Patent ID: RE42959

Claim:
Apparatus for treating an interior region of a cardiac chamber, the apparatus comprising: a catheter configured for insertion into a cardiac chamber, the catheter having a deflectable end region; an end effector disposed within distal to the delectable end region, the end effector adapted to form a needle track at a treatment site in an interior region of the cardiac chamber, the end effector movable between a first position, wherein the end effector is retracted within the end region, and a second position, wherein the end effector is extended beyond a distal endface of the catheter; and means for moving the end region between the first and second positions, wherein the end effector further comprises means for depositing a controlled amount of a bioactive agent at the treatment site and wherein the catheter has a plurality of lumens, one of which contains the bioactive agent and wherein the catheter has a conductor extending from a proximal end of the catheter to an electrode which is distal to the deflectable end region .