The invention concerns a perfected device for the transosseous insertion of suture threads. This device comprises a main body (1) supporting a protruding cannula (3) provided with an active end (30)； the device comprises a flexible threadlike element (4), on which there are fashioned a sharp tip (40) and an opening (41) that serves for the threading of at least one suture thread (5), said element (4) being housed in a coaxially sliding manner inside said cannula (3) and, on command, exiting from the active end (30) of the cannula, assuming a curved position； the device comprises first means for producing the coaxial movement of the threadlike element (4) in the two directions with respect to the cannula (3) and second means for producing a coaxial movement of the threadlike element in the exiting direction from the cannula (3)； for a short tract, the movement produced by the second means is disengaged from the advancement of the threadlike element produced by the first means.
