Adjunct material for delivery to colon tissue

An end effector for a surgical instrument, comprising:

• a first jaw having a cartridge body removably attached thereto, the cartridge body having on a tissue-facing surface thereof a plurality of staple cavities configured to seat staples therein;
• a second jaw having an anvil with a plurality of staple forming cavities formed on a tissue-facing surface thereof, wherein at least one of the first and second jaws is movable relative to the other;
• a biocompatible adjunct material formed of a fiber matrix and releasably retained on at least one of the tissue-facing surfaces of the first and second jaws and configured to be delivered to tissue by deployment of the staples in the cartridge body to form at least one line of deployed staples, the fiber matrix including a first plurality of longitudinal fibers and a second plurality of longitudinal fibers, the second plurality of longitudinal fibers extending transversely to the first plurality of longitudinal fibers and configured to detach from the first plurality of longitudinal fibers following the deployment of the staples;
• and
• at least one medicant, the at least one medicant being releasable from the adjunct material, and the at least one medicant being effective to encourage healing of blood vessels along the at least one line of deployed staples.