A fastener (13) for gripping tissue, the fastener comprising:a first end, a second end and a middle portion,a plurality of gripping elements (14) located on said first end of said fastener, at least a portionof said fastener being formed of a resilient material (15), said resilient material predisposing said fastener to form a curved or bent shape,said fastener having an open position and a closed position,wherein in said open position, said fastener is configured to pass through a generally cylindrical passage,wherein in said closed position, sad fastener assumes said curved shape, said gripping elements located on a concave side of sad fastener when said fastener is in said closed position, thereby grasping the tissue between said gripping elements.