Fasteners and fastener delivery devices for affixing sheet-like materials to bone or tissue

A delivery tool for surgical staples comprising:

• an outer sheath including a position retention sleeve positioned at a distal end thereof and a lumen extending therethrough;
• a longitudinally extendable staple delivery assembly disposed within the lumen of the outer sheath;
• and
• a handle assembly coupled to a proximal portion of the outer sheath, wherein the handle assembly includes a trigger operatively coupled to the staple delivery assembly;
• wherein the lumen of the outer sheath is sized and adapted to successively receive a pilot hole trocar and the longitudinally extendable staple delivery assembly;
• the longitudinally extendable staple delivery assembly further comprising:
• first and second staple setting rods each having a distal end extendable distally beyond the outer sheath and a proximal portion including a shoulder sized and adapted to abut a proximal surface of a surgical staple,
• wherein the first and second staple setting rods are actively coupled to the trigger for advancement relative to the position retention sleeve;
• and
• wherein operation of the trigger of the handle assembly advances the first and second staple setting rods distally to deliver the surgical staple.