Staple cartridge assembly comprising various tissue compression gaps and staple forming gaps

A staple cartridge, comprising:

• (a) a deck;
• (b) a staple cavity defined in said deck, wherein said staple cavity comprises:
• (i) a first cavity wall defining a first cavity plane;
• and
• (ii) a second cavity wall defining a second cavity plane;
• (c) a staple removably stored in said staple cavity, wherein said staple comprises:
• (i) a base defining a base plane, wherein said base plane is parallel to said first cavity plane;
• and
• (ii) a leg extending from said base, wherein said leg comprises a round cross-sectional shape;
• and
• (d) an extension extending from said deck, wherein said leg is movable along said extension during a staple firing stroke, and wherein said extension comprises:
• (i) a first extension wall extending within said first cavity plane;
• (ii) a second extension wall extending within said second cavity plane, wherein said second extension wall extends orthogonally from said first extension wall;
• and
• (iii) a curved surface extending from said deck, wherein said curved surface includes a first curvature extending from said deck to said first cavity plane, wherein said curved surface includes a second curvature that extends from said deck and intersects with said second cavity plane.

A fastener cartridge, comprising:

• (a) a deck;
• (b) a cavity defined in said deck, wherein said cavity comprises cavity walls extending orthogonally from said deck;
• (c) a fastener removably stored in said cavity, wherein said fastener comprises:
• (i) a base;
• (ii) a first leg extending from said base, wherein said first leg comprises a round cross-sectional shape and a tissue-piercing tip;
• and
• (iii) a second leg extending from said base, wherein said second leg comprises a round cross-sectional shape and a tissue-piercing tip;
• (d) a first projection extending from said deck, wherein said first leg is movable along said first projection during a staple firing stroke, and wherein said first projection comprises:
• (i) a first projection wall extending from a first cavity wall of said cavity walls;
• (ii) a second projection wall extending from a second cavity wall of said cavity walls, wherein said second projection wall extends directly from said first projection wall in an orthogonal direction;
• and
• (iii) a first curved surface extending from said deck;
• and
• (e) a second projection extending from said deck, wherein said second leg is movable along said second projection during the staple firing stroke, and wherein said second projection comprises:
• (i) a third projection wall extending from a third cavity wall of said cavity walls;
• (ii) a fourth projection wall extending from a fourth cavity wall of said cavity walls, wherein said fourth projection wall extends directly from said third projection wall in an orthogonal direction;
• and
• (iii) a second curved surface extending from said deck.