The Boston Scientific ENDOTAK RELIANCE 4-SITE DF4 Defibrillation Lead (REF 265) is a transvenous, single-pass implantable cardioverter defibrillator (ICD) lead designed for chronic placement in the right ventricle. It utilizes the DF4-LLHH connector standard to streamline header connections and reduce the number of set screws compared to legacy IS-1/DF-1 configurations.
Key Features
DF4-LLHH proximal connector for simplified single-port header attachment
Dual-coil shocking configuration (RV and SVC) for high-voltage therapy delivery
Active fixation with extendable/retractable helix for targeted septal or apical placement
GORE expanded polytetrafluoroethylene (ePTFE) coil coverage intended to facilitate extraction
Steroid-eluting tip designed to mitigate acute pacing threshold rise
Silicone insulation with polyurethane outer layer for handling and durability
Clinical Applications
Intended for use with Boston Scientific implantable cardioverter defibrillator (ICD) and CRT-D pulse generators that support the DF4 connector standard
Delivers ventricular pacing, sensing, cardioversion and defibrillation therapy
Suited for patients indicated for ICD therapy per the implanting physician's assessment
Product Information
Brand: Boston Scientific
Product Line: ENDOTAK RELIANCE 4-SITE
REF / UPN: 265
Category: ICD Leads for Implantable Cardioverter Defibrillators
Connector: DF4-LLHH
Fixation: Active (extendable/retractable helix)
Configuration: Dual-coil (RV and SVC defibrillation coils)
Lead Length: Not specified in the located sources
Sterility: Supplied sterile for single use
Status: B2B procurement listing; verify lot, expiration and regulatory status with the supplier prior to purchase
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Boston Scientific ENDOTAK RELIANCE 4-SITE DF4 Defibrillation Lead | REF 263 is listed for supplier-ready medical device procurement with manufacturer, category, REF/UPN and RFQ context.
Boston Scientific ENDOTAK RELIANCE 4-SITE DF4 transvenous defibrillation lead (REF 266) for implantable cardioverter defibrillator systems, featuring an integrated DF4 connector and dual defibrillation coils.
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