A catheter has an elongate tubular component that defines a pull wire lumen, which extends along at least a portion of a length thereof. A pull wire extends within the pull wire lumen with a distal end of the pull wire being secured near a distal end of the catheter. The catheter includes a pull wire actuation mechanism slidably disposed thereon that is operably coupled to a proximal end of the pull wire. The pull wire actuation mechanism includes a first or upper housing portion that is longitudinally translatable in a first direction relative to the guide catheter and a second or lower housing portion that is longitudinally translatable in an opposite, second direction relative to the catheter to actuate the pull wire and selectively operate the distal end thereof.
