Patent ID: 8123741

Claim:
A system to treat tissue internal to a body, comprising: an elongate member having a proximal portion and a distal portion, the elongate member including a plurality of lumens extending therethrough; a tissue treatment member disposed at the distal portion of the elongate member, the tissue treatment member being in fluid communication with at least one of the lumens of the elongate member, and the elongate member having a continuous outer surface extending to the tissue treatment member; and an anchor member adjustably engaged with the tissue treatment member such that, when the anchor member extends from an opening in a distal end of the tissue treatment member and is disposed in a position at least partially in a pulmonary vein, the tissue treatment member is nonaligned with the anchor member and is annularly adjustable relative to the position of the anchor member from a first annular position in contact with a first ostial area to a second annular position in contact with a second ostial area.