The Boston Scientific RELIANCE 4-FRONT DF4 ICD Defibrillation Lead (REF 653) is a transvenous implantable defibrillation lead designed for use with compatible DF4-LLHH connector implantable cardioverter defibrillator (ICD) and CRT-D pulse generators. The single-connector DF4 design consolidates pace/sense and high-voltage conductors into one terminal pin, supporting a streamlined implant procedure and a reduced header profile compared with legacy DF-1/IS-1 configurations.
Key Features
Single DF4-LLHH proximal connector consolidating pace/sense and defibrillation conductors.
RELIANCE 4-FRONT lead platform engineered for high-voltage defibrillation therapy delivery.
Active fixation distal tip designed for stable endocardial placement in the right ventricle.
Steroid-eluting electrode intended to support stable pacing thresholds.
Compatible with Boston Scientific DF4-connector ICD and CRT-D pulse generators (refer to manufacturer compatibility matrix).
Constructed for chronic transvenous implantation in the right ventricle.
Clinical Applications
Intended for use as part of an implantable cardioverter defibrillator system for the detection and termination of ventricular tachyarrhythmias.
Supports bradycardia pacing, sensing, and high-voltage defibrillation therapy when connected to a compatible DF4 pulse generator.
Used in single-chamber ICD, dual-chamber ICD, and CRT-D system configurations per the implanting physician's selection.
Product Information
Brand: Boston Scientific
Product Line: RELIANCE 4-FRONT
Model / REF: 653
Category: ICD Leads for Implantable Cardioverter Defibrillators
Connector: DF4-LLHH
Fixation: Active (refer to manufacturer specifications to confirm)
Lead Length: Not specified in the located sources
Shock Coils: Not specified in the located sources
Sterility: Supplied sterile for single use (refer to product labeling)
Compatibility: Boston Scientific DF4-connector ICD and CRT-D pulse generators
Note: Specifications, indications, and compatibility should be verified against the current manufacturer Instructions for Use (IFU) and product matrix prior to purchase or clinical use.
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