Tissue thickness compensator comprising a reservoir

A staple cartridge assembly, comprising:

• a cartridge body comprising a plurality of staple cavities;
• staples, wherein each said staple is at least partially positionable within a said staple cavity, and wherein each said staple is movable between an unfired position and a fired position;
• a compressible tissue thickness compensator, wherein said staples are configured to at least partially capture said tissue thickness compensator when said staples are moved between their unfired positions and their fired positions;
• and
• a plurality of medicament capsules positioned within said tissue thickness compensator, wherein each said medicament capsule is positioned over a said staple cavity, and wherein said staple cavities and said staples are configured and arranged such that said medicament capsules are crushed within said staples when said staples are moved between their unfired positions and their fired positions.

A staple cartridge assembly, comprising:

• a cartridge body comprising a plurality of staple cavities;
• staples, wherein each said staple is at least partially positionable within a said staple cavity, and wherein each said staple is movable between an unfired position and a fired position;
• a compressible tissue thickness compensator, wherein said staples are configured to at least partially capture said tissue thickness compensator when said staples are moved between their unfired positions and their fired positions;
• and
• a plurality of medicament capsules positioned within said tissue thickness compensator, wherein each said medicament capsule comprises a shell, a cavity defined in said shell, and a medicament positioned in said cavity, wherein said shell comprises a through-hole extending into said cavity, and wherein said medicament can flow out of said medicament capsule through said through-hole.