Patent
Knee joint prosthesis
TLDR
In this article, a femoral component in the form of a shell member having two condylar portions with major convex bearing surfaces areas, which portions are bridged at one end by a portion defining a trough between the convex areas.Abstract:
A prosthetic knee joint device comprises a femoral component in the form of a shell member having two condylar portions with major convex bearing surfaces areas, which portions are bridged at one end by a portion defining a trough between the convex areas. An associated tibial component has similar portions in a platform bearing member defining major concave bearing surface areas and a ridge therebetween. The convex bearing areas are longer than the concave bearing areas and generally U-shaped longitudinally to simulate the corresponding shaping in the natural joint from which the shell member can in fact be derived. The concave bearing areas however simulate the menisci of the natural joint different phases of rotation to provide an optimized congruity between the bearing surfaces during rotation of the predetermined geometry of the prosthesis as compared to the variable geometry in the natural joint.read more
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Patent
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Patent
Modular knee prosthesis
Erin M. Johnson,Joseph Saladino +1 more
TL;DR: In this article, a femoral knee prosthesis and a tibial knee are constructed from modular components that are connectable in-vivo to form the prosthetic knee system.
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Patent
Prosthesis for hip joint
TL;DR: In this paper, a spike-like stem is inserted into the femur and an arm integral with the upper end of the stem projects outwardly at an obtuse angle relative to it and a ball is attached at the outer end for connecting the prosthesis to the acetabulum or artificial socket.