This is a technical overview of an INVAMED device within the pain management, spine & algology portfolio. Thermal RF creates a heat lesion to interrupt pain transmission, while pulsed RF applies energy in bursts intended to modulate the nerve without the same degree of thermal lesioning. As a medical device manufacturer, INVAMED develops technologies in this area; the information here is educational and not medical advice.
Background: Chronic Pain Managed with Interventional Radiofrequency Techniques
RF procedures are generally performed percutaneously under imaging guidance, and modern generators provide feedback on parameters such as temperature and impedance to support safe energy titration. Interventional pain management, sometimes called algology, addresses chronic back, neck, joint, and tumor-related pain that has not responded adequately to conservative measures. Common targets include the medial branch nerves supplying the facet joints of the spine, the sacroiliac region, and peripheral nerve branches such as the genicular nerves around the knee.
Peta Radiofrequency Ablation (RFA) for Knee Pain: Overview
RFA configuration for chronic knee pain, ablating genicular sensory nerves to provide durable pain relief in osteoarthritic or post-surgical knees.
How It Works and Where It Fits
INVAMED's pain management portfolio centres on radiofrequency lesion generators and electrode systems, organized by the anatomical target and the type of RF energy delivered. Facet joint radiofrequency ablation targets the medial branch nerves that carry sensation from the small facet joints of the spine. Genicular nerve ablation, or knee RFA, targets the sensory genicular nerves around the knee to address chronic knee pain in selected patients.
Key Considerations
- Manufacturer descriptions reflect device design intent rather than a guaranteed outcome for any individual.
- Diagnostic nerve blocks are commonly used before radiofrequency ablation to help confirm the pain source, as judged by the clinician.
- The literature commonly cites facet RF relief in the range of about 6 to 12 months, but individual duration varies and is not guaranteed.
Frequently Asked Questions
Are these RF devices CE marked?
Regulatory status such as CE marking and manufacturing standards are stated in the product documentation and depend on local registration by market.
What feedback does the Peta RFA system provide?
INVAMED states the Peta RFA for Pain provides real-time feedback on temperature, impedance, and lesion size to support safe energy titration.
How long does RF ablation relief last?
The literature commonly cites facet-related relief of about 6 to 12 months, but duration varies by patient and target and is discussed with the treating specialist.
About INVAMED
Device availability and regulatory status vary by country. Please contact INVAMED or your authorized local distributor for current regulatory information applicable to your region.
Clinical and Technical Context
Candidacy and target selection are determined by the treating clinician following assessment. A central technique is radiofrequency (RF) treatment, in which controlled energy is delivered through an electrode to thermally ablate or modulate nerves that transmit pain signals. Its use is planned individually as part of a broader oncological and pain management strategy. Whether an RF procedure is appropriate, and which target is selected, is a clinical decision made by a pain specialist after diagnostic assessment. The choice between pulsed and thermal modes is made by the pain specialist for the specific target. The INVAMED Fusion Intraosseous Radiofrequency Ablation System for Spinal Tumors is positioned for this within-bone application. The specific nerves treated and the extent of lesioning are clinical decisions made under imaging guidance. Interventional pain management, sometimes called algology, addresses chronic back, neck, joint, and tumor-related pain that has not responded adequately to conservative measures. Generators such as the INVAMED Peta platform provide real-time feedback on temperature and impedance to support controlled energy delivery. Manufacturer descriptions reflect device design intent rather than a guaranteed outcome for any individual. The INVAMED Peta RFA System, Nerve is positioned for nerve-targeted thermal lesioning across cervical, thoracic, lumbar, and sacroiliac applications. The number and location of lesions are planned individually under imaging guidance.
Related on INVAMED
- Pain Management, Spine & Algology — product category
- Thermal RF vs Pulsed RF: What Is the Difference?
- Pain Management, Spine & Algology: A Complete Technical Guide
- How long does radiofrequency ablation last?
Important Disclaimer
This article is intended for general educational and technical information about medical device technologies. It is not medical advice, a diagnosis, or a treatment recommendation, and it does not replace consultation with a qualified healthcare professional. Any decision about diagnosis or treatment should be made by a licensed clinician based on an individual assessment. INVAMED devices are intended for use by trained healthcare professionals in accordance with the applicable Instructions for Use (IFU) and local regulatory approvals. Product availability and indications vary by country.
Reviewed by the INVAMED Medical Affairs team. Content is educational and technical in nature.