SYSTEM AND METHOD FOR MARGINAL TISSUE ABLATION

摘要

A probe includes a shaft and an applicator head designed to treat irregularly-shaped hollow cavities, such as a cavity in breast tissue created by a lumpectomy procedure. The applicator head has a fixed geometry, and a plurality of electrodes can be advanced from an exterior surface of the applicator head in an omnidirectional pattern. The electrodes are used to deliver radiofrequency current or other energy to ablate the marginal tissue.