A surgical instrument includes an end effector assembly, first and second handles, and a drive assembly. The handles are pivotable relative to one another between a spaced-apart position and an approximated position. The drive assembly includes a drive bar and a biasing member. The drive bar is coupled to the end effector assembly such that translation of the drive bar effects movement of the end effector assembly between first and second positions. First and second ends of the biasing member are coupled to the respective first and second handles. An intermediate portion of the biasing member is coupled to the drive bar such that movement of the handles from the spaced-apart to the approximated position displaces the intermediate portion and urges the drive bar to translate relative to the end effector assembly to effect movement of the end effector assembly between the first and second positions.
