Patent ID: 8002812
Filing Date: 2011-08-23
Classification: A61B

Abstract:
1. A bone fastening system, comprising: an implant including a threaded screw, a distal nut with a threaded bore, and a proximal washer; an instrument having a handle and a barrel terminating in a holder for the washer; a c-shaped bridge assembly having a first end connected to the barrel and a second end including a holder for the nut in axial alignment with the washer; a manually operated control on the instrument coupled to an elongated element in the barrel, the operation of the control causing the washer to move toward the nut, thereby applying compressive pressure to bone portions to be fastened together; and and drive mechanism disposed within the barrel, the drive mechanism having a distal end with a holder for the screw and a proximal end that is turned by a user, thereby advancing the screw along the alignment axis through the washer to the nut to fasten the bone portions under compression.