| 摘要 |
<p>An apparatus and system for ablation of body structure or tissue in the region of the rectum. A catheter (120) is inserted into the rectum, and an electrode (113) is disposed thereon for emitting energy. The environment for an ablation region is isolated or otherwise controlled by blocking gas or fluid using a pair of inflatable balloons (116) at upstream and downstream locations. Inflatable balloons (116) also serve to anchor the catheter in place. A plurality of electrodes (113) are disposed on the catheter and at least one electrode is selected and advanced out of the catheter to penetrate tissue. The electrodes are coupled to sensors which are used by feedback to control the delivery of energy for ablation or fluids for cooling or hydration.</p> |
