Stapler cartridge for a curved cutter stapler

A surgical instrument adapted for applying a plurality of surgical fasteners to body tissue 5 comprises: an anvil and a cartridge housing containing a plurality of surgical fasteners and a knife, the cartridge housing and anvil being relatively movable between a first spaced apart position and a second position in close approximation with one another. A firing mechanism is 10 associated with the cartridge housing for ejecting the surgical fasteners and the knife from the cartridge housing to be driven against the anvil. The cartridge housing forms a part of a cartridge module that includes a driver disposed to push staples out of the cartridge housing and a knife holder disposed immediately proximal of the driver in the cartridge housing. The knife holder is attached to the knife which extends distally from the knife 15 holder through a slot in the driver and through a slot in the cartridge housing. The knife holder includes a detent post that extends through a slot in the cartridge housing, the knife holder detent post is disposed to contact a detent protrusion of the cartridge slot during the longitudinal travel of the knife and knife holder and the driver includes a detent post that is disposed to contact proximal and distal detent protrusions formed on the cartridge housing 20 slot. Ul) Nk 00 Ul') cn CD. co C\j co m Cj 00 CD 4:m Cj CD CD C\l co m co co cli co Cj Cj 00 C> Cj C-i co