20G 145mm Straight RF Cannula for Lumbar Facet Joint RF Ablation The 20G 145mm Straight RF Cannula is a single-use radiofrequency cannula designed for lumbar facet joint radiofrequency ablation. Its longer shaft provides reliable access to deeper lumbar targets, while the 10mm active tip creates a predictable lesion along the medial branch nerves for facet joint denervation. The cannula is compatible with standard RF lesion generators and is supplied sterile for single