he cannula is stepped rather than tapered; [0018]FIG. 4 is similar to FIG. 1, except that a slip knot replaces the bead; [0019]FIG. 5 is a cross-sectional view of another embodiment of this invention, in which the suture locking device comprises a pull locking ring in combination with a cannulated anchor; [0020]FIG. 6 is similar to FIG. 5, except showing the device in a locked position; [0021]FIG.