Patent ID: 7674256
Filing Date: 2010-03-09
Classification: A61B

Abstract:
1. 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 at least one lumen extending therethrough; a tissue treatment member disposed at the distal portion of the elongate member, the tissue treatment member being in fluid communication with the lumen; an anchor member adjustably engaged with the tissue treatment member such that, when the anchor member is disposed distally of the tissue treatment member and 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; and a steerable portion disposed between the tissue treatment member and the anchor member when the anchor member is positioned distally of the tissue treatment member, wherein the steerable portion includes a shape memory element having a curved portion.