Universal handle for surgical instruments

A universal surgical handle comprising:

• a body having a moveable handle, the movable handle transitionable from a home position to a first or second mode of operation;
• an elongate member extending distally from the body defining a longitudinal axis, the elongate member adapted to be coupled to a linear loading unit and to a circular loading unit;
• an actuation shaft defining a first lock slot and a second lock slot spaced axially from the first lock slot, the movable handle operatively associated with the actuation shaft to effect longitudinal movement of the actuation shaft;
• and
• a fire lock mechanism having at least one lock pawl, the at least one lock pawl received within the first lock slot in the first mode of operation of the handle to lock the actuation shaft in a first longitudinal position within the body and received within the second lock slot in the second mode of operation of the handle to lock the actuation shaft in a second longitudinal position different from the first longitudinal position within the body,
• wherein the handle transitions from the home position to the first mode of operation in response to a linear loading unit being coupled to the elongate member and transitions from the home position to the second mode of operation in response to a circular loading unit being coupled to the elongate member.