Thermal Ablation of Biological Tissue

Abstract

An ablation device is described comprising an introducer and an electrode array. The electrode array couples to a distal end of the introducer. The electrode array includes a center member having a distal end configured to penetrate tissue and a plurality of electrodes. Proximal and distal ends of each electrode are relatively fixed. The electrodes are dynamically configurable from a retracted state to a deployed state in which the electrodes form a relatively spherical shape in a tissue volume.

1 . An ablation device, comprising:
 an introducer; and   an electrode array coupled to a distal end of the introducer, the electrode array including a center member having a distal end configured to penetrate tissue and a plurality of electrodes, wherein proximal and distal ends of each electrode are relatively fixed, wherein the plurality of electrodes are dynamically configurable from a retracted state to a deployed state in which the electrodes form a relatively spherical shape in a tissue volume.   
   
   
       2 - 17 . (canceled)