A device includes a first member extending along an axis and including an inner surface defining a cavity. The inner surface defines a locking element extending into the cavity. First and second openings extend the first member and are in communication with the cavity. A pivoting member is movably disposed in the cavity and includes an inner surface defining a passageway. An outer surface of the pivoting member includes grooves configured to engage the locking element. A second member is disposed within the passageway. The pivoting member is movable between a first orientation such that the locking element is spaced apart from the grooves and the pivoting member is rotatable to a selected trajectory relative to the axis and a second orientation such that the locking element engages one of the grooves and the second member is fixed in the selected trajectory.
