What are the two parts of implantable cardioverter defibrillators (ICD)?
The ICD has two parts: the lead(s) and a pulse generator. The lead(s) are made up of wires and sensors that monitor the heart rhythm and deliver energy used for pacing and/or defibrillation (see below for definitions). The generator houses the battery and a tiny computer. Energy is stored in the battery until it is needed. The computer receives information from the leads to determine how the heart is beating.
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