Patent ID: 9011534
Filing Date: 2015-04-21
Classification: A61B,A61F,Y10S

Abstract:
1. A method for fixation of a soft tissue graft in a bone comprising: forming in the bone a tunnel defining an entrance opening and an exit opening at opposite ends of the tunnel, the entrance opening is at an anterior portion of the bone and the exit opening is at a superior portion of the bone between the anterior portion and a posterior portion of the bone, the tunnel including an anterior wall portion and a posterior wall portion on opposite sides of the tunnel, both the anterior wall portion and the posterior wall portion extend from the entrance opening to the exit opening, the anterior wall portion is on a first half of the entrance opening, and the posterior wall portion is on a second half of the entrance opening, the first half of the entrance opening is superior to the second half of the entrance opening and includes an anterior edge, the anterior wall portion is on a first half of the exit opening and the posterior wall portion is on a second half of the exit opening, the first half of the exit opening is anterior to the second half of the exit opening such that the first half is proximate to the anterior portion of the bone and the second half is proximate to the posterior portion of the bone; forming a counterbore in the bone perpendicular to the tunnel by removing both the anterior edge at the entrance opening and a part of the anterior wall portion extending from the entrance opening associated with the anterior edge; positioning the soft tissue graft in the tunnel such that the soft tissue graft extends through both the entrance opening and the exit opening of the tunnel; inserting a graft fixation apparatus through the tunnel and driving spikes of the graft fixation apparatus into the posterior wall portion of the tunnel to mount the graft fixation apparatus to the posterior wall portion of the tunnel; and securing the soft tissue graft inside the tunnel with the graft fixation apparatus.