Surgical stapling device and fastener for pathological exam

A tool assembly comprising:

• a staple cartridge including:
• a cartridge body defining a longitudinal axis, a first central knife slot, a plurality of first staple receiving pockets, and a plurality of second staple receiving pockets, each of the plurality of first staple receiving pockets having a linear configuration and defining axes that extend in a direction parallel to the longitudinal axis of the cartridge body, the plurality of first staple receiving pockets aligned in rows on a first side of the first central knife slot, the plurality of second staple receiving pockets aligned in a single row on a second side of the first central knife slot, each of the plurality of second staple receiving pockets having a Y-shaped configuration, the Y-shaped configuration having a longitudinally extending pocket portion and spaced diverging linear pocket portions that extend from and continuously diverge from one end of the longitudinally extending portion;
• a plurality of first staples, each first staple of the plurality of first staples received within one of the plurality of first staple receiving pockets;
• and
• a plurality of second staples, each second staple of the plurality of second staples received within one of the plurality of second staple receiving pockets;
• and
• an anvil including an anvil plate defining a longitudinal axis and having a staple forming surface, the staple forming surface defining a second central knife slot, a plurality of first staple forming pockets, and a plurality of second staple forming pockets, the plurality of first staple forming pockets aligned in rows on a first side of the second central knife slot, and the plurality of second staple forming pockets aligned in a row on a second side of the second central knife slot, each second staple forming pocket of the plurality of second staple forming pockets being aligned in a row on a second side of the second central knife slot and having a Y-shape, each of the plurality of Y-shaped second staple forming pockets having a longitudinally extending forming channel and spaced diverging forming channels that extend from one end of the longitudinally extending forming channel.