Assemblies for surgical stapling instruments

A loading assembly usable with a surgical instrument, the loading assembly comprising:

• a cartridge having a cartridge body with rows of staple pockets that are configured to retain staples therein;
• a carrier including:
• a platform configured to releasably retain the cartridge,
• a shell laterally spaced from the platform and parallel therewith, the shell including a passage that is configured to receive a jaw member of the surgical instrument therethrough, and
• an arcuate hinge flexibly connecting the platform and the shell;
• and
• a surgical buttress having a first orifice in a distal region thereof and a second orifice in a proximal region thereof, the first orifice attachable to a peg located in a distal region of the shell and the second orifice attachable to a post located in a distal region of the cartridge such that a portion of the surgical buttress extends through the passage of the shell.

A tool assembly usable with a surgical stapling instrument, the tool assembly comprising:

• a first jaw defining a U-shaped channel;
• a second jaw pivotable relative to the first jaw between an approximated position and a spaced apart position;
• a cartridge disposed in the U-shaped channel, the cartridge including protrusions extending from a surface of the cartridge towards the second jaw;
• and
• an anvil coupled to the second jaw, the anvil including knobs extending from a surface of the anvil towards the protrusions, the knobs and the protrusions configured to capture tissue therebetween, wherein the protrusions are partially deformable by the knobs with the second jaw in an approximated position.