5. COOLIEF Cooled RF
Halyard Health

[Image from Halyard Health]
The device delivers RF energy through water-cooled electrodes. That delivery creates large-volume, spherically-shaped lesions that project 45% past the tip of the probe. Friction of charged molecules creates ionic heating that thermally deactivates the nerves.
Halyard Health reports that the therapy has been clinically proven to provide up to 24 months of pain relief, improved physical functionality and reduced drug utilization.