Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis – Bone
Reexamination Certificate
1999-09-01
2001-08-07
Smith, Jeffrey A. (Department: 3732)
Prosthesis (i.e., artificial body members), parts thereof, or ai
Implantable prosthesis
Bone
C623S018110
Reexamination Certificate
active
06270529
ABSTRACT:
CROSS-REFERENCE TO RELATED APPLICATIONS
Not Applicable.
STATEMENT RE FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
Not Applicable.
REFERENCE TO A “MICROFICHE APPENDIX”
Not Applicable.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates generally to implantable orthopaedic prostheses and more particularly to a system including modular radial head implants, sizers for trial reduction of the joint, and instrumentation for preparing the radial head, implanting the sizers, assembling the implants, etc.
2. Information Disclosure Statement
Prostheses for replacing or repairing the radial head are well known in the prior art. The Sorbie-Questor® Total Elbow System includes a radial head component having a metal base and a polyethylene articulating surface cap molded onto the metal base. The Swanson Titanium Radial Head Implant is a one-piece implant manufactured from commercially pure titanium that features nitrogen ion implantation for increased surface hardness, and is provided in five different sizes to meet various operative requirements.
BRIEF SUMMARY OF THE INVENTION
The present invention provides a modular implant for replacing the head of the proximal end of a radius and for articulating with the capitellum of a humerus. The implant of the present invention comprises, in general, a modular head including a proximal end having a concavity therein for articulating with the capitellum of the humerus, and including a first lock member; and a modular body including distal end for connecting to the radius, including a second lock member for coacting with the first lock member of the modular head to lock the modular head and the modular body together, and having a drainage passage allowing fluid trapped between the first and second lock members to drain out.
REFERENCES:
patent: 3739403 (1973-06-01), Nicolle
patent: 4242758 (1981-01-01), Amis et al.
patent: 5030237 (1991-07-01), Sorbie et al.
patent: 5728161 (1998-03-01), Camino et al.
patent: 5769093 (1998-06-01), Bays
patent: 5782922 (1998-07-01), Vandewalle
patent: 5879395 (1999-03-01), Tornier et al.
patent: 5885297 (1999-03-01), Matsen, III
“The Sorbie-Questor® Total Elbow System”, ©1996, Wright Medical Technology, Inc.
“Swanson Titanium Radial Head Implant, regular and narrow stem” © 1995, Wright Medical Technology, Inc.
Grusin Nathaniel Kelley
Johnson James A.
King Graham J. W.
Patterson Stuart D.
Raynor Donald E.
Smith Jeffrey A.
Walker, McKenzie & Walker P.C.
Wright Medical Technology Inc.
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