The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 07, 1997
Filed:
Nov. 18, 1994
Stephen M Howell, Elk Grove, CA (US);
Roy Carl Wiley, E. Warsaw, IN (US);
Other;
Abstract
An apparatus and a method for providing initial mechanical fixation of a hamstring graft and subsequent biologic bonding of the graft to the walls of a femoral tunnel. The apparatus includes a two-part screw assembly that is introduced through the lateral femoral condyle. The two-part screw assembly includes an outer screw and an inner screw. The outer screw includes a threaded body and an outwardly-extending nose portion that is of a diameter reduced from the threaded body. The nose portion provides a mechanical fixation point by functioning as a post within the femoral tunnel. A hamstring graft is looped around this post, mechanically fixing one end of the graft. Bone reamings, or mulch, is inserted using a bone graft impactor tool through a hollow throughbore axially defined within the body of the outer screw. The throughbore is in communication with an opening adjacent the nose portion and the mulch is deposited into the femoral tunnel around the tendon loop. The inner screw is inserted into the throughbore.