
Abbott IsoFlex Optim Pacing Lead | REF 1948
Abbott IsoFlex Optim pacing lead (REF 1948) — bipolar endocardial pacing lead featuring Optim insulation for enhanced durability and abrasion resistance.

The Boston Scientific FINELINE II Sterox Pacing Lead (REF 4456) is a bipolar endocardial pacing lead engineered for chronic cardiac stimulation and sensing. Constructed for stable long-term performance, it integrates a steroid-eluting tip intended to help mitigate acute and chronic pacing thresholds at the lead-tissue interface.
Key Features
Bipolar endocardial pacing lead configuration
Steroid-eluting (Sterox) tip designed to support favorable chronic pacing thresholds
Silicone insulation construction for established biostability
Compatible with standard Boston Scientific / Guidant pulse generator connector interfaces (refer to manufacturer compatibility matrix)
Available in multiple lead lengths and fixation configurations within the FINELINE II family (refer to official product matrix for REF 4456 specifics)
Clinical Applications
Chronic cardiac pacing and sensing in atrial or ventricular positions per labeled indication
Use with compatible implantable pulse generators for bradyarrhythmia management
Suitable for procurement in cardiac electrophysiology and implant programs
Consult the official Instructions for Use (IFU) for indications, contraindications, warnings and precautions
Product Information
Brand: Boston Scientific
Product Line: FINELINE II Sterox
REF/UPN: 4456
Category: Pacemaker Leads
Lead Type: Bipolar pacing lead with steroid-eluting tip
Lead Length: Not specified in the located sources
Fixation Type: Not specified in the located sources
Connector Standard: Not specified in the located sources
Sterility / Single-Use: Refer to product labeling and IFU
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