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Prepackaged collections of the devices and supplies (i.e., either custom or standard kits) needed for the removal of the wires that transmit energy between a pacemaker and/or defibrillator and the heart (i.e., pacemaker/defibrillator leads). Items in these kits usually include a stylet for locking at the distal tip of the lead and a sheath for separating adhering fibrous tissue. The kits are frequently supplied in supporting trays (i.e., procedure trays) consisting of a flat-bottomed receptacle with a border around the periphery supporting all the instruments and supplies needed for the procedure; the trays are usually covered or wrapped. Defibrillator/pacemaker lead extraction procedure kits and trays are intended for explanting the leads, frequently in cases of lead malfunction, local infection or sepsis, or the presence of unnecessary leads. They are used mainly in hospitals\' operating rooms and catheterization laboratories.
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