A medical device includes a shaft, an end effector at a distal end of the shaft, the end effector having a first jaw that pivots relative to a second jaw about a pivot axis, a control mechanism engaging a surface of the first jaw, such that when the control mechanism translates relative to the pivot axis from a first state to a second state, the surface of the first jaw moves relative to the control mechanism and pivot about the pivot axis. The medical device further includes an actuator extending through the shaft and coupled to the control mechanism, where translation of the actuator translates the control mechanism from the first state to the second state.