The Peta RFA System is an INVAMED radiofrequency lesion generator designed to support physicians performing nerve-targeted ablation procedures for chronic pain confirmed to originate from specific spinal structures. This clinician-oriented overview summarizes the intended use, design concept, and monitoring features relevant to interventional pain practice.
What Is the Peta RFA System Designed For?
Peta RFA is designed to deliver controlled radiofrequency energy through a specialized electrode positioned near a pain-generating nerve, creating a thermal lesion intended to interrupt nerve conduction. It is designed for applications including:
- Facet joint arthropathy in the cervical, thoracic, and lumbar regions
- Sacroiliac (SI) joint pain syndromes
- Chronic axial back and neck pain that has not responded to conservative therapies and has been diagnostically confirmed
- Selective peripheral nerve ablation, including genicular nerve targets for knee pain
The system is intended for use following diagnostic confirmation, such as a positive response to medial branch blocks, as part of an individualized treatment plan determined by the treating physician.
How Does the Generator Work?
The Peta RFA System transmits radiofrequency energy — commonly cited in the low hundreds-of-kHz range for this class of nerve ablation device — through an insulated electrode placed adjacent to the target nerve under imaging guidance. The resulting localized heating is engineered to create a controlled thermal lesion at the nerve while limiting energy spread to adjacent tissue.
Key design considerations for clinicians evaluating this class of device typically include:
- Real-time monitoring — continuous feedback on temperature, impedance, and estimated lesion parameters is intended to help the physician titrate energy delivery.
- Sensory/motor stimulation testing — pre-lesion stimulation capability supports confirmation of electrode proximity to the intended sensory nerve while helping avoid motor nerve involvement.
- Multi-region applicability — the platform is designed to support procedures across the cervical, thoracic, lumbar, and SI regions, as well as selected peripheral nerve targets such as the genicular nerves.
What Should Clinicians Consider When Evaluating RF Generators?
When assessing an RF lesion generator for practice integration, interventional pain physicians commonly weigh factors such as compatibility with existing electrode/cannula systems, the granularity of real-time feedback displayed during lesioning, and workflow efficiency across multiple anatomical targets in a single session. As with any energy-based device, physicians should follow the manufacturer's Instructions for Use (IFU) and institutional protocols, and should be aware that all procedures using thermal energy near neural structures carry inherent risks that require careful technique and patient selection.
Regulatory and Availability Notes
Device availability and regulatory status vary by country. Please contact INVAMED or your authorized local distributor for current regulatory information applicable to your region.
Frequently Asked Questions
What patient population is typically considered for Peta RFA procedures?
Physicians typically evaluate patients with chronic pain diagnostically attributed to a specific nerve or joint — most often via medial branch blocks for facet-mediated pain — and who have not achieved adequate relief through conservative management alone.
Does the Peta RFA System support both spinal and peripheral nerve targets?
Yes, the platform is designed to support applications across facet joint medial branches, SI joint lateral branches, and selected peripheral nerve targets such as the genicular nerves associated with knee pain.
How does real-time feedback support the procedure?
Continuous temperature and impedance monitoring during energy delivery is intended to help the physician manage lesion formation and reduce the likelihood of under- or over-treatment at the electrode tip.
Related INVAMED Resources
- Peta Radiofrequency Ablation (RFA) System, Nerve — product page
- Pain Management & Spine (Algology) products
- Contact INVAMED for Product Information
Medical Disclaimer: This article is provided for general informational and educational purposes only and does not constitute medical advice, diagnosis, or treatment recommendation. It is not a substitute for consultation with a qualified healthcare professional. Product indications, availability, and regulatory status vary by country. Always refer to the official Instructions for Use (IFU) and consult a licensed physician for guidance specific to your situation. INVAMED devices are intended for use by trained healthcare professionals.