The medical device for engaging tissue comprises a housing (42) defining an internal passageway and a longitudinal axis extending between proximal and distal ends of the housing, a first jaw (44) rotatable relative to the housing, the first jaw (44) having proximal and distal ends, and a second jaw (46) rotatable relative to the housing, the second jaw (46) having proximal and distal ends. A driver (148) is engaged with the proximal ends of the first and second jaws, and longitudinal movement of the driver rotates the first and second jaws relative to the housing. A biasing strip (190) is operatively connected to at least one of the first and second jaws to bias the jaws radially, wherein a middle portion of the biasing strip (190) is fixed to a distal end (166) of the driver and moves therewith. An elongated drive wire (22) is selectively connected to the driver for longitudinal movement therewith.
