What are Sprint Fidelis Leads?

Manufactured by Medtronic, Inc., Sprint Fidelis Leads are specific models of cardiac electrodes (thin wires) that connect an implantable cardioverter-defibrillator (ICD) or cardiac resynchronization therapy defibrillator (CRT-D) directly to the heart. ICDs and CRT-Ds are devices that protect patients when life-threatening heart rhythms occur.