Patent ID: 8043289

Claim:
A tissue ablation probe comprising: a shaft having a distal end and a proximal end; a first array of electrodes mounted on the shaft and configured for movement between a retracted configuration and a deployed configuration, wherein movement to the deployed configuration comprises deployment of at least one electrode of the first array from the shaft in an initial distal direction followed by a radially outward eversion so as to place an end face of the at least one electrode of the first array at least partially in the proximal direction; a second array of electrodes mounted on the shaft and configured for movement between a retracted configuration and a deployed configuration, wherein movement to the deployed configuration comprises deployment of at least one electrode of the second array from the shaft in an initial proximal direction followed by everting in the radially outward direction so as to place an end face of the at least one electrode of the second array at least partially in the distal direction; a first connector coupled to the shaft and electrically connected to the first electrode array, the first connector configured to connect to one pole of a power supply; and a second connector coupled to the shaft and electrically connected to the second electrode array, the second connector configured to connect to a second pole of the power supply.