Assembly of a ceramic head on a metal rod for a hip prosthesis

Details Assembly of a ceramic head on a metal rod for a hip prosthesis Assembly of a ceramic head on a metal rod for a hip prosthesis

1989-06-28

1990-10-23

Frinks, Ronald

Prosthesis (i.e., artificial body members), parts thereof, or ai

Implantable prosthesis

Bone

623 22, A61F 236, A61F 232

Patent

active

049648691

ABSTRACT:
An assembly of a ceramic head fixed to a rod, which assembly is a component of a hip prosthesis that has improved distribution of the stresses transferred from the rod to the ceramic head. The ceramic head includes a blind recess, generally in the shape of a truncated cone, into which the male end of the rod is nested, in which this nesting together is provided without play between the ceramic head and the end of the rod in only a portion of the depth of the recess, while in the remaining portion of the recess there is no contact between the ceramic head and the end of the rod.

REFERENCES:
patent: 4012795 (1977-03-01), Doore et al.
patent: 4058856 (1977-11-01), Doerre et al.
patent: 4184213 (1980-01-01), Heimke
patent: 4318190 (1982-03-01), Cortesi
patent: 4636218 (1987-01-01), Fukuura et al.

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