Patent ID: 9149299
Filing Date: 2015-10-06
Classification: A61B

Abstract:
1. A spinal implant set comprising: a connecting element; at least one bone screw, the bone screw having a longitudinal extent in an axial direction and comprising a head with a seat for the connecting element; a quick closure element comprising a locking arrangement forming a T shape comprising at least a hook portion and a filler portion including a first side and a second side; a clamping element, wherein the head of the bone screw comprises a curvilinear outward lateral face and a stop arrangement comprising at least one axial stop face, a first twist stop face comprising a first side of an outward lateral surface of the stop arrangement, and a second twist stop face comprising a second side of the outward lateral surface of the stop arrangement, the second side of the outward lateral surface facing the first side of the outward lateral surface, the first and second sides each extending substantially parallel to the axial direction; the clamping element is positioned and configured to be inserted in the head of the bone screw and includes an adjustable connection with the quick closure element; and the hook portion comprising a curvilinear inner surface configured to face the curvilinear outward lateral face, so as to enable twisting of the hook portion on the head of the bone screw, wherein after the twisting, the hook portion is retractable axially to a locked position in which the hook portion engages axially with the axial stop face and the filler portion engages circumferentially and in a bidirectional manner, both clockwise and counterclockwise, with the two twist stop faces, such that the first side of the filler portion faces the first twist stop face, and the second side of the filler portion faces the second twist stop face, the quick closure element in the locked position being attached to the bone screw; and the clamping element is configured to be adjusted to create an axial force between the head of the screw and the quick closure element after the connecting element is placed in the head of the screw, and thus the quick closure element is locked against axial removal from and clockwise and counterclockwise rotation with respect to the bone screw.