Abstract
High-frequency cold plasma ablation (Coblation) is a non-thermal method of electrosurgery. It is implemented as follows. High-frequency energy is applied to a conductive medium (usually saline solution), causing a highly focused plasma field to form around the energized bipolar electrodes. The plasma field is comprised of highly ionized particles. These ionized particles have sufficient energy (3-6 eV) to break organic molecular bonds within tissue. The byproducts of this non-thermally driven process are elementary molecules and low molecular weight inert gases. Instead of exploding tissue, Coblation causes a low temperature molecular disintegration. The result is volumetric removal of target tissue with minimal necrosis of collateral tissue. Below, the characteristics of the Coblation technology are compared with those of conventional electrosurgery:
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