A pacemaker is a medical device that uses electrical impulses to regulate the heart's rhythm, ensuring it beats at a normal rate and rhythm, especially in cases of arrhythmias. It is implanted under the skin and connected to the heart with leads, continuously monitoring cardiac activity and providing stimulation when necessary.

Pacemaker

pacemaker

A medical device is any instrument, apparatus, implement, machine, appliance, implant, reagent for in vitro use, software, material, or other similar or related article intended by the manufacturer to be used, alone or in combination, for human beings for a medical purpose. These purposes include diagnosis, prevention, monitoring, treatment, or alleviation of disease, injury, or disability, as well as supporting or sustaining life and controlling conception.

medical device

Electrical impulses are rapid signals transmitted along the nerve fibers, enabling communication between neurons and other cells. They are crucial for the functioning of the nervous system, facilitating responses to stimuli and coordination of bodily functions.

electrical impulses

heart's rhythm

normal rate

Arrhythmias are irregular heartbeats that can range from harmless to life-threatening, affecting the heart's ability to pump blood effectively. They can be caused by various factors, including coronary artery disease, electrolyte imbalances, and changes in heart tissue, and are typically diagnosed using an electrocardiogram (ECG).

arrhythmias

implanted under the skin

connected to the heart

cardiac activity

Stimulation refers to the act of arousing or enhancing activity in biological or psychological systems, often leading to increased alertness, responsiveness, or development. It plays a critical role in various fields such as neuroscience, psychology, and education, where it is used to understand and influence behavior and cognitive processes.

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