Absorbable surgical fasteners for securing prosthetic devices to tissue

A surgical fastener for anchoring medical devices to tissue comprising:

• first and second legs lying in a first plane;
• third and fourth legs lying in a second plane that is orthogonal with the first plane;
• a bridge interconnecting proximal ends of said first, second, third and fourth legs for forming a closed end of said surgical fastener;
• each said leg having the proximal end, a distal end, an outer surface that extends between the proximal and distal ends, and an insertion tip with a distal point located at the distal end of each said leg, wherein said bridge has an outer perimeter, and wherein said insertion tips at the distal ends of said legs extend outside the outer perimeter of said bridge;
• each of said first, second, third and fourth legs having an insertion tool alignment guide formed in the outer surface of each said leg that extends from the proximal end to the distal end of each said leg and along a longitudinal axis that is aligned with said distal point of said insertion tip, wherein said insertion tool alignment guide terminates at an insertion tool seating surface that is proximal to said distal point of said insertion tip.