#$%^&*AU2009201814B820140828.pdf#####KNIFE LOCKOUT MECHANISMS FOR SURGICAL INSTRUMENT ABSTRACT A cartridge assembly (170) for use with a surgical stapling instrument (100) is disclosed. The cartridge assembly (170) includes a channel (210), a cover, a staple 5 cartridge and a knife (400). The channel (210) includes a protrusion thereon. The cover is configured for mechanical engagement with the channel (210) and includes a blocking member and a surface defining a plane. At least a portion of the blocking member is configured to move away from the plane upon contact with the protrusion. The staple cartridge is configured for mechanical engagement with the cover. The blocking member 1o is configured to substantially prevent distal translation of the knife (400) after the knife (400) has been translated proximally past a predetermined position.1/11 100 120 170 160 150 140 0 c 110 FIG. 1 120 196 122 192 A dl 300 194 FIG. 2
