Patent ID: 7089063

Claim:
A method for placing a therapeutic or diagnostic device within a body structure comprising: providing a catheter with proximal and distal end portions and a guidewire lumen which extends along at least a portion of said distal end portion and terminates at a distal port, said catheter having said therapeutic or diagnostic device disposed on said distal end portion, said catheter having a deflectable tip located along said distal end portion, the deflectable tip being deflectable by manipulation of a pull wire; slidably engaging a guidewire within said guidewire lumen; advancing said distal end portion of said catheter into a patient's body; deflecting said deflectable tip such that said distal port is positioned to direct advancement of said guidewire toward said body structure; advancing said guidewire out of said distal port and toward said body structure; and advancing said catheter over said guidewire such that said therapeutic or diagnostic device is positioned at said body structure.