The Boston Scientific ENDOTAK RELIANCE 4-SITE DF4 Defibrillation Lead (REF 276) is a transvenous, single-pass defibrillation lead intended for connection to a compatible DF4-LLHH implantable cardioverter defibrillator (ICD) pulse generator. The ENDOTAK RELIANCE family is engineered to deliver pacing, sensing, and high-voltage defibrillation therapy through a single lead body with a streamlined DF4 connector.
Key Features
Single-connector DF4 (DF4-LLHH) terminal pin to simplify header connections and reduce setscrew count.
True bipolar pacing and sensing configuration for reliable rhythm discrimination.
Dual integrated defibrillation shocking coils (RV and SVC) for high-voltage therapy delivery.
GORE expanded polytetrafluoroethylene (ePTFE) coil coverage designed to support extractability.
Steroid-eluting tip intended to help limit acute pacing threshold rise at the electrode-tissue interface.
Active fixation helix for stable right ventricular placement.
Silicone outer insulation with polyurethane hybrid construction for handling and durability.
Clinical Applications
Use as the high-voltage lead component of an ICD or CRT-D system in patients indicated for implantable defibrillation therapy.
Delivery of antitachycardia pacing (ATP), cardioversion, and defibrillation shocks for ventricular tachyarrhythmias.
Chronic right ventricular pacing and intracardiac electrogram sensing.
Compatible with Boston Scientific DF4-headered ICD and CRT-D pulse generators (verify generator compatibility prior to use).
Product Information
Brand: Boston Scientific
Product Line: ENDOTAK RELIANCE 4-SITE
Model / REF: 276
Category: ICD Leads for Implantable Cardioverter Defibrillators
Connector: DF4-LLHH
Lead Type: Transvenous, dual-coil, true bipolar defibrillation lead
Fixation: Active (extendable/retractable helix)
Lead Length: Not specified in the located sources
Lead Body Diameter: Not specified in the located sources
Sterility: Supplied sterile for single use
Storage: Refer to manufacturer IFU for storage and handling requirements.
For full indications, contraindications, warnings, and precautions, consult the official Boston Scientific Instructions for Use.
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