The Boston Scientific RELIANCE 4-FRONT DF4 ICD Defibrillation Lead (REF 686) is a transvenous defibrillation lead intended for chronic implantation with compatible Boston Scientific implantable cardioverter defibrillators (ICDs) and CRT-D devices. Featuring the consolidated DF4-LLHH in-line connector, the RELIANCE 4-FRONT lead is engineered to streamline the header connection by combining pace/sense and high-voltage conductors into a single terminal pin.
Key Features
- DF4-LLHH (IS-4 family) single in-line connector to simplify implant and reduce header bulk
- Active fixation distal tip with extendable/retractable helix for targeted placement
- Single defibrillation shocking coil configuration
- Steroid-eluting collar intended to support stable pacing thresholds
- Silicone insulation with polyurethane/PTFE layering for handling and durability
- Designed for compatibility with Boston Scientific DF4-enabled ICD and CRT-D pulse generators
Clinical Applications
- Delivery of high-voltage defibrillation and cardioversion therapy
- Bradycardia and antitachycardia pacing
- Intracardiac electrogram sensing for tachyarrhythmia detection
- Use as the right ventricular lead in single-chamber, dual-chamber, and CRT-D ICD systems
Product Information
Brand: Boston Scientific
Product Line: RELIANCE 4-FRONT
Model / REF: 686
Category: ICD Leads for Implantable Cardioverter Defibrillators
Connector: DF4-LLHH
Fixation: Active (extendable helix)
Coil Configuration: Single-coil (RV)
Lead Length: Not specified in the located sources
Lead Body Diameter: Not specified in the located sources
Sterilization: Supplied sterile, single-use
Storage: Refer to manufacturer IFU
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