Vivaring Microwave Ablation Probe

FDA-Cleared Indications

• Microwave ablation of soft tissue using electromagnetic energy.
• Ablation of targeted tumor tissue under image guidance.
• Use in interventional procedures where controlled thermal destruction of tissue is indicated.

Clinical Applications

• Image-guided thermal ablation of selected liver tumors.
• Image-guided thermal ablation of selected lung tumors.
• Percutaneous tumor ablation when surgical resection is not appropriate or feasible.

Reported off-label uses

• Ablation of tumors in other soft-tissue organs, including selected kidney or adrenal tumors, depending on the specific device labeling and clinical circumstances.
• Palliative thermal treatment of selected malignant central airway obstructions in specialized practice.

Off-label use: these uses are reported in practice or the literature but are not part of the FDA-cleared indications. Physicians may use a cleared device off-label based on their medical judgment; the manufacturer may not promote off-label uses.

Practical Considerations

• The probe is introduced into the target tissue, usually percutaneously, with ultrasound, CT, or another imaging modality used for positioning and treatment monitoring.
• Probe length, shaft diameter, active-tip length, and power settings vary by model; confirm the specific Vivant Medical product configuration before use.
• Microwave ablation creates a zone of thermal injury, but the final ablation zone can vary with tissue type, blood flow, probe position, power, and treatment duration.
• MRI compatibility should not be assumed. Verify the exact model's labeling before bringing the probe into an MRI environment; procedures are commonly performed with CT or ultrasound guidance instead.
• Contraindications and precautions may include inability to safely access the target, uncorrected bleeding risk, infection along the access route, and proximity to vulnerable structures.