A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
A61F 2/28 (2006.01) A61B 17/17 (2006.01) A61F 2/32 (2006.01) A61F 2/36 (2006.01) A61F 2/46 (2006.01) A61F 2/30 (2006.01)
Patent
CA 2050809
ABSTRACT An orthopaedic prosthesis for implantation in a bone, the prosthesis including a collar extending outwardly therefrom. The collar includes an access recess aligned above the bone cement when the stem is implanted with cement in bone, or aligned above the bone/implant interface when the stem is biologically affixed to the bone. The access recess may be a dimple partially extending into the collar or it may be a through hole. The dimple provides a preset drill start for a drill to be aligned therewith for drilling through the collar to form a hole therethrough. In either case, whether starting with a dimple and then forming a hole or starting directly with a through hole, the hole may be progressively enlarged by use of sequentially larger drill sizes. Tools, such as chisels or the like, are inserted through the hole in the collar to break up the bone cement beneath the collar if a cemented stem, or to help break the bond between the stem and the bone if a biologically affixed stem, to help loosen the prosthesis from the bone to facilitate removal of the stem. A method of removing such a prosthesis is also disclosed. LAZZHORI.PO
Hori Roy Y.
Lazzeri Mark A.
Bristol-Myers Squibb Company
Gowling Lafleur Henderson Llp
LandOfFree
Orthopaedic prosthesis with access recess in collar... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Orthopaedic prosthesis with access recess in collar..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Orthopaedic prosthesis with access recess in collar... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1951345