MULTI-ZONE BIPOLAR ABLATION PROBE ASSEMBLY

摘要

A medical probe assembly comprises an elongated member and electrode elements mechanically coupled to the distal end of the elongated member. The electrode elements are configurable as two bipolar electrode pairs with a common electrode element. At least one of the electrode elements comprises a plurality of electrodes (such as, e.g., needle electrodes) radially extendable from the elongated member. A radio frequency source can be connected to the probe assembly in order to convey ablation energy to the electrode pairs, either simultaneously or sequentially.