Mechanical assembly including exterior surface preparation
OwnerKambiz Behzadiinventor
Life of this patent
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Abstract
A system and method for improving mechanical assemblies, such as prosthetic implants, intended to be installed in living tissue such as bone. Force-imparting devices are adapted and may include angularity, which may be introduced with specialized additive manufacturing, which may impart congruent cross-sections while providing variable stiffness. In some cases, the variable stiffness may be “stretchy” in a longitudinal direction and “rigid” in a radial directional which may provide an assembly bias. Additive manufacturing may allow the material of a prosthesis to be varied (e.g., density/porosity) to create variable stiffness over a length.
Claims15
A modular implant for at least a partial insertion into a portion of a bone, the portion of bone having a bone variable material properties profile, comprising:
- a stem configured for installation into the portion of bone, said stem including a cavity;
- a neck configured for a first engagement with said cavity with said first engagement configured to mechanically join said neck to said stem, said neck including a trunnion;
- a head configured for a second engagement with said trunnion with said second engagement configured to mechanically join said head to said neck;
- and
- a support system disposed in a region of a foundation of the implant, said support system configured to provide a propensity for a resistance to a fracture of said region.
Dependencies are inferred from the claim text.