Patent ID: 8424740

Claim:
A surgical instrument, comprising: a firing drive configured to selectively generate a firing motion and a retraction motion, wherein said firing drive comprises: a firing trigger; a first drive member comprising a plurality of first gear teeth; and a second drive member comprising a plurality of second gear teeth; and a drive shaft, comprising: a first gear operably engageable with said first gear teeth; and a second gear operably engageable with said second gear teeth, wherein said firing trigger is selectively movable between a first position in which said firing trigger is operably engaged with said first drive member to transmit said firing motion to said drive shaft and a second position in which said firing trigger is operably engaged with said second drive member to transmit said retraction motion to said drive shaft, wherein when said firing trigger is in said first position said firing trigqer is operably disengaged from said second drive member, and wherein when said firing trigger is in said second position said firing trigger is operably disengaged from said first drive member.