An apparatus for providing access to a target site in a living body, comprises a first elongated member including a proximal opening to a first lumen and a branching point at a distal end thereof and a second lumen open to the first lumen at the branching point, the second lumen extending to a second lumen distal opening at a first connector, the first connector configured to engage a proximal end of a first lumen of a multi-lumen catheter in combination with a third lumen open to the first lumen at the branching point, the third lumen extending to a third lumen distal opening at a second connector, the second connector configured to engage a proximal end of a second lumen of a multi-lumen catheter.
