pacemakers are fitted in patients with a malfunctioning sinoatrial node, the part of the heart which initiates each heartbeat, or who have a heart block impairing the nerve impulses generated by the node. Heart pacemakers may provide a regular impulse (fixed rate pacemaker) or may discharge only when a heartbeat is missed (demand pacemaker). This pacemaker incorporates an 8-year battery.

Release details

Model release not required. Property release not required.

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