The Boston Scientific ENDOTAK RELIANCE 4-SITE DF4 Defibrillation Lead (REF 293) is a transvenous, single-pass implantable cardioverter defibrillator (ICD) lead designed for sensing, pacing, and high-energy defibrillation therapy. It features a DF4 connector configuration to streamline header connections with compatible Boston Scientific ICD and CRT-D pulse generators, and incorporates the RELIANCE platform with multiple fixation and shock coil design elements intended to support reliable long-term performance.
Key Features
DF4-LLHH connector compatible with DF4-compliant ICD and CRT-D generators
Dual shocking coil (RV and SVC) configuration for defibrillation therapy
RELIANCE 4-SITE design with multiple lead body anchoring/fixation features
True bipolar sensing and pacing electrode configuration
GORE expanded PTFE coil coverings to support extractability
Silicone and polyurethane lead body construction for durability and handling
Clinical Applications
Endocardial sensing and pacing in the right ventricle
High-voltage defibrillation therapy delivery for ventricular tachyarrhythmias
Use as the RV defibrillation lead component in single-, dual-, and CRT-D ICD systems
Chronic transvenous implantation in adult patients indicated for ICD therapy
Product Information
Brand: Boston Scientific
Product Line: ENDOTAK RELIANCE 4-SITE
Model/REF: 293
Category: ICD Leads for Implantable Cardioverter Defibrillators
Connector: DF4-LLHH
Lead Type: Transvenous, dual-coil defibrillation lead
Fixation: Not specified in the located sources
Lead Length: Not specified in the located sources
Sterilization: Supplied sterile, single-use (per manufacturer IFU)
Compatibility: Boston Scientific DF4-compatible ICD and CRT-D pulse generators
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