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Endoluminal RF Electrode
A flexible bipolar RF catheter engineered for safe, targeted ablation of benign and malignant biliary strictures using a percutaneous approach.
Biliary obstruction can significantly impact patient quality of life, leading to jaundice, infection, and repeated interventions. While stents restore flow, occlusion and recurrent strictures are common.
ELRA™ provides a safe, precise radiofrequency ablation solution that helps maintain duct patency, improve stent performance, and expand treatment options for both benigh and malignant biliary strictures.
When paired with the VIVA combo RF Generator, Temperature Mode ensures ELRA™ delivers controlled, reproducible ablation zones, enhancing safety and giving physicians confidence in every procedure.
With Temperature Mode activated, the ELRA™ catheter measures tissue temperature at the ablation site and transmits continuous feedback to the generator.
How It Works – A Closed-Loop Safety System for Enhanced Patient Safety
In Temperature Mode, the physician sets the optimal ablation temperature.
The ELRA™ catheter senses tissue in real time and relays data to the generator.
The generator automatically adjusts power output to maintain the set temperature.
System ends energy delivery once ablation is complete or contact is inadequate.
The ELRA™ system integrates additional features designed to optimize control, adaptability, and ease of use in complex biliary anatomies.
The VIVA combo RF Generator monitors impedance in real time, shutting off automatically if values are too high or too low. This safeguard prevents over-ablation and reduces thermal risk.
Available in 4 active tip lengths (11, 18, 22, and 33 mm), ELRA™ gives physicians the flexibility to tailor ablation to duct size, stricture length, and patient anatomy.
With a 7FR catheter and silicone conical tip, ELRA™ passes smoothly through narrow ducts, allowing precise placement even in complex anatomies.
Fluoroscopic images demonstrate the use of ELRA™ in both the right and left hepatic ducts. These cases highlight the catheter’s ability to navigate complex ductal anatomies and deliver targeted ablation with precision. By restoring duct patency in strictures, ELRA™ provides a minimally invasive option that relieves obstruction and improves quality of life for patients.
A bipolar electrode delivers energy between two poles on the same catheter tip. This offers more precise ablation in small, delicate structures like the biliary ducts.
RFA helps ablate obstructive tissue within the bile ducts, which can restore ductal patency before placing a stent.
