Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis – Bone
Patent
1999-01-07
2000-10-10
Milano, Michael
Prosthesis (i.e., artificial body members), parts thereof, or ai
Implantable prosthesis
Bone
623 2228, A61F 232
Patent
active
061297658
ABSTRACT:
An implantable orthopedic prosthesis is provided that includes a shell having a substantially concave inner surface defining a cavity and a substantially annular groove formed therein. The prosthesis further includes a polymeric insert that is positionable within the cavity of the shell, and that has a substantially convex outer surface and a circumferential protrusion projecting therefrom. The protrusion has a substantially trapezoidal cross-section wherein at least one of the sides of the trapezoid is substantially parallel to the axis of symmetry of the insert. The cross-section of the protrusion is substantially congruent to the cross-section of the groove of the shell, and the inner surface of the shell is substantially congruent with a corresponding portion of the outer surface of the insert when the insert is properly positioned within the cavity of the shell.
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Wentz, et al., "Evaluation of Micromotion of the Inter-Op Acetabular System".
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Lopez Jorge
Van der meulen Steve
Lyren Philip S.
Milano Michael
Sulzer Orthopedics Inc.
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