RF Ablation for Nonresectable Liver Lesions

A new radiofrequency (RF) ablation system is for use in percutaneous, laparoscopic, and intraoperative coagulation and ablation of tissue, such as the partial or complete ablation of nonresectable liver lesions.

Using an RF current, the Cool-tip RF ablation system allows physicians to treat patients who are not suitable surgical candidates or are otherwise unable to be successfully treated with other methods. The system was developed by Valleylab (Boulder, CO, USA; www.valleylab.com), a business unit of Tyco Healthcare.

The Cool-tip RF system utilizes a novel combination of RF current and internal electrode cooling to effectively heat and coagulate large volumes of tissue. During the ablation process, the 17-guage electrode internally circulates water to cool the tissue adjacent to the exposed electrode, maximizing energy deposition and minimizing tissue charring. In addition, the system's generator software monitors tissue impedance and adjusts the output accordingly.

Valleylab is a manufacturer of advanced energy-based medical systems, including electrosurgical generators, accessories, and disposable products, a vessel sealing system, patient return electrodes, argon-enhanced electrosurgery systems, laparoscopic instruments, and RF treatment systems.



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