Abstract: A medullary suture anchor including an elongated body having flat, angled end portions. A central bore extends through the body transverse to and centered on the longitudinal axis of the anchor. The anchor further includes channels extending along the sides of the body, such that a suture journaled through the center bore may be received within the longitudinal grooves during insertion of the anchor into a medullary canal.

Abstract: An anchor for attaching soft tissue to a bone comprising a head having a central dome with a suture bore extending therethrough. The dome includes a pair of substantially flat, oppositely disposed lands configured for engagement to a driving tool for inserting the anchor into the bone. A shaft extend from the head, and includes a first series of helical threads having a first diameter, and second series of helical threads interleaved with the first series of threads. The second series of threads has a diameter substantially different than the first diameter. The anchor employs a guide wire bore extending along the length of the anchor shaft.

Abstract: A bone anchor for securing a suture to a bone comprising a head portion and a shaft. The head portion includes a flat head portion for impeding axial migration of the bone anchor into the bone and a dome portion having a tunnel for receiving a suture. The shaft secures the bone anchor to the bone. It extends from the head portion to a flat, distal end. The shaft includes a plurality of tine segments disposed in planes substantially perpendicular to the longitudinal axis of the bone anchor and a plurality of grooves extending along the shaft that divide each of the plurality of tine segments into a plurality of tines. Each of the plurality of tines has an upper surface substantially perpendicular to the longitudinal axis of the anchor, a frustroconical portion, and an arcuate junction defined by the intersection of the upper surface and the frustroconical portion.