Patent ID: 11864756
Assignee: CILAG GMBH INTERNATIONAL
Field: Medical technology (Instruments)
Classification: CPC A | IPC A  F

Claim 20:
21. A surgical instrument, comprising:
a surgical end effector comprising a firing member configured to be actuated longitudinally;
an upper chain-drive assembly operably interfacing with a top portion of said firing member;
a lower chain-drive assembly operably interfacing with a bottom portion of said firing member, wherein said lower chain-drive assembly is permanently spaced from said upper chain-drive assembly and out of engagement therewith; and
a drive member, wherein said drive member operably interfaces with said upper chain-drive assembly and said lower chain-drive assembly to cause said upper chain-drive assembly and said lower chain-drive assembly to apply axial drive motions to said firing member to move said firing member between a starting position and an ending position within said surgical end effector.