An antimicrobial, cut-resistant composite yarn has a core including at least one cut-resistant strand, and a cover including at least one strand wrapped around and enclosing the core. Fasteners extend through the vessel and are bent towards the incision to attach the flexible mounting structure to the vessel in a manner that controls the edge of the vessel adjacent to the incision. The rod may be configured to be inserted through the channel of the tube and secured inside the tube.