Anvil buttress attachment for surgical stapling apparatus

An anvil assembly of a surgical stapling device, the anvil assembly comprising:

• an anvil plate including a tissue facing surface and defining a plurality of longitudinally-extending rows of staple forming pockets therein, the anvil plate including a proximal end portion and a distal end portion;
• a hook and spring assembly supported at the proximal end portion of the anvil plate, the hook and spring assembly located adjacent the staple forming pockets, the hook and spring assembly including:
• a proximal end defining a first arm, the proximal end being anchored to the tissue facing surface of the anvil plate;
• and
• a distal end including a first finger, and a second finger extending distally toward the staple forming pockets, the first finger and the second finger being movable toward and away from the tissue facing surface of the anvil plate.

An anvil assembly of a surgical stapling device, the anvil assembly comprising:

• an anvil plate including a proximal end portion and a distal end portion the anvil plate including:
• a tissue facing surface and defining a central longitudinal slot defined through the tissue facing surface;
• a first plurality of longitudinally-extending rows of staple forming pockets defined along a first lateral side of the central longitudinal slot;
• and
• a second plurality of longitudinally-extending rows of staple forming pockets defined along a second lateral side of the central longitudinal slot, opposite the first lateral side;
• a first hook and spring assembly supported at the proximal end portion of the anvil plate, the first hook and spring assembly located adjacent the first plurality of longitudinally-extending rows of staple forming pockets, the first hook and spring assembly including:
• a proximal end defining a first arm, the proximal end being anchored to the tissue facing surface of the anvil plate;
• and
• a distal end including a first finger, and a second finger extending distally toward the first plurality of longitudinally-extending rows of staple forming pockets, the first finger and the second finger being movable toward and away from the tissue facing surface of the anvil plate;
• and
• a second hook and spring assembly supported at the proximal end portion of the anvil plate, the second hook and spring assembly located adjacent the second plurality of longitudinally-extending rows of staple forming pockets, the second hook and spring assembly including:
• a proximal end defining a first arm, the proximal end being anchored to the tissue facing surface of the anvil plate;
• and
• a distal end including a first finger, and a second finger extending distally toward the second plurality of longitudinally-extending rows of staple forming pockets, the first finger and the second finger being movable toward and away from the tissue facing surface of the anvil plate.