MESH-OVERLAYED ABLATION AND MAPPING DEVICE

摘要

A medical system, including a catheter body, an elongate body disposed in the catheter body; an expandable element having a proximal portion coupled to the catheter body and a distal portion coupled to the elongate body, the distal portion of the expandable element defining the distal-most portion of the medical device; a mesh or array of longitudinal splines substantially surrounding the expandable element, at least a portion of the mesh or splines being electrically conductive; and a coolant source in fluid communication with the expandable element.

主权项

1. A method of treating a substantially continuous tissue region, the method comprising:
positioning a medical device adjacent the tissue region, the medical device including an expandable element and an electrically conductive mesh substantially enclosing the expandable element; contacting the substantially continuous tissue region with a distal face of the expandable element; measuring an electrical signal from the tissue region with the mesh; and ablating at least a portion of the tissue region with at least one of the expandable element and the mesh.