Patient specific femoral prosthesis
AssigneeDePuy Synthes Products, Inc.
InventorsRodney E. Satterthwaite, Jeffrey A. McAnelly, Andrew M. Jacobs
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Abstract
A femoral prosthesis system for an orthopaedic hip implant and method of use is disclosed. The prosthesis system includes a femoral stem component that includes a core body and a casing that encases the core body. The casing can be additively manufactured such that the core body defines a predetermined orientation in the core body among a plurality of permissible predetermined orientations. The femoral stem component can further include a neck and a trunnion that extends from the neck. The neck can extend out with respect to the core body at a predetermined angle within a range of permissible predetermined angles.
Claims11
A femoral prosthesis comprising:
- an elongate core body that extends along a central core body axis from a proximal core body end to a distal core body end opposite the proximal core body end, wherein the core body is configured to be received in a medullary canal of a femur;
- a neck that extends out with respect to the proximal core body end;
- and
- a porous casing that encases at least a portion of the core body, wherein the porous casing defines an inner casing surface that faces the core body and an outer casing surface opposite the inner casing surface,
- wherein the inner surface of the porous casing extends along a central inner casing axis that is substantially coincident with the central core body axis, and the outer surface of the porous casing extends along a central outer casing axis that intersects the central inner casing axis within an outer perimeter of the core body with respect to a side elevation view of the stem component that includes the proximal core body end and the distal core body end.
Dependencies are inferred from the claim text.