A suture anchor is provided comprising a generally quadrilaterally shaped body having a bore-abutting surface with a leading gripping edge at one end of the bore-abutting surface, a trailing gripping edge at the other end, and a closing surface having an arcuate portion and a linear portion engaging...http://www.google.com/patents/US6689154?utm_source=gb-gplus-sharePatent US6689154 - Suture anchor and associated method of implantation
